WO2010096361A1 - Fail as is mechanism and method - Google Patents
Fail as is mechanism and method Download PDFInfo
- Publication number
- WO2010096361A1 WO2010096361A1 PCT/US2010/024234 US2010024234W WO2010096361A1 WO 2010096361 A1 WO2010096361 A1 WO 2010096361A1 US 2010024234 W US2010024234 W US 2010024234W WO 2010096361 A1 WO2010096361 A1 WO 2010096361A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mandrel
- piston
- slots
- recited
- actuation
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000001351 cycling effect Effects 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/004—Indexing systems for guiding relative movement between telescoping parts of downhole tools
- E21B23/006—"J-slot" systems, i.e. lug and slot indexing mechanisms
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B2200/04—Ball valves
Definitions
- Inline barrier valves are used in downhole well applications. Accidental and inadvertent closing or opening of these valves can cause catastrophic failures.
- inline lubricator valves are used to balance pressure while running an intervention tool downhole. If a failure occurs that results in an inadvertent opening or closing of the valve, substantial risk arises with respect to damage to equipment and/or injury to personnel.
- a well system may comprise a tool having an adjustable member.
- An actuation mechanism serves as a fail-as-is mechanism and works in cooperation with the adjustable member.
- the actuation member is shiftable upon receiving a predetermined input; however the actuation member does not move the adjustable member upon each shift. Once the actuation member has been shifted the requisite number of times to move the adjustable member to another position, at least one subsequent shift of the actuation member is not able to cause movement of the adjustable member.
- This provides a fail-as-is technique for ensuring the tool, e.g. valve, is not inadvertently actuated to another operational position.
- FIG. 1 is a schematic illustration of a well with a well system incorporating an actuation/fail-as-is mechanism, according to an embodiment of the present disclosure
- FIG. 2 is a cross-sectional view of one example of a fail-as-is mechanism coupled with a well tool, according to an embodiment of the present disclosure
- FIG. 3 is a front elevation view of one example of the fail-as-is mechanism illustrated in FIG. 2, according to an embodiment of the present disclosure
- FIG. 4 is a schematic illustration of the fail-as-is mechanism and cooperating tool in an operational position, according to an embodiment of the present disclosure
- FIG. 5 is a schematic illustration of the fail-as-is mechanism and cooperating tool in another operational position, according to an embodiment of the present disclosure
- FIG. 6 is a schematic illustration of the fail-as-is mechanism and cooperating tool in another operational position, according to an embodiment of the present disclosure
- FIG. 7 is a schematic illustration of the fail-as-is mechanism and cooperating tool in another operational position, according to an embodiment of the present disclosure.
- FIG. 8 is a schematic illustration of the fail-as-is mechanism and cooperating tool in another operational position, according to an embodiment of the present disclosure.
- Embodiments of the present disclosure generally relate to a well system and well devices employing a failsafe control.
- the well system comprises a well tool and an actuation mechanism which cooperates with the well tool to move or shift the well tool between operational positions.
- the actuation mechanism is designed and serves as a fail-as-is mechanism that reduces or eliminates the risk of inadvertent actuation of the well tool.
- the well tool comprises a valve coupled in cooperation with the actuation mechanism.
- the actuation mechanism is designed as a fail-as-is mechanism that allows the valve to remain in a current position if there is a failure in a control mechanism, such as a loss of hydraulic pressure in a control line maintaining the valve in an open position.
- the fail-as-is mechanism also enables the tool, e.g., valve, to remain in a current position in the case of a related component failure. If the valve is in an open position when the component failure occurs, for example, the valve remains open. Similarly, if the valve is in the closed position when the failure occurs, the valve remains closed.
- the tool and its actuation mechanism may have a variety of forms for use with a variety of overall well systems.
- the tool comprises a valve deployed in an intervention tool.
- the valve may comprise a lubricator valve deployed in the intervention tool to balance pressure as the intervention tool is run downhole into a wellbore.
- the fail-as-is mechanism prevents inadvertent shifting of the valve to another operational position even if a control line or other valve component fails during run-in of the intervention tool.
- a well system 20 is illustrated, according to one embodiment of the present disclosure.
- a well 22 comprises a wellbore 24 which may be lined with a casing 26, although in other situations the wellbore may be either an open, or partially cased wellbore.
- the well system 20 comprises a well string 28 having a variety of operational components 30. The specific types of operational components 30 depend on the well operation to be performed.
- Well string 28 further comprises a well tool 32 that may be moved/shifted between operational positions via an actuation mechanism 34.
- actuation mechanism 34 comprises a fail-as-is mechanism to help prevent inadvertent actuation of the well tool 32 to another operational position.
- the well string 28 may be deployed downhole by a conveyance 36 which may have a variety of forms, such as production tubing, coiled tubing, cable, or other suitable conveyances.
- the conveyance 36 is used to deliver well string 28 and its well tool 32 downhole to a desired location in a wellbore 24.
- conveyance 34 is delivered downhole beneath surface equipment 38 positioned at a surface location 40.
- surface equipment 38 may comprise a wellhead and/or rig equipment.
- the well string 28 comprises an intervention tool system
- well tool 32 is a valve, such as a lubricator valve.
- the illustrated wellbore 24 is a generally vertical wellbore, however the system and methodology also may be utilized in deviated, e.g. horizontal, wellbores.
- well tool 32 comprises a movable member 42 that may be moved between operational positions.
- well tool 32 may comprise a variety of tools, the illustrated well tool example comprises a valve, and movable member 42 comprises a valve member movable/shiftable between operational flow positions.
- Well tool 32 may comprise an inline barrier valve, for example, in which movable valve member 42 is movable between a closed position and an open position. The open position allows fluid flow through a primary flow passage 44 extending through well tool 32 and actuation mechanism 34.
- movable member 42 is a ball valve member having an interior flow passage 46.
- the ball valve member 42 is pivotably mounted in a surrounding valve housing 48 against a ball seal 50.
- Ball valve member 42 is pivoted against ball seal 50 between an open position, allowing flow along flow passage 44 and interior flow passage 46, and a closed position blocking flow along flow passage 44.
- the movable member/ball 42 is illustrated in the open flow position.
- actuation mechanism 34 comprises a mandrel 52 translatably mounted in a cylinder 54 defined by an actuation mechanism housing 56.
- valve housing 48 and actuation mechanism housing 56 may be formed as separate housings, the illustrated embodiment shows the valve housing 48 and actuation mechanism housing 56 as a single integral housing.
- Mandrel 52 is sealed with respect to the surrounding actuation mechanism housing 56 via a plurality of seals 58.
- seals 58 may comprise circular seals mounted in corresponding grooves 60 formed circumferentially along the interior surface of actuation mechanism housing 56.
- the mandrel 52 also comprises a longitudinal passage 62 through which fluid may be conducted as it flows along flow passage 44.
- Mandrel 52 is coupled with movable member 42 via a suitable mandrel operator 64. If movable member 42 comprises a ball valve, as illustrated, mandrel operator 64 comprises a linkage configured to pivot the ball valve between open and closed positions as mandrel 52 translates back and forth in a longitudinal direction along cylinder 54.
- Shifting of mandrel 52 back and forth within the actuation mechanism housing 56 may be achieved via actuation of a piston 66 cooperatively coupled with mandrel 52.
- Piston 66 is slidably mounted within a recessed region 68 that is recessed into an interior wall of actuation mechanism housing 56 at a location surrounding mandrel 52.
- a predetermined input may be applied to piston 66 to selectively shift the piston back and forth in recessed region 68.
- every transition of the piston 66 along recessed region 68 does not impart motion to mandrel 52, and at least one "dummy" shifting of piston 66 is provided between each actual movement of mandrel 52.
- piston 66 the interaction of piston 66 and of mandrel 52 enables the actuation mechanism 34 to perform as a fail-as-is mechanism by limiting movement of mandrel 52 (and thus valve member 42) to specific shifts within a series of shifts. Effectively, piston 66 is decoupled from mandrel 52 in that movement of piston does not necessarily move mandrel 52.
- the predetermined input applied to shift piston 66 may be in a variety of forms, such as electrical, electro-hydraulic, hydraulic, or other types of inputs.
- the input is a hydraulic input provided by one or more hydraulic lines 70. If hydraulic inputs are used, single hydraulic lines may be used to move piston 66 against a resilient member; or two or more hydraulic lines 70 may be employed to selectively move the piston 66 back and forth along recessed region 68.
- the predetermined hydraulic input is provided by a pair of hydraulic lines 70 with an individual hydraulic line positioned on each side of piston 66 to selectively move the piston back and forth.
- the hydraulic lines 70 are located to deliver hydraulic fluid into recessed region 68 on opposite sides of piston 66 via ports 72 extending through housing 56.
- the piston 66 may comprise a plurality of seals 74 positioned to form a seal between piston 66 and mandrel 52 on one side of the piston; and between piston 66 and an interior surface defining recessed region 68 on a radially opposite side of the piston. Pressurized hydraulic fluid is selectively applied to each side of piston 66 to drive the piston back and forth in recessed region 68 and to ultimately shift mandrel 52, thereby moving the movable member 42 to another operational position.
- selective engagement mechanism 76 is an indexer or indexing system in which piston 66 comprises a plurality of slots 78 that move in cooperation with corresponding keys 80 mounted on mandrel 52.
- piston 66 comprises the plurality of slots 78 formed by a series of short slots 82 and a series of long slots 84 which are longitudinally oriented along piston 66.
- the indexing system may comprise a J- slot indexing system with at least one long J-slot 84 between each sequential pair of short J-slots 82 moving in a circumferential direction around piston 66.
- a plurality of long J-slots 84 e.g. two J-slots, is positioned between each sequential pair of short J-slots 82.
- the piston 66 may have two sets of the plurality of slots 78 in which each set of slots is positioned at an opposed longitudinal end of piston 66.
- the slots 78 are oriented for engagement with corresponding sets of keys 80 mounted to mandrel 52, on both longitudinal ends of piston 66.
- movable member 42 is a ball valve movable via appropriate activation of selective engagement mechanism 76.
- the selective engagement mechanism 76 may be an index system comprising J-slots located on opposite longitudinal ends of the piston 66 such that each set of slots 78 is arranged in a pattern with short J-slots 82 separated by two long J-slots 84, for example.
- mandrel 52 has two sets of matching sized lugs or keys 80.
- piston 66 moves through a full stroke along recessed region 68 and the subject mandrel keys 80 move into a long slot 84, the mandrel 52 does not move.
- the mandrel keys 80 move into one of the short slots 82, the mandrel 52 moves according to the corresponding movement of the piston 66 as it transitions through its piston stroke. In the illustrated example, the movement of mandrel 52 cycles the valve member 42 between open and closed positions.
- the actuation mechanism 34 is a hydraulic actuation mechanism with a displacement based fail-as-is feature for selectively moving a ball type, downhole barrier valve while protecting the valve from inadvertent actuation.
- the fail-as-is feature may comprise other components, actuation techniques, and configurations for moving a variety of tools between operational positions while protecting the tool from inadvertent actuation.
- the series of actuations of piston 66 between each movement of movable member 42 may be selected according to the requirements of a specific application, well tool, and/or operator considerations. In the example illustrated, two long slots 84 are followed with a short slot 82, resulting in two "dead” cycles prior to actuating the well tool 32.
- the number of "dead” cycles in which the piston 66 does not actuate the mandrel 52 may be as few as one or as many as three or more depending on the specific application. In some cases, the "dead” cycles may only follow one of the operational sequences. For example, two operational cycles may occur sequentially followed by one or more "dead” cycles.
- FIGS. 4-8 a series of actuation cycles is provided in sequential figures to help illustrate the cooperation of actuation mechanism 34 and well tool 32.
- the cooperation results in selective movement of the movable member 42, e.g. valve member, between operational positions while protecting the well tool from inadvertent actuation.
- the piston 66 is initially in a rightmost position and the keys 80 located on the right side of piston 66 are engaged with the short slots 82, as illustrated in FIG. 4.
- the piston 66 is illustrated as actuated through its full stroke to the right, thus transitioning mandrel 52 to the right side which, in turn, moves valve member 42 to an open position. (See FIG. 2).
- piston 66 and slots 78 may be partially rotated around the mandrel 52 during each engagement to allow progression from one cycle to the next.
- piston 66 is subsequently cycled or stroked to the left, the keys 80 located on the left side of piston 66 are engaged with long slots 84, as illustrated in FIG. 5.
- this stroke of piston 66 the mandrel 52 does not move.
- this subsequent stroke is called the "dummy up" cycle.
- the next sequential cycle or stroke of the piston 66 is again to the right, but this stroke results in engagement of the keys 80 located on the right side of piston 66 with long slots 84, as illustrated in FIG. 6.
- This stroke is also a dummy stroke and may be referred to as a "dummy down" stroke, which again protects valve member 42 from inadvertent actuation to a next operational position, e.g. a closed position.
- piston 66 During the next actuation of piston 66, the piston is cycled or stroked to the left and the left keys 80 are engaged by short slots 82, as illustrated in FIG. 7. Continued movement of piston 66 through its full stroke, along recessed region 68, causes movement of the keys 80 and mandrel 52 toward the left, as illustrated in FIG. 8. This actuation of piston 66 and the resultant movement of mandrel 52 cause movement of valve member 42 to a subsequent operational position. In this particular example, the valve member 42 is transitioned from an open position to a closed position.
- the fail-as-is feature of the actuation mechanism 34 protects the well tool against inadvertent actuation by providing at least one dummy cycle, e.g. two dummy cycles, between actual actuation steps.
- a dummy cycle e.g. two dummy cycles
- the piston 66 is in the initial actuation position illustrated in FIG. 4. If one of the control lines 70 breaks and causes a pressure imbalance across piston 66, the piston may be actuated through the "dummy up" cycle. Because this cycle is a dummy cycle, the movable member 42, e.g. ball valve, is not actuated and remains in its current position.
- actuation mechanism 34 serves as a fail-as-is mechanism that enables well tool actuation, while protecting the well tool from inadvertent actuation.
- the overall well system 20 may be designed for use in a variety of well applications and well environments. Accordingly, the number, type and configuration of components and systems within the overall system may be adjusted to accommodate different applications.
- the well tool and actuation mechanism may be employed in an intervention tool system or in a variety of other types of well systems.
- the technique for shifting actuation mechanism 34 may rely on a variety of predetermined inputs, such as hydraulic inputs, electrical inputs, electro-hydraulic inputs, and other inputs suitable for imparting motion to the shiftable piston.
- the piston, mandrel, selective engagement mechanism, and other components of the actuation mechanism may be adjusted to the specifics of a given well application and well tool.
- the well tool may comprise a variety of valves and other types of well tools actuated between operational positions via various linkages between the actuation mechanism and the movable element of the well tool.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Fluid-Pressure Circuits (AREA)
- Safety Devices In Control Systems (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10744177.6A EP2398998A4 (en) | 2009-02-19 | 2010-02-15 | Fail as is mechanism and method |
BRPI1008460A BRPI1008460B1 (en) | 2009-02-19 | 2010-02-15 | system for use in a well, system for use in a well hole, state failure mechanism, and method for operating a state failure mechanism |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15367109P | 2009-02-19 | 2009-02-19 | |
US61/153,671 | 2009-02-19 | ||
US12/695,754 US8256518B2 (en) | 2009-02-19 | 2010-01-28 | Fail as is mechanism and method |
US12/695,754 | 2010-01-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010096361A1 true WO2010096361A1 (en) | 2010-08-26 |
Family
ID=42558919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2010/024234 WO2010096361A1 (en) | 2009-02-19 | 2010-02-15 | Fail as is mechanism and method |
Country Status (4)
Country | Link |
---|---|
US (1) | US8256518B2 (en) |
EP (1) | EP2398998A4 (en) |
BR (1) | BRPI1008460B1 (en) |
WO (1) | WO2010096361A1 (en) |
Families Citing this family (23)
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US8056643B2 (en) * | 2008-03-26 | 2011-11-15 | Schlumberger Technology Corporation | Systems and techniques to actuate isolation valves |
US8684099B2 (en) * | 2010-02-24 | 2014-04-01 | Schlumberger Technology Corporation | System and method for formation isolation |
US8813855B2 (en) | 2010-12-07 | 2014-08-26 | Baker Hughes Incorporated | Stackable multi-barrier system and method |
US9027651B2 (en) | 2010-12-07 | 2015-05-12 | Baker Hughes Incorporated | Barrier valve system and method of closing same by withdrawing upper completion |
US9051811B2 (en) | 2010-12-16 | 2015-06-09 | Baker Hughes Incorporated | Barrier valve system and method of controlling same with tubing pressure |
US8550172B2 (en) | 2010-12-16 | 2013-10-08 | Baker Hughes Incorporated | Plural barrier valve system with wet connect |
US8171998B1 (en) * | 2011-01-14 | 2012-05-08 | Petroquip Energy Services, Llp | System for controlling hydrocarbon bearing zones using a selectively openable and closable downhole tool |
US20120261137A1 (en) * | 2011-03-31 | 2012-10-18 | Schlumberger Technology Corporation | Flow control system |
US8955600B2 (en) | 2011-04-05 | 2015-02-17 | Baker Hughes Incorporated | Multi-barrier system and method |
US9309745B2 (en) | 2011-04-22 | 2016-04-12 | Schlumberger Technology Corporation | Interventionless operation of downhole tool |
US9151139B2 (en) * | 2011-06-02 | 2015-10-06 | Baker Hughes Incorporated | Method of reducing deflection through a rod piston in a subsurface safety valve |
CA2844342C (en) | 2011-07-29 | 2019-09-03 | Packers Plus Energy Services Inc. | Wellbore tool with indexing mechanism and method |
US9828829B2 (en) | 2012-03-29 | 2017-11-28 | Baker Hughes, A Ge Company, Llc | Intermediate completion assembly for isolating lower completion |
US9016372B2 (en) | 2012-03-29 | 2015-04-28 | Baker Hughes Incorporated | Method for single trip fluid isolation |
US9016389B2 (en) | 2012-03-29 | 2015-04-28 | Baker Hughes Incorporated | Retrofit barrier valve system |
WO2014193405A1 (en) * | 2013-05-31 | 2014-12-04 | Halliburton Energy Services, Inc. | Annulus activated ball valve assembly |
US10428609B2 (en) | 2016-06-24 | 2019-10-01 | Baker Hughes, A Ge Company, Llc | Downhole tool actuation system having indexing mechanism and method |
US10190389B2 (en) * | 2016-11-18 | 2019-01-29 | Baker Hughes, A Ge Company, Llc | High pressure interventionless borehole tool setting force |
US10704363B2 (en) * | 2017-08-17 | 2020-07-07 | Baker Hughes, A Ge Company, Llc | Tubing or annulus pressure operated borehole barrier valve |
US11773690B2 (en) * | 2017-11-15 | 2023-10-03 | Schlumberger Technology Corporation | Combined valve system and methodology |
WO2020122914A1 (en) * | 2018-12-13 | 2020-06-18 | Halliburton Energy Services, Inc. | Variable load valve actuator |
US12000241B2 (en) | 2020-02-18 | 2024-06-04 | Schlumberger Technology Corporation | Electronic rupture disc with atmospheric chamber |
CN115516238A (en) | 2020-04-17 | 2022-12-23 | 斯伦贝谢技术有限公司 | Hydraulic trigger with locked spring force |
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2010
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- 2010-02-15 BR BRPI1008460A patent/BRPI1008460B1/en active IP Right Grant
- 2010-02-15 EP EP10744177.6A patent/EP2398998A4/en not_active Withdrawn
- 2010-02-15 WO PCT/US2010/024234 patent/WO2010096361A1/en active Application Filing
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Also Published As
Publication number | Publication date |
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US20100206579A1 (en) | 2010-08-19 |
US8256518B2 (en) | 2012-09-04 |
EP2398998A1 (en) | 2011-12-28 |
EP2398998A4 (en) | 2015-04-22 |
BRPI1008460A2 (en) | 2019-04-16 |
BRPI1008460B1 (en) | 2020-04-22 |
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