US20120090832A9 - Downhole Actuator - Google Patents
Downhole Actuator Download PDFInfo
- Publication number
- US20120090832A9 US20120090832A9 US13/130,489 US200913130489A US2012090832A9 US 20120090832 A9 US20120090832 A9 US 20120090832A9 US 200913130489 A US200913130489 A US 200913130489A US 2012090832 A9 US2012090832 A9 US 2012090832A9
- Authority
- US
- United States
- Prior art keywords
- actuator
- component
- well tubular
- gripping
- driver
- 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
Images
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
- E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
- E21B23/02—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing
-
- 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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/20—Grappling tools, e.g. tongs or grabs gripping internally, e.g. fishing spears
Definitions
- This invention relates to an actuator. More particularly it concerns an actuator for connection to and displacing of a component in a well tubular, as the tubular comprises a driver and a working organ.
- the component may typically be a control for a valve.
- Control of this type is typically constituted by a concentric sleeve in a well tubular where in the sleeve wall is arranged gripping openings for connecting control equipment, and where the control equipment is arranged to be able to displace the control.
- Prior art control equipment is adapted to the internal diameter of the control and provided with grippers fitting in the gripper openings.
- restrictions may be arranged upstream of the valve in the well tubular.
- the restrictions may be formed having a considerably smaller internal diameter than the well tubular.
- there may for example be a restriction having 76 mm internal diameter.
- the restriction prevents the valve being operated by means of known control equipment, as the access to the valve is prevented by the restriction.
- the object of the invention is to remedy or reduce at least one of the prior art drawbacks.
- An actuator according to the invention for connection to and displacing of a component in a well tubular comprising a driver and a working organ, is characterised in that the working organ is provided with an in the radial direction spring loaded gripping device complementary fitting in the component.
- the actuator is in a per se known way connected to such as a cable, a wireline tractor or a coiled tubing.
- the spring loaded gripping device has a radial displacement length making passing a restriction possible and also the following connection to and displacing of the component having a considerably larger internal diameter than the restriction.
- the gripping device may be connected to a leaf spring where the leaf spring is preloaded in the radial direction outward from the well tubular central axis.
- the gripping device is thus positioned closer to the well tubular central axis in its passive position than in its active position.
- the gripping device may be held in its passive position by means of a releasing device where the releasing device on release allows that the gripper device is displaced spring-loaded to its active position. On return of the releasing device to its passive position the gripping device is displaced outward from its engagement with the component.
- a sleeve abutting and being displaceable relative to the leaf spring may constitute the releasing device.
- the releasing device holds the leaf spring and the gripping device in the passive position when the releasing device encircles the leaf spring.
- the releasing device may be connected to the driver and the leaf spring may be connected to the working organ.
- the driver displaces the working organ relative to the driver the leaf spring is first displaced out of the releasing device whereby the leaf spring displaces the gripping device radially to engagement with the component.
- a further displacement of the working organ relative to the driver causes the component to be displaced relative to the well tubular.
- the gripping device rear portion may have an angle relative to the well tubular central axis less than 90 degrees.
- the actuator may thereby be withdrawn outward through the restriction even if the driver should fail.
- An actuator in accordance with the invention makes operation of components in a well tubular possible even if the component is positioned further down in the well than a restriction. It is self-evident that it is technically and economically very advantageous to be able to operate the component without first having to remove the restriction.
- FIG. 1 shows an actuator in accordance with the invention during displacement in a restriction in a well tubular
- FIG. 2 shows the actuator where the actuator gripper device is in engagement with a component
- FIG. 3 shows the actuator after the component is displaced
- FIG. 4 shows a section of the actuator to a larger scale
- FIG. 5 shows a cross-section VI-VI in FIG. 4 ;
- FIG. 6 shows a section of the actuator in an alternative embodiment.
- the reference numeral 1 indicates an actuator connected to a wireline tractor 2 positioned in a well tubular 4 .
- the well tubular 4 has a central axis 6 .
- the actuator 1 comprises a driver 8 for example in the form of an electric or hydraulic power unit which in a per se known way is arranged to be able to displace a working organ 10 in a direction along the well tubular 4 central axis 6 .
- the working organ 10 is in its free end portion provided with a steering guide 12 arranged to be able to steer the actuator 1 during displacing of the well tubular 4 .
- leaf springs 14 are at their first end portions 16 articulateably connected to a to the working organ 10 fixedly connected first attachment 18 , see FIGS. 3 and 4 .
- first attachment 18 In their opposing second end portions 20 the leaf springs 14 are articulateably connected to a second attachment 22 , which is displaceable on the working organ 10 .
- the leaf springs 14 are at their mid portion given one each gripping device 24 in the form of a gripping bulb 26 arranged to be able to engage the gripping recesses 30 of a component 28 , see FIG. 2 .
- the gripping device 24 is also provided with steering bulb 32 arranged to be able to prevent that the gripping device 24 unintentionally engages during displacement in the well tubular 4 .
- the steering bulb 12 must be placed in a steering recess 34 in the component 28 for the gripping bulb to engage the gripping recesses 30 .
- the rear portion 36 of the gripping device 24 has an angle 38 with the central axis 6 being less than 90 degrees and preferably less than 45 degrees.
- a releasing device 40 in the form of a sleeve encircles the working organ 10 .
- the releasing device 40 is connected to the driver 8 .
- the gripping devices 24 are positioned in their passive position near the central axis 6 .
- the gripping devices 24 are positioned in their active position, see FIGS. 2 and 3 .
- FIG. 1 the actuator is being displaced through a restriction 42 in the well tubular 4 .
- the leaf springs 14 are positioned pushed into the releasing device 40 .
- the leaf springs 14 are displaced out of the releasing device 40 by means of the working organ 10 .
- the leaf springs 14 have displaced the gripping devices 24 into engagement with the component 28 .
- FIG. 3 the working organ 10 has displaced the gripping devices 24 and thereby the component 28 inward into the well tubular 4 .
- the actuator may still be pulled out through the restriction 42 . If the actuator 1 is pulled out through the restriction 42 without the gripping devices 24 being brought back to their passive position, then the gripping devices 24 will be resiliently displaced out from their engagement with the component 28 , whereafter the leaf springs 14 abut the restriction 42 . This causes the gripping devices 24 to be displaced in a direction toward the central axis 6 of the well tubular 4 . Due to its shape the gripping device 24 will be displaced further in the same direction when it abuts the restriction 42 .
- the gripping devices 24 are positioned on the free end portions of their respective springs 44 .
- the springs 44 are fixedly connected to the first attachment 18 .
- This simplified embodiment does however not have the same strength as the preferred embodiment, but may in some cases be relevant due to its reduced construction length.
Abstract
Description
- This invention relates to an actuator. More particularly it concerns an actuator for connection to and displacing of a component in a well tubular, as the tubular comprises a driver and a working organ.
- During work in a borehole such as in a petroleum well it is often necessary to be able to displace a component positioned in the well. The component may typically be a control for a valve.
- Control of this type is typically constituted by a concentric sleeve in a well tubular where in the sleeve wall is arranged gripping openings for connecting control equipment, and where the control equipment is arranged to be able to displace the control. Prior art control equipment is adapted to the internal diameter of the control and provided with grippers fitting in the gripper openings.
- For various well technical reasons restrictions may be arranged upstream of the valve in the well tubular. The restrictions may be formed having a considerably smaller internal diameter than the well tubular. In a well tubular of 118 mm internal diameter there may for example be a restriction having 76 mm internal diameter. The restriction prevents the valve being operated by means of known control equipment, as the access to the valve is prevented by the restriction.
- The object of the invention is to remedy or reduce at least one of the prior art drawbacks.
- The object is achieved according to the invention by the features stated in the below description and in the following claims.
- An actuator according to the invention for connection to and displacing of a component in a well tubular comprising a driver and a working organ, is characterised in that the working organ is provided with an in the radial direction spring loaded gripping device complementary fitting in the component.
- The actuator is in a per se known way connected to such as a cable, a wireline tractor or a coiled tubing.
- The spring loaded gripping device has a radial displacement length making passing a restriction possible and also the following connection to and displacing of the component having a considerably larger internal diameter than the restriction.
- The gripping device may be connected to a leaf spring where the leaf spring is preloaded in the radial direction outward from the well tubular central axis.
- The gripping device is thus positioned closer to the well tubular central axis in its passive position than in its active position.
- The gripping device may be held in its passive position by means of a releasing device where the releasing device on release allows that the gripper device is displaced spring-loaded to its active position. On return of the releasing device to its passive position the gripping device is displaced outward from its engagement with the component.
- A sleeve abutting and being displaceable relative to the leaf spring may constitute the releasing device. By adapting the releasing device internal diameter, the releasing device holds the leaf spring and the gripping device in the passive position when the releasing device encircles the leaf spring.
- The releasing device may be connected to the driver and the leaf spring may be connected to the working organ. When the driver displaces the working organ relative to the driver the leaf spring is first displaced out of the releasing device whereby the leaf spring displaces the gripping device radially to engagement with the component. A further displacement of the working organ relative to the driver causes the component to be displaced relative to the well tubular.
- The gripping device rear portion may have an angle relative to the well tubular central axis less than 90 degrees. The actuator may thereby be withdrawn outward through the restriction even if the driver should fail.
- An actuator in accordance with the invention makes operation of components in a well tubular possible even if the component is positioned further down in the well than a restriction. It is self-evident that it is technically and economically very advantageous to be able to operate the component without first having to remove the restriction.
- In the following is described an example of a preferred embodiment being illustrated in the accompanying drawings wherein:
-
FIG. 1 shows an actuator in accordance with the invention during displacement in a restriction in a well tubular; -
FIG. 2 shows the actuator where the actuator gripper device is in engagement with a component; -
FIG. 3 shows the actuator after the component is displaced; -
FIG. 4 shows a section of the actuator to a larger scale; -
FIG. 5 shows a cross-section VI-VI inFIG. 4 ; and -
FIG. 6 shows a section of the actuator in an alternative embodiment. - In the drawings the
reference numeral 1 indicates an actuator connected to awireline tractor 2 positioned in a well tubular 4. The well tubular 4 has acentral axis 6. - The
actuator 1 comprises adriver 8 for example in the form of an electric or hydraulic power unit which in a per se known way is arranged to be able to displace a workingorgan 10 in a direction along the well tubular 4central axis 6. - The working
organ 10 is in its free end portion provided with asteering guide 12 arranged to be able to steer theactuator 1 during displacing of the well tubular 4. - Four outwardly
curved leaf springs 14 are at theirfirst end portions 16 articulateably connected to a to the workingorgan 10 fixedly connectedfirst attachment 18, seeFIGS. 3 and 4 . In their opposingsecond end portions 20 theleaf springs 14 are articulateably connected to asecond attachment 22, which is displaceable on the workingorgan 10. - The
leaf springs 14 are at their mid portion given one eachgripping device 24 in the form of agripping bulb 26 arranged to be able to engage thegripping recesses 30 of acomponent 28, seeFIG. 2 . Thegripping device 24 is also provided withsteering bulb 32 arranged to be able to prevent that thegripping device 24 unintentionally engages during displacement in the well tubular 4. - The
steering bulb 12 must be placed in asteering recess 34 in thecomponent 28 for the gripping bulb to engage thegripping recesses 30. - The
rear portion 36 of thegripping device 24 has anangle 38 with thecentral axis 6 being less than 90 degrees and preferably less than 45 degrees. - A releasing
device 40 in the form of a sleeve encircles theworking organ 10. Thereleasing device 40 is connected to thedriver 8. When theleaf springs 14 are pulled into the releasingdevice 40, seeFIG. 1 , thegripping devices 24 are positioned in their passive position near thecentral axis 6. When theleaf springs 14 are displaced at least partly out of the releasingdevice 40, thegripping devices 24 are positioned in their active position, seeFIGS. 2 and 3 . - In
FIG. 1 the actuator is being displaced through arestriction 42 in the well tubular 4. Theleaf springs 14 are positioned pushed into the releasingdevice 40. - In
FIG. 2 theleaf springs 14 are displaced out of the releasingdevice 40 by means of the workingorgan 10. Theleaf springs 14 have displaced thegripping devices 24 into engagement with thecomponent 28. - In
FIG. 3 the workingorgan 10 has displaced thegripping devices 24 and thereby thecomponent 28 inward into the well tubular 4. - By pulling the
leaf springs 14 into the releasingdevice 40 thegripping devices 24 are deactivated whereafter theactuator 1 may be displaced back through therestriction 42. - Should the
actuator 1driver 8 fail, the actuator may still be pulled out through therestriction 42. If theactuator 1 is pulled out through therestriction 42 without thegripping devices 24 being brought back to their passive position, then thegripping devices 24 will be resiliently displaced out from their engagement with thecomponent 28, whereafter theleaf springs 14 abut therestriction 42. This causes thegripping devices 24 to be displaced in a direction toward thecentral axis 6 of the well tubular 4. Due to its shape thegripping device 24 will be displaced further in the same direction when it abuts therestriction 42. - In an alternative embodiment, see
FIG. 6 , thegripping devices 24 are positioned on the free end portions of their respective springs 44. The springs 44 are fixedly connected to thefirst attachment 18. This simplified embodiment does however not have the same strength as the preferred embodiment, but may in some cases be relevant due to its reduced construction length.
Claims (7)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20084926A NO333965B1 (en) | 2008-11-25 | 2008-11-25 | Downhole actuator |
NO20084926 | 2008-11-25 | ||
PCT/NO2009/000393 WO2010062186A1 (en) | 2008-11-25 | 2009-11-18 | Down hole actuator |
Publications (3)
Publication Number | Publication Date |
---|---|
US20110220346A1 US20110220346A1 (en) | 2011-09-15 |
US20120090832A9 true US20120090832A9 (en) | 2012-04-19 |
US8967246B2 US8967246B2 (en) | 2015-03-03 |
Family
ID=42225881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/130,489 Expired - Fee Related US8967246B2 (en) | 2008-11-25 | 2009-11-18 | Downhole actuator |
Country Status (6)
Country | Link |
---|---|
US (1) | US8967246B2 (en) |
EP (1) | EP2352899B1 (en) |
BR (1) | BRPI0921177B1 (en) |
EA (1) | EA019670B1 (en) |
NO (1) | NO333965B1 (en) |
WO (1) | WO2010062186A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10208549B2 (en) * | 2013-11-21 | 2019-02-19 | Qinterra Technologies As | Activating tool for displacing of a component in a well tube and method for adjusting the activating tool |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6464003B2 (en) | 2000-05-18 | 2002-10-15 | Western Well Tool, Inc. | Gripper assembly for downhole tractors |
US9447648B2 (en) | 2011-10-28 | 2016-09-20 | Wwt North America Holdings, Inc | High expansion or dual link gripper |
US9022440B2 (en) * | 2012-11-16 | 2015-05-05 | Baker Hughes Incorporated | Fishing guide for directing a skewed fish in a wellbore |
US9488020B2 (en) | 2014-01-27 | 2016-11-08 | Wwt North America Holdings, Inc. | Eccentric linkage gripper |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4830109A (en) * | 1987-10-28 | 1989-05-16 | Cameron Iron Works Usa, Inc. | Casing patch method and apparatus |
US5305833A (en) * | 1993-02-16 | 1994-04-26 | Halliburton Company | Shifting tool for sliding sleeve valves |
US5361844A (en) * | 1993-06-15 | 1994-11-08 | Gotco International, Inc. | Well fishing grapple assembly and method abstract |
US5413173A (en) * | 1993-12-08 | 1995-05-09 | Ava International Corporation | Well apparatus including a tool for use in shifting a sleeve within a well conduit |
US6059336A (en) * | 1997-12-22 | 2000-05-09 | Kvaernet Oilfield Products | Hydraulically actuated mechanical coupler |
US6827148B2 (en) * | 2002-05-22 | 2004-12-07 | Weatherford/Lamb, Inc. | Downhole tool for use in a wellbore |
US20090145604A1 (en) * | 2007-12-05 | 2009-06-11 | Ragab Emad H | System and Method for Retrieving a Well Tool from a Wellbore |
US20100116492A1 (en) * | 2008-11-07 | 2010-05-13 | Wood Group Logging Services, Inc. | Locator tool and methods of use |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4436152A (en) * | 1982-09-24 | 1984-03-13 | Otis Engineering Corporation | Shifting tool |
US5242201A (en) * | 1991-08-26 | 1993-09-07 | Beeman Robert S | Fishing tool |
US5678633A (en) * | 1995-01-17 | 1997-10-21 | Baker Hughes Incorporated | Shifting tool |
US7516782B2 (en) * | 2006-02-09 | 2009-04-14 | Schlumberger Technology Corporation | Self-anchoring device with force amplification |
-
2008
- 2008-11-25 NO NO20084926A patent/NO333965B1/en not_active IP Right Cessation
-
2009
- 2009-11-18 BR BRPI0921177-2A patent/BRPI0921177B1/en not_active IP Right Cessation
- 2009-11-18 EA EA201190044A patent/EA019670B1/en not_active IP Right Cessation
- 2009-11-18 EP EP09829369.9A patent/EP2352899B1/en active Active
- 2009-11-18 WO PCT/NO2009/000393 patent/WO2010062186A1/en active Application Filing
- 2009-11-18 US US13/130,489 patent/US8967246B2/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4830109A (en) * | 1987-10-28 | 1989-05-16 | Cameron Iron Works Usa, Inc. | Casing patch method and apparatus |
US5305833A (en) * | 1993-02-16 | 1994-04-26 | Halliburton Company | Shifting tool for sliding sleeve valves |
US5361844A (en) * | 1993-06-15 | 1994-11-08 | Gotco International, Inc. | Well fishing grapple assembly and method abstract |
US5413173A (en) * | 1993-12-08 | 1995-05-09 | Ava International Corporation | Well apparatus including a tool for use in shifting a sleeve within a well conduit |
US6059336A (en) * | 1997-12-22 | 2000-05-09 | Kvaernet Oilfield Products | Hydraulically actuated mechanical coupler |
US6827148B2 (en) * | 2002-05-22 | 2004-12-07 | Weatherford/Lamb, Inc. | Downhole tool for use in a wellbore |
US20090145604A1 (en) * | 2007-12-05 | 2009-06-11 | Ragab Emad H | System and Method for Retrieving a Well Tool from a Wellbore |
US20100116492A1 (en) * | 2008-11-07 | 2010-05-13 | Wood Group Logging Services, Inc. | Locator tool and methods of use |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10208549B2 (en) * | 2013-11-21 | 2019-02-19 | Qinterra Technologies As | Activating tool for displacing of a component in a well tube and method for adjusting the activating tool |
Also Published As
Publication number | Publication date |
---|---|
EA201190044A1 (en) | 2012-02-28 |
BRPI0921177B1 (en) | 2019-07-09 |
WO2010062186A1 (en) | 2010-06-03 |
US20110220346A1 (en) | 2011-09-15 |
US8967246B2 (en) | 2015-03-03 |
EP2352899A4 (en) | 2017-07-05 |
EP2352899B1 (en) | 2021-02-24 |
EP2352899A1 (en) | 2011-08-10 |
NO20084926L (en) | 2010-05-26 |
NO333965B1 (en) | 2013-10-28 |
BRPI0921177A2 (en) | 2018-10-16 |
WO2010062186A9 (en) | 2011-06-16 |
EA019670B1 (en) | 2014-05-30 |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: AKER WELL SERVICES AS, NORWAY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OSALAND, ESPEN;HAUGLAND, LASSE;REEL/FRAME:026333/0364 Effective date: 20110503 |
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AS | Assignment |
Owner name: ALTUS INTERVENTION AS, NORWAY Free format text: CHANGE OF NAME;ASSIGNOR:WELL INTERVENTION SERVICES AS;REEL/FRAME:033705/0756 Effective date: 20140428 Owner name: WELL INTERVENTION SERVICES AS, NORWAY Free format text: CHANGE OF NAME;ASSIGNOR:AKER WELL SERVICE AS;REEL/FRAME:033697/0804 Effective date: 20140123 |
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Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
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