AU2014235126A1 - Deepset wireline retrievable safety valve - Google Patents

Deepset wireline retrievable safety valve Download PDF

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Publication number
AU2014235126A1
AU2014235126A1 AU2014235126A AU2014235126A AU2014235126A1 AU 2014235126 A1 AU2014235126 A1 AU 2014235126A1 AU 2014235126 A AU2014235126 A AU 2014235126A AU 2014235126 A AU2014235126 A AU 2014235126A AU 2014235126 A1 AU2014235126 A1 AU 2014235126A1
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AU
Australia
Prior art keywords
valve
piston member
actuator sleeve
force
housing
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.)
Abandoned
Application number
AU2014235126A
Inventor
Winfield SIDES
Roddie R. Smith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weatherford Technology Holdings LLC
Original Assignee
Weatherford Technology Holdings LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Weatherford Technology Holdings LLC filed Critical Weatherford Technology Holdings LLC
Publication of AU2014235126A1 publication Critical patent/AU2014235126A1/en
Assigned to WEATHERFORD TECHNOLOGY HOLDINGS, LLC reassignment WEATHERFORD TECHNOLOGY HOLDINGS, LLC Request for Assignment Assignors: WEATHERFORD/LAMB, INC.
Abandoned legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00Valve arrangements for boreholes or wells
    • E21B34/06Valve arrangements for boreholes or wells in wells
    • E21B34/10Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
    • E21B34/105Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole retrievable, e.g. wire line retrievable, i.e. with an element which can be landed into a landing-nipple provided with a passage for control fluid
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B2200/00Special features related to earth drilling for obtaining oil, gas or water
    • E21B2200/05Flapper valves

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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)
  • Safety Valves (AREA)
  • Lift Valve (AREA)
  • Surgical Instruments (AREA)

Abstract

The present invention generally relates to a deepset wireline retrievable safety valve for controlling fluid flow through a production tubing string. In one aspect, a valve for use in a wellbore is provided. The valve includes a housing having a bore. The valve further includes an actuator sleeve movable within the housing between a retracted position and an extended position. The actuator sleeve in the retracted position allows a flapper member to obstruct the bore in the housing. Additionally, the valve includes a first piston member attached to a first side of the actuator sleeve and a second piston member attached to a second side of the actuator sleeve, wherein wellbore fluid pressure acts on the first piston member, which results in a first force, and acts on the second piston, which results in a second force, and the first force and the second force are applied to the actuator sleeve in an opposite direction.

Description

WO 2014/151285 PCT/US2014/025374 DEEPSET WIRELINE RETRIEVABLE SAFETY VALVE CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims benefit of United States provisional patent application serial number 61/800,002, filed March 15, 2013, which is herein 5 incorporated in its entirety. BACKGROUND OF THE INVENTION Field of the Invention [0002] Embodiments of the present invention generally relate to a valve for use in a wellbore. More particularly, this invention pertains to a deepset wireline retrievable 10 safety valve for controlling fluid flow through a production tubing string. Description of the Related Art [0003] Deep set safety valves are commonly used to shut in oil and gas wells. Such safety valves are typically fitted into production tubing in a hydrocarbon producing well, and operate to block the flow of formation fluid upwardly through the 15 production tubing should a failure or hazardous condition occur. [0004] Deep set safety valves may be configured as rigidly connected to the production tubing (tubing retrievable), or may be installed and retrieved by wireline, without disturbing the production tubing (wireline retrievable). A problem arises when the valve is positioned deep within the wellbore (>6000 feet) because the components 20 in the valve are unable operate due to hydrostatic pressure of the fluid in a control line connected to the valve and the wellbore pressure. There is a need therefore for a deep set safety valve that can withstand the effects of wellbore pressure. SUMMARY OF THE INVENTION [0005] The present invention generally relates to a deepset wireline retrievable 25 safety valve for controlling fluid flow through a production tubing string. In one aspect, a valve for use in a wellbore is provided. The valve includes a housing having a bore. The valve further includes an actuator sleeve movable within the housing between a retracted position and an extended position. The actuator sleeve in the retracted position allows a flapper member to obstruct the bore in the housing. Additionally, the 30 valve includes a first piston member attached to a first side of the actuator sleeve and 1 WO 2014/151285 PCT/US2014/025374 a second piston member attached to a second side of the actuator sleeve, wherein wellbore fluid pressure acts on the first piston member which results in a first force and acts on the second piston which results in a second force. The first force and the second force are applied to the actuator sleeve in an opposite direction. 5 [0006] In another aspect, a valve for use in a wellbore is provided. The valve includes a housing having a bore. The valve further includes an actuator sleeve movable within the housing between a retracted position and an extended position. The actuator sleeve in the retracted position allows a flapper member to obstruct the bore in the housing. The valve also includes a first piston member attached to a first 10 side of the actuator sleeve. The first piston member is in fluid communication with a control line. The valve also includes a second piston member attached to a second side of the actuator sleeve. The second piston member is in fluid communication with a cavity in the housing. Additionally, the valve includes a biasing member configured to bias the actuator sleeve in the retracted position. 15 BRIEF DESCRIPTION OF THE DRAWINGS [0007] So that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings. It is to be noted, however, that the 20 appended drawings illustrate only typical embodiments of this invention and are therefore not to be considered limiting of its scope, for the invention may admit to other equally effective embodiments. [0008] Figure 1 is a view illustrating a safety valve. [0009] Figure 1A is an enlarged view of the safety valve. 25 [0010] Figure 1 B is an enlarged view of the safety valve. [0011] Figure 1C is an enlarged view of the safety valve. DETAILED DESCRIPTION [0012] The present invention generally relates to a deep set safety valve for use in a wellbore. To better understand the novelty of the deep set safety valve of the 2 WO 2014/151285 PCT/US2014/025374 present invention and the methods of use thereof, reference is hereafter made to the accompanying drawings. [0013] Figure 1 is a view illustrating a deep set retrievable safety valve 100. The valve 100 is generally used in a production tubing to selectively control the fluid flow 5 in the production tubing. Typically the valve 100 is lowered in the production tubing until a first end 190 of the valve 100 is placed within a safety valve landing nipple that is connected to a single control line, such as control line 112. The control line 112 supplies fluid to control the movement of an actuation sleeve 105 within a housing 110 of the valve 100. As will be discussed herein, the movement of the actuation 10 sleeve 105 manipulates a flapper member 125 which allows the valve 100 to move between an opened position and a closed position. [0014] Figure 1 shows the valve 100 in the opened position due to the flapper member 125 not obstructing a longitudinal central bore 170 through the valve 100. As shown, the actuation sleeve 105 is disposed concentrically within the housing 110. 15 The actuation sleeve 105 represents a mechanism for moving the flapper member 125 to open the valve 100 although other types of actuators may be used in some embodiments. To move the valve 100 to the opened position, the actuation sleeve 105 slides within the housing 110 in the direction of direction arrow 60 based on fluid pressure from the control line 112. The flapper member 125 is selectively displaced 20 due to movement of the actuation sleeve 105 across an interface between the flapper member 125 and a seat 205. To move the valve 100 to the closed position, the actuation sleeve 105 slides within the housing 110 in the direction of direction arrow 50. The movement of the actuation sleeve 105 out of contact with the flapper member 125 allows the flapper member 125 to obstruct the bore 170. The flapper 25 member 125 is biased toward the seat 205 by a biasing member 130, such as a spring. The biasing of the flapper member 125 causes the flapper member 125 to move into contact with the seat 205 upon withdrawal of the actuation sleeve 105 and as a result, the valve 100 is in the closed position. [0015] The valve 100 includes a first piston member 150 and a second piston 30 member 175. The first piston member 150 is connected to the actuation sleeve 105 via a first piston rod 155, and the second piston member 175 is connected to the actuation sleeve 105 via a second piston rod 180. An end of each piston rod 155, 180 is connected to the actuation sleeve 105 at a hook area 115. The end of the first 3 WO 2014/151285 PCT/US2014/025374 piston rod 155 is connected at the hook area 115 at a location that is offset from the connection location of the end of the second piston rod 180. [0016] The first piston member 150 is movable within a chamber 160, the first piston member 150 having a first end and a second end. The fluid from the control 5 line 112 enters into the chamber 160 at port 210. The fluid in the chamber 160 acts on the first end of the piston member 150, which results in a force in the direction of direction arrow 20 (Figure 1A). The force is used to move the actuation sleeve 105 in the direction of direction arrow 60. In addition, fluid in the wellbore acts on the second end of the first piston member 150, which results in a force in the direction of direction 10 arrow 30 (Figure 1B). The forces applied to the first piston member 150 are communicated to the actuation sleeve 105 by the first piston rod 155. [0017] The second piston member 175 is movable within a chamber 145, the second piston member 175 having a first end and a second end. The chamber 145 is in fluid communication with a cavity 135 via a port 140. The fluid in the cavity 135 15 acts on the first end of the piston member 175, which results in a force on the second piston member 175 in the direction of direction arrow 90 (Figure 1 B). In addition, fluid in the wellbore acts on the second end of the second piston member 175, which results in a force in the direction of direction arrow 80 (Figure 1 B). The forces applied to the second piston member 175 are communicated to the actuation sleeve 105 by 20 the second piston rod 180. The cavity 135 may be filled with a gas and/or a compressible fluid. The cavity 135 may be charged such that the gas and/or fluid in the cavity 135 acts on the first end of the piston member 175 and results in a predetermined force. In one embodiment, the cavity 135 can be at an assembled atmospheric pressure. In another embodiment, the cavity 135 can be substantially 25 free of gas as in a near vacuum. In another embodiment, the cavity 135 can be charged with a compressible fluid up to several hundred psi. In this manner, the cavity 135 acts as a fluid compensator for piston travel during functioning of the valve 100. [0018] As shown in Figure 1 B, fluid in the wellbore acts on the first piston member 30 150 which results in a force in the direction of direction arrow 30, and the same fluid in the wellbore acts on the second piston member 175, which results in a force in the direction of direction arrow 80. The force applied to the first piston member 150 due to wellbore pressure is equal and opposite the force applied to the second piston 4 WO 2014/151285 PCT/US2014/025374 member 175 due to wellbore pressure. In other words, the fluid pressure in the wellbore does not affect the movement of the actuation sleeve 105 because the force on the piston member 150 counteracts the force on the piston member 175. The use of the second piston member 175 allows the valve 100 to be a non-well sensing 5 valve, which means that the functionality of the valve 100 is not affected by the fluid pressure in the wellbore. [0019] As shown in Figure 1, the valve 100 includes a biasing member 120, such as a spring, that is configured to bias the actuation sleeve 105 in the direction indicated by direction arrow 50. The biasing member 120 is attached to the actuation 10 sleeve 105. The biasing member 120 is configured to be compressed when the actuation sleeve 105 is in an extended position (Figure 1), and the biasing member 120 is configured to be uncompressed when the sleeve 105 is in a retracted position. The actuation sleeve 105 moves in the housing 110 to the extended position when the force applied to the actuation sleeve 105 due to fluid pressure from the control line 15 112 (via the first piston member 150) is greater than the force applied to the actuation sleeve 105 by the biasing member 120. The actuation sleeve 105 moves in the housing 110 to the retracted position when the force applied to the actuation sleeve 105 due to fluid pressure from the control line 112 (via the first piston member 150) is less than the force applied to the actuation sleeve 105 by the biasing member 120. 20 [0020] The biasing member 120 is designed and selected to overcome hydrostatic pressure of the fluid in the control line 112. As known in the art, hydrostatic pressure is a pressure exerted by a fluid at equilibrium due to the force of gravity. The control line 112 extends from the surface to the valve 100. Thus, when the valve 100 is positioned deep within the wellbore (>6000 feet) the control line 112 is long. As such, 25 the hydrostatic pressure of the fluid in the long control line 112 that acts on the first piston member 150 may result in a large force being applied to the actuation sleeve 105. The biasing member 120 is designed to generate a force on the actuation sleeve 105 in the direction of direction arrow 50 that is greater than the force applied to the actuation sleeve 105 in the direction of direction arrow 60 as a result of the 30 hydrostatic pressure of the fluid in the control line 112. In one embodiment, more force is required to move the actuation sleeve 105 to the retracted position as compared to the force required to move the actuation sleeve 105 to the extended position due to the hydrostatic pressure of the fluid in the control line 112. 5 WO 2014/151285 PCT/US2014/025374 Additionally, since the valve 100 is a non-well sensing valve, as set forth herein, the design and selection of the biasing member 120 does not need to take into account the forces applied to the actuation sleeve 105 due to wellbore fluid pressure acting on the piston members 150, 175. 5 [0021] In one embodiment, a valve for use in a wellbore is provided. The valve includes a housing having a bore. The valve further includes an actuator sleeve movable within the housing between a retracted position and an extended position. The actuator sleeve in the retracted position allows a flapper member to obstruct the bore in the housing. Additionally, the valve includes a first piston member attached to 10 a first side of the actuator sleeve and a second piston member attached to a second side of the actuator sleeve, wherein wellbore fluid pressure acts on the first piston member, which results in a first force, and acts on the second piston, which results in a second force, and the first force and the second force are applied to the actuator sleeve in an opposite direction. 15 [0022] In one or more embodiments, the first piston member is in fluid communication with a control line. [0023] In one or more embodiments, the fluid from the control line acts on a first end of the first piston member, and the wellbore fluid pressure acts on a second end of the first piston member. 20 [0024] In one or more embodiments, the second piston member is in fluid communication with a cavity in the housing. [0025] In one or more embodiments, the fluid from the cavity acts on a first end of the second piston member, and the wellbore fluid pressure acts on a second end of the second piston member. 25 [0026] In one or more embodiments, a spring is attached to the actuator sleeve, the spring being configured to bias the actuator sleeve in the retracted position. [0027] In one or more embodiments, the spring is configured to apply a force on the actuator sleeve that is greater than a force that results from hydrostatic pressure acting on the first piston member. 6 WO 2014/151285 PCT/US2014/025374 [0028] In another aspect, a valve for use in a wellbore is provided. The valve includes a housing having a bore. The valve further includes an actuator sleeve movable within the housing between a retracted position and an extended position. The actuator sleeve in the retracted position allows a flapper member to obstruct the 5 bore in the housing. The valve also includes a first piston member attached to a first side of the actuator sleeve. The first piston member is in fluid communication with a control line. The valve also includes a second piston member attached to a second side of the actuator sleeve. The second piston member is in fluid communication with a cavity in the housing. Additionally, the valve includes a biasing member configured 10 to bias the actuator sleeve in the retracted position. [0029] In one or more embodiments, the actuator sleeve is movable from the retracted position to the extended position in response to fluid pressure acting on the first piston member. [0030] While the foregoing is directed to embodiments of the present invention, 15 other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. 7

Claims (10)

1. A valve for use in a wellbore, the valve comprising: a housing having a bore; 5 an actuator sleeve movable within the housing between a retracted position and an extended position, wherein the actuator sleeve in the retracted position allows a flapper member to obstruct the bore in the housing; and a first piston member attached to a first side of the actuator sleeve and a second piston member attached to a second side of the actuator sleeve, wherein 10 wellbore fluid pressure acts on the first piston member, which results in a first force, and acts on the second piston, which results in a second force, and wherein the first force and the second force are applied to the actuator sleeve in opposite directions.
2. The valve of claim 1, wherein the first piston member is in fluid communication 15 with a control line.
3. The valve of claim 2, wherein the fluid from the control line acts on a first end of the first piston member and the wellbore fluid pressure acts on a second end of the first piston member. 20
4. The valve of claim 1, wherein the second piston member is in fluid communication with a cavity in the housing.
5. The valve of claim 4, wherein the fluid in the cavity acts on a first end of the 25 second piston member and the wellbore fluid pressure acts on a second end of the second piston member.
6. The valve of claim 1, further comprising a spring attached to the actuator sleeve, the spring being configured to bias the actuator sleeve in the retracted 30 position.
7. The valve of claim 6, wherein the spring is configured to apply a force on the actuator sleeve that is greater than a force that results from hydrostatic pressure acting on the first piston member. 8 WO 2014/151285 PCT/US2014/025374
8. A valve for use in a wellbore, the valve comprising: a housing having a bore; an actuator sleeve movable within the housing between a retracted position 5 and an extended position, wherein the actuator sleeve in the retracted position allows a flapper member to obstruct the bore in the housing; a first piston member attached to a first side of the actuator sleeve, the first piston member being in fluid communication with a control line; a second piston member attached to a second side of the actuator sleeve, the 10 second piston member being in fluid communication with a cavity in the housing; and a biasing member configured to bias the actuator sleeve in the retracted position.
9. The valve of claim 8, wherein the actuator sleeve is movable from the retracted 15 position to the extended position in response to fluid pressure acting on the first piston member.
10. The valve of claim 8, wherein the biasing member is configured to apply a force on the actuator sleeve that is greater than a force that results from hydrostatic 20 pressure acting on the first piston member. 9
AU2014235126A 2013-03-15 2014-03-13 Deepset wireline retrievable safety valve Abandoned AU2014235126A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361800002P 2013-03-15 2013-03-15
US61/800,002 2013-03-15
PCT/US2014/025374 WO2014151285A2 (en) 2013-03-15 2014-03-13 Deepset wireline retrievable safety valve

Publications (1)

Publication Number Publication Date
AU2014235126A1 true AU2014235126A1 (en) 2015-10-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
AU2014235126A Abandoned AU2014235126A1 (en) 2013-03-15 2014-03-13 Deepset wireline retrievable safety valve

Country Status (5)

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US (1) US20140262303A1 (en)
EP (1) EP2971472A2 (en)
AU (1) AU2014235126A1 (en)
CA (1) CA2905885A1 (en)
WO (1) WO2014151285A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10655431B2 (en) 2016-03-11 2020-05-19 Halliburton Energy Services, Inc. Bypass diverter sub for subsurface safety valves
CN107476781A (en) * 2016-06-07 2017-12-15 中国石油大学(华东) All-hydraulic control storm valve
US11578561B2 (en) 2020-10-07 2023-02-14 Weatherford Technology Holdings, Llc Stinger for actuating surface-controlled subsurface safety valve

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4161219A (en) * 1978-02-27 1979-07-17 Camco, Incorporated Piston actuated well safety valve
US4407363A (en) * 1981-02-17 1983-10-04 Ava International Subsurface well apparatus
US4660646A (en) * 1985-11-27 1987-04-28 Camco, Incorporated Failsafe gas closed safety valve
US4860991A (en) * 1989-04-06 1989-08-29 Camco, Incorporated Safety valve
US5564501A (en) * 1995-05-15 1996-10-15 Baker Hughes Incorporated Control system with collection chamber
US6513594B1 (en) * 2000-10-13 2003-02-04 Schlumberger Technology Corporation Subsurface safety valve
US7246668B2 (en) * 2004-10-01 2007-07-24 Weatherford/Lamb, Inc. Pressure actuated tubing safety valve
US7954550B2 (en) * 2008-11-13 2011-06-07 Baker Hughes Incorporated Tubing pressure insensitive control system

Also Published As

Publication number Publication date
WO2014151285A2 (en) 2014-09-25
EP2971472A2 (en) 2016-01-20
CA2905885A1 (en) 2014-09-25
US20140262303A1 (en) 2014-09-18
WO2014151285A3 (en) 2015-04-09

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PC1 Assignment before grant (sect. 113)

Owner name: WEATHERFORD TECHNOLOGY HOLDINGS, LLC

Free format text: FORMER APPLICANT(S): WEATHERFORD/LAMB, INC.

MK5 Application lapsed section 142(2)(e) - patent request and compl. specification not accepted