WO2015100687A1 - Dispositif de serrage de tige de forage pour plate-forme de forage à tête de puissance - Google Patents

Dispositif de serrage de tige de forage pour plate-forme de forage à tête de puissance Download PDF

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Publication number
WO2015100687A1
WO2015100687A1 PCT/CN2014/000528 CN2014000528W WO2015100687A1 WO 2015100687 A1 WO2015100687 A1 WO 2015100687A1 CN 2014000528 W CN2014000528 W CN 2014000528W WO 2015100687 A1 WO2015100687 A1 WO 2015100687A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamping
slip seat
cylinder
end cover
slip
Prior art date
Application number
PCT/CN2014/000528
Other languages
English (en)
Chinese (zh)
Inventor
黎健
王生
Original Assignee
恒天九五重工有限公司
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 恒天九五重工有限公司 filed Critical 恒天九五重工有限公司
Publication of WO2015100687A1 publication Critical patent/WO2015100687A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B19/10—Slips; Spiders ; Catching devices

Definitions

  • the present invention relates to a holder, and more particularly to a hydraulic gripper technology field that can be used in a full hydraulic power head drill. Background technique
  • Fully hydraulic power head rigs are usually equipped with grippers, which are one of the key design factors for a fully hydraulic power head clip mechanism.
  • a normally closed hydraulic gripper is commonly used.
  • it mainly includes a left clamping device and a right clamping device which can be used for opposite and opposite movements, and a right and left slips thereof, and a thrust unit is arranged in the left and right clamping devices, such as
  • the thrust unit of the side clamping device adopts a one-way cylinder
  • the thrust unit of the other side clamping device adopts a spring
  • the one side cylinder clamps the drill rod and simultaneously drives the spring force of the other side to be "compressed" to clamp the drill rod.
  • the loosening operation is achieved by means of another one-way cylinder arranged on one side of the spring.
  • the holder relies on the deformation of the spring itself to achieve the purpose of clamping.
  • the spring must have fatigue. The greater the compression and extension frequency of the spring, the shorter the life of the spring. This requires frequent disassembly and replacement by the staff. If the one-way cylinder is loosened, the clamping force of the clamp is always dependent on the tension of the spring. It requires a larger size or more springs. At the same time, the increase of the spring tension is inevitable.
  • the one-way thrust of the cylinder is increased to open the clamping port against the spring force, which in turn causes an increase in the overall volume of the holder and a decrease in the hydraulic opening and closing efficiency.
  • a drill pipe holder for a power head drill comprising a base, a left clamping device and a right clamping device, the left clamping device comprising a left slip seat, a clamping cylinder and an elastic a clamping cylinder;
  • the clamping cylinder includes a clamping cylinder, a clamping piston mounted in the clamping cylinder and connected to the left slip seat;
  • the elastic clamping device comprises a clamping cylinder An outer elastic member; a rear end of the clamping cylinder is fixedly connected to the left end cover, a right end of the clamping piston is connected to the left slip seat, and a left slip is disposed on the left slip seat, the elasticity One end of the component is placed on the left end cap, and the other end is on the left card.
  • the right clamping device comprises a loosening cylinder, a loosening piston, a jack and a support frame, the loosening cylinder is fixedly connected to the right end cover, and the loosening piston sleeve is disposed outside the loose cylinder
  • the support frame is disposed on the right end cover, the support frame is provided with a right slip seat, the right slip seat is provided with a right slip, and the middle portion of the right and right kava is provided a through hole, wherein the through hole is provided with a top rod;
  • the left end cover, the left slip seat and the right end cover, and the right slip seat are connected and locked by the guide rod;
  • a guide rail is disposed on the base, and a centering limit block is disposed in the middle of the guide rail, and a left limit block and a right limit block are disposed at both ends.
  • left slip seat and the right slip base have a guiding portion at the bottom, and the guiding portion is provided with a sliding slot.
  • a length of the top rod above the surface of the right slip is a distance between the guiding portion of the left slip seat and the left limit block sliding from the centering stop block.
  • the oil inlet port I is disposed on the left end cover of the left clamping body and communicates with the left clamping boosting cylinder; the oil inlet port is disposed on the right end cover and communicates with the releasing cylinder.
  • a sleeve is disposed outside the elastic element.
  • the position of the alignment stop block is satisfied: the clamping center of the left left slip is located at the center of the clamping of the drill holder.
  • the end face shape of the loosening piston includes an intermediate circular portion and an extending portion extending from the circular portion to both sides, the extending portion being on the bottom surface of the top post.
  • the invention has the beneficial effects that the clamping is not solely dependent on the deformation of the spring itself, the clamping can be pressurized, and the positioning and centering can be automatically set, thereby improving the working efficiency.
  • Figure 1 is a front cross-sectional view showing a holder of an embodiment of the present invention.
  • Figure 2 is a cross-sectional view along line A-A of Figure 1 of the holder of the embodiment of the present invention.
  • Figure 3 is a cross-sectional view taken along line B-B of Figure 1 of the holder of the embodiment of the present invention.
  • Figure 4 is a cross-sectional view taken along line C-C of Figure 1 of the holder of the embodiment of the present invention.
  • the hydraulic gripper of the present embodiment includes a base 14, a left gripping device, and a right gripping device and a guide rod 19.
  • the left clamping device includes a left slip seat 6 and a clamping cylinder and an elastic clamping device.
  • the left slip 7 is fixed to the left slip seat 6;
  • the clamping cylinder includes a clamping cylinder 2, a clamping piston 3 mounted in the clamping cylinder 2, and a left end cap fixed to the clamping cylinder 2.
  • the elastic clamping device comprises an elastic member 4 which is fitted around the periphery of the clamping cylinder 2.
  • the two ends of the elastic member 4 are respectively connected to the left end cover 1 and the left slip seat 6, and the elastic member is preferably a disc spring, and the elastic member 4 A sleeve 5 is provided outside.
  • the right gripping device includes a right slip seat 9 and a release cylinder.
  • the right slip 8 is fixedly connected to the right slip seat 9.
  • the release cylinder includes a release cylinder 11 and a release piston 10, the release cylinder 11 is fixedly coupled to the right end cover 12, and a support frame is disposed between the right end cover and the right slip seat 9, the pine
  • the open piston 10 is disposed outside the loosening cylinder 12 and is movable back and forth within the space of the support frame.
  • the left clamping device and the right clamping device are guided by four guiding rods 19, and one end of the guiding rod 19 is a protruding flange, and the guiding rod 19 is passed through the guiding holes of the right end cover and the right slip seat.
  • the guide holes of the left slip, the left slip seat and the left end cover are tightened with a tightening nut and locked with a lock nut.
  • a guide rail is mounted on the base 14, and the lower surface of the left slip seat 6 and the right slip seat 9 is provided with a guide groove, and the guide groove slides on the guide rail.
  • the left limit block 13 and the right limit block 18 are disposed on the guide rail, and a centering limit block 16 for positioning the left slip of the left slip 7 is located at the grip center of the holder.
  • Fig. 4 shows the shape of the end face of the loosening piston 10, which comprises an intermediate circular portion and an extension extending to both sides by a circular portion, the extension being placed on the bottom surface of the top pillar 17.
  • the holder of this embodiment is simpler in structure and has no weakening of the clamping function as compared with the conventional holder.
  • the working process of the hydraulic gripper of this embodiment is as follows:
  • the hydraulic gripper of the embodiment maintains the gripper normally closed by providing an elastic clamping device, and the left end of the elastic member 4 presses the left end cap and drives the loosening cylinder 11 and the right slip seat 9 to move to the left; The right end presses the left slip seat 6, drives the left slip seat 6 and the left slip 7 to move to the right to clamp the drill rod. At this time, the oil pressure is released, and when it is not working, it is in the state of clamping the drill;
  • the main working parts are a clamping cylinder and a release cylinder, and a pair of disc springs are connected to one side of the clamping cylinder;
  • the length of the ejector rod 17 above the surface of the right slip 8 is the distance between the guide portion of the left slip seat 6 sliding from the centering stop block 16 to the left limit block 13.
  • the above technical solution can realize automatic self-aligning and automatic resetting of the gripper when the drilling machine clamps the drill pipe, and can realize the pressure clamping.

Abstract

L'invention porte sur un support de tige de forage pour une plate-forme de forage à tête de puissance, lequel support comprend : une base (14), un appareil de serrage gauche et un appareil de serrage droit, l'appareil de serrage gauche comprenant un siège de coin de retenue gauche (6), un cylindre à huile de serrage et un appareil de serrage élastique ; le cylindre à huile de serrage comprend un corps de cylindre de serrage (2) et un piston de serrage (3) ; l'appareil de serrage élastique comprend un élément élastique (4) ; un coin de retenue gauche (7) est disposé sur le siège de coin de retenue gauche, et une extrémité de l'élément élastique (4) bute sur un capot d'extrémité gauche (1), l'autre extrémité étant au-dessus du siège de coin de retenue gauche ; le corps de serrage droit comprend un corps de cylindre de relâchement (11), un piston de relâchement (10) et une tige supérieure (17), un trou traversant étant disposé dans la partie entre un siège de coin de retenue droit et un coin de retenue droit, la tige supérieure (17) étant disposée dans le trou traversant, le capot d'extrémité gauche (1) et le siège de coin de retenue gauche (6) étant reliés à un capot d'extrémité droite (12) et à un siège de coin de retenue droit (9) à l'aide d'une tige de de guidage (19) et étant verrouillés ; un rail de guidage (15) est disposé sur la base (14), un élément d'alignement (16) étant disposé dans le centre du rail de guidage, et un élément d'arrêt gauche (13) et un élément d'arrêt droit (18) étant disposés aux deux extrémités. Le dispositif de serrage ne s'appuie pas seulement sur un serrage par déformation d'un ressort, il peut se positionner et s'aligner automatiquement lui-même, ayant une structure simple et un entretien pratique.
PCT/CN2014/000528 2013-12-30 2014-05-26 Dispositif de serrage de tige de forage pour plate-forme de forage à tête de puissance WO2015100687A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310747251.1A CN103670304A (zh) 2013-12-30 2013-12-30 一种动力头式钻机的钻杆夹持器
CN201310747251.1 2013-12-30

Publications (1)

Publication Number Publication Date
WO2015100687A1 true WO2015100687A1 (fr) 2015-07-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/000528 WO2015100687A1 (fr) 2013-12-30 2014-05-26 Dispositif de serrage de tige de forage pour plate-forme de forage à tête de puissance

Country Status (2)

Country Link
CN (1) CN103670304A (fr)
WO (1) WO2015100687A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108104738A (zh) * 2018-02-05 2018-06-01 湖南科技大学 海底钻机钻杆对中装置
CN108266136A (zh) * 2018-03-27 2018-07-10 西南石油大学 一种液动内卡式油套管夹持器
CN115977557A (zh) * 2023-03-22 2023-04-18 四川圣诺油气工程技术服务有限公司 带压作业油管升降控制装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103670304A (zh) * 2013-12-30 2014-03-26 恒天九五重工有限公司 一种动力头式钻机的钻杆夹持器
CN105317386A (zh) * 2014-06-25 2016-02-10 上海金泰工程机械有限公司 单油缸自动复位钻杆夹持器
CN104929541A (zh) * 2015-05-26 2015-09-23 成都高普石油工程技术有限公司 卸钻杆用限位机构
CN105221086B (zh) * 2015-11-17 2017-11-07 恒天九五重工有限公司 一种钻杆夹持装置
CN108869575B (zh) * 2018-07-04 2019-09-24 燕山大学 常闭式力平衡锁紧器

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WO1999053168A1 (fr) * 1998-04-08 1999-10-21 Engineering & Drilling Machinery As Plateau rotatif
RU2151262C1 (ru) * 1998-07-23 2000-06-20 Нефтегазодобывающее управление "Альметьевнефть" Зажим для удержания колонны насосных штанг
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CN201241638Y (zh) * 2008-08-20 2009-05-20 石家庄中煤装备制造有限公司 一种常闭式液压卡盘
CN201262051Y (zh) * 2008-09-28 2009-06-24 煤炭科学研究总院重庆研究院 复式液压夹持器
CN101775965A (zh) * 2010-02-09 2010-07-14 煤炭科学研究总院西安研究院 一种顶部开放式复合夹持器
CN202483480U (zh) * 2012-03-30 2012-10-10 中煤科工集团重庆研究院 液压夹持器
CN103670304A (zh) * 2013-12-30 2014-03-26 恒天九五重工有限公司 一种动力头式钻机的钻杆夹持器

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US5706894A (en) * 1996-06-20 1998-01-13 Frank's International, Inc. Automatic self energizing stop collar
CN201786282U (zh) * 2010-09-27 2011-04-06 江苏中煤矿山设备有限公司 煤矿用钻杆液压夹持器
CN102606089A (zh) * 2012-03-30 2012-07-25 中煤科工集团重庆研究院 液压夹持器

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999053168A1 (fr) * 1998-04-08 1999-10-21 Engineering & Drilling Machinery As Plateau rotatif
RU2151262C1 (ru) * 1998-07-23 2000-06-20 Нефтегазодобывающее управление "Альметьевнефть" Зажим для удержания колонны насосных штанг
CN201241638Y (zh) * 2008-08-20 2009-05-20 石家庄中煤装备制造有限公司 一种常闭式液压卡盘
CN101363310A (zh) * 2008-09-28 2009-02-11 煤炭科学研究总院重庆研究院 矿用全液压钻机联动液压夹持器
CN201262051Y (zh) * 2008-09-28 2009-06-24 煤炭科学研究总院重庆研究院 复式液压夹持器
CN101775965A (zh) * 2010-02-09 2010-07-14 煤炭科学研究总院西安研究院 一种顶部开放式复合夹持器
CN202483480U (zh) * 2012-03-30 2012-10-10 中煤科工集团重庆研究院 液压夹持器
CN103670304A (zh) * 2013-12-30 2014-03-26 恒天九五重工有限公司 一种动力头式钻机的钻杆夹持器

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108104738A (zh) * 2018-02-05 2018-06-01 湖南科技大学 海底钻机钻杆对中装置
CN108104738B (zh) * 2018-02-05 2023-08-11 湖南科技大学 海底钻机钻杆对中装置
CN108266136A (zh) * 2018-03-27 2018-07-10 西南石油大学 一种液动内卡式油套管夹持器
CN108266136B (zh) * 2018-03-27 2023-07-25 西南石油大学 一种液动内卡式油套管夹持器
CN115977557A (zh) * 2023-03-22 2023-04-18 四川圣诺油气工程技术服务有限公司 带压作业油管升降控制装置

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