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US20100006302A1 - Locking arrangement to store setting forces - Google Patents

Locking arrangement to store setting forces Download PDF

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Publication number
US20100006302A1
US20100006302A1 US12/171,435 US17143508A US2010006302A1 US 20100006302 A1 US20100006302 A1 US 20100006302A1 US 17143508 A US17143508 A US 17143508A US 2010006302 A1 US2010006302 A1 US 2010006302A1
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US
United States
Prior art keywords
housing
arrangement
jam members
jam
holding configuration
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
US12/171,435
Inventor
Michael H. Johnson
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.)
Baker Hughes Holdings LLC
Original Assignee
Baker Hughes Inc
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 Baker Hughes Inc filed Critical Baker Hughes Inc
Priority to US12/171,435 priority Critical patent/US20100006302A1/en
Assigned to BAKER HUGHES INCORPORATED reassignment BAKER HUGHES INCORPORATED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JOHNSON, MICHAEL H.
Priority to PCT/US2009/049683 priority patent/WO2010005893A2/en
Priority to GB1020826A priority patent/GB2473973A/en
Publication of US20100006302A1 publication Critical patent/US20100006302A1/en
Priority to NO20101745A priority patent/NO20101745L/en
Abandoned legal-status Critical Current

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    • 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

Definitions

  • a locking arrangement to store setting forces including a housing, one or more recesses in the housing, one or more jam members in operable communication with one or more of the recesses, and an incremental setting force holding configuration receivable at the housing and placable in operable communication with one or more of the one or more jam members.
  • the one or more jam members positioned within the housing to assure that at least one of the jam members will engage the incremental setting force holding configuration with substantially no backlash.
  • a backlash reduction arrangement including a housing, one or more recesses in the housing, one or more jam members in operable communication with one or more of the recesses, and an incremental holding configuration receivable at the housing and placable in operable communication with one or more of the one or more jam members.
  • the one or more jam members positioned within the housing to assure that at least one of the jam members will engage the incremental holding configuration with substantially no backlash.
  • a method for setting a downhole tool including urging an incremental setting force holding configuration to move relative to a housing with a setting force initiator.
  • the housing having one or more jam members disposed thereat and in operable communication with the holding configuration, engaging at least one of the one or more jam members with the holding configuration, releasing the setting force initiator, and maintaining the setting force on the downhole tool with the holding configuration engaged with the one or more jam members of the housing.
  • FIG. 1 is a schematic representation of one embodiment of the arrangement as disclosed herein.
  • FIG. 2 is a schematic representation of another embodiment of the arrangement as disclosed herein.
  • FIG. 3 is a schematic view of one ball pattern in a lock housing.
  • FIG. 4 is a schematic view of another ball pattern in a lock housing.
  • a first embodiment of the locking arrangement to store setting forces 10 imparted by a setting force initiator be it mechanical, hydraulic, hydrostatic, electrical, etc. is illustrated.
  • a housing 12 may be a dedicated housing or simply a component of another tool that is fortuitously located to engage a wicker thread or other incremental setting force holding configuration 13 .
  • a thread 14 is illustrated by way of example.
  • the thread has a helix angle and in other embodiments the thread presents merely as ratchet teeth. This should be appreciated from FIGS. 1 and 2 , which while both do exhibit helix angles, each could simply be shifted such that the thread exists in individual rings rather than one helically extending thread.
  • the housing 12 includes one or more receptacles 16 therein that are each sized to operably communicate with a jam member 18 .
  • the jam member 18 is illustrated as a ball but it is to be understood that this is exemplary only and that other configurations of jam member 18 are substitutable therefore.
  • the jam member 18 could be configured as a rod with an ogive to interact with the thread 14 . What is required is a configuration that will allow the passage of the thread in one direction whether that passage be axial (requiring momentary retraction of the jam member(s) 18 ) or rotational on the part of the thread, and then an inhibition of axial movement of the thread in a direction opposite the force setting direction.
  • FIG. 1 Focusing upon the configuration of a ball as illustrated for purposes of discussion of the operation of the Locking Arrangement disclosed herein, it will be appreciated that four balls 18 are illustrated in FIG. 1 substantially orthogonally positioned relative to a longitudinal axis of the locking arrangement. In such configuration, some but not all of the balls will engage the thread 14 either due to the action of a biasing member such as a resilient member 20 which may be for example an elastomeric or metallic spring that is compressed by the ball as a thread tip 22 of the thread 14 passes the ball, thereby forcing the ball 18 to move radially outwardly, or simply due to gravity (where the arrangement 10 is employed in a horizontal or deviated wellbore).
  • a biasing member such as a resilient member 20 which may be for example an elastomeric or metallic spring that is compressed by the ball as a thread tip 22 of the thread 14 passes the ball, thereby forcing the ball 18 to move radially outwardly, or simply due to gravity (where the arrangement 10 is employed in a horizontal or deviated
  • Balls 18 that are aligned with thread tips 22 will provide little locking capability other than a small amount of friction. Balls that drop into (via gravity), or are otherwise urged into thread troughs 26 to at least some degree, provide substantial force locking capability. This is because at the contact site, in order for the thread 14 to move axially the ball would have to move back into the housing 12 . Since the thread flank intended to limit movement of the thread 14 when in contact with a ball is by design, insufficient to act as a ramp for the ball 18 to ride up, the ball acts as a solid structural member against the specified axial movement.
  • the flank 24 should have a half angle of about 20 degrees or less, including negative angles. It is further to be noted that because the thread 14 itself has a different position relative to the housing 12 depending upon where one views the thread, and the balls are fixed in position longitudinally relative to the housing, it is assured that at least one and likely at least some of the balls will drop into a trough 26 in a position that will effectively remove or at least substantially reduce potential backlash in the system. This is important in precision set devices such as metal seals for example because backlash is associated with reduced setting force and reduced setting force is directly related to reduced pressure holding capability. Reduced pressure holding capability is of course undesirable.
  • FIG. 2 it will be apparent that the general concept discussed with respect to FIG. 1 is maintained but with a finer thread and more balls. All of the alternates noted above apply equally to FIG. 2 .
  • the balls 18 are positioned along a helix angle themselves.
  • the angle may be the same as that of the thread 14 or may be somewhat different than the angle of the thread 14 .
  • the helix angle of the balls 18 is the same as that of the thread. It will be appreciated by one of ordinary skill in the art having been exposed to the foregoing that with the balls arranged in such condition is unlikely to yield any reduction in backlash. This is true but with the balls positioned as illustrated in FIG. 3 , such reduction is indeed achieved.
  • the balls 18 do indeed have the same helix angle as a thread to be engaged therewith but the balls 18 are offset one from the next such that balls 1 , 3 , 5 , 7 etc.
  • a pattern of balls 18 that is wholly unrelated to the thread 14 of the other incremental setting force holding configuration 13 .
  • the configuration still achieves the desired result of elimination of or reduction of backlash because of the plurality of balls, some of them will move into the thread trough 24 of the member 13 and therefore will hold the setting force at the maximal position achieved by the original setting force imparter (not shown).

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  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Casings For Electric Apparatus (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Connection Of Plates (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

Abstract

A locking arrangement to store setting forces including a housing, one or more recesses in the housing, one or more jam members in operable communication with one or more of the recesses, and an incremental setting force holding configuration receivable at the housing and placable in operable communication with one or more of the one or more jam members. A backlash reduction arrangement including a housing, one or more recesses in the housing, one or more jam members in operable communication with one or more of the recesses, and an incremental holding configuration receivable at the housing and placable in operable communication with one or more of the one or more jam members. The one or more jam members positioned within the housing to assure that at least one of the jam members will engage the incremental holding configuration with substantially no backlash. A method for setting a downhole tool.

Description

  • In the hydrocarbon recovery industry there are many tools that are actuated remotely by mechanical force, hydraulic force, hydrostatic force, etc. Each of these forces function well for the intended purpose of actuation. In situations where the force is to be removed from the tool actuated thereby, and the tool intended to remain actuated, various arrangements have been used to retain or lock the actuation force into the tool actuated. One prior art device commonly used is a body lock ring. One of ordinary skill in the art will be very familiar with body lock rings as they are oft used in the industry. While the rings work reliably and simply and are therefore ubiquitous, more modern actuations can sometimes require greater precision in actuation force retention. Precision in the actuation force retaining characteristics of a body lock ring can be improved by utilizing a finer thread but load carrying capacity is proportionally reduced as the thread size diminishes. Higher load applications are consequently limited to retention with less precision. In view of the constant desire for increased precision in all arts, including the hydrocarbon recovery art, a force retention arrangement having greater precision while also providing significant load capacity would be well received by the art.
    • SUMMARY
  • A locking arrangement to store setting forces including a housing, one or more recesses in the housing, one or more jam members in operable communication with one or more of the recesses, and an incremental setting force holding configuration receivable at the housing and placable in operable communication with one or more of the one or more jam members. The one or more jam members positioned within the housing to assure that at least one of the jam members will engage the incremental setting force holding configuration with substantially no backlash.
  • A backlash reduction arrangement including a housing, one or more recesses in the housing, one or more jam members in operable communication with one or more of the recesses, and an incremental holding configuration receivable at the housing and placable in operable communication with one or more of the one or more jam members. The one or more jam members positioned within the housing to assure that at least one of the jam members will engage the incremental holding configuration with substantially no backlash.
  • A method for setting a downhole tool including urging an incremental setting force holding configuration to move relative to a housing with a setting force initiator. The housing having one or more jam members disposed thereat and in operable communication with the holding configuration, engaging at least one of the one or more jam members with the holding configuration, releasing the setting force initiator, and maintaining the setting force on the downhole tool with the holding configuration engaged with the one or more jam members of the housing.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • Referring now to the drawings wherein like elements are numbered alike in the several Figures:
  • FIG. 1 is a schematic representation of one embodiment of the arrangement as disclosed herein.
  • FIG. 2 is a schematic representation of another embodiment of the arrangement as disclosed herein.
  • FIG. 3 is a schematic view of one ball pattern in a lock housing.
  • FIG. 4 is a schematic view of another ball pattern in a lock housing.
    •  DETAILED DESCRIPTION
  • Referring to FIG. 1, a first embodiment of the locking arrangement to store setting forces 10 imparted by a setting force initiator be it mechanical, hydraulic, hydrostatic, electrical, etc. is illustrated. In this embodiment, a housing 12 may be a dedicated housing or simply a component of another tool that is fortuitously located to engage a wicker thread or other incremental setting force holding configuration 13. In FIG. 1 a thread 14 is illustrated by way of example. In some embodiments the thread has a helix angle and in other embodiments the thread presents merely as ratchet teeth. This should be appreciated from FIGS. 1 and 2, which while both do exhibit helix angles, each could simply be shifted such that the thread exists in individual rings rather than one helically extending thread.
  • The housing 12 includes one or more receptacles 16 therein that are each sized to operably communicate with a jam member 18. In the Figure, the jam member 18 is illustrated as a ball but it is to be understood that this is exemplary only and that other configurations of jam member 18 are substitutable therefore. For example, the jam member 18 could be configured as a rod with an ogive to interact with the thread 14. What is required is a configuration that will allow the passage of the thread in one direction whether that passage be axial (requiring momentary retraction of the jam member(s) 18) or rotational on the part of the thread, and then an inhibition of axial movement of the thread in a direction opposite the force setting direction. Focusing upon the configuration of a ball as illustrated for purposes of discussion of the operation of the Locking Arrangement disclosed herein, it will be appreciated that four balls 18 are illustrated in FIG. 1 substantially orthogonally positioned relative to a longitudinal axis of the locking arrangement. In such configuration, some but not all of the balls will engage the thread 14 either due to the action of a biasing member such as a resilient member 20 which may be for example an elastomeric or metallic spring that is compressed by the ball as a thread tip 22 of the thread 14 passes the ball, thereby forcing the ball 18 to move radially outwardly, or simply due to gravity (where the arrangement 10 is employed in a horizontal or deviated wellbore). Some of the balls, it will be appreciated will end up aligned with the thread tip 22 and therefore not engage a thread flank 24. Balls 18 that are aligned with thread tips 22 will provide little locking capability other than a small amount of friction. Balls that drop into (via gravity), or are otherwise urged into thread troughs 26 to at least some degree, provide substantial force locking capability. This is because at the contact site, in order for the thread 14 to move axially the ball would have to move back into the housing 12. Since the thread flank intended to limit movement of the thread 14 when in contact with a ball is by design, insufficient to act as a ramp for the ball 18 to ride up, the ball acts as a solid structural member against the specified axial movement. In order to ensure that the ball or balls do not climb the flank 24 thereby receding into the respective receptacle 16, the flank 24 should have a half angle of about 20 degrees or less, including negative angles. It is further to be noted that because the thread 14 itself has a different position relative to the housing 12 depending upon where one views the thread, and the balls are fixed in position longitudinally relative to the housing, it is assured that at least one and likely at least some of the balls will drop into a trough 26 in a position that will effectively remove or at least substantially reduce potential backlash in the system. This is important in precision set devices such as metal seals for example because backlash is associated with reduced setting force and reduced setting force is directly related to reduced pressure holding capability. Reduced pressure holding capability is of course undesirable.
  • Referring to FIG. 2, it will be apparent that the general concept discussed with respect to FIG. 1 is maintained but with a finer thread and more balls. All of the alternates noted above apply equally to FIG. 2.
  • In another embodiment of the arrangement 10, the balls 18 are positioned along a helix angle themselves. The angle may be the same as that of the thread 14 or may be somewhat different than the angle of the thread 14. For purposes of clarity we will assume that the helix angle of the balls 18 is the same as that of the thread. It will be appreciated by one of ordinary skill in the art having been exposed to the foregoing that with the balls arranged in such condition is unlikely to yield any reduction in backlash. This is true but with the balls positioned as illustrated in FIG. 3, such reduction is indeed achieved. In FIG. 3, the balls 18 do indeed have the same helix angle as a thread to be engaged therewith but the balls 18 are offset one from the next such that balls 1,3,5,7 etc. will form one helix while balls 2,4,6,8, etc. will form another helix. Both sets of balls use the same angle but due to the offset, backlash is at least minimized and in some cases eliminated. Backlash is eliminated because the configuration provides double flank contact at each thread turn. Frictional factors are tolerable because of the relatively small contact patch made between the balls and the thread and because the balls are capable of rotating movement within their individual recesses 16.
  • In yet another embodiment, referring to FIG. 4, a pattern of balls 18 that is wholly unrelated to the thread 14 of the other incremental setting force holding configuration 13. The configuration still achieves the desired result of elimination of or reduction of backlash because of the plurality of balls, some of them will move into the thread trough 24 of the member 13 and therefore will hold the setting force at the maximal position achieved by the original setting force imparter (not shown).
  • While preferred embodiments have been shown and described, modifications and substitutions may be made thereto without departing from the spirit and scope of the invention. Accordingly, it is to be understood that the present invention has been described by way of illustrations and not limitation.

Claims (20)

1. A locking arrangement to store setting forces comprising:
a housing;
one or more recesses in the housing;
one or more jam members in operable communication with one or more of the recesses;
an incremental setting force holding configuration receivable at the housing and placable in operable communication with one or more of the one or more jam members, the one or more jam members positioned within the housing to assure that at least one of the jam members will engage the incremental setting force holding configuration with substantially no backlash.
2. The arrangement as claimed in claim 1 wherein the one or more jam members are balls.
3. The arrangement as claimed in claim 1 wherein the one or more jam members are configured as a rod and an ogive.
4. The arrangement as claimed in claim 1 wherein the one or more recesses include a biasing member to urge the jam member out of the recess and into operable communication with the incremental setting force holding configuration.
5. The arrangement as claimed in claim 4 wherein the biasing member is a resilient member.
6. The arrangement as claimed in claim 4 wherein the biasing member is a spring.
7. The arrangement as claimed in claim 1 wherein the incremental setting force holding configuration is a threaded member.
8. The arrangement as claimed in claim 1 wherein the incremental setting force holding configuration is a ratcheting member.
9. The arrangement as claimed in claim 1 wherein the incremental setting force holding configuration includes a thread having a flank half angle on a flank opposing the direction of setting force of about 20 degrees or less, including negative angles.
10. The arrangement as claimed in claim 1 wherein the one or more jam members are arranged orthogonally about the housing.
11. The arrangement as claimed in claim 1 wherein the one or more jam members are arranged helically about the housing.
12. The arrangement as claimed in claim 11 wherein the one or more jam members arranged helically are offset from a common helix angle among them.
13. The arrangement as claimed in claim 12 wherein the offset is effected with one of the one or more jam members to one side of the common helix angle and the next jam member of he one or more jam members is offset to an opposite side of the common helix angle.
14. The arrangement as claimed in claim 1 wherein the one or more jam members are arranged in a regular pattern about the housing.
15. The arrangement as claimed in claim 1 wherein the one or more jam members are arranged in an irregular pattern about the housing.
16. A backlash reduction arrangement comprising:
a housing;
one or more recesses in the housing;
one or more jam members in operable communication with one or more of the recesses;
an incremental holding configuration receivable at the housing and placable in operable communication with one or more of the one or more jam members, the one or more jam members positioned within the housing to assure that at least one of the jam members will engage the incremental holding configuration with substantially no backlash.
17. A method for setting a downhole tool comprising:
urging an incremental setting force holding configuration to move relative to a housing with a setting force initiator, the housing having one or more jam members disposed thereat and in operable communication with the holding configuration;
engaging at least one of the one or more jam members with the holding configuration;
releasing the setting force initiator
maintaining the setting force on the downhole tool with the holding configuration engaged with the one or more jam members of the housing.
18. The method as claimed in claim 17 wherein the engaging is by gravity.
19. The method as claimed in claim 17 wherein the engaging is by biasing member.
20. The method as claimed in claim 17 wherein the maintaining is without backlash.
US12/171,435 2008-07-11 2008-07-11 Locking arrangement to store setting forces Abandoned US20100006302A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US12/171,435 US20100006302A1 (en) 2008-07-11 2008-07-11 Locking arrangement to store setting forces
PCT/US2009/049683 WO2010005893A2 (en) 2008-07-11 2009-07-06 Locking arrangement to store setting forces
GB1020826A GB2473973A (en) 2008-07-11 2009-07-06 Locking arrangement to store setting forces
NO20101745A NO20101745L (en) 2008-07-11 2010-12-13 Laser arrangement for storing set forces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/171,435 US20100006302A1 (en) 2008-07-11 2008-07-11 Locking arrangement to store setting forces

Publications (1)

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US20100006302A1 true US20100006302A1 (en) 2010-01-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
US12/171,435 Abandoned US20100006302A1 (en) 2008-07-11 2008-07-11 Locking arrangement to store setting forces

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US (1) US20100006302A1 (en)
GB (1) GB2473973A (en)
NO (1) NO20101745L (en)
WO (1) WO2010005893A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2011202215B2 (en) * 2010-06-22 2013-02-07 Halliburton Energy Services, Inc. Method and apparatus for detecting deep conductive pipe
WO2021178212A1 (en) * 2020-03-06 2021-09-10 Baker Hughes Oilfield Operations Llc Mechanical stepper

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3296880A (en) * 1965-10-18 1967-01-10 Maroth Engineering Co Radial roller anti-friction transmission
US4022076A (en) * 1976-02-17 1977-05-10 Norco, Inc. Anti-backlash automatically reversing nut for a diamond thread screw
US5339894A (en) * 1992-04-01 1994-08-23 Stotler William R Rubber seal adaptor
US5680795A (en) * 1995-07-05 1997-10-28 Norco Inc. Mechanical drive assembly incorporating counter-spring biassed radially-adjustable rollers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6035580B2 (en) * 1981-04-28 1985-08-15 株式会社 山祥 Non-circulating ball screw
JPS62171558A (en) * 1986-01-24 1987-07-28 Fuji Electric Co Ltd Ball screw shaft fixing device
US4978261A (en) * 1989-12-08 1990-12-18 Wright Iii Charles O Quill stop

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3296880A (en) * 1965-10-18 1967-01-10 Maroth Engineering Co Radial roller anti-friction transmission
US4022076A (en) * 1976-02-17 1977-05-10 Norco, Inc. Anti-backlash automatically reversing nut for a diamond thread screw
US5339894A (en) * 1992-04-01 1994-08-23 Stotler William R Rubber seal adaptor
US5680795A (en) * 1995-07-05 1997-10-28 Norco Inc. Mechanical drive assembly incorporating counter-spring biassed radially-adjustable rollers

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2011202215B2 (en) * 2010-06-22 2013-02-07 Halliburton Energy Services, Inc. Method and apparatus for detecting deep conductive pipe
WO2021178212A1 (en) * 2020-03-06 2021-09-10 Baker Hughes Oilfield Operations Llc Mechanical stepper
US11466537B2 (en) * 2020-03-06 2022-10-11 Baker Hughes Oilfield Operations Llc Mechanical stepper
US20220403712A1 (en) * 2020-03-06 2022-12-22 Baker Hughes Oilfield Operations Llc Mechanical stepper
US11613960B2 (en) * 2020-03-06 2023-03-28 Baker Hughes Oilfield Operations Llc Mechanical stepper
AU2021229391B2 (en) * 2020-03-06 2023-08-10 Baker Hughes Oilfield Operations Llc Mechanical stepper
AU2023258433B2 (en) * 2020-03-06 2025-04-17 Baker Hughes Oilfield Operations Llc Mechanical stepper

Also Published As

Publication number Publication date
WO2010005893A3 (en) 2010-03-04
WO2010005893A2 (en) 2010-01-14
GB201020826D0 (en) 2011-01-19
GB2473973A (en) 2011-03-30
NO20101745L (en) 2010-12-13

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AS Assignment

Owner name: BAKER HUGHES INCORPORATED, TEXAS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JOHNSON, MICHAEL H.;REEL/FRAME:021379/0931

Effective date: 20080721

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION