US20100206552A1 - Actuator Device - Google Patents

Actuator Device Download PDF

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Publication number
US20100206552A1
US20100206552A1 US12/672,871 US67287108A US2010206552A1 US 20100206552 A1 US20100206552 A1 US 20100206552A1 US 67287108 A US67287108 A US 67287108A US 2010206552 A1 US2010206552 A1 US 2010206552A1
Authority
US
United States
Prior art keywords
mandrel
actuator
piston
locking
actuator 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
US12/672,871
Other languages
English (en)
Inventor
Vidar Wollum
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.)
Pipetech International AS
Original Assignee
Pipetech International AS
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 Pipetech International AS filed Critical Pipetech International AS
Assigned to PIPETECH INTERNATIONAL AS reassignment PIPETECH INTERNATIONAL AS ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WOLLUM, VIDAR
Publication of US20100206552A1 publication Critical patent/US20100206552A1/en
Abandoned legal-status Critical Current

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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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
    • E21B17/073—Telescoping joints for varying drill string lengths; Shock absorbers with axial rotation
    • 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
    • E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
    • E21B23/0418—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion specially adapted for locking the tools in landing nipples or recesses
    • 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
    • E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
    • E21B23/042—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion using a single piston or multiple mechanically interconnected pistons
    • 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
    • E21B23/14—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells

Definitions

  • This invention relates to an actuator. More particularly, it relates to an actuator for moving a tool within a borehole in the ground, the actuator being positioned between a coiled tubing and a tool, and the actuator being arranged to move the tool at a substantially constant axial speed.
  • the actuator includes an actuator housing with an internal cylinder jacket and an end wall, there being arranged at the end wall a releasable nut which engages, in its active position, a threaded, axially bored-through mandrel, the mandrel projecting, axially movable, through an opening in the end wall.
  • a motor is arranged to rotate the mandrel about its longitudinal axis via a non-circular, axially bored-through shaft.
  • a locking piston which is movable within the cylinder jacket, surrounds the mandrel, the locking piston being arranged to lock, when it is in its end position nearest to the end wall, the nut in its active position.
  • An inner through opening in the wall of the shaft communicates with a first space in the actuator housing upstream relative to the locking piston when the mandrel is in its retracted position within the actuator housing, whereas an outer through opening in the wall of the mandrel communicates with a second space between the locking piston and the end wall when the mandrel is in its extended end position.
  • the reason for this irregular rate of conveyance may be friction between the coiled tubing and borehole wall, obstructions in the borehole or curved boreholes, in which the coiled tubing changes the radius of curvature as it is being fed in. These conditions may result in a so-called “stick slip” effect, in which the tool stops, only to be moved, next, at a relatively high speed.
  • the invention has for its object to remedy or reduce at least one of the drawbacks of the prior art.
  • An actuator in accordance with the invention for moving a tool within a borehole in the ground, the actuator being positioned between a coiled tubing and a tool, and the actuator being arranged to move the tool at a substantially constant axial speed is characterized by the actuator including an actuator housing with an internal cylinder jacket and an end wall, a releasable nut being arranged at the end wall, engaging, in its active position, a threaded, axially bored-through mandrel, the mandrel projecting, axially movable, through an opening in the end wall, and a motor being arranged to rotate the mandrel about its longitudinal axis via a non-circular, axially bored-through shaft, and a locking piston, movable in the cylinder jacket, surrounding the mandrel, the locking piston being arranged to lock, when it is in its end position nearest to the end wall, the nut in its active position, and an inner through opening in the wall of the shaft communicating with a first space in the actuator housing up
  • Pressurized fluid flows via the inner opening into the first space, moving the locking piston up to the nut, where the locking piston causes the nut to be moved from its inactive position into its active position, engaging the threads of the mandrel.
  • the motor thereby feeds the mandrel out of its retracted position, whereby the liquid flow via the inner opening is shut off.
  • the outer opening is uncovered, whereby pressurized fluid may flow into the second space.
  • the locking piston is moved away from the nut which is thereby moved back into its inactive position.
  • the mandrel is provided with a piston which is sealingly movable within the cylinder jacket.
  • the fluid pressure moves the locking piston and the piston together with the mandrel in the direction of their initial positions.
  • the further movement of the mandrel into its initial position may take place by means of, for example, a force directed at the actuator from the tool.
  • the mandrel may be connected to a spring or gas spring which is arranged to move the mandrel in an inward direction within the actuator housing.
  • mandrel is moved inwards within the actuator housing by means of an external displacing force.
  • the locking piston is provided with releasable locking dogs fitting complementarily into a locking groove in the cylinder jacket, the piston being provided with a releaser which is arranged to release the locking dogs when the piston is near the locking piston.
  • the motor is typically driven by means of pressurized fluid, but electric operation may also be applicable under certain conditions. It is advantageous that the motor is in the actuator housing, but the motor may also project, at least partially, from the actuator housing.
  • the device according to the invention provides a relatively simple actuator, in which the mandrel is moved automatically outwards at a constant rate, subsequently returning at a relatively high speed before the feeding out of the mandrel is repeated again.
  • FIG. 1 shows, partially in section, an actuator in accordance with the invention which is connected between a coiled tubing and a tool coupling;
  • FIG. 2 shows, on a somewhat larger scale, the actuator in its initial position
  • FIG. 3 shows the same as FIG. 2 , but here a locking piston is moving within the actuator
  • FIG. 4 shows the actuator after the locking piston has moved the nut of the actuator into its active position
  • FIG. 5 shows the mandrel of the actuator as it is being fed out
  • FIG. 6 shows the actuator as the mandrel is in its projecting position
  • FIG. 7 shows the actuator after the locking piston has been moved from its locking position relative to the nut
  • FIG. 8 shows a section III-III of FIG. 3 .
  • the reference numeral 1 indicates an actuator which is fitted between a coiled tubing 2 and a tool, not shown, by means of a tool holder 4 .
  • the actuator 1 includes an actuator housing 6 which is provided with an internal cylinder jacket 8 and an end wall 10 at its end portion facing away from the coiled tubing 2 .
  • the end wall 10 is formed with a centric through opening 12 .
  • a pressure-fluid-operated motor 14 with a through centre opening 16 is connected to the actuator housing 6 and the coiled tubing 2 by means of an adapter 18 .
  • a nut housing 20 including a number of nut segments 22 pivotal in the nut housing 20 .
  • Each nut segment 22 is pivotal about a nut axle 24 between a passive position, see FIG. 2 , and an active position, see FIG. 4 .
  • the nut segments 22 are held in their passive positions by an annular spring 26 . Together the nut segments 22 constitute a nut 28 .
  • the nut 28 In its active position the nut 28 is in engagement with a threaded, axially bored-through mandrel 30 .
  • the mandrel 30 projects, axially movable, through the opening 12 in the end wall 10 , the mandrel 30 being connected to the tool holder 4 .
  • the mandrel 30 is provided with a piston 32 which is sealingly movable within the cylinder jacket 8 .
  • a through opening 34 of the mandrel 30 is along a portion of the opening 34 given a hexagonal shape, see FIG. 8 , complementarily matching an axially bored-through shaft 36 .
  • the shaft 36 is rotated about its longitudinal axis by the motor 14 .
  • An inner opening 40 through the wall of the shaft 36 corresponds with a bore 42 in the piston 32 when the mandrel 30 is in its retracted position, see FIG. 2 .
  • the mouth of the bore 42 is on the side of the piston 32 facing the nut 28 .
  • a valve sleeve 44 is moved sealingly in over the inner opening 40 by means of a spring 46 as the mandrel 30 is moved away from its retracted position, see FIG. 5 .
  • a locking piston 48 which is movable within the cylinder jacket 8 surrounds the mandrel 30 .
  • the locking piston 48 On its side facing the nut 28 , the locking piston 48 is provided with an externally conical sleeve projection 50 which is arranged to be moved in under the portions 51 of the nut segments 22 facing the locking piston 48 , the locking piston 48 thereby being arranged, when it is in its end position nearest to the end wall 10 , to lock the nut 28 in its active position, in which the nut 28 is in engagement with the mandrel 30 , see FIG. 4 .
  • the locking piston 48 is provided with a number of locking dogs 54 which are arranged to engage a locking groove 56 in the cylinder jacket 8 , see FIG. 4 .
  • the piston 32 is provided with an axially movable, spring-biased release sleeve 58 which is biased in the direction of the end wall 10 by a spring 60 .
  • the release sleeve 58 is arranged to move the locking dogs 54 out of their respective engagements in the locking groove 56 when the piston 32 is at the locking piston 48 , see FIG. 6 .
  • the locking piston 48 is in its intermediate position between the piston 32 and the nut 28 .
  • the motor 14 rotates the shaft 36 , the mandrel 30 and thereby the tool, not shown, about the longitudinal axis 62 of the mandrel 30 .
  • Pressurized fluid from the coiled tubing 2 flows via the adapter 18 , centre bore 16 of the motor 14 , shaft 36 and mandrel 30 to the tool holder 4 .
  • pressurized fluid is flowing via the inner opening 40 and the bore 42 of the piston 32 into a first space 64 between the piston 32 and the locking piston 48 .
  • the locking piston 48 is moved in the direction of the nut 28 by the fluid pressure, see FIG. 3 , until the locking piston 48 hits the nut 28 , the sleeve projection 50 of the locking piston 48 being underneath the projecting portions 51 of the nut segments 22 , whereby the nut segments 22 have been moved into their respective active positions, in which they are in engagement with the mandrel 30 , see FIG. 4 .
  • the locking dogs 54 engage the locking groove 56 , thereby preventing the nut 28 from being movable inwards within the actuator housing 6 .
  • the rotating mandrel 30 which is rotated by the motor 14 , is screwed outwards within the actuator housing 16 by means of the nut 28 , see FIG. 5 .
  • the spring 46 in the shaft 36 thereby moves the valve sleeve 44 closingly in over the second opening 40 .
  • Fluid from the first space 64 is evacuated via the bore 42 in the piston 32 .
  • the actuator housing 6 can be replenished with fluid from the outside of the actuator 1 via an opening 66 in the actuator housing 6 .
  • the pressure from the pressurized fluid flowing into the second space 68 works against the locking piston 48 and the force overcomes the force from the spring 60 , whereby the release sleeve 50 is moved sufficiently far back relative to the piston 32 for the sleeve projection 50 of the locking piston 48 to be disengaged from the nut segments 22 , see FIG. 7 .
  • the annular spring 26 moves the nut segments 22 into their respective inactive positions, whereby the mandrel 30 can be moved back into its retracted initial position.
  • seals 70 which have generally been assigned the reference numeral 70 .
  • the purpose and operation of the seals 70 are well known and not described any further. Because of the relatively great flow rate of pressurized fluid prevailing, no great demands are made on the seals 70 . For example, it has turned out to be unnecessary to place a seal between the end wall 10 and the mandrel 30 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)
  • Earth Drilling (AREA)
  • Transmission Devices (AREA)
US12/672,871 2007-08-09 2008-08-06 Actuator Device Abandoned US20100206552A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20074140 2007-08-09
NO20074140A NO326954B1 (no) 2007-08-09 2007-08-09 Anordning ved lineaer aktuator for aksial forskyvning av et verktoy i et borehull
PCT/NO2008/000283 WO2009020395A2 (en) 2007-08-09 2008-08-06 Actuator device

Publications (1)

Publication Number Publication Date
US20100206552A1 true US20100206552A1 (en) 2010-08-19

Family

ID=40341924

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/672,871 Abandoned US20100206552A1 (en) 2007-08-09 2008-08-06 Actuator Device

Country Status (4)

Country Link
US (1) US20100206552A1 (no)
EP (1) EP2179125A2 (no)
NO (1) NO326954B1 (no)
WO (1) WO2009020395A2 (no)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019032315A1 (en) * 2017-08-07 2019-02-14 Weatherford Technology Holdings, Llc DOWNHOLE TOOL COUPLING SYSTEM
US10526852B2 (en) 2017-06-19 2020-01-07 Weatherford Technology Holdings, Llc Combined multi-coupler with locking clamp connection for top drive
US10626683B2 (en) 2015-08-11 2020-04-21 Weatherford Technology Holdings, Llc Tool identification
US10738535B2 (en) 2016-01-22 2020-08-11 Weatherford Technology Holdings, Llc Power supply for a top drive
US11047175B2 (en) 2017-09-29 2021-06-29 Weatherford Technology Holdings, Llc Combined multi-coupler with rotating locking method for top drive
US11078732B2 (en) 2017-03-09 2021-08-03 Weatherford Technology Holdings, Llc Combined multi-coupler
US11441412B2 (en) 2017-10-11 2022-09-13 Weatherford Technology Holdings, Llc Tool coupler with data and signal transfer methods for top drive
US11572762B2 (en) 2017-05-26 2023-02-07 Weatherford Technology Holdings, Llc Interchangeable swivel combined multicoupler
US11920411B2 (en) 2017-03-02 2024-03-05 Weatherford Technology Holdings, Llc Tool coupler with sliding coupling members for top drive

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2751024A (en) * 1954-03-29 1956-06-19 Johnston Testers Inc Well tool actuating device
US5048612A (en) * 1990-09-10 1991-09-17 Lindsey Completion Systems, Inc. Double nut setting tool and linger hanger assembly
US5584342A (en) * 1995-06-06 1996-12-17 Ponder Industries, Inc. Subterranean rotation-inducing device and method
US20050056427A1 (en) * 2003-09-15 2005-03-17 Clemens Jack G. Downhole force generator and method for use of same
US6923256B2 (en) * 2003-10-28 2005-08-02 Varco I/P, Inc. Disconnect device
US20070277980A1 (en) * 2006-06-01 2007-12-06 Scott Alistair Gordon Downhole perforator assembly and method for use of same
US7367397B2 (en) * 2006-01-05 2008-05-06 Halliburton Energy Services, Inc. Downhole impact generator and method for use of same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6655458B2 (en) * 2001-11-06 2003-12-02 Schlumberger Technology Corporation Formation testing instrument having extensible housing
US7607478B2 (en) * 2006-04-28 2009-10-27 Schlumberger Technology Corporation Intervention tool with operational parameter sensors

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2751024A (en) * 1954-03-29 1956-06-19 Johnston Testers Inc Well tool actuating device
US5048612A (en) * 1990-09-10 1991-09-17 Lindsey Completion Systems, Inc. Double nut setting tool and linger hanger assembly
US5584342A (en) * 1995-06-06 1996-12-17 Ponder Industries, Inc. Subterranean rotation-inducing device and method
US20050056427A1 (en) * 2003-09-15 2005-03-17 Clemens Jack G. Downhole force generator and method for use of same
US6923256B2 (en) * 2003-10-28 2005-08-02 Varco I/P, Inc. Disconnect device
US7367397B2 (en) * 2006-01-05 2008-05-06 Halliburton Energy Services, Inc. Downhole impact generator and method for use of same
US20070277980A1 (en) * 2006-06-01 2007-12-06 Scott Alistair Gordon Downhole perforator assembly and method for use of same

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10626683B2 (en) 2015-08-11 2020-04-21 Weatherford Technology Holdings, Llc Tool identification
US10738535B2 (en) 2016-01-22 2020-08-11 Weatherford Technology Holdings, Llc Power supply for a top drive
US11920411B2 (en) 2017-03-02 2024-03-05 Weatherford Technology Holdings, Llc Tool coupler with sliding coupling members for top drive
US11078732B2 (en) 2017-03-09 2021-08-03 Weatherford Technology Holdings, Llc Combined multi-coupler
US11572762B2 (en) 2017-05-26 2023-02-07 Weatherford Technology Holdings, Llc Interchangeable swivel combined multicoupler
US10526852B2 (en) 2017-06-19 2020-01-07 Weatherford Technology Holdings, Llc Combined multi-coupler with locking clamp connection for top drive
WO2019032315A1 (en) * 2017-08-07 2019-02-14 Weatherford Technology Holdings, Llc DOWNHOLE TOOL COUPLING SYSTEM
US10745978B2 (en) 2017-08-07 2020-08-18 Weatherford Technology Holdings, Llc Downhole tool coupling system
US11047175B2 (en) 2017-09-29 2021-06-29 Weatherford Technology Holdings, Llc Combined multi-coupler with rotating locking method for top drive
US11441412B2 (en) 2017-10-11 2022-09-13 Weatherford Technology Holdings, Llc Tool coupler with data and signal transfer methods for top drive

Also Published As

Publication number Publication date
NO326954B1 (no) 2009-03-23
EP2179125A2 (en) 2010-04-28
WO2009020395A3 (en) 2010-03-11
NO20074140L (no) 2009-02-10
WO2009020395A2 (en) 2009-02-12

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Legal Events

Date Code Title Description
AS Assignment

Owner name: PIPETECH INTERNATIONAL AS, NORWAY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WOLLUM, VIDAR;REEL/FRAME:024044/0160

Effective date: 20100226

STCB Information on status: application discontinuation

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