EP0130450A1 - Dispositif pour retirer une tige de forage d'un puits et pour desserrer les joints de tige - Google Patents

Dispositif pour retirer une tige de forage d'un puits et pour desserrer les joints de tige Download PDF

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Publication number
EP0130450A1
EP0130450A1 EP84106922A EP84106922A EP0130450A1 EP 0130450 A1 EP0130450 A1 EP 0130450A1 EP 84106922 A EP84106922 A EP 84106922A EP 84106922 A EP84106922 A EP 84106922A EP 0130450 A1 EP0130450 A1 EP 0130450A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
clamping
drill
drill pipes
pulling
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
EP84106922A
Other languages
German (de)
English (en)
Other versions
EP0130450B1 (fr
Inventor
Klaus Hütte
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.)
Huette & Co Bohrtechnik GmbH
Original Assignee
Huette & Co Bohrtechnik GmbH
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 Huette & Co Bohrtechnik GmbH filed Critical Huette & Co Bohrtechnik GmbH
Priority to AT84106922T priority Critical patent/ATE21954T1/de
Publication of EP0130450A1 publication Critical patent/EP0130450A1/fr
Application granted granted Critical
Publication of EP0130450B1 publication Critical patent/EP0130450B1/fr
Expired 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
    • 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
    • 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
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/002—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose for special purposes
    • 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 invention relates to a device for pulling drill pipes from a drilling base and loosening the screw connection (breaking) by means of fluidically operated working pistons / cylinder units (cylinders).
  • a wide variety of devices for basic engineering and drilling technology such as hydraulic drilling machines for performing anchor, injection and freeze drilling, are known. They consist of a pressure-operated drilling machine that can be moved up and down on a mobile scaffold by means of a feed motor with an impact motor and a reversible rotary motor that act either on a drill string or together.
  • the drill string can be formed from an inner string of drill rods to be connected to one another by sleeves and a second string of outer drill pipes to be connected to one another by sleeves.
  • screw-in nipples can also be provided, which altogether form a drill string from a large number of individual drill pipes.
  • the drilling is drilled to the predetermined depth, for example up to 50 m, with such drill strings and then the drilling machine is separated from the drill string.
  • the last piece of pipe protrudes from the ground or the like.
  • the anchor is then set or injections are carried out or detonators are inserted, depending on the purpose of the drilling, and the drill string is gradually drawn using a hydraulic pulling device.
  • the object of the invention is to combine a simple release device for pipe connections with a pulling device in a device of the type mentioned at the outset.
  • Such a device should work regardless of the direction of the bore and the drilled surface.
  • the technical solution for this is a drawing cylinder, supported on a base plate on the one hand and a crushing device on the other with its ends, acting in the axial direction of the drill pipes, and a crushing device consisting of two clamping jaw units arranged radially against one another and axially arranged one behind the other by means of clamping cylinders and a release cylinder supported on a clamping jaw unit and acting in the circumferential direction to the drill tubes is proposed.
  • the invention is based on the idea to make the drawing cylinders operate between one on the attached perforated surface supported base plate and a clamping jaw unit, which in turn consists of two axially spaced jaw units, against each other for releasing the pipe connection by a wei - tere, the in circumferential direction Working pistons / cylinder unit acting on the drill pipes are rotatable.
  • the invention not only creates a captive unit of the basic elements required for pulling drill pipes and loosening their screw connection, but also simplifies pulling and loosening to such an extent that it can be carried out by auxiliary personnel.
  • the combination according to the invention represents and permits a considerable simplification of the technical equipment for pulling and loosening drill pipes also a quick replacement of defective sub-assemblies.
  • the base plate is articulated to the drawing cylinder so as to be pivotable about an axis running transversely to the drill pipes, it can adapt directly to the drilling angle on any base surface and thus ensures the best possible frictional connection when pulling the drill pipes.
  • the jaw units can be largely simplified in that they each have a rigidly connected to it and an opposite, displaceable in the direction of the piston rod of the clamping cylinder.
  • the clamping cylinder is supported directly on the rigid clamping jaw and the piston rod of the clamping cylinder in the radial direction by means of the displaceable clamping jaw on the drill pipe.
  • both jaws can be easily replaced or adjusted radially with respect to the drill pipe in such a way that they adapt to the current drill pipe diameter.
  • Both required clamping jaw units are fundamentally interchangeable and held together in a short axial distance from each other by a rotary flange connection so that they can be rotated radially.
  • the angle by which the two jaw units are rotated relative to one another to loosen the screw connection can be set by the piston rod travel of the release cylinder; it is generally about 25 °.
  • Both a right-hand and a left-hand thread can be loosened with the pulling and breaking device according to the invention.
  • the release cylinder on one of its ends is loosened from the clamping jaw unit there and pivoted by approximately 270 ° and in this position is again connected to the previously loosened clamping jaw unit; the latter is rotated in the opposite direction to the release cylinder relative to the other jaw unit.
  • a hydraulic sequential circuit for cyclically actuating at least one clamping cylinder and the drawing cylinder in alternation allows the drill pipe to auto to pull out of the Bochloch matically until the next pipe fitting.
  • at least one of the two clamps is first clamped firmly as a drill pipe, then the drawing cylinder, starting from its fully retracted position, moves into its fully extended position and pulls the drill pipe out of the base of the drill.
  • the clamping cylinder (s) then open and release the drill pipe so that the drawing cylinder can return to its starting position and the entire process can be repeated.
  • a drawing cylinder 1 is preferably pressurized, in particular hydraulically, in a manner not shown, and consists of a hydraulic cylinder 2 and a hollow piston rod 3 with one end face flange 4 screwed to it.
  • a drill pipe 5, 6 can be freely pushed in the axial direction through the entire drawing cylinder 1 and enters the drawing cylinder 1 at the flange 4 and exits again at the opposite end.
  • two eyes 7 are screwed to the end face 8 of the hydraulic cylinder 2, so that the common axis 9 of the two eyes 7 extends at right angles to and in the same plane as the axis 10 of the drill pipes 5, 6.
  • a base plate 11 for supporting the pulling and breaking device on the drilled surface 12 is pivotally articulated to the eyes 7 transversely to the direction of the axis 10 by means of eyes 13, 14 and bolts 15 and has a bore 16 for freely pushing through the drill pipe 5, 6 . It is so large that the drill pipe 5, 6 remains unimpeded even when the base plate 11 is pivoted about the bolts 15.
  • the flange 4 is part of the lower of two clamping jaw units 18, 19 forming a breaking device 17.
  • a jaw unit 18, 19 consists of two spaced, perforated base plates 4, 20; 21, 22 through which the drill pipe 5, 6 is pushed. Between the base plates 4, 20 and 21, 22, one jaw 23, 24 is fixed and an opposing jaw 25, 26 is held.
  • the jaws 23, 24 can be releasably held by two bolts 27 and 28 and by means of a handle 29 for closing to be touched.
  • the displaceable clamping jaws 25, 26 are held by means of screw bolts 30, 31 in a circumferential groove by the piston rods 32, 33 by hydraulic clamping cylinders 34, 35.
  • These clamping cylinders act in the direction of the axis 10 of the drill pipes 5, 6 and at the same time form a lateral connection of the base plates 21, 22 or 4, 20, which are connected to one another on the other sides essentially by welded webs or sheets.
  • the bolts 27, 28 or 30 and 31 allow the jaws 23, 24 and 25, 26 to be exchanged quickly in accordance with the respective tube diameter.
  • Fig. 1 the two jaw units 18, 19 are shown so that the piston rods 32, 33 do not form an angle with each other, but what they do in the use position - as can be seen from Figs. 2 and 3.
  • the eye 40 is pivotally attached to the end 41 of a hydraulic release cylinder 42 at the end of the clamping cylinder 35 pointing away from the drill pipes.
  • the release cylinder 42 and the upper jaw unit 19 are shown in perspective, so that the offset arrangement of the two jaw units 18, 19 can also be seen in a side view.
  • the minimum and maximum angle formed by the two clamping jaw units 18, 19 depends on the basic length and the thrust path of the release cylinder 42. This is attached at its front end 43 in the same way, but from the opposite side, to the end of the clamping cylinder 34 pointing away from the drill pipes 5, 6.
  • nipples, sleeves or the pipe ends provided there can be provided with toothing surfaces 46 which correspond to the cheek surfaces 36, 37 and 38, 39, respectively.
  • the bore 16 of the base plate 11 can - as can be seen from FIG. 3 - also be designed as a wide slot 47 from a base plate edge.
  • a compression force of the drawing cylinder of 80 kN, a clamping force of the clamping cylinders of approximately 60 kN and a twisting force of the release cylinder of approximately 10 kN are recommended.
  • the working pressure of the entire hydraulic system is then preferably 320 bar and the angle of rotation for loosening is approximately 25 °.
  • the pump output required for the hydraulic system is 80 1 / min at 3000 revolutions gen / min.
  • the entire system is controlled by a sequential circuit for the pulling process and a single actuation for the release process in a manner not shown in the drawing.
  • the stroke of the normal piston cylinder, which is actuated as a hollow piston or as two parallel to the drill pipe as a drawing cylinder, is approximately 25 cm in the case of a drawing cylinder approximately 1 m long.
  • Rotating flanges 48, 49 connected to the clamping jaw units 18, 19 allow the clamping jaw units to be rotated relative to one another by means of the release cylinder 42.
  • both clamping jaw units can be actuated when pulling the tube, but preferably only the lower clamping jaw unit 18 is actuated, which has particularly large-area jaw surfaces 36, 37 for this purpose, which are sufficient to provide sufficient grip even on a smooth outer tube surface.
  • the clamping jaws 38, 39 of the clamping jaw unit 19 can be smaller, since this is generally only used in connection with toothing surfaces 46 of a pipe sleeve or a pipe nipple, the clamping jaw unit 18 being the end of the drill pipe 5, which cannot be seen in the drawing, and the clamping jaw unit 19 the opposite end of the drill pipe 6 clamps to loosen the screw connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (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)
  • Jigs For Machine Tools (AREA)
  • Drilling And Boring (AREA)
EP84106922A 1983-06-29 1984-06-16 Dispositif pour retirer une tige de forage d'un puits et pour desserrer les joints de tige Expired EP0130450B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84106922T ATE21954T1 (de) 1983-06-29 1984-06-16 Vorrichtung zum ziehen von bohrrohren aus einem bohrgrund und loesen der verschraubung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3323391 1983-06-29
DE3323391A DE3323391A1 (de) 1983-06-29 1983-06-29 Vorrichtung zum ziehen von bohrrohren aus einem bohrgrund und loesen der verschraubung

Publications (2)

Publication Number Publication Date
EP0130450A1 true EP0130450A1 (fr) 1985-01-09
EP0130450B1 EP0130450B1 (fr) 1986-09-03

Family

ID=6202666

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84106922A Expired EP0130450B1 (fr) 1983-06-29 1984-06-16 Dispositif pour retirer une tige de forage d'un puits et pour desserrer les joints de tige

Country Status (3)

Country Link
EP (1) EP0130450B1 (fr)
AT (1) ATE21954T1 (fr)
DE (2) DE3323391A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0389289A1 (fr) * 1989-03-23 1990-09-26 Oy Tampella Ab Appareil pour désaccoupler un assemblage à vis
WO1999048648A2 (fr) * 1998-03-24 1999-09-30 Fraunhofer Gesellschaft Zur Förderung Der Angewandten Forschung E. V. Dispositif pour entourer par liaison de forme une piece cylindrique
CN103552013A (zh) * 2013-10-18 2014-02-05 焦作锦标机械制造有限公司 一种钻杆接头上的夹具箱

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014208113A1 (de) * 2014-04-29 2015-10-29 Bentec Gmbh Drilling & Oilfield Systems Zangensystem zur Verwendung auf einer Bohranlage und Klemmblock eines solchen Zangensystems

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB656738A (en) * 1948-05-11 1951-08-29 Donovan Burton Grable Improvements in or relating to pipe tongs for making and breaking well pipe joints
GB907824A (en) * 1960-02-08 1962-10-10 Dowty Rotol Ltd Improvements relating to earth boring equipment
US4082017A (en) * 1975-01-07 1978-04-04 Eckel Manufacturing Co. Power operated drill pipe tongs
US4202225A (en) * 1977-03-15 1980-05-13 Sheldon Loren B Power tongs control arrangement
US4326435A (en) * 1980-06-24 1982-04-27 Guillot Preston F Hydraulic power tong

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB656738A (en) * 1948-05-11 1951-08-29 Donovan Burton Grable Improvements in or relating to pipe tongs for making and breaking well pipe joints
GB907824A (en) * 1960-02-08 1962-10-10 Dowty Rotol Ltd Improvements relating to earth boring equipment
US4082017A (en) * 1975-01-07 1978-04-04 Eckel Manufacturing Co. Power operated drill pipe tongs
US4202225A (en) * 1977-03-15 1980-05-13 Sheldon Loren B Power tongs control arrangement
US4326435A (en) * 1980-06-24 1982-04-27 Guillot Preston F Hydraulic power tong

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0389289A1 (fr) * 1989-03-23 1990-09-26 Oy Tampella Ab Appareil pour désaccoupler un assemblage à vis
WO1999048648A2 (fr) * 1998-03-24 1999-09-30 Fraunhofer Gesellschaft Zur Förderung Der Angewandten Forschung E. V. Dispositif pour entourer par liaison de forme une piece cylindrique
WO1999048648A3 (fr) * 1998-03-24 1999-11-11 Fraunhofer Ges Forschung Dispositif pour entourer par liaison de forme une piece cylindrique
CN103552013A (zh) * 2013-10-18 2014-02-05 焦作锦标机械制造有限公司 一种钻杆接头上的夹具箱
CN103552013B (zh) * 2013-10-18 2015-08-19 焦作锦标机械制造有限公司 一种钻杆接头上的夹具箱

Also Published As

Publication number Publication date
EP0130450B1 (fr) 1986-09-03
DE3460612D1 (en) 1986-10-09
ATE21954T1 (de) 1986-09-15
DE3323391A1 (de) 1985-01-10

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