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 PDFInfo
- 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
Links
- 238000005096 rolling process Methods 0.000 claims abstract 2
- 239000012530 fluid Substances 0.000 claims 1
- 230000001050 lubricating effect Effects 0.000 claims 1
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)
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).
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2034420B (en) * | 1978-11-23 | 1982-10-13 | Itt Creed | Freewheel clutch |
DE69223608T2 (en) * | 1991-09-30 | 1998-04-09 | Ntn Toyo Bearing Co Ltd | TORQUE LIMITER WITH AUTOMATIC RESET FUNCTIONS |
BR112015006646A2 (en) * | 2012-12-19 | 2017-07-04 | Halliburton Energy Services Inc | rotary torque limiting unit, and method for limiting torque on a rotary unit |
-
2019
- 2019-08-27 NO NO20191030A patent/NO347056B1/en unknown
-
2020
- 2020-08-21 GB GB2118862.8A patent/GB2599587B/en active Active
- 2020-08-21 WO PCT/NO2020/050210 patent/WO2021040529A1/en active Application Filing
Patent Citations (4)
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 |
---|---|
WO2021040529A1 (en) | 2021-03-04 |
NO347056B1 (en) | 2023-05-02 |
NO20191030A1 (en) | 2021-03-01 |
GB2599587B (en) | 2023-03-01 |
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