WO2011143691A1 - Breakout tool - Google Patents
Breakout tool Download PDFInfo
- Publication number
- WO2011143691A1 WO2011143691A1 PCT/AU2011/000554 AU2011000554W WO2011143691A1 WO 2011143691 A1 WO2011143691 A1 WO 2011143691A1 AU 2011000554 W AU2011000554 W AU 2011000554W WO 2011143691 A1 WO2011143691 A1 WO 2011143691A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- breakout
- jaw
- drill string
- tong
- hydraulic cylinder
- Prior art date
Links
- 238000000034 method Methods 0.000 claims description 16
- 230000003213 activating effect Effects 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 4
- 238000005553 drilling Methods 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 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
- 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
-
- 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
- E21B19/161—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe
- E21B19/163—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe piston-cylinder actuated
-
- 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
- E21B19/20—Combined feeding from rack and connecting, e.g. automatically
Definitions
- the present invention relates to a tool for a drill rig and relates more particularly to a breakout tool for "breaking out” the components of a drill string.
- drill rigs whether drilling for water, oil and gas, minerals or civil works and construction use drill rods and components that couple together to form a "drill string".
- the drill hole is normally progressed by applying a rotation and a downward force to the drill bit at the bottom of the drill string.
- the drill string typically consists of drill rods, drill bits, stabilisers, "subs" and many other components which are normally all of a tubular form and connect with male and female threads.
- the threads are usually an integral part of each component and are required to withstand all the tensile, compressive and torque forces that are applied to the drill string by the drill rig.
- As the drill hole progresses more components are added to the drill string until the final borehole depth is achieved.
- the joints in the drill string are often "made up” to a predetermined torque, and sometimes may become even tighter because of drilling conditions.
- the drill rods and components are removed by gradually withdrawing the drill string from the hole until (usually) one component at a time is exposed. The component below the one to be removed is held securely, allowing the upper component to be unscrewed and removed from the drill area. This cycle continues until all components are retrieved from the hole.
- Unscrewing components of the drill string is often called “breaking out” the components. This is normally achieved with reverse rotation of the drill rig “rotation head” or “rotation gearbox". If the drill string has been over-tightened or if the drill rig head is not capable of breaking the joint, then extra assistance to break the joint is required. When this occurs a “breakout tool” is used to break or loosen the joint.
- the breakout tool usually consists of a holding “tong” which grips the drill string component, and a means of rotating the tong about the drill string centre.
- various types of tong are used to grip the components including wrap-around chain type, pipe wrench type and other clamping designs.
- tongs are self- tightening, so that once they gain a minimal grip on the component they will progressively grip tighter as torque is applied.
- These prior art tools are generally attached to a hydraulic cylinder pulling tangentially to the drill string axis to essentially give a rotating force to the tong and subsequently the drill string component.
- breakout tools are used regularly.
- Existing breakout units have often been made from modified pipe wrenches attached to hydraulic cylinders, and there are many such ad hoc arrangements in use.
- the components in the drill string vary in diameter so the breakout tools need to be capable of gripping a range of diameters.
- Prior art breakout tools are usually manually adjusted to the component size, or parts of them exchanged to change the gripping size.
- the breakout tools are also manually applied to the drill string by a worker and often have to be supported by hand until load is applied and they begin to grip the component.
- a breakout tool for "breaking out" two components of a drill string
- the tool comprising: a breakout tong adapted to grip a first one of the two components of the drill string whilst a second one of the two components is held stationary, the breakout tong comprising a first jaw and a second jaw, the second jaw being pivotally coupled to the first jaw at a first pivot point and having a small hydraulic cylinder for forcing the second jaw to pivot about the first pivot point when it is activated wherein, in use, the first drill string component can be gripped between the second jaw and the first jaw; and, a main hydraulic cylinder adapted to be mounted on the drill rig and being mechanically coupled to the breakout tong for applying a torque to the breakout tong wherein, in use, the two components of the drill string can be broken apart by the breakout tong gripping the first drill string component and applying a torque thereto.
- the small hydraulic cylinder has one end pivotally attached to the first jaw and the other end pivotally attached to the second jaw at a second pivot point located a predetermined distance from the first pivot point, for providing a required leverage when forcing the second jaw to pivot about the first pivot point.
- the geometry of the second jaw relative to the first jaw of the breakout tong is such that, once the first jaw begins to grip the first drill string component, the greater the torque applied to the breakout tong the tighter the second jaw will grip the first drill string component.
- the breakout tong is pivotally coupled to the main hydraulic cylinder via a first mounting clevis, the first mounting clevis being fixed to one end of the hydraulic cylinder and having a first pivot pin provided in connection therewith, the first pivot pin also passing through a mounting block provided in connection with the first jaw of the breakout tong.
- the mounting block is a swivel block which is adapted to permit the breakout tong to swivel though at least 180° wherein, in use, the orientation of the breakout tong can be changed to apply a torque to a component of the drill string in the opposite direction (in a makeup mode).
- the main hydraulic cylinder is housed within an elongate square section housing.
- a rod end of the main hydraulic cylinder is attached to a closed end of the housing, and a body of the main hydraulic cylinder is encased in a square section which enables it to slide longitudinally within the housing but without allowing any axial rotation.
- the tool further comprises a plurality of hydraulic control valves for controlling the sequence of actuation of the small hydraulic cylinder and the main hydraulic cylinder.
- the plurality of hydraulic control valves comprises a small directional hydraulic valve and two sequence valves for ensuring the breakout tong grips before a torque is applied thereto, and releases before resetting in both a breakout mode and a makeup mode.
- a method of "breaking out" two components of a drill string using a breakout tool comprising the steps of: gripping a first one of the two components of the drill string with a breakout tong whilst the second one of the two components is held stationary, the breakout tong comprising a first jaw and a second jaw, the second jaw being pivotally coupled to the first jaw at a pivot point, the step of gripping comprising activating a small hydraulic cylinder for forcing the second jaw to pivot about the pivot point wherein, in use, the first drill string component is gripped between the second jaw and the first jaw; and, applying a torque to the breakout tong by activating a main hydraulic cylinder mounted on the drill rig and which is mechanically coupled to the breakout tong wherein, in use, the two components of the drill string can be broken apart as the breakout tong grips the first drill string component and applies a torque thereto.
- the step of gripping the first drill string component comprises extending the main hydraulic cylinder to its maximum reach; retracting the small hydraulic cylinder to open the first and second jaws of the breakout tong; positioning the first drill component between the first and second jaws; and, extending the small hydraulic cylinder to close the first and second jaws about the first drill string component.
- the step of applying a torque to the breakout tong comprises retracting the main hydraulic cylinder until the joint between the two components of a drill string is "broken.”
- the sequence of activating the small hydraulic cylinder for gripping the first drill string component and of activating the main hydraulic cylinder for applying a torque to the breakout tong is controlled via a plurality of hydraulic control valves wherein, in use, only a single hydraulic control signal is required to complete all phases of the breakout process.
- Figure 1 is a top perspective view of a preferred embodiment of a breakout tool according to the present invention showing the tong in a first orientation;
- Figure 2 is a top perspective view of the breakout tool of Figure 1 showing the tong in a second orientation rotated 180° from the first orientation;
- Figure 3 is a bottom perspective view of the breakout tool of Figure 1.
- a preferred embodiment of a breakout tool 10 in accordance with the invention comprises a breakout tong 12 adapted to grip a first one of the twb components of a drill string (not shown).
- the breakout tool 10 can be used for "breaking out" the two components of a drill string whilst a second one of the two components is held stationary.
- the breakout tong 12 comprises a first jaw 14 and a second jaw 16, with the second jaw 16 pivotally coupled to the first jaw 14 at a first pivot point 18.
- a small hydraulic cylinder 20 is provided in the breakout tong 12 for forcing the second jaw 16 to pivot about the first pivot point 18 when it is activated wherein, in use, the first drill string component can be gripped between the second jaw 16 and the first jaw 14.
- the breakout tool 10 further comprises a main hydraulic cylinder 22 adapted to be mounted on the drill rig, (not shown) and which is mechanically coupled to the breakout tong 12 for applying a torque to the breakout tong 12.
- the two components of the drill string can be broken apart by the breakout tong 12 gripping the first drill string component and applying a torque thereto via the main hydraulic cylinder 22.
- the small hydraulic cylinder 20 has one end pivotally attached to the first jaw 14 and the other end pivotally attached to the second jaw 16 at a second pivot point 24 located a predetermined distance from the first pivot point 18. The distance between the first and second pivot points 18 and 24 is selected to provide a required leverage when forcing the second jaw 16 to pivot about the first pivot point 18.
- the second jaw 16 is hook-shaped.
- the first jaw 14 is substantially straight and is joined at an elbow to an arm 25 forming part of the breakout tong 12.
- the first jaw 14 is preferably provided with a serrated insert 26 to help grip the drill string component
- the second jaw 16 is preferably provided with a jaw tip 28 having a serrated surface to also help grip the drill string component.
- the jaw tip 28 is preferably attached to the second jaw 16 via pivot pin 30 to allow for easy removal.
- the geometry of the second jaw 16 relative to the first jaw 14 of the breakout tong 12 is such that, once the second jaw 16 begins to grip the first drill string component, the greater the torque applied to the breakout tong 12 the tighter the second jaw 16 will grip the first drill string component.
- the breakout tong 12 is pivotally coupled to the main hydraulic cylinder 22 via a first mounting clevis 32.
- the first mounting clevis 32 is fixed to one end of the hydraulic cylinder 22 and has a pivot pin 34 provided in connection therewith, the pivot pin 34 also passing through a mounting block 36 provided in connection with the first jaw 14 of the breakout tong 12.
- the mounting block is a swivel block 36 which is adapted to permit the breakout tong 12 to swivel though at least 180° about a longitudinal axis of the arm 25 of the breakout tong.
- the arm 25 has a boss (not visible) which is pivotally mounted in a bore provided through the swivel block 36.
- a first handle 38 is attached to an exposed face- of the boss, at the back end of the swivel block 36, for allowing the arm 25 to be manually pivoted in the swivel block.
- Handle 38 also acts to retain the arm 25 in the swivel block.
- the orientation of the breakout tong 12 can thus be changed to apply a torque to a component of the drill string in the opposite direction (in a makeup mode).
- a second handle 40 is attached to the side of the swivel block 36 to enable the whole breakout unit 10 to be manoeuvred into position.
- the breakout tool 10 further comprises a plurality of hydraulic control valves (not visible) for controlling the sequence of actuation of the small hydraulic cylinder 20 and the main hydraulic cylinder 22.
- the plurality of hydraulic control valves typically comprises a small directional hydraulic valve and two sequence valves for ensuring the breakout tong 12 grips before a torque is applied thereto, and releases before resetting in both a breakout mode and a makeup mode.
- a guard 42 covers the moving parts and pinch points of the breakout tongs 12 and prevents stray objects from getting in and jamming the jaws of the breakout tongs or damaging the small hydraulic cylinder 20.
- the main hydraulic cylinder 22 is housed within an elongate square section housing 44 which is attached to the first mounting clevis 32.
- the rod end of the cylinder 22 is attached to the closed end of the housing 44, and the body of hydraulic cylinder 22 is encased in a square section which enables it to slide longitudinally within the housing 44 but without allowing any axial rotation.
- the mounting clevis 32 is attached to the end of the hydraulic cylinder 22 and is limited to 90° rotation about the cylinder axis, so as to support the breakout tong 12 in the working position.
- a second mounting clevis 50 is provided in connection with the housing 44.
- the position of the mounting clevis 50 along the housing 44 can be adjusted via a series of mounting holes 52 to allow for different mounting options, as can be seen most clearly in Figure 3.
- the mounting clevis 50 can also be pivoted a small amount in either direction on slots 54. This is to allow adjustment of the angle of the complete tong assembly.
- a cover protects the small directional valve and sequence valves.
- the breakout tong 12 is then positioned onto the drill string component above the joint to be broken, and with the drill string in the "mouth" formed between the second jaw 16 and the first jaw 14 on arm 25.
- the main hydraulic cylinder 22 is then activated to retract.
- the sequence valves will first activate the small cylinder 20 to close the second jaw 16, which will initiate a grip on the drill string component.
- the main cylinder 22 then retracts, applying a torque to the breakout tong via mounting clevis 32 and swivel block 36. This turns the breakout tong 12, applying a torque to the drill string component, and consequently breaking the joint.
- the tong 12 can be reversed by rotating the first handle 38 which inverts the tong to the position shown in Figure 2.
- the small directional hydraulic valve is then changed to its opposite setting, which changes the sequence to now close the second jaw 16 when the main cylinder 22 is extended.
- the sequence of activating the small hydraulic cylinder for gripping the first drill string component and of activating the main hydraulic cylinder for applying a torque to the breakout tong is controlled via the hydraulic control valves so that, in use, only a single hydraulic control signal is required to complete all phases of the breakout process.
- the breakout tool is self supporting and does not require manual intervention during the breakout phase. It is essentially hands-free other than initial location onto drill string.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2797998A CA2797998C (en) | 2010-05-19 | 2011-05-12 | Breakout tool |
KR1020127033107A KR101703975B1 (en) | 2010-05-19 | 2011-05-12 | Breakout tool |
US13/698,722 US9181766B2 (en) | 2010-05-19 | 2011-05-12 | Breakout tool |
AU2011256120A AU2011256120B2 (en) | 2010-05-19 | 2011-05-12 | Breakout tool |
EP11782757.6A EP2572071B1 (en) | 2010-05-19 | 2011-05-12 | Breakout tool |
ZA2012/09528A ZA201209528B (en) | 2010-05-19 | 2012-12-14 | Breakout tool |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2010902190 | 2010-05-19 | ||
AU2010902190A AU2010902190A0 (en) | 2010-05-19 | Breakout Tool |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011143691A1 true WO2011143691A1 (en) | 2011-11-24 |
Family
ID=44991073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2011/000554 WO2011143691A1 (en) | 2010-05-19 | 2011-05-12 | Breakout tool |
Country Status (7)
Country | Link |
---|---|
US (1) | US9181766B2 (en) |
EP (1) | EP2572071B1 (en) |
KR (1) | KR101703975B1 (en) |
AU (1) | AU2011256120B2 (en) |
CA (1) | CA2797998C (en) |
WO (1) | WO2011143691A1 (en) |
ZA (1) | ZA201209528B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019125698A1 (en) | 2017-12-19 | 2019-06-27 | Falcon Tools, LLC | Bit breaker technology |
US11391101B2 (en) | 2017-12-19 | 2022-07-19 | Falcon Tools, LLC | Bit breaker technology |
USD1012642S1 (en) * | 2020-12-30 | 2024-01-30 | Vifma Spa | Adjustable breakout wrench for blasthole drill rods of different diameters |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4194419A (en) * | 1977-07-13 | 1980-03-25 | Cooper Industries, Inc. | Drill pipe handling mechanism |
US5653297A (en) | 1995-04-14 | 1997-08-05 | Harnischfeger Corporation | Blasthole drill with improved automatic breakout wrench |
US5791206A (en) | 1996-12-10 | 1998-08-11 | Ingersoll-Rand Company | Drill pipe handling mechanism |
WO1999022915A2 (en) | 1997-10-30 | 1999-05-14 | Driltech Inc. | Apparatus for unscrewing drill pipe sections |
US6047775A (en) | 1996-06-27 | 2000-04-11 | Bucyrus International, Inc. | Blast hole drill pipe gripping mechanism |
US20100050817A1 (en) | 2008-08-28 | 2010-03-04 | Hawk Industries, Inc. | Automatically adjustable power jaw |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2823450A (en) * | 1954-04-19 | 1958-02-18 | Waterous Co | Hydraulic hydrant disassembly wrench |
US3500708A (en) * | 1967-05-01 | 1970-03-17 | Wilson John H | Automated pipe tongs |
US4072434A (en) * | 1975-12-03 | 1978-02-07 | Homuth Kenneth C | Hydraulic cylinder with concentrically maintained piston and rod |
US5040438A (en) * | 1990-03-30 | 1991-08-20 | Longyear Company | Powered wrench apparatus |
US5537900A (en) * | 1995-02-22 | 1996-07-23 | Reedrill Corporation | Toggled breakout wrench |
US5931231A (en) * | 1996-06-27 | 1999-08-03 | Bucyrus International, Inc. | Blast hole drill pipe gripping mechanism |
US6012360A (en) * | 1998-07-13 | 2000-01-11 | Olaya Saavedra Santana | Hydraulic wrench with gripping force proportional to applied torque |
US7707914B2 (en) * | 2003-10-08 | 2010-05-04 | Weatherford/Lamb, Inc. | Apparatus and methods for connecting tubulars |
US8453542B2 (en) * | 2007-08-28 | 2013-06-04 | Petrus Christiaan Gouws | Wrench for use with drilling apparatus |
US8627748B2 (en) * | 2007-10-23 | 2014-01-14 | Petrus Christiaan Gouws | Wrench for use with a drilling apparatus |
-
2011
- 2011-05-12 EP EP11782757.6A patent/EP2572071B1/en active Active
- 2011-05-12 WO PCT/AU2011/000554 patent/WO2011143691A1/en active Application Filing
- 2011-05-12 US US13/698,722 patent/US9181766B2/en active Active
- 2011-05-12 KR KR1020127033107A patent/KR101703975B1/en active IP Right Grant
- 2011-05-12 AU AU2011256120A patent/AU2011256120B2/en active Active
- 2011-05-12 CA CA2797998A patent/CA2797998C/en active Active
-
2012
- 2012-12-14 ZA ZA2012/09528A patent/ZA201209528B/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4194419A (en) * | 1977-07-13 | 1980-03-25 | Cooper Industries, Inc. | Drill pipe handling mechanism |
US5653297A (en) | 1995-04-14 | 1997-08-05 | Harnischfeger Corporation | Blasthole drill with improved automatic breakout wrench |
US6047775A (en) | 1996-06-27 | 2000-04-11 | Bucyrus International, Inc. | Blast hole drill pipe gripping mechanism |
US5791206A (en) | 1996-12-10 | 1998-08-11 | Ingersoll-Rand Company | Drill pipe handling mechanism |
WO1999022915A2 (en) | 1997-10-30 | 1999-05-14 | Driltech Inc. | Apparatus for unscrewing drill pipe sections |
US20100050817A1 (en) | 2008-08-28 | 2010-03-04 | Hawk Industries, Inc. | Automatically adjustable power jaw |
Non-Patent Citations (1)
Title |
---|
See also references of EP2572071A4 |
Also Published As
Publication number | Publication date |
---|---|
AU2011256120A1 (en) | 2013-01-10 |
EP2572071A4 (en) | 2017-09-20 |
KR101703975B1 (en) | 2017-02-08 |
CA2797998C (en) | 2019-10-22 |
CA2797998A1 (en) | 2011-11-24 |
US20130118316A1 (en) | 2013-05-16 |
EP2572071A1 (en) | 2013-03-27 |
AU2011256120B2 (en) | 2014-10-23 |
KR20130124164A (en) | 2013-11-13 |
EP2572071B1 (en) | 2019-10-30 |
US9181766B2 (en) | 2015-11-10 |
ZA201209528B (en) | 2013-08-28 |
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