CN106401924A - Hollow anti-gas oil extraction combination tool - Google Patents
Hollow anti-gas oil extraction combination tool Download PDFInfo
- Publication number
- CN106401924A CN106401924A CN201610603899.5A CN201610603899A CN106401924A CN 106401924 A CN106401924 A CN 106401924A CN 201610603899 A CN201610603899 A CN 201610603899A CN 106401924 A CN106401924 A CN 106401924A
- Authority
- CN
- China
- Prior art keywords
- gas bag
- gas
- piston cylinder
- wall
- assembly
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/02—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/06—Venting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/90—Alloys not otherwise provided for
Abstract
The invention relates to an anti-airlock oil extraction tool used during oil extraction in an oilfield, in particular to a hollow anti-gas oil extraction combination tool. The hollow anti-gas oil extraction combination tool comprises a coupling, a piston cylinder, a gasbag assembly, a plunger assembly and a check valve assembly. An oil pipe thread is arranged on the upper portion of the inner wall of the coupling. An internal thread is arranged on the lower portion of the inner wall of the coupling. An external thread is arranged on the outer wall of the end of the piston cylinder. The coupling is in threaded connection with the piston cylinder. A piston cylinder substrate is a whole seamless steel tube. An alloy layer is attached to the inner wall of the piston cylinder. An anticorrosion layer is electroplated to the outer wall of the piston cylinder. Gas-liquid channels are formed in the lower-middle portion of the piston cylinder. Blind holes are formed in the portion, on the upper portion of the gas-liquid channels, of the outer wall of the piston cylinder. The outer wall of the piston cylinder is sleeved with the gasbag assembly. The anti-airlock oil extraction tool is simple in structure and long in service life, an upper exhaust hole and a lower exhaust hole of a gasbag is sealed and opened through movement of a plunger up and down, gas in a pump is exhausted to an oil pipe on the pump, and the phenomenon of airlock of an oil well pump due to associated gas during oil extraction of a producing well or gas injected later is avoided.
Description
Technical field
The present invention relates to a kind of anti-gas lock oil tool during oil extraction in oil field is and in particular to a kind of hollow gas-tight oil recovery group
Conjunction instrument.
Background technology
During oil extraction in oil field, all it is accompanied by natural gas while stratum is fuel-displaced and discharges, gas is in plunger lower piston cylinder
Can build up, cause oil well pump that gas lock phenomenon occurs；Partly oily area can take the measure of carbon dioxide drive for oil production,
Gas content in fluid is caused to increase further, in oil recovery process, oil well pump is easier to cause gas lock phenomenon.
Content of the invention
It is an object of the invention to provide a kind of solve producing well when recovering the oil associated gas or the gas that injected later to taking out
The hollow gas-tight oil recovery tool kit of the gas lock phenomenon that oil pump causes.
The technical scheme is that：
Hollow gas-tight oil recovery tool kit, including box cupling, piston cylinder, gas bag assembly, assembly for plunger and single current valve assembly, in box cupling
Wall top is provided with tubing round thread, and box cupling inner wall lower is provided with female thread, and piston cylinder end outer wall is provided with external screw thread, box cupling and piston
Cylinder is threaded, and piston cylinder matrix is integral seamless steel pipe, and the piston inside wall of cylinder has alloy-layer, piston cylinder outer wall electroplating anticorrosion
Layer, piston cylinder middle and lower part has gas-liquid channel, and piston cylinder outer wall has blind hole on gas-liquid channel top；Gas bag assembly is enclosed within piston
On cylinder outer wall, gas bag assembly includes that gas bag pipe is gentle to assure fixing device, and gas bag pipe two ends connect gas bag fixing device, gas respectively
Assure fixing device to include gas bag cap, gas bag joint, lengthen steel loop, steel ring, Z-type copper ring, gas bag cap inner circle one end unthreaded hole is simultaneously
It is enclosed within piston cylinder, the gas bag cap other end is connected with gas bag joint screw thread, the cylindrical two ends of gas bag joint are provided with external screw thread, and gas bag connects
First end connects gas bag cap, and the gas bag joint other end connects gas bag pipe, gas bag joint inner circle two ends bore hole, by middle rib every
Open, the endoporus near gas bag cap one end is sequentially arranged with lengthening steel loop, Z-type copper ring, steel loop and retainer ring, uniform on fixing ring wall
There is through hole, pin passes through the blind hole on through hole and piston cylinder to fix；It is provided with assembly for plunger, piston cylinder lower end is passed through to connect in piston cylinder
Hoop connects single current valve assembly.
Specifically, externally threaded one end that gas bag joint is connected with gas bag pipe is provided with escape, and this escape passes through chamfering
Transition is connected with the first cambered surface and the second cambered surface successively, and described second cambered surface passes through chamfered transition and negative angle moment of torsion first half the circumference of the sleeve where it joins the shoulder
Connect；Gas bag pipe female thread one end is provided with the conical surface corresponding successively with the first cambered surface on gas bag joint and the second cambered surface and circle
Cylinder and negative angle moment of torsion second half the circumference of the sleeve where it joins the shoulder corresponding with negative angle moment of torsion first half the circumference of the sleeve where it joins the shoulder, described gas bag joint is gentle to assure screw thread
After cooperation, by the first cambered surface to the primary seal structure of the conical surface, the second cambered surface to the secondary seal structure on the face of cylinder and negative angle
The three-level metal to metal interference of negative angle moment of torsion half the circumference of the sleeve where it joins the shoulder sealing structure that degree moment of torsion first half the circumference of the sleeve where it joins the shoulder and the second half the circumference of the sleeve where it joins the shoulder match is close
Envelope.
Specifically, the gentle female thread of assuring of gas bag joint external screw thread is buttress thread.
Specifically, Z-type copper ring and steel loop are alternately mounted between piston cylinder and gas bag joint, rely on gas bag cap and gas bag
Pretightning force between joint screw thread, makes red copper Z-type copper ring deform, forms labyrinth seal, reach sealing effectiveness.
Specifically, the piston inside wall of cylinder has zinc-aluminum-magnesium-rare earth multi-element alloy-layer, and piston cylinder outer wall electroplates 0.3mm-0.5mm
Thick nano anti-corrosive layer.
Present configuration is simple, and long service life is directly connected on flow string, drives sucker rod by the oil pumper on ground
Post plunger of ining succession carries out upper and lower stroke oil recovery, by sealing and the unlatching of the steam vent up and down to gas bag for the upper and lower stroke of plunger,
Gas in pump drains into oil pipe on pump, reaches and prevents producing well associated gas or the gas injecting later when recovering the oil from oil well pump is made
Become gas lock phenomenon.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is gas bag pipe and the connection diagram of gas bag joint.
1 box cupling, 2 piston cylinder, 3 upper traveling valve cage 4 travelling valve pair 5 gas bag cap 6 lengthens steel loop
Under 7 Z-type copper ring, 8 steel loop, 9 pin, 10 retainer ring, 11 gas bag joint, 12 gas bag pipe 13 plunger body 14
On travelling valve bonnet 15 lower travelling valve shield joint, 16 single current valve bonnet 17 ball-and-seat pair 18 single current valve unions 19, gas-liquid is led to
Road 20 times gas-liquid channel 21 escape, 22 first cambered surface 23 second cambered surface 24 negative angle moment of torsion the first half the circumference of the sleeve where it joins the shoulder 25
The conical surface 26 face of cylinder 27 negative angle moment of torsion the second half the circumference of the sleeve where it joins the shoulder 28 external screw thread 29 female thread.
Specific embodiment
Hollow gas-tight oil recovery tool kit, including box cupling 1, piston cylinder 2, gas bag assembly, assembly for plunger and single current valve assembly,
Box cupling 1 upper inside wall is provided with tubing round thread, and box cupling 1 inner wall lower is provided with female thread 29, and piston cylinder 2 end outer wall is provided with external screw thread
28, box cupling 1 is threadeded with piston cylinder 2.
Piston cylinder 2 matrix is integral seamless steel pipe, and piston cylinder 2 inwall has zinc-aluminum-magnesium-rare earth multi-element alloy-layer, piston
Cylinder 2 outer wall electroplates the thick nano anti-corrosive layer of 0.3mm-0.5mm, improves the service life of piston cylinder 2, piston cylinder 2 middle and lower part has
Upper gas-liquid channel 19 and lower gas-liquid channel 20, the angle between the gas-liquid channel of sustained height is 90 degree, and piston cylinder 2 outer wall is in gas
Liquid channel upper has blind hole.
Gas bag assembly is enclosed within piston cylinder 2 outer wall, and gas bag assembly includes that gas bag pipe 12 is gentle to assure 12 fixing devices, gas bag
Pipe 12 two ends connect gas bag fixing device respectively, and gas bag pipe 12 fixing device includes gas bag cap 5, gas bag joint 11, lengthens steel loop
6th, steel ring, Z-type copper ring 7, gas bag cap 5 inner circle one end unthreaded hole is simultaneously enclosed within piston cylinder 2, gas bag cap 5 other end and gas bag joint
11 is threaded, and the cylindrical two ends of gas bag joint 11 are provided with external screw thread 28, and gas bag joint 11 external screw thread 28 is gentle to assure 12 female threads
29 is buttress thread, and gas bag joint 11 one end connects gas bag cap 5, and gas bag joint 11 other end connects gas bag pipe 12, and gas bag connects
11 inner circle two ends bore holes, are separated by middle rib, and it is purple that the endoporus near gas bag cap 5 one end is sequentially arranged with lengthening steel loop 6, Z-type
Copper band 7, steel loop 8 and retainer ring 10, wherein Z-type copper ring 7 and steel loop 8 are alternately mounted between piston cylinder 2 and gas bag joint 11,
Rely on the pretightning force between gas bag cap 5 and gas bag joint 11 screw thread, so that red copper Z-type copper ring 7 is deformed, form labyrinth seal, reach
To sealing effectiveness, retainer ring 10 wall is evenly equipped with through hole, pin 9 passes through the blind hole on through hole and piston cylinder 2 to fix.
The one end of the external screw thread 28 that gas bag joint 11 is connected with gas bag pipe 12 is provided with escape 21, and this escape 21 passes through to fall
Angle transition is connected with the first cambered surface 22 and the second cambered surface 23 successively, and described second cambered surface 23 passes through chamfered transition and negative angle moment of torsion
First half the circumference of the sleeve where it joins the shoulder 24 connects；Gas bag pipe 12 female thread 29 one end is provided with and the first cambered surface 22 on gas bag joint 11 and the second cambered surface 23
The conical surface 25 corresponding successively and the face of cylinder 26 and the negative angle moment of torsion second corresponding with negative angle moment of torsion the first half the circumference of the sleeve where it joins the shoulder 24 are lifted
Shoulder 27, described gas bag joint 11 is gentle assure 12 screw threads cooperations after, by the first cambered surface 22 to the primary seal structure of the conical surface 25,
It is negative that second cambered surface 23 matches to the secondary seal structure on the face of cylinder 26 and negative angle moment of torsion the first half the circumference of the sleeve where it joins the shoulder 24 and the second half the circumference of the sleeve where it joins the shoulder
The three-level metal to metal interference seal of angle moment of torsion half the circumference of the sleeve where it joins the shoulder sealing structure, improves the sealing property of gas bag pipe 12.
It is provided with assembly for plunger, assembly for plunger includes upper traveling valve cage 3, travelling valve pair 4, plunger body 13, downstream in piston cylinder 2
Dynamic valve bonnet 14 and lower travelling valve shield joint 15, piston cylinder 2 lower end connects single current valve assembly by box cupling 1, and single current valve assembly includes
Single current valve bonnet 16, ball-and-seat secondary 17 and single current valve union 18.
During work, assembly for plunger is up under the pulling force effect of oil pumper and rod string, and assembly for plunger and piston cylinder 2 are joined
It is combined in plunger piston cylinder 2 once and forms negative pressure cavity, the outer mixing liquid of tubing string backs down ball-and-seat pair 17 under pressure,
Enter in piston cylinder 2, the little assembly for plunger that follows closely of specific gravity of gas is up, and lower travelling valve joint 15 goes upward to gas bag assembly position, because
Factor gas for pressure reduction can enter into gas bag pipe 12 by lower gas-liquid channel 20 and stores, when rod string is descending, post
After the upper traveling valve cage 3 of plug assembly entered upper gas-liquid channel 19, gas meeting and on liquid displacement not remove in gas bag pipe 12,
Top oil pipe is entered by piston cylinder 2, so reach prevent producing well when recovering the oil associated gas or the gas that injected later to taking out
Oil pump causes the purpose of gas lock phenomenon.
Finally it should be noted that:Above example is only not intended to limit in order to technical scheme to be described；To the greatest extent
Pipe has been described in detail to the present invention with reference to preferred embodiment, and those of ordinary skill in the art should be understood：Still
The specific embodiment of the present invention can be modified or equivalent is carried out to some technical characteristics；Without deviating from this
The spirit of bright technical scheme, it all should be covered in the middle of the technical scheme scope that the present invention is claimed.
Claims (5)
1. hollow gas-tight oil recovery tool kit, including box cupling, piston cylinder, gas bag assembly, assembly for plunger and single current valve assembly, it is special
Levy and be, box cupling upper inside wall is provided with tubing round thread, box cupling inner wall lower is provided with female thread, piston cylinder end outer wall is provided with outer spiral shell
Stricture of vagina, box cupling is threadeded with piston cylinder, and piston cylinder matrix is integral seamless steel pipe, and the piston inside wall of cylinder has alloy-layer, piston cylinder
Outer wall electroplating anticorrosion layer, piston cylinder middle and lower part has gas-liquid channel, and piston cylinder outer wall has blind hole on gas-liquid channel top；Gas bag
Assembly is enclosed within piston cylinder outer wall, and gas bag assembly includes that gas bag pipe is gentle to assure fixing device, and gas bag pipe two ends connect gas respectively
Bag fixing device, gas bag pipe fixing device includes gas bag cap, gas bag joint, lengthens steel loop, steel ring, Z-type copper ring, in gas bag cap
Circle one end unthreaded hole is simultaneously enclosed within piston cylinder, and the gas bag cap other end is connected with gas bag joint screw thread, and the cylindrical two ends of gas bag joint are provided with
External screw thread, gas bag joint one end connection gas bag cap, gas bag joint other end connection gas bag pipe, gas bag joint inner circle two ends bore hole,
Separated by middle rib, the endoporus near gas bag cap one end is sequentially arranged with lengthening steel loop, Z-type copper ring, steel loop and retainer ring, Gu
Determine to be evenly equipped with through hole on ring wall, pin passes through the blind hole on through hole and piston cylinder to fix；It is provided with assembly for plunger, piston in piston cylinder
Cylinder lower end connects single current valve assembly by box cupling.
2. according to claim 1 hollow gas-tight oil recovery tool kit it is characterised in that what gas bag joint was connected with gas bag pipe
Externally threaded one end is provided with escape, and this escape is connected with the first cambered surface and the second cambered surface successively by chamfered transition, described
Second cambered surface is connected with negative angle moment of torsion first half the circumference of the sleeve where it joins the shoulder by chamfered transition；Gas bag pipe female thread one end be provided with gas bag joint on
The first cambered surface and the corresponding successively conical surface of the second cambered surface and the face of cylinder and corresponding with negative angle moment of torsion first half the circumference of the sleeve where it joins the shoulder negative
Angle moment of torsion second half the circumference of the sleeve where it joins the shoulder, described gas bag joint is gentle assure screw thread cooperation after, by the primary seal to the conical surface for first cambered surface
The negative angle that structure, the second cambered surface match to the secondary seal structure on the face of cylinder and negative angle moment of torsion first half the circumference of the sleeve where it joins the shoulder and the second half the circumference of the sleeve where it joins the shoulder
The three-level metal to metal interference seal of degree moment of torsion half the circumference of the sleeve where it joins the shoulder sealing structure.
3. according to claim 2 hollow gas-tight oil recovery tool kit it is characterised in that gas bag joint external screw thread is gentle assures
Female thread is buttress thread.
4. according to claim 1 hollow gas-tight oil recovery tool kit it is characterised in that Z-type copper ring and steel loop replace pacifies
It is contained between piston cylinder and gas bag joint, rely on the pretightning force between gas bag cap and gas bag joint screw thread, make red copper Z-type copper ring
Deformation, forms labyrinth seal, reaches sealing effectiveness.
5. according to claim 1 hollow gas-tight oil recovery tool kit it is characterised in that the piston inside wall of cylinder has zinc-aluminum-magnesium
Rare earth multicomponent alloy-layer, piston cylinder outer wall electroplates the thick nano anti-corrosive layer of 0.3mm-0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610603899.5A CN106401924B (en) | 2016-07-28 | 2016-07-28 | Hollow gas-tight oil recovery combination tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610603899.5A CN106401924B (en) | 2016-07-28 | 2016-07-28 | Hollow gas-tight oil recovery combination tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106401924A true CN106401924A (en) | 2017-02-15 |
| CN106401924B CN106401924B (en) | 2019-04-05 |
Family
ID=58004274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610603899.5A Active CN106401924B (en) | 2016-07-28 | 2016-07-28 | Hollow gas-tight oil recovery combination tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106401924B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1208307A1 (en) * | 1984-08-08 | 1986-01-30 | Goloshchapov Yurij S | Well hose pump |
| US4936383A (en) * | 1988-04-22 | 1990-06-26 | Ico-Texaust Joint Venture, Inc. | Downhole pump pulsation dampener |
| CN2658424Y (en) * | 2003-07-28 | 2004-11-24 | 王福生 | Combination seal type oil-well pump plunger |
| CN201502517U (en) * | 2009-10-13 | 2010-06-09 | 杜灿煜 | Zero-airlock gas-liquid multiphase deep-well pump |
| CN103628827A (en) * | 2012-08-20 | 2014-03-12 | 东港市东方高新金属材料有限公司 | Anti-bonding three-stage end surface metal sealing threaded connector for titanium alloy pipe |
| CN203948282U (en) * | 2013-10-29 | 2014-11-19 | 中国石油天然气股份有限公司 | A kind of gas-liquid displaced type gas prevention pump |
| CN104819139A (en) * | 2015-04-10 | 2015-08-05 | 中国石油天然气股份有限公司 | Oil-well pump with double load reduction and gas locking prevention functions |
| CN205858631U (en) * | 2016-07-28 | 2017-01-04 | 濮阳市科锐机械工程技术有限公司 | Hollow gas-tight oil recovery tool kit |
-
2016
- 2016-07-28 CN CN201610603899.5A patent/CN106401924B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1208307A1 (en) * | 1984-08-08 | 1986-01-30 | Goloshchapov Yurij S | Well hose pump |
| US4936383A (en) * | 1988-04-22 | 1990-06-26 | Ico-Texaust Joint Venture, Inc. | Downhole pump pulsation dampener |
| CN2658424Y (en) * | 2003-07-28 | 2004-11-24 | 王福生 | Combination seal type oil-well pump plunger |
| CN201502517U (en) * | 2009-10-13 | 2010-06-09 | 杜灿煜 | Zero-airlock gas-liquid multiphase deep-well pump |
| CN103628827A (en) * | 2012-08-20 | 2014-03-12 | 东港市东方高新金属材料有限公司 | Anti-bonding three-stage end surface metal sealing threaded connector for titanium alloy pipe |
| CN203948282U (en) * | 2013-10-29 | 2014-11-19 | 中国石油天然气股份有限公司 | A kind of gas-liquid displaced type gas prevention pump |
| CN104819139A (en) * | 2015-04-10 | 2015-08-05 | 中国石油天然气股份有限公司 | Oil-well pump with double load reduction and gas locking prevention functions |
| CN205858631U (en) * | 2016-07-28 | 2017-01-04 | 濮阳市科锐机械工程技术有限公司 | Hollow gas-tight oil recovery tool kit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106401924B (en) | 2019-04-05 |
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