GB2599587A - Device for preventing torsion in a tool string from exceeding a predetermined threshold - Google Patents

Device for preventing torsion in a tool string from exceeding a predetermined threshold Download PDF

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Publication number
GB2599587A
GB2599587A GB2118862.8A GB202118862A GB2599587A GB 2599587 A GB2599587 A GB 2599587A GB 202118862 A GB202118862 A GB 202118862A GB 2599587 A GB2599587 A GB 2599587A
Authority
GB
United Kingdom
Prior art keywords
flexible
inner mandrel
outer pipe
tool string
flexible member
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
Application number
GB2118862.8A
Other versions
GB2599587B (en
Inventor
Lunde Geir
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.)
Toolserv As
Original Assignee
Toolserv 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 Toolserv As filed Critical Toolserv As
Publication of GB2599587A publication Critical patent/GB2599587A/en
Application granted granted Critical
Publication of GB2599587B publication Critical patent/GB2599587B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • E21B17/06—Releasing-joints, e.g. safety joints
    • 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
    • E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/141—Mechanical overload release couplings
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/16—Connecting or disconnecting pipe couplings or joints
    • E21B19/167—Connecting or disconnecting pipe couplings or joints using a wrench adapted to engage a non circular section of pipe, e.g. a section with flats or splines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/04—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type
    • F16D7/06—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with intermediate balls or rollers
    • F16D7/10—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with intermediate balls or rollers moving radially between engagement and disengagement

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Ropes Or Cables (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Earth Drilling (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

A device for preventing torsion in a tool string from exceeding a predetermined threshold, wherein the device comprises: - an inner mandrel for transmitting torque between said inner mandrel and a first portion of the tool string, the inner mandrel comprising at least one flexible member; - an outer pipe for transmitting torque between said outer pipe and a second portion of the tool string; and - a cage arranged between the inner mandrel and the outer pipe, the cage comprising rollers for no-slip rolling on the outer pipe; wherein the flexible member is configured to form a flexible wedge trap for trapping one of the rollers when the torsion between the inner mandrel and outer pipe is below a predetermined threshold, and for the flexible member to flex and allow the roller to roll past the flexible member and escape the flexible wedge trap when the predetermined torsion threshold is exceeded.

Claims (9)

C l a i m s
1. Device (1) for preventing torsion in a tool string from exceeding a predetermined threshold, c h a r a c t e r i s e d i n that the device (1) comprises: - an inner mandrel (3) for transmitting torque between said inner mandrel (3) and a first portion of the tool string, the inner mandrel (3) comprising at least one flexible member (5); - an outer pipe (13) for transmitting torque between said outer pipe (13) and a second portion of the tool string; and - a cage (15) arranged between the inner mandrel (3) and the outer pipe (13), the cage (15) comprising rollers (11) for no-slip rolling on the outer pipe (13); wherein the flexible member (5) is configured to form a flexible wedge trap for trapping one of the rollers (11) when the torsion between the inner mandrel (3) and outer pipe (13) is below a predetermined threshold, and for the flexible mem- ber (5) to flex and allow the roller (11) to roll past the flexible member (5) and es cape the flexible wedge trap when the predetermined torsion threshold is ex ceeded.
2. The device (1) according to claim 1, wherein the flexible member (5) is a flexible blade .
3. The device (1) according to claim 1 or 2, wherein the rollers (11) are distributed evenly in the circumferential direction.
4. The device (1) according to claim 3, wherein the inner mandrel (3) comprises a plurality of flexible members (5) configured to form a plurality of flexible wedge traps distributed evenly in the circumferential direction of the inner mandrel (3), wherein the number of rollers (11) divided by the number of flexible wedge traps is equal to a positive integer.
5. The device (1) according to claim 4, wherein the device (1) comprises a plurality of layers of flexible wedge traps in an axial direction and a cage (15) for each layer of flexible wedge traps.
6. The device (1) according to claim 5, wherein the cages (15) in each adjacent lay er of flexible wedge traps are interlocked in a longitudinal direction.
7. The device (1) according to any of the preceding claims, wherein the device (1) comprises a spline sleeve (17) for locking rotation of the inner mandrel (3) and outer pipe (13) relative to each other.
8. The device (1) according to any of the preceding claims, wherein a radially outermost side of the flexible member (5) is curved.
9. The device (1) according to any of the preceding claims, wherein the device (1) is fluid-tight and comprises a lubricating fluid, and wherein the device (1) further comprises a compensation piston configured to balance the pressure between an inside and an outside of the device (1).
GB2118862.8A 2019-08-27 2020-08-21 Device for preventing torsion in a tool string from exceeding a predetermined threshold Active GB2599587B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20191030A NO347056B1 (en) 2019-08-27 2019-08-27 Device for preventing torsion in a tool string from exceeding a predetermined threshold
PCT/NO2020/050210 WO2021040529A1 (en) 2019-08-27 2020-08-21 Device for preventing torsion in a tool string from exceeding a predetermined threshold

Publications (2)

Publication Number Publication Date
GB2599587A true GB2599587A (en) 2022-04-06
GB2599587B GB2599587B (en) 2023-03-01

Family

ID=74685656

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2118862.8A Active GB2599587B (en) 2019-08-27 2020-08-21 Device for preventing torsion in a tool string from exceeding a predetermined threshold

Country Status (3)

Country Link
GB (1) GB2599587B (en)
NO (1) NO347056B1 (en)
WO (1) WO2021040529A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5271486A (en) * 1989-03-13 1993-12-21 Ntn Corporation Torque limiter
GB2281577A (en) * 1993-09-03 1995-03-08 Baker Hughes Inc Swivel/tilting bit crown for earth-boring drills
GB2363811A (en) * 2000-06-16 2002-01-09 Xl Technology Ltd Steerable drilling tool
US20150226015A1 (en) * 2012-08-29 2015-08-13 Nov Downhole Eurasia Limited Downhole tool with rotational drive coupling and associated methods

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2034420B (en) * 1978-11-23 1982-10-13 Itt Creed Freewheel clutch
WO1993007401A1 (en) * 1991-09-30 1993-04-15 Ntn Corporation Torque limiter having automatic reset functions
CN104781498B (en) * 2012-12-19 2017-08-08 哈利伯顿能源服务公司 Underground torque limit component for drill string

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5271486A (en) * 1989-03-13 1993-12-21 Ntn Corporation Torque limiter
GB2281577A (en) * 1993-09-03 1995-03-08 Baker Hughes Inc Swivel/tilting bit crown for earth-boring drills
GB2363811A (en) * 2000-06-16 2002-01-09 Xl Technology Ltd Steerable drilling tool
US20150226015A1 (en) * 2012-08-29 2015-08-13 Nov Downhole Eurasia Limited Downhole tool with rotational drive coupling and associated methods

Also Published As

Publication number Publication date
GB2599587B (en) 2023-03-01
NO347056B1 (en) 2023-05-02
WO2021040529A1 (en) 2021-03-04
NO20191030A1 (en) 2021-03-01

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