USRE46137E1 - Pressure actuated ported sub for subterranean cement completions - Google Patents
Pressure actuated ported sub for subterranean cement completions Download PDFInfo
- Publication number
- USRE46137E1 USRE46137E1 US14/881,804 US201514881804A USRE46137E US RE46137 E1 USRE46137 E1 US RE46137E1 US 201514881804 A US201514881804 A US 201514881804A US RE46137 E USRE46137 E US RE46137E
- Authority
- US
- United States
- Prior art keywords
- sleeve
- pressure
- valve
- piston
- passage
- 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.)
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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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
- E21B33/14—Methods or devices for cementing, for plugging holes, crevices, or the like for cementing casings into boreholes
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- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/063—Valve or closure with destructible element, e.g. frangible disc
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
-
- E21B2034/007—
-
- 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
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/06—Sleeve valves
Definitions
- the field of the invention is a pressure actuated sleeve used in a cementing assembly that is responsive to tubing pressure to open a port and more particularly a sleeve that is associated with a piston where the piston is not referenced to annulus pressure when actuated by selective communication of tubing pressure to one side with the opposed side referenced to a low pressure chamber within the housing.
- Prior sleeves that have been deployed in cementing service have been based on the concept of providing opposed piston areas exposed to tubing pressure that are of different dimensions so that raising the tubing pressure will create a sufficient net force to in theory overcome seal friction and move the sleeve to the open position.
- One such design is Halliburton Initiator Sliding Sleeve that has a larger upper seal diameter than a lower seal. Raising tubing pressure creates a net differential force and the piston is allowed to move because there is an atmospheric chamber between the upper and lower seals.
- the problem is that to get the lower seal to be smaller than the upper seal to create the desired net force in the needed direction, the wall of the sleeve adjacent the lower seal and the atmospheric chamber has to be reduced so that the sleeve can shift while the volume of the atmospheric chamber is reduced.
- the wall of the sleeve in the area of the atmospheric chamber sees substantial differential pressure and can flex or bend. When that happens the sleeve gets stuck and the desired port opening in the housing fails to occur.
- What is needed and provided by the present invention is an actuation technique for a sliding sleeve to open a port that responds to tubing pressure but addresses the flexing or bending problem associated with prior designs so that reliable movement of the sleeve is obtained.
- the application of pressure to a predetermined level actually holds the sleeve closed because the piston area on the sleeve bottom at 31 is greater than the piston area at the top of the sleeve at 32 . Doing this allows the sleeve wall near the atmospheric or low pressure chamber to be strong enough to resist bending or buckling under a predetermined differential pressure.
- the pressure is built up access is provided to a piston on the sleeve that is referenced to a low pressure or atmospheric chamber.
- a tubing pressure operated sliding sleeve is used in cementing a tubular string.
- the sleeve is configured to hold closed as pressure builds to a predetermined value.
- a rupture disc blows and provides access to an integral piston disposed outside the sleeve.
- the back side of the piston is exposed to a low pressure or atmospheric chamber located between upper and lower seals.
- the sleeve thickness near the chamber can be made relatively thick to avoid flexing or bending under differential pressure because the net force to shift the sleeve is from differential pressure on the piston rather than the piston areas created by the upper and lower seals.
- FIG. 1 is a section view of the sleeve in the ports closed position
- FIG. 2 is the view of FIG. 1 with the sleeve in the ports open position
- FIG. 3 is an enlarged view of the rupture disc assembly shown in FIG. 2 .
- the apparatus has the following components:
- burst disk or chemically responsive barrier 15
- the valve is run in open-hole cementable completions just above the float equipment.
- the valve is connected to the casing; through the upper body tubular connection ( 1 ) at the top and the lower body tubular connection ( 29 ) at the bottom.
- the structural valve body is made-up of an upper ported housing ( 2 ) and lower body ( 28 ). Pressure integrity of the valve is maintained with the body seals ( 22 ).
- the body set screws ( 24 ) keep the body connection threads ( 23 ) from backing out during installation.
- Between the upper ported housing ( 2 ) and the lower body ( 28 ) is captured an inner shifting sleeve ( 3 ).
- the inner shifting sleeve ( 3 ) has several diameters that create piston areas that generate shifting forces to open the valve.
- the larger intermediate internal bore piston seals ( 16 ) are used to drive down the inner shifting sleeve ( 3 ) along the lower internal polished bore ( 18 ) within the upper ported housing ( 2 ), once the burst disk ( 15 ) is ruptured. Both sets of seals operate within their respective polished bores ( 5 , 10 ) within the upper ported housing ( 2 ).
- the inner shifting sleeve ( 3 ) also has a shoulder ( 7 ) that shears the shear screws ( 8 ) during the opening shift of the inner sleeve ( 3 ).
- An external sleeve lock ring retention groove ( 17 ) is located between the internal bore piston seals ( 16 ) and the lower sleeve polished bore ( 25 ) diameter.
- This recess will accept the sleeve lock ring ( 21 ) that is retained by the lock ring retainer ( 20 ) once the valve had fully opened.
- the sleeve lock ring ( 21 ) will prevent the inner shifting sleeve ( 3 ) from closing once the valve has fully opened.
- the upper atmospheric chamber ( 12 ) which contains air that can be independently tested through the upper pressure test port ( 11 ).
- a lower atmospheric chamber ( 19 ) which also contains air that can be independently tested through a lower pressure testing port ( 26 ).
- a burst disk ( 15 ) is held into place within a port located on the outside of the inner shifting sleeve ( 3 ) by a load ring ( 14 ) and a load nut ( 13 ).
- the burst disk load nut ( 13 ) is sized to allow significant torque and load to be transferred into the burst disk ( 15 ) prior to installation of the inner shifting sleeve ( 3 ) within the valve.
- the valve is run on casing and cemented into place within the well. After cementation the valve is scraped with wiper dart prior to actuation. Once the cement has set on the outside of the valve, it is ready to be opened with a combination of high hydrostatic and applied pressure. Once the burst pressure is reached, the burst disk ( 15 ) opens the upper atmospheric chamber ( 12 ) to the applied pressure. This pressure acts on the piston area created by the upper internal bore piston seals ( 9 ) and the larger intermediate internal bore piston seals ( 16 ) and drives the inner shifting sleeve ( 3 ) down compressing the air within the lower atmospheric chamber ( 19 ) and opening the fluid communication ports ( 6 ) on the upper ported housing ( 2 ).
- a pressure regulation valve can also be used for such selective access as well as a chemically responsive barrier that goes away in the presence of a predetermined substance or energy field, temperature downhole or other well condition for example, schematically illustrated by arrow 30 , to move the sleeve.
- Chamber ( 12 ) once the rupture disc burst is under tubing pressure so wall flexure at that location is minimized. Even before the rupture disc breaks the size of chamber ( 12 ) is sufficiently small to avoid sleeve wall flexing in that region.
- the use of a large boss to support the seal ( 16 ) also strengthens the sleeve ( 3 ) immediately above the chamber ( 19 ), thus at least reducing flexing or bending that could put sleeve ( 3 ) in a bind before it fully shifted.
- the slightly larger dimension of seal ( 27 ) than seal ( 4 ) that holds the sleeve ( 3 ) closed initially also allows a greater wall thickness for sleeve ( 3 ) near the chamber ( 19 ) to further at least reducing flexing or bending to allow the sleeve ( 3 ) to fully shift without getting into a bind.
- the piston ( 16 ) can be integral to the sleeve ( 3 ) or a separate structure.
- Chamber ( 19 ) has an initial pressure of atmospheric or a predetermined value less than the anticipated hydrostatic pressure within sleeve ( 3 ).
- the volume of chamber ( 19 ) decreases and its internal pressure rises as sleeve ( 3 ) moves to open port ( 6 ).
Abstract
Description
Claims (44)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/881,804 USRE46137E1 (en) | 2011-07-29 | 2015-10-13 | Pressure actuated ported sub for subterranean cement completions |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/193,902 US8555960B2 (en) | 2011-07-29 | 2011-07-29 | Pressure actuated ported sub for subterranean cement completions |
US14/881,804 USRE46137E1 (en) | 2011-07-29 | 2015-10-13 | Pressure actuated ported sub for subterranean cement completions |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/193,902 Reissue US8555960B2 (en) | 2011-07-29 | 2011-07-29 | Pressure actuated ported sub for subterranean cement completions |
Publications (1)
Publication Number | Publication Date |
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USRE46137E1 true USRE46137E1 (en) | 2016-09-06 |
Family
ID=47596286
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/193,902 Ceased US8555960B2 (en) | 2011-07-29 | 2011-07-29 | Pressure actuated ported sub for subterranean cement completions |
US14/881,804 Active 2032-01-11 USRE46137E1 (en) | 2011-07-29 | 2015-10-13 | Pressure actuated ported sub for subterranean cement completions |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/193,902 Ceased US8555960B2 (en) | 2011-07-29 | 2011-07-29 | Pressure actuated ported sub for subterranean cement completions |
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US (2) | US8555960B2 (en) |
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US20150082891A1 (en) * | 2013-09-24 | 2015-03-26 | Baker Hughes Incorporated | System and method for measuring the vibration of a structure |
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2011
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US9752412B2 (en) * | 2015-04-08 | 2017-09-05 | Superior Energy Services, Llc | Multi-pressure toe valve |
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