CA2655646C - Well cleanup tool with real time condition feedback to the surface - Google Patents
Well cleanup tool with real time condition feedback to the surface Download PDFInfo
- Publication number
- CA2655646C CA2655646C CA2655646A CA2655646A CA2655646C CA 2655646 C CA2655646 C CA 2655646C CA 2655646 A CA2655646 A CA 2655646A CA 2655646 A CA2655646 A CA 2655646A CA 2655646 C CA2655646 C CA 2655646C
- Authority
- CA
- Canada
- Prior art keywords
- tool
- signal
- flow
- sensor
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
- E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B27/00—Containers for collecting or depositing substances in boreholes or wells, e.g. bailers, baskets or buckets for collecting mud or sand; Drill bits with means for collecting substances, e.g. valve drill bits
- E21B27/005—Collecting means with a strainer
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B29/00—Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B29/00—Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
- E21B29/002—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
Abstract
A flow sensor is incorporated into a junk basket to sense a flow stoppage due to a plugged screen or plugged cuttings ports in a mill. The sensor triggers a signal to the surface to warn personnel that a problem exists before the equipment is damaged. The sensor signal to the surface can take a variety of forms including mud pulses, a detectable pressure buildup at the surface, electromagnetic energy, electrical signal on hard wire or radio signals in a wifi system to name a few options. Surface personnel can interrupt the signal to take corrective action that generally involves pulling out of the hole or reverse circulating to try to clear the screen or mill cuttings inlets. Other variables can be measured such as the volume or weight or rate of change of either and a signal can be sent to the surface corresponding to one of those variables to allow them to be detected at the surface in near real time.
Description
APPLICATION FOR PATENT
Title: Well Cleanup Tool with Real Time Condition Feedback to the Surface Inventors: Gerald D. Lynde; John P. Davis and Steve Rosenblatt FIELD OF THE INVENTION
[00011 The field of this invention relates to well cleanup tools that collect debris and more particularly tools that collect cuttings from milling using an eductor to draw them into the tool body.
BACKGROUND OF THE INVENTION
[00021 When milling out a tool or pipe in the well cuttings are generated that need to be removed from the milling site and collected. The bottom hole assembly that includes the mill also has what is sometimes referred to as a junk basket.
These tools operate on different principles and have the common objective of separation of circulating fluid from the cuttings. This is generally done by directing the flow laden with cuttings into the tool having a catch chamber. The fluid is directed through a screen, leaving the cuttings behind. At some point the cuttings fall down into the collection volume below and outside the screen.
[0003] The operation of one type of such tool is illustrated in Figure 1.
In this known tool, flow comes from the surface through a string (not shown) and enters passage in the tool 12. Flow goes through the eductor 14 and exits as shown by two headed arrow 16. Arrow 16 indicates that the exiting motive fluid can go uphole and downhole.
The eductor 14 reduces pressure in chamber 18 all the way down to the lower inlet 20 on the tool 12. Arrow 22 represents fluid indicated by arrow 16 that has traveled down the annulus 24 between tool 12 and tubular 26 as well as well fluid below tool 12 that is sucked in due to the venturi effect of the eductor 14. Entering fluid at lower inlet 20 goes through a tube 28 that has a hat with openings under it 30. Arrows 32 indicate the exiting flow out from under hat 30 that next goes to the outside of screen 34. At this point the cuttings are stopped by the screen 34 while the fluid goes on through and into chamber 18 as indicated by arrow 36. The stream indicated by arrow 36 blends and becomes part of as indicated by arrow 36. The stream indicated by arrow 36 blends and becomes part of the stream exiting eductor 14 as indicted by arrow 16. When flow into passage 10 is shut off, the accumulated debris on the outside of screen 34 simply falls down to around the outside of tube 28. The presence of the hat 30 keeps the debris from falling into tube 28 deflecting debris that lands on it off to the side and into the annular catch area in the tool 38.
[0004] This is how this tool is supposed to work when everything is going right.
However, things don't always go right downhole and the operator at the surface using this tool in a milling operation had no information that things downhole may not be going according to plan. The main two things that can cause problems with this type of tool or any other junk basket tool is that the screen 34 can clog with debris. Those skilled in the art will appreciate that flow downhole in annulus 24 goes all the way down to the mill and enters openings in the mill to reach lower inlet 20 of the tool 12. If the screen clogs the downhole component of the flow indicated by arrow 16 stops. As a result, there is a diminished or a total lack of flow into the mill ports to remove the cuttings and take away the heat of milling. The mill can overheat or get stuck in cuttings or both.
If the mill sticks and turning force is still applied from the surface, the connections to the mill can fail. Sometimes, without clogging screen 34, the mill can create cutting shapes that simply just ball up around the mill. Here again, if the balling up occurs, flow trying to go downhole in annulus 28 will be cut off. The inlet openings for the cuttings in the mill may become blocked limiting or cutting off flow into lower inlet 20.
[0005] What the operator needs and currently doesn't have is a way to know that a condition has developed downhole at the mill or at the screen 34 that needs to be immediately addressed to avoid downhole equipment failure. While some operator with enough experience cleaning up a hole may be able to do this by gut feel in certain situations like removing sand, using gut feel is not reliable and in milling as opposed to simple debris cleanout, rules of thumb about how fast the bottom hole assembly moves into sand when removing it from the wellbore are simply useless.
Title: Well Cleanup Tool with Real Time Condition Feedback to the Surface Inventors: Gerald D. Lynde; John P. Davis and Steve Rosenblatt FIELD OF THE INVENTION
[00011 The field of this invention relates to well cleanup tools that collect debris and more particularly tools that collect cuttings from milling using an eductor to draw them into the tool body.
BACKGROUND OF THE INVENTION
[00021 When milling out a tool or pipe in the well cuttings are generated that need to be removed from the milling site and collected. The bottom hole assembly that includes the mill also has what is sometimes referred to as a junk basket.
These tools operate on different principles and have the common objective of separation of circulating fluid from the cuttings. This is generally done by directing the flow laden with cuttings into the tool having a catch chamber. The fluid is directed through a screen, leaving the cuttings behind. At some point the cuttings fall down into the collection volume below and outside the screen.
[0003] The operation of one type of such tool is illustrated in Figure 1.
In this known tool, flow comes from the surface through a string (not shown) and enters passage in the tool 12. Flow goes through the eductor 14 and exits as shown by two headed arrow 16. Arrow 16 indicates that the exiting motive fluid can go uphole and downhole.
The eductor 14 reduces pressure in chamber 18 all the way down to the lower inlet 20 on the tool 12. Arrow 22 represents fluid indicated by arrow 16 that has traveled down the annulus 24 between tool 12 and tubular 26 as well as well fluid below tool 12 that is sucked in due to the venturi effect of the eductor 14. Entering fluid at lower inlet 20 goes through a tube 28 that has a hat with openings under it 30. Arrows 32 indicate the exiting flow out from under hat 30 that next goes to the outside of screen 34. At this point the cuttings are stopped by the screen 34 while the fluid goes on through and into chamber 18 as indicated by arrow 36. The stream indicated by arrow 36 blends and becomes part of as indicated by arrow 36. The stream indicated by arrow 36 blends and becomes part of the stream exiting eductor 14 as indicted by arrow 16. When flow into passage 10 is shut off, the accumulated debris on the outside of screen 34 simply falls down to around the outside of tube 28. The presence of the hat 30 keeps the debris from falling into tube 28 deflecting debris that lands on it off to the side and into the annular catch area in the tool 38.
[0004] This is how this tool is supposed to work when everything is going right.
However, things don't always go right downhole and the operator at the surface using this tool in a milling operation had no information that things downhole may not be going according to plan. The main two things that can cause problems with this type of tool or any other junk basket tool is that the screen 34 can clog with debris. Those skilled in the art will appreciate that flow downhole in annulus 24 goes all the way down to the mill and enters openings in the mill to reach lower inlet 20 of the tool 12. If the screen clogs the downhole component of the flow indicated by arrow 16 stops. As a result, there is a diminished or a total lack of flow into the mill ports to remove the cuttings and take away the heat of milling. The mill can overheat or get stuck in cuttings or both.
If the mill sticks and turning force is still applied from the surface, the connections to the mill can fail. Sometimes, without clogging screen 34, the mill can create cutting shapes that simply just ball up around the mill. Here again, if the balling up occurs, flow trying to go downhole in annulus 28 will be cut off. The inlet openings for the cuttings in the mill may become blocked limiting or cutting off flow into lower inlet 20.
[0005] What the operator needs and currently doesn't have is a way to know that a condition has developed downhole at the mill or at the screen 34 that needs to be immediately addressed to avoid downhole equipment failure. While some operator with enough experience cleaning up a hole may be able to do this by gut feel in certain situations like removing sand, using gut feel is not reliable and in milling as opposed to simple debris cleanout, rules of thumb about how fast the bottom hole assembly moves into sand when removing it from the wellbore are simply useless.
2 [00061 What is needed and provided by the present invention is a real time way to know if anything has gone wrong downhole in time to deal with the issue before the equipment is damaged. The tool of the present invention is able to sense flow changes through it and communicate that fact in real time to the surface. Those and other aspects of the present invention will become apparent to those skilled in the art from a review of the description of the preferred embodiment, the drawings and the claims which outline the full scope of the invention.
SUMMARY OF THE INVENTION
100071 A flow sensor is incorporated into a junk basket to sense a flow stoppage due to a plugged screen or plugged cuttings ports in a mill. The sensor triggers a signal to the surface to warn personnel that a problem exists before the equipment is damaged.
The sensor signal to the surface can take a variety of forms including mud pulses, a detectable pressure buildup at the surface, electromagnetic energy, electrical signal on hard wire or radio signals in a WiFi system to name a few options. Surface personnel can interrupt the signal to take corrective action that generally involves pulling out of the hole or reverse circulating to try to clear the screen or mill cuttings inlets.
Other variables can be measured such as the volume or weight or rate of change of either and a signal can be sent to the surface corresponding to one of those variables to allow them to be detected at the surface in near real time.
10007a1 Accordingly, in one aspect there is provided a milling debris catching tool for downhole use in a tubular string from the surface, comprising: a mill adapted to pass a predetermined fluid flow rate to remove cuttings from a milled object; a tool body having at least one inlet and outlet and a milling debris receptacle; a screen in a passage between said inlet and outlet to accept debris laden fluid and to prevent milling debris from passing through the tool so that it can be retained in said receptacle; and a sensor to detect how flow through said screen from said inlet to said outlet compares to the predetermined rate, said sensor operably connected to a valve member in said tool and selectively reconfiguring said passage for flow from said outlet to said inlet in an effort to unclog said screen if flow from said inlet to said outlet through said screen is below said predetermined rate.
SUMMARY OF THE INVENTION
100071 A flow sensor is incorporated into a junk basket to sense a flow stoppage due to a plugged screen or plugged cuttings ports in a mill. The sensor triggers a signal to the surface to warn personnel that a problem exists before the equipment is damaged.
The sensor signal to the surface can take a variety of forms including mud pulses, a detectable pressure buildup at the surface, electromagnetic energy, electrical signal on hard wire or radio signals in a WiFi system to name a few options. Surface personnel can interrupt the signal to take corrective action that generally involves pulling out of the hole or reverse circulating to try to clear the screen or mill cuttings inlets.
Other variables can be measured such as the volume or weight or rate of change of either and a signal can be sent to the surface corresponding to one of those variables to allow them to be detected at the surface in near real time.
10007a1 Accordingly, in one aspect there is provided a milling debris catching tool for downhole use in a tubular string from the surface, comprising: a mill adapted to pass a predetermined fluid flow rate to remove cuttings from a milled object; a tool body having at least one inlet and outlet and a milling debris receptacle; a screen in a passage between said inlet and outlet to accept debris laden fluid and to prevent milling debris from passing through the tool so that it can be retained in said receptacle; and a sensor to detect how flow through said screen from said inlet to said outlet compares to the predetermined rate, said sensor operably connected to a valve member in said tool and selectively reconfiguring said passage for flow from said outlet to said inlet in an effort to unclog said screen if flow from said inlet to said outlet through said screen is below said predetermined rate.
3 [0007b] According to another aspect there is provided a milling debris catching tool for downhole use in a tubular string from the surface in conjunction with a mill, comprising a mill adapted to operate with a predetermined fluid stream for debris removal; a body having at least one inlet and outlet and a debris receptacle adjacent said screen; a screen in a passage between said inlet and outlet to prevent debris from passing through the tool and to direct it to said receptacle; and a sensor to detect the weight or volume or rate of change of debris, captured in said receptacle before it impedes said predetermined fluid stream through said mill.
[0007c] According to yet another aspect there is provided a debris catching tool for downhole use in a tubular string from the surface, comprising: a body having at least one inlet and outlet; a screen in a passage between said inlet and outlet to prevent debris from passing through the tool; a sensor to detect the weight or volume or rate of change of debris, captured in said body; a signal transmitter to transmit a signal responsive to the weight, volume or rate of change of debris, measured by said sensor, said signal comprising changing said pressure in a portion of said body that is in fluid communication with said string in a predetermined pattern to create a mud pulse signal interpretable into a surface reading of weight or volume or rate of change of debris; a port in said body in fluid communication with the string and aligned with said outlet, said aligned port and outlet spanning a portion of said passage that leads from a clean side of said screen where debris has been screened out to said outlet; and a valve member on at least one of said port and said outlet, said valve member movable in response to said sensor.
DETAILED DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 is a section view of a prior art junk basket that uses an eductor to capture cuttings within;
[0009] Figure 2 shows how the junk basket of Figure 1 is modified to sense flow;
[0010] Figure 3 shows how the flow meter is operably connected to a movable sleeve shown in the Figure in its normal fully open position;
[0011] Figure 4 shows that a low flow condition causes the motor to move the sleeve to cover a port to give a pulse signal or a simple pressure spike signal to the surface;
3a [0012] Figure 5 shows a mud pulser assembly as the signaling to the surface of the flow through the tool measured in real time;
[0013] Figure 6 is an alternative to Figure 5 where a system of wireless communicators allows surface personnel to know the flow through the tool in real time;
[0014] Figure 7 shows an embedded electrical pathway as the way the flow is communicated to the surface in real time;
[0015] Figure 8 shows a combination of a pulser and an outlet valve to signal flow to the surface and to reverse flow the screen in an effort to resolve the problem;
[0016] Figure 9 is a view of the sleeve 54' shown in Figure 8.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0017] The junk basket 12 of Figure 1 is modified as shown in Figures 2-
[0007c] According to yet another aspect there is provided a debris catching tool for downhole use in a tubular string from the surface, comprising: a body having at least one inlet and outlet; a screen in a passage between said inlet and outlet to prevent debris from passing through the tool; a sensor to detect the weight or volume or rate of change of debris, captured in said body; a signal transmitter to transmit a signal responsive to the weight, volume or rate of change of debris, measured by said sensor, said signal comprising changing said pressure in a portion of said body that is in fluid communication with said string in a predetermined pattern to create a mud pulse signal interpretable into a surface reading of weight or volume or rate of change of debris; a port in said body in fluid communication with the string and aligned with said outlet, said aligned port and outlet spanning a portion of said passage that leads from a clean side of said screen where debris has been screened out to said outlet; and a valve member on at least one of said port and said outlet, said valve member movable in response to said sensor.
DETAILED DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 is a section view of a prior art junk basket that uses an eductor to capture cuttings within;
[0009] Figure 2 shows how the junk basket of Figure 1 is modified to sense flow;
[0010] Figure 3 shows how the flow meter is operably connected to a movable sleeve shown in the Figure in its normal fully open position;
[0011] Figure 4 shows that a low flow condition causes the motor to move the sleeve to cover a port to give a pulse signal or a simple pressure spike signal to the surface;
3a [0012] Figure 5 shows a mud pulser assembly as the signaling to the surface of the flow through the tool measured in real time;
[0013] Figure 6 is an alternative to Figure 5 where a system of wireless communicators allows surface personnel to know the flow through the tool in real time;
[0014] Figure 7 shows an embedded electrical pathway as the way the flow is communicated to the surface in real time;
[0015] Figure 8 shows a combination of a pulser and an outlet valve to signal flow to the surface and to reverse flow the screen in an effort to resolve the problem;
[0016] Figure 9 is a view of the sleeve 54' shown in Figure 8.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0017] The junk basket 12 of Figure 1 is modified as shown in Figures 2-
4. A
flow sensor 40 receives flow that has passed through the screen 34 leaving the cuttings outside the screen. After passing through the flow sensor that is designed to sense the flow while creating minimal additional pressure drop the flow goes through a crossover 42 and into annulus 44 within the tool 12. Located above the crossover 42 is a battery pack and motor generally referred to as 46. Figure 3 shows the entire flow regime. The fluid passes first through screen 34 with the cleaner fluid then passing through the flow sensor. Next the flow goes through the crossover and into annulus 44 inside the tool 12 while bypassing the battery pack and motor 46. Passage 10 is illustrated at the left side of Figure 3. The eductor 14 comprises aligned and preferably inclined openings 46 and 48.
Normally pressurized flow from the surface enters passage 10 and rushes out through aligned ports 48 and 50. That rushing flow reduces the pressure in annulus 44 and draws fluid through the screen 34. In the preferred embodiment, the battery pack and motor are connected to a gear drive 52 that can selectively drive a movable sleeve 54 over ports 48.
Modulating sleeve 54 with respect to ports 48 using motor 46 and gear drive 52 sends a pressure pulse signal to the surface to indicate flow in near real time. Note that another sleeve 54' can be constructed to block ports 50 as shown in Figures 3 and 8.
It can reciprocate as shown in Figure 3 or rotate, as shown in Figure 8 using a spline or hex drive 69, for example, shown in Figure 9. In that embodiment with pressure continuing from the surface at ports 48 any pressure buildup will first tend to reverse flow the screen 34 and the flow would go out the lower end 20. The motor 46 can include a downhole processor that upon sensing a low flow will not only signal that condition to the surface through movement of sleeve 54 but will also try closing sleeve 54' to create the aforementioned reverse flow through the screen 34 by closing valve 54'.
[00181 With sleeve 54' on ports 50, closing of the ports 50 responsive to a sensed low flow will result in a reverse flow measured at sensor 40. An electronic pulse generator mounted above eductor 14 can then be signaled by sensor 40, now measuring a reverse flow, to send pulses to the surface to be interpreted there as an indication of reverse flow. A reverse flow signal indicates to surface personnel that the screen 34 has been cleared in a reverse direction and therefore should be operated again in the normal direction by opening valve 54' using a surface signal or the processor associated with motor 46. The operator can pick up and cut the pump off to reset the system and then kick the pump back on and set down weight to see if a positive direction flow is established.
[0019] When a low flow is sensed at flow sensor 40 the motor 46 runs and the sleeve 54 is driven over the ports 48 as shown in Figure 4. These Figures show two types of signals to the surface to warn of a low flow condition within the tool 12.
Depending on the speed of the sleeve 54 and whether or not it is programmed to reverse direction, the surface signal can be a rapid pressure buildup or it can be pulses through the well fluids picked up by a surface sensor and converted into a flow reading. If the sleeve simply moves to cover the ports 48 and a positive displacement pump is used at the surface, it will simply build up pressure at the surface. Upon seeing that, surface personnel will turn the pump off with the hope that the cuttings on the screen 34 or in the ports in the mill will simply fall into the annular catch region 38 or further downhole, respectively. At the same time as cutting off the surface pump, the operator can lift the mill to stop the milling process. The string can be rotated with the mill lifted to help cuttings come off the mill or settle down into the catch region 38. After doing that the operator can resume pumping and look for feedback in the sensed flow transmitted to the surface as mud pulses and converted to flow readings by surface equipment. If flows resumes to normal levels after a system reset that pulls the sleeve 54 off of openings 48, the milling can resume. If normal flow rates are not detected at flow meter 40 and the ports 48 continue to be obstructed, the operator will again see higher pressures than normal at the pump on the surface. This will tell the operator to pull the string out of the hole to see what the problem may be. Ideally, the flow rate through the tool 12 for carrying the cuttings to the screen is preferred to be in the order of about 150 feet per minute and this can realized with a flow from the surface of about 4-8 barrels a minute. At that flow rate from the surface the total flow rate through ports 50 is about twice the pump rate from the surface.
[0020] Apart from a pressure surge that can be seen at the surface from sleeve movement covering ports 48, the sleeve 54 can be cycled over and then away from ports 48 to create a pattern of pressure pulses in the string going to the surface.
A sensor can be placed on the string near the surface and the pulses can be converted into a visual and/audible signal that there is a flow problem downhole using currently available mud pulse technology.
[0021] Referring to Figures 3 and 4, the gear drive 52 can be a ball screw or a thread whose rotation results in translation of the sleeve 54 since sleeve 54 is constrained from rotating by pin 56 in groove 58.
[0022] Signals of low flow can be communicated to the surface by wire in a variety of known techniques one of which is drill pipe telemetry 55 offered by IntelliServe a joint venture corporation of Grant Prideco and Novatek and shown schematically in Figure 7. Alternatively electromagnetic signals can be wirelessly sent to the surface to communicate the flow conditions downhole as shown schematically in item 57 in Figure 6. The flow sensing can be directly coupled to a signaling device. For example if the flow sensor is a prop mounted on a ball screw and acted on by a spring bias. The flow through the prop can push it against the spring bias and hold the ports 48 for the eductor 14 in the open position. If the flow slows or stops, the biasing member can back the prop assembly on the ball screw mount. The sleeve 54 can move in tandem with the prop on the ball screw mount so that a slowdown in flow closes openings 48 to give a surface signal as described above.
[0023] Figure 5 shows a pulser 59 in the form of a reciprocating valve member 61 that is operated to go on and off a seat 63 in response to a sensed flow as discussed before. In this embodiment a sliding sleeve such as 54 is not used because the pulser 59 is there. However, a sleeve 54' can still be used to create a reverse flow to attempt to clear the screen, as discussed above.
[0024] Other indicators of potential problems can be the volume of cuttings being accumulated in the catch annular space 38 or their weight or the rate of change of either variable. A sensor 60 to detect the cuttings level or rate of change per unit time can be mounted near the screen 34 or in the space 38 to sense the level and trigger the same signal mechanism to alert surface personnel to pull out of the hole.
Similarly, the annular space 38 can have a receptacle mounted on a weight sensor so that the accumulated weight or its rate of change can be detected. Signals can be sent if the weight increases to a predetermined amount or fails to change a predetermined amount over a predetermined time period. In either case the operator may know that the expected amount of debris has been collected or for some reason no debris is being collected. Signals such as mud pulses can differ depending on the condition sensed. The level or weight indication can be used alone or together with the flow sensing. If both are used one can back up the other because a high collected debris condition can also lead to flow reduction through the tool. In that sense, the reading of one can validate the other.
Alternatively the reading of one can be a backup to the other if there is a failure in one of the systems.
[0025] The above description is illustrative of the preferred embodiment and many modifications may be made by those skilled in the art without departing from the invention whose scope is to be determined from the literal and equivalent scope of the claims below:
flow sensor 40 receives flow that has passed through the screen 34 leaving the cuttings outside the screen. After passing through the flow sensor that is designed to sense the flow while creating minimal additional pressure drop the flow goes through a crossover 42 and into annulus 44 within the tool 12. Located above the crossover 42 is a battery pack and motor generally referred to as 46. Figure 3 shows the entire flow regime. The fluid passes first through screen 34 with the cleaner fluid then passing through the flow sensor. Next the flow goes through the crossover and into annulus 44 inside the tool 12 while bypassing the battery pack and motor 46. Passage 10 is illustrated at the left side of Figure 3. The eductor 14 comprises aligned and preferably inclined openings 46 and 48.
Normally pressurized flow from the surface enters passage 10 and rushes out through aligned ports 48 and 50. That rushing flow reduces the pressure in annulus 44 and draws fluid through the screen 34. In the preferred embodiment, the battery pack and motor are connected to a gear drive 52 that can selectively drive a movable sleeve 54 over ports 48.
Modulating sleeve 54 with respect to ports 48 using motor 46 and gear drive 52 sends a pressure pulse signal to the surface to indicate flow in near real time. Note that another sleeve 54' can be constructed to block ports 50 as shown in Figures 3 and 8.
It can reciprocate as shown in Figure 3 or rotate, as shown in Figure 8 using a spline or hex drive 69, for example, shown in Figure 9. In that embodiment with pressure continuing from the surface at ports 48 any pressure buildup will first tend to reverse flow the screen 34 and the flow would go out the lower end 20. The motor 46 can include a downhole processor that upon sensing a low flow will not only signal that condition to the surface through movement of sleeve 54 but will also try closing sleeve 54' to create the aforementioned reverse flow through the screen 34 by closing valve 54'.
[00181 With sleeve 54' on ports 50, closing of the ports 50 responsive to a sensed low flow will result in a reverse flow measured at sensor 40. An electronic pulse generator mounted above eductor 14 can then be signaled by sensor 40, now measuring a reverse flow, to send pulses to the surface to be interpreted there as an indication of reverse flow. A reverse flow signal indicates to surface personnel that the screen 34 has been cleared in a reverse direction and therefore should be operated again in the normal direction by opening valve 54' using a surface signal or the processor associated with motor 46. The operator can pick up and cut the pump off to reset the system and then kick the pump back on and set down weight to see if a positive direction flow is established.
[0019] When a low flow is sensed at flow sensor 40 the motor 46 runs and the sleeve 54 is driven over the ports 48 as shown in Figure 4. These Figures show two types of signals to the surface to warn of a low flow condition within the tool 12.
Depending on the speed of the sleeve 54 and whether or not it is programmed to reverse direction, the surface signal can be a rapid pressure buildup or it can be pulses through the well fluids picked up by a surface sensor and converted into a flow reading. If the sleeve simply moves to cover the ports 48 and a positive displacement pump is used at the surface, it will simply build up pressure at the surface. Upon seeing that, surface personnel will turn the pump off with the hope that the cuttings on the screen 34 or in the ports in the mill will simply fall into the annular catch region 38 or further downhole, respectively. At the same time as cutting off the surface pump, the operator can lift the mill to stop the milling process. The string can be rotated with the mill lifted to help cuttings come off the mill or settle down into the catch region 38. After doing that the operator can resume pumping and look for feedback in the sensed flow transmitted to the surface as mud pulses and converted to flow readings by surface equipment. If flows resumes to normal levels after a system reset that pulls the sleeve 54 off of openings 48, the milling can resume. If normal flow rates are not detected at flow meter 40 and the ports 48 continue to be obstructed, the operator will again see higher pressures than normal at the pump on the surface. This will tell the operator to pull the string out of the hole to see what the problem may be. Ideally, the flow rate through the tool 12 for carrying the cuttings to the screen is preferred to be in the order of about 150 feet per minute and this can realized with a flow from the surface of about 4-8 barrels a minute. At that flow rate from the surface the total flow rate through ports 50 is about twice the pump rate from the surface.
[0020] Apart from a pressure surge that can be seen at the surface from sleeve movement covering ports 48, the sleeve 54 can be cycled over and then away from ports 48 to create a pattern of pressure pulses in the string going to the surface.
A sensor can be placed on the string near the surface and the pulses can be converted into a visual and/audible signal that there is a flow problem downhole using currently available mud pulse technology.
[0021] Referring to Figures 3 and 4, the gear drive 52 can be a ball screw or a thread whose rotation results in translation of the sleeve 54 since sleeve 54 is constrained from rotating by pin 56 in groove 58.
[0022] Signals of low flow can be communicated to the surface by wire in a variety of known techniques one of which is drill pipe telemetry 55 offered by IntelliServe a joint venture corporation of Grant Prideco and Novatek and shown schematically in Figure 7. Alternatively electromagnetic signals can be wirelessly sent to the surface to communicate the flow conditions downhole as shown schematically in item 57 in Figure 6. The flow sensing can be directly coupled to a signaling device. For example if the flow sensor is a prop mounted on a ball screw and acted on by a spring bias. The flow through the prop can push it against the spring bias and hold the ports 48 for the eductor 14 in the open position. If the flow slows or stops, the biasing member can back the prop assembly on the ball screw mount. The sleeve 54 can move in tandem with the prop on the ball screw mount so that a slowdown in flow closes openings 48 to give a surface signal as described above.
[0023] Figure 5 shows a pulser 59 in the form of a reciprocating valve member 61 that is operated to go on and off a seat 63 in response to a sensed flow as discussed before. In this embodiment a sliding sleeve such as 54 is not used because the pulser 59 is there. However, a sleeve 54' can still be used to create a reverse flow to attempt to clear the screen, as discussed above.
[0024] Other indicators of potential problems can be the volume of cuttings being accumulated in the catch annular space 38 or their weight or the rate of change of either variable. A sensor 60 to detect the cuttings level or rate of change per unit time can be mounted near the screen 34 or in the space 38 to sense the level and trigger the same signal mechanism to alert surface personnel to pull out of the hole.
Similarly, the annular space 38 can have a receptacle mounted on a weight sensor so that the accumulated weight or its rate of change can be detected. Signals can be sent if the weight increases to a predetermined amount or fails to change a predetermined amount over a predetermined time period. In either case the operator may know that the expected amount of debris has been collected or for some reason no debris is being collected. Signals such as mud pulses can differ depending on the condition sensed. The level or weight indication can be used alone or together with the flow sensing. If both are used one can back up the other because a high collected debris condition can also lead to flow reduction through the tool. In that sense, the reading of one can validate the other.
Alternatively the reading of one can be a backup to the other if there is a failure in one of the systems.
[0025] The above description is illustrative of the preferred embodiment and many modifications may be made by those skilled in the art without departing from the invention whose scope is to be determined from the literal and equivalent scope of the claims below:
Claims (17)
1. A milling debris catching tool for downhole use in a tubular string from the surface, comprising:
a mill adapted to pass a predetermined fluid flow rate to remove cuttings from a milled object;
a tool body having at least one inlet and outlet and a milling debris receptacle;
a screen in a passage between said inlet and outlet to accept debris laden fluid and to prevent milling debris from passing through the tool so that it can be retained in said receptacle; and a sensor to detect how flow through said screen from said inlet to said outlet compares to the predetermined rate, said sensor operably connected to a valve member in said tool and selectively reconfiguring said passage for flow from said outlet to said inlet in an effort to unclog said screen if flow from said inlet to said outlet through said screen is below said predetermined rate.
a mill adapted to pass a predetermined fluid flow rate to remove cuttings from a milled object;
a tool body having at least one inlet and outlet and a milling debris receptacle;
a screen in a passage between said inlet and outlet to accept debris laden fluid and to prevent milling debris from passing through the tool so that it can be retained in said receptacle; and a sensor to detect how flow through said screen from said inlet to said outlet compares to the predetermined rate, said sensor operably connected to a valve member in said tool and selectively reconfiguring said passage for flow from said outlet to said inlet in an effort to unclog said screen if flow from said inlet to said outlet through said screen is below said predetermined rate.
2. The tool of claim 1, comprising:
a signal transmitter to transmit a signal responsive to the sensed flow from said sensor.
a signal transmitter to transmit a signal responsive to the sensed flow from said sensor.
3. The tool of claim 2, wherein:
said signal comprises changing the pressure in a portion of said body that is in fluid communication with the string which is interpretable as an indication of low flow through said body.
said signal comprises changing the pressure in a portion of said body that is in fluid communication with the string which is interpretable as an indication of low flow through said body.
4. The tool of claim 3, further comprising:
a port in said body in fluid communication with the string and aligned with said outlet, said aligned port and outlet spanning a portion of said passage that leads from a clean side of said screen where debris has been screened out to said outlet.
a port in said body in fluid communication with the string and aligned with said outlet, said aligned port and outlet spanning a portion of said passage that leads from a clean side of said screen where debris has been screened out to said outlet.
5. The tool of claim 4, wherein:
said valve member comprises a sleeve to selectively block said port, said sleeve driven by a motor responsive to said sensor.
said valve member comprises a sleeve to selectively block said port, said sleeve driven by a motor responsive to said sensor.
6. The tool of claim 4, wherein:
said valve member comprises a sleeve to selectively block said outlet aligned with said port while still allowing flow through it, whereupon flow in said spanned portion of said passage can reverse back to said screen.
said valve member comprises a sleeve to selectively block said outlet aligned with said port while still allowing flow through it, whereupon flow in said spanned portion of said passage can reverse back to said screen.
7. The tool of claim 6, wherein:
said sensor measures reverse flow when said sleeve selectively closes, said body further comprising a pulse generator responsive to a reverse flow measurement in said sensor to send a pulse signal related to the reverse flow rate measured.
said sensor measures reverse flow when said sleeve selectively closes, said body further comprising a pulse generator responsive to a reverse flow measurement in said sensor to send a pulse signal related to the reverse flow rate measured.
8. The tool of claim 5, wherein:
movement of said sleeve with respect to said port creates a pulse signal indicative of the measured flow rate by said sensor.
movement of said sleeve with respect to said port creates a pulse signal indicative of the measured flow rate by said sensor.
9. The tool of claim 5, wherein:
movement of said sleeve with respect to said port creates a pressure spike in said body as a surface signal that sensed flow is low.
movement of said sleeve with respect to said port creates a pressure spike in said body as a surface signal that sensed flow is low.
10. The tool of claim 2, wherein:
said signal comprises changing said pressure in a portion of said body that is in fluid communication with said string in a predetermined pattern to create a mud pulse signal interpretable into a surface flow reading.
said signal comprises changing said pressure in a portion of said body that is in fluid communication with said string in a predetermined pattern to create a mud pulse signal interpretable into a surface flow reading.
11. The tool of claim 2, wherein:
said signal comprises an electrical signal and further comprising a conduit for said signal extending from said body to the surface.
said signal comprises an electrical signal and further comprising a conduit for said signal extending from said body to the surface.
12. The tool of claim 2, wherein:
said signal is at least one of an electromagnetic signal and a radio wave.
said signal is at least one of an electromagnetic signal and a radio wave.
13. The tool of claim 2, further comprising:
a second sensor in said body to detect one of the volume and weight of the debris captured in said body; and said signal transmitter transmitting a signal from said body responsive to the volume or weight of debris retained in said body or the rate of change thereof
a second sensor in said body to detect one of the volume and weight of the debris captured in said body; and said signal transmitter transmitting a signal from said body responsive to the volume or weight of debris retained in said body or the rate of change thereof
14. The tool of claim 13, wherein:
said second sensor comprises one of a proximity sensor and a weight sensor.
said second sensor comprises one of a proximity sensor and a weight sensor.
15. A debris catching tool for downhole use in a tubular string from the surface, comprising:
a body having at least one inlet and outlet;
a screen in a passage between said inlet and outlet to prevent debris from passing through the tool;
a sensor to detect the weight or volume or rate of change of debris, captured in said body;
a signal transmitter to transmit a signal responsive to the weight, volume or rate of change of debris, measured by said sensor, said signal comprising changing said pressure in a portion of said body that is in fluid communication with said string in a predetermined pattern to create a mud pulse signal interpretable into a surface reading of weight or volume or rate of change of debris;
a port in said body in fluid communication with the string and aligned with said outlet, said aligned port and outlet spanning a portion of said passage that leads from a clean side of said screen where debris has been screened out to said outlet; and a valve member on at least one of said port and said outlet, said valve member movable in response to said sensor.
a body having at least one inlet and outlet;
a screen in a passage between said inlet and outlet to prevent debris from passing through the tool;
a sensor to detect the weight or volume or rate of change of debris, captured in said body;
a signal transmitter to transmit a signal responsive to the weight, volume or rate of change of debris, measured by said sensor, said signal comprising changing said pressure in a portion of said body that is in fluid communication with said string in a predetermined pattern to create a mud pulse signal interpretable into a surface reading of weight or volume or rate of change of debris;
a port in said body in fluid communication with the string and aligned with said outlet, said aligned port and outlet spanning a portion of said passage that leads from a clean side of said screen where debris has been screened out to said outlet; and a valve member on at least one of said port and said outlet, said valve member movable in response to said sensor.
16. The tool of claim 15, wherein:
said valve member comprises a sleeve to selectively block said port, said sleeve driven by a motor responsive to said sensor.
said valve member comprises a sleeve to selectively block said port, said sleeve driven by a motor responsive to said sensor.
17. The tool of claim 15, wherein:
said valve member comprises a sleeve to selectively block said outlet, said outlet, when closed, allowing reverse flow through said screen.
said valve member comprises a sleeve to selectively block said outlet, said outlet, when closed, allowing reverse flow through said screen.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/441,420 US7472745B2 (en) | 2006-05-25 | 2006-05-25 | Well cleanup tool with real time condition feedback to the surface |
US11/441,420 | 2006-05-25 | ||
PCT/US2007/069768 WO2007140313A2 (en) | 2006-05-25 | 2007-05-25 | Well cleanup tool with real time condition feedback to the surface |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2655646A1 CA2655646A1 (en) | 2007-12-06 |
CA2655646C true CA2655646C (en) | 2013-08-06 |
Family
ID=38626247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2655646A Active CA2655646C (en) | 2006-05-25 | 2007-05-25 | Well cleanup tool with real time condition feedback to the surface |
Country Status (6)
Country | Link |
---|---|
US (1) | US7472745B2 (en) |
AU (1) | AU2007267551C1 (en) |
CA (1) | CA2655646C (en) |
GB (2) | GB2473779B (en) |
NO (1) | NO340912B1 (en) |
WO (1) | WO2007140313A2 (en) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7789154B2 (en) * | 2007-08-03 | 2010-09-07 | Baker Hughes Incorporated | Eductor jet bushing for downhole use |
US20090145661A1 (en) * | 2007-12-07 | 2009-06-11 | Schlumberger Technology Corporation | Cuttings bed detection |
EP2286059A4 (en) * | 2008-03-27 | 2016-07-06 | Mi Llc | Downhole debris removal tool |
US20090279966A1 (en) * | 2008-05-12 | 2009-11-12 | Baker Hughes Incorporated | Reverse flow mill |
US20110303861A1 (en) | 2009-01-28 | 2011-12-15 | Borgwarner Inc. | Solenoid actuated hydraulic valve for use in an automatic transmission |
US8800660B2 (en) * | 2009-03-26 | 2014-08-12 | Smith International, Inc. | Debris catcher for collecting well debris |
US8056622B2 (en) * | 2009-04-14 | 2011-11-15 | Baker Hughes Incorporated | Slickline conveyed debris management system |
US8109331B2 (en) * | 2009-04-14 | 2012-02-07 | Baker Hughes Incorporated | Slickline conveyed debris management system |
US20100288492A1 (en) * | 2009-05-18 | 2010-11-18 | Blackman Michael J | Intelligent Debris Removal Tool |
US8257585B2 (en) * | 2009-08-25 | 2012-09-04 | Baker Hughes Incorporated | Debris catcher with retention within screen |
MY163716A (en) | 2010-01-20 | 2017-10-13 | Halliburton Energy Services Inc | Wellbore knock-out chamber and related methods of use |
GB201010192D0 (en) * | 2010-06-17 | 2010-07-21 | Servwell Engineering Ltd | Downhole mixing tool |
CN101949285B (en) * | 2010-08-26 | 2013-06-19 | 中国海洋石油总公司 | Screen pipe completed well gel-breaking tester |
US8584744B2 (en) | 2010-09-13 | 2013-11-19 | Baker Hughes Incorporated | Debris chamber with helical flow path for enhanced subterranean debris removal |
US20120152522A1 (en) * | 2010-12-17 | 2012-06-21 | Baker Hughes Incorporated | Debris Collection Device with Enhanced Circulation Feature |
US8727009B2 (en) * | 2010-12-22 | 2014-05-20 | Baker Hughes Incorporated | Surface signal for flow blockage for a subterranean debris collection apparatus |
US8225859B1 (en) * | 2011-03-04 | 2012-07-24 | Baker Hughes Incorporated | Debris cleanup tool with flow reconfiguration feature |
US8960282B2 (en) * | 2011-04-29 | 2015-02-24 | Baker Hughes Incorporated | Centrifugal subterranean debris collector |
US8695692B2 (en) | 2011-07-29 | 2014-04-15 | Baker Hughes Incorporated | Downhole condition alert system for a drill operator |
GB2496907B (en) * | 2011-11-28 | 2013-10-23 | Innova Drilling And Intervention Ltd | Improved wireline drilling system |
US8973662B2 (en) * | 2012-06-21 | 2015-03-10 | Baker Hughes Incorporated | Downhole debris removal tool capable of providing a hydraulic barrier and methods of using same |
US9163469B2 (en) | 2012-10-26 | 2015-10-20 | Baker Hughes Incorporated | One trip packer plug debris milling and removal method |
US9228414B2 (en) * | 2013-06-07 | 2016-01-05 | Baker Hughes Incorporated | Junk basket with self clean assembly and methods of using same |
US9416626B2 (en) * | 2013-06-21 | 2016-08-16 | Baker Hughes Incorporated | Downhole debris removal tool and methods of using same |
US9494018B2 (en) | 2013-09-16 | 2016-11-15 | Baker Hughes Incorporated | Sand control crossover tool with mud pulse telemetry position |
US9494005B2 (en) * | 2013-09-24 | 2016-11-15 | Baker Hughes Incorporated | Subterranean solids separator |
US20150247396A1 (en) * | 2014-02-28 | 2015-09-03 | Smith International, Inc. | Automated rate of penetration optimization while milling |
WO2016068885A1 (en) | 2014-10-28 | 2016-05-06 | Halliburton Energy Services, Inc. | Angled partial strainer plates for well assembly |
MX2017004439A (en) * | 2014-10-28 | 2017-06-26 | Halliburton Energy Services Inc | Longitudinally offset partial area screens for well assembly. |
WO2017007447A1 (en) | 2015-07-06 | 2017-01-12 | Halliburton Energy Services, Inc. | Modular downhole debris separating assemblies |
US10030485B2 (en) | 2015-10-15 | 2018-07-24 | Schlumberger Technology Corporation | Methods and apparatus for collecting debris and filtering fluid |
US10385663B2 (en) * | 2016-10-21 | 2019-08-20 | Weatherford Technology Holdings, Llc | Subsurface pump for use in well artificial lift operations having an interior flow passage of a plunger being in communication with a fluid chamber via a filter |
US10309209B2 (en) | 2017-03-17 | 2019-06-04 | Baker Hughes, A Ge Company, Llc | Electric submersible pump suction debris removal assembly |
US10400546B2 (en) * | 2017-04-11 | 2019-09-03 | Baker Hughes, A Ge Company, Llc | Flow reversing debris removal device with surface signal capability |
US10677005B2 (en) | 2017-11-20 | 2020-06-09 | Baker Hughes, A Ge Company, Llc | Reverse circulation debris removal tool with well control feature |
CN108661584B (en) * | 2018-04-18 | 2020-11-20 | 宝鸡石油机械有限责任公司 | Well repairing tool |
SG11202102602UA (en) | 2018-10-31 | 2021-04-29 | Halliburton Energy Services Inc | Integrated debris catcher and plug system |
US11555368B2 (en) * | 2021-05-28 | 2023-01-17 | Saudi Arabian Oil Company | Junk recovery tools and systems and methods of collecting junk |
Family Cites Families (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3123157A (en) * | 1964-03-03 | Recovery of drill cuttings from subsurface earth formations | ||
US3198256A (en) * | 1961-10-09 | 1965-08-03 | Bowen Tools Inc | Jet junk basket |
US3589020A (en) | 1968-08-12 | 1971-06-29 | Byron Jackson Inc | Air signalling drift apparatus with blow tube |
US4190113A (en) | 1978-07-27 | 1980-02-26 | Harrison Wayne O | Well cleanout tool |
US4276931A (en) | 1979-10-25 | 1981-07-07 | Tri-State Oil Tool Industries, Inc. | Junk basket |
US4515212A (en) | 1983-01-20 | 1985-05-07 | Marathon Oil Company | Internal casing wiper for an oil field well bore hole |
GB2170837B (en) | 1985-02-08 | 1988-05-11 | Richard Bernhard Anthon Sporik | Enhanced recovery junk-subs |
US4711299A (en) * | 1985-06-26 | 1987-12-08 | The Adaptable Tool Company | Apparatus and methods for pumping solids and undesirable liquids from a well bore |
US4857175A (en) | 1987-07-09 | 1989-08-15 | Teleco Oilfield Services Inc. | Centrifugal debris catcher |
US4928758A (en) * | 1989-10-10 | 1990-05-29 | Atlantic Richfield Company | Downhole wellbore flowmeter tool |
US5147149A (en) | 1991-05-16 | 1992-09-15 | Conoco Inc. | Tension leg dewatering apparatus and method |
US5402850A (en) * | 1994-01-13 | 1995-04-04 | Lalande; Phillip T. | Methods of using reverse circulating tool in a well borehole |
DK0857249T3 (en) * | 1995-10-23 | 2006-08-14 | Baker Hughes Inc | Drilling facility in closed loop |
GB2323871A (en) | 1997-03-14 | 1998-10-07 | Well-Flow Oil Tools Ltd | A cleaning device |
US5964296A (en) * | 1997-09-18 | 1999-10-12 | Halliburton Energy Services, Inc. | Formation fracturing and gravel packing tool |
NO306027B1 (en) * | 1997-10-27 | 1999-09-06 | Testtech Services As | Apparatus for removing sand in an underwater well |
WO1999022112A1 (en) * | 1997-10-27 | 1999-05-06 | Baker Hughes Incorporated | Downhole cutting separator |
US6189617B1 (en) | 1997-11-24 | 2001-02-20 | Baker Hughes Incorporated | High volume sand trap and method |
US6247542B1 (en) * | 1998-03-06 | 2001-06-19 | Baker Hughes Incorporated | Non-rotating sensor assembly for measurement-while-drilling applications |
AU1850199A (en) * | 1998-03-11 | 1999-09-23 | Baker Hughes Incorporated | Apparatus for removal of milling debris |
US20010037883A1 (en) * | 1998-11-18 | 2001-11-08 | Anthony F. Veneruso | Monitoring characteristics of a well fluid flow |
US6310559B1 (en) * | 1998-11-18 | 2001-10-30 | Schlumberger Technology Corp. | Monitoring performance of downhole equipment |
WO2000058602A1 (en) | 1999-03-30 | 2000-10-05 | French Oilfield Services Limited | Method and apparatus for cleaning boreholes |
US6343651B1 (en) * | 1999-10-18 | 2002-02-05 | Schlumberger Technology Corporation | Apparatus and method for controlling fluid flow with sand control |
US20020053428A1 (en) * | 1999-11-30 | 2002-05-09 | Walter Maples | Reverse circulation junk basket |
GB2360584B (en) * | 2000-03-25 | 2004-05-19 | Abb Offshore Systems Ltd | Monitoring fluid flow through a filter |
US6427776B1 (en) | 2000-03-27 | 2002-08-06 | Weatherford/Lamb, Inc. | Sand removal and device retrieval tool |
US6629564B1 (en) * | 2000-04-11 | 2003-10-07 | Schlumberger Technology Corporation | Downhole flow meter |
US6478091B1 (en) * | 2000-05-04 | 2002-11-12 | Halliburton Energy Services, Inc. | Expandable liner and associated methods of regulating fluid flow in a well |
US6604582B2 (en) * | 2000-06-05 | 2003-08-12 | Schlumberger Technology Corporation | Downhole fluid pressure signal generation and transmission |
US6684950B2 (en) * | 2001-03-01 | 2004-02-03 | Schlumberger Technology Corporation | System for pressure testing tubing |
US6607031B2 (en) * | 2001-05-03 | 2003-08-19 | Baker Hughes Incorporated | Screened boot basket/filter |
US6763892B2 (en) * | 2001-09-24 | 2004-07-20 | Frank Kaszuba | Sliding sleeve valve and method for assembly |
US6695052B2 (en) | 2002-01-08 | 2004-02-24 | Schlumberger Technology Corporation | Technique for sensing flow related parameters when using an electric submersible pumping system to produce a desired fluid |
GB0207563D0 (en) | 2002-04-02 | 2002-05-15 | Sps Afos Group Ltd | Junk removal tool |
US7282142B2 (en) * | 2002-04-22 | 2007-10-16 | Kraft Wayne J | Fluid strainer assembly |
US7000700B2 (en) * | 2002-07-30 | 2006-02-21 | Baker Hughes Incorporated | Measurement-while-drilling assembly using real-time toolface oriented measurements |
US7188674B2 (en) * | 2002-09-05 | 2007-03-13 | Weatherford/Lamb, Inc. | Downhole milling machine and method of use |
GB0228645D0 (en) * | 2002-12-09 | 2003-01-15 | Specialised Petroleum Serv Ltd | Downhole tool with actuable barrier |
CN101018926A (en) * | 2003-02-14 | 2007-08-15 | 贝克休斯公司 | Downhole measurements during non-drilling operations |
US7000698B2 (en) * | 2003-04-07 | 2006-02-21 | Weatherford/Lamb, Inc. | Methods and systems for optical endpoint detection of a sliding sleeve valve |
GB2405419B (en) * | 2003-09-01 | 2006-03-08 | Maxwell Downhole Technology Lt | Downhole tool & method |
US6932154B2 (en) * | 2003-09-16 | 2005-08-23 | Canada Tech Corporation | Pressure sensor insert for a downhole tool |
US7308941B2 (en) * | 2003-12-12 | 2007-12-18 | Schlumberger Technology Corporation | Apparatus and methods for measurement of solids in a wellbore |
US7296637B2 (en) * | 2004-04-06 | 2007-11-20 | Ed Gudac | Oil drilling tool |
US7367393B2 (en) * | 2004-06-01 | 2008-05-06 | Baker Hughes Incorporated | Pressure monitoring of control lines for tool position feedback |
CA2509928C (en) * | 2004-06-17 | 2009-01-27 | Schlumberger Canada Limited | Apparatus and method to detect actuation of a flow control device |
US7318471B2 (en) * | 2004-06-28 | 2008-01-15 | Halliburton Energy Services, Inc. | System and method for monitoring and removing blockage in a downhole oil and gas recovery operation |
US7478687B2 (en) * | 2004-07-19 | 2009-01-20 | Baker Hughes Incorporated | Coiled tubing conveyed milling |
-
2006
- 2006-05-25 US US11/441,420 patent/US7472745B2/en active Active
-
2007
- 2007-05-25 CA CA2655646A patent/CA2655646C/en active Active
- 2007-05-25 AU AU2007267551A patent/AU2007267551C1/en active Active
- 2007-05-25 WO PCT/US2007/069768 patent/WO2007140313A2/en active Application Filing
- 2007-05-25 GB GB201021934A patent/GB2473779B/en active Active
- 2007-05-25 GB GB0822945A patent/GB2453876B/en active Active
-
2008
- 2008-12-15 NO NO20085209A patent/NO340912B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
GB201021934D0 (en) | 2011-02-02 |
GB2473779B (en) | 2011-05-11 |
GB0822945D0 (en) | 2009-01-28 |
AU2007267551B8 (en) | 2011-10-06 |
NO340912B1 (en) | 2017-07-10 |
AU2007267551A1 (en) | 2007-12-06 |
WO2007140313A3 (en) | 2008-01-24 |
GB2453876A (en) | 2009-04-22 |
WO2007140313A2 (en) | 2007-12-06 |
CA2655646A1 (en) | 2007-12-06 |
GB2453876B (en) | 2011-03-02 |
NO20085209L (en) | 2009-01-29 |
GB2473779A (en) | 2011-03-23 |
AU2007267551B2 (en) | 2011-09-01 |
AU2007267551C1 (en) | 2012-05-31 |
US20070272404A1 (en) | 2007-11-29 |
US7472745B2 (en) | 2009-01-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2655646C (en) | Well cleanup tool with real time condition feedback to the surface | |
US20100288492A1 (en) | Intelligent Debris Removal Tool | |
CA2719792C (en) | Downhole debris removal tool | |
US9708872B2 (en) | Clean out sub | |
CN104011323B (en) | For removing the apparatus and method of chip from well | |
CA2761304C (en) | Packer retrieving mill with debris removal | |
US8727009B2 (en) | Surface signal for flow blockage for a subterranean debris collection apparatus | |
NO20160412A1 (en) | Combination debris collection and visual validation assembly | |
US9879505B2 (en) | One trip wellbore cleanup and setting a subterranean tool method | |
NO20101735L (en) | Downhole device for material collection | |
US9194196B2 (en) | Dual purpose mud-gas separator and methods | |
NO342201B1 (en) | Downhole tool for capturing debris and method of removing debris from a fluid flowing through a downhole tool | |
US10378297B2 (en) | Coiled tubing venturi junk basket tool and method of use | |
US20150101824A1 (en) | Actuation mechanism for water hammer valve | |
US6830107B2 (en) | Fluid flow switching device | |
GB2475477A (en) | Circulation bypass valve apparatus and method | |
US7234545B2 (en) | Self-blocking safety device | |
WO2015005998A1 (en) | Well fluid treatment apparatus | |
US10400546B2 (en) | Flow reversing debris removal device with surface signal capability | |
US7980330B1 (en) | Well tubular, retrievable joint strainer and method | |
CN114270225A (en) | Mud pulse valve | |
WO2019099990A1 (en) | Reverse circulation debris removal tool with well control feature | |
US20240084653A1 (en) | Drilling system with annular flush separation device and method | |
CA2854311A1 (en) | Clean out sub |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request |