CN109236206A - A kind of reducing air operated slips suitable for more size tubing strings - Google Patents

A kind of reducing air operated slips suitable for more size tubing strings Download PDF

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Publication number
CN109236206A
CN109236206A CN201811217945.3A CN201811217945A CN109236206A CN 109236206 A CN109236206 A CN 109236206A CN 201811217945 A CN201811217945 A CN 201811217945A CN 109236206 A CN109236206 A CN 109236206A
Authority
CN
China
Prior art keywords
slips
pedestal
air operated
cylinder
reducing air
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.)
Pending
Application number
CN201811217945.3A
Other languages
Chinese (zh)
Inventor
张晓东
彭粲粲
杨文武
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.)
Southwest Petroleum University
Original Assignee
Southwest Petroleum University
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 Southwest Petroleum University filed Critical Southwest Petroleum University
Priority to CN201811217945.3A priority Critical patent/CN109236206A/en
Publication of CN109236206A publication Critical patent/CN109236206A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/10Slips; Spiders ; Catching devices

Abstract

The invention discloses a kind of reducing air operated slips for field of oil drilling, including annular slips pedestal 1, and there are three tapering annular slots 9 for pedestal inside;Cylinder 5 there are three being connected with pedestal, cylinder 5 is connect with three slips bodies 3 respectively again, 5 piston of cylinder can push slips body 3 to slidably reciprocate in tapering annular slot 9, when cylinder 5 extends, slips body 3 is pushed to move downward along internal cone cell annular groove 9, it is shunk simultaneously to the center of circle, drilling tool is clamped, to achieve the purpose that reducing.The present invention passes through above-mentioned principle, change general air operated slips can be only applied to specific dimensions tubing string operating condition status, when so that removing different size tubing strings in drilling process, it can fulfil assignment in the case where not having to replacement slips body 3, it is provided convenience for round trip, greatly reduce worker's working strength, saves the time.

Description

A kind of reducing air operated slips suitable for more size tubing strings
Technical field
It is the air operated slips used in operating condition that makes a trip in a kind of drilling process the present invention relates to field of oil drilling, it is special It is not a kind of reducing air operated slips that can be improved the timeliness that makes a trip.
Background technique
Currently, drilling slip is widely used in drilling engineering round trip, and it is main to play clamping tubing string, it prevents from falling off Effect.The trip mode of country's drillng operation mainly has double elevators to pull out of hole at present, drill pipe slip cooperates single elevator to pull out of hole, There are some areas to apply air operated slips.But 3 structure of slips body of current air operated slips has only for same size drilling tool Effect, when drill assembly changes, current air operated slips is not able to satisfy duty requirements, so needing replacing slips body 3. The slips body 3 for replacing air operated slips at the scene at present is a time consuming job, and driller needs first by air operated slips It is removed from well head, to prevent causing the drilling failures such as trouble of lost tool in hole in well head replacement, then proceedes to remove and replace correspondingly-sized The air operated slips can be installed to well head again and carry out round trip by slips body 3.So that wasting many treasured The expensive trip time, especially when carrying out the probing of deep-well and ultradeep well, with greater need for the timeliness that guarantee makes a trip, Yi Miankong Well overlong time causes underground complicated.
Summary of the invention
The present invention overcomes the deficiencies of existing tool, provide a kind of air operated slips that reducing uses, not only structure letter It is single, and working efficiency can be greatly improved.
The technical scheme adopted by the invention is that: a kind of air operated slips of reducing, the slips pedestal 1 including two halves formula, Equipped with the lifting lug 7 being threadedly coupled at the top of slips pedestal 1, using preceding two halves pedestal is being lifted into well head respectively, is then passing through pin Nail connection can use after installing.There is tapering annular slot 9 on the inside of slips pedestal 1, there is slideway in slot, slips body 3 is mounted on On slideway, cylinder 5 is connected with slips body 3, slips pedestal 1 respectively, and all cylinders 5 elongate or shorten simultaneously to control slips body 3 along (upper and lower) compound motion inside and outside slideway, to achieve the purpose that reducing.
There are three the tapering annular slots 9, but is not limited to three, and when well depth is larger, the weight of required carrying also can Increase, the quantity of annular groove can be increased at this moment to achieve the effect that increase bearing capacity.Tapering annular slot 9 should be protected with horizontal plane Biggish tilt angle is held, just slips body 3 can be made not slide at work, plays the work for preventing slips from failing With.
Slip insert 4 is housed, the motion range of slips body 3 is (with the annular radius at slip insert 4 on the inside of the slips body 3 Calculate) it is being capable of clamping between outer diameter 139.7mm (5 ' 1/2) drilling rod and 88.9mm (3 ' 1/2) drilling rod.But according to the air operated slips institute The operating area of application is different, string size is different, and the reducing slips overall structure can be also adjusted.
Compared with prior art, the present invention mainly has the advantage that the 1, present invention on the basis of existing air operated slips, mentions A kind of air operated slips that reducing uses out.During round trip, cylinder 5 can be controlled by pressure come regulating piston Pole length realizes variable diameter purpose, the more existing air operated slips of structure is more so that effectively control slips body 3 moves back and forth It is novel.2, it is compared with common air operated slips, when encountering the drilling tool of different dimension combinations, does not have to the case where replacing slips body 3 It is lower directly to carry out round trip, the time of round trip is greatly reduced, has striven for valuable drilling time, has also dropped significantly The low labor intensity of driller.
Detailed description of the invention
Fig. 1 is general structure schematic diagram of the invention, which is illustrated point of air operated slips main parts size component Cloth situation.Appended drawing reference respectively indicates in figure are as follows: 1- slips pedestal;2- connecting pin;3- slips body;4- slip insert;5- cylinder; 6- gas circuit pipe wire casing;7- lifting lug;8- pipe joint;9- tapering annular slot;10- drilling rod.
Fig. 2 is top view of the present invention.The view shows the distribution situation of tapering annular slot, cylinder and slips body.
Fig. 3 is scheme of installation of the invention.The installation and connection type of air operated slips is illustrated in the schematic table.
Fig. 4 is mechanism driving block diagram of the invention.The positional relationship of cylinder and slips body is illustrated in the schematic table.
Fig. 5 is the schematic cross-section of slips pedestal tapering annular slot of the invention.The schematic diagram can more clearly embody The structure of tapering annular slot.
Specific embodiment
The present invention provides a kind of air operated slips of reducing, and main includes annular slips pedestal 1, connecting pin 2, slips body 3, slip insert 4, cylinder 5, gas circuit pipe wire casing 6, lifting lug 7, pipe joint 8, tapering annular slot 9.Wherein annular slips pedestal 1 is two Half formula structure, is linked together by connecting pin 2.Annular 1 inner wall of slips pedestal is equally spaced and has tapering annular slot 9, has in slot Slideway.Slips body 3 identical with 9 size of tapering annular slot is mounted in slot, and slips body 3 is connected with 5 piston of cylinder, passes through cylinder The 5 flexible slips body 3 that can control moves up and down, and cylinder 5 and slips pedestal 1 are hinged, and cylinder 5 and slips pedestal 1 There is gas circuit pipe wire casing 6 on the outside of junction, inside there is gas circuit pipeline to be connected at the pipe joint 8 of pedestal.
The present invention is two-half structure, is first lifted into the two halves of air operated slips on turntable surface respectively using preceding, then It removes lifting lug 7 and completes assembly on turntable surface.It is needed before use first with gas pipeline connection driller's console switch and slips pedestal 1 Pipe joint 8.In trip-out operation, driller above mention first tourist bus until column box cupling be higher by 1 surface 500mm of slips pedestal with On, then operating console valve switch to positive open position, all 5 integrating actions of cylinder extend piston rods at this time, by slips body 3 It promotes along slideway, while slips body 3 moves downward, is also shunk to the center of circle, to clamp the drilling rod 10 at center, driller at this time Suspension system can be loosened, the weight of all drilling rods 10 is carried by 1 slope of slips pedestal.Rig floor personnel can operate liquid gas tong into Row shackle, and 10 column of drilling rod is pushed into drilling rod slot.Then driller operates tourist bus and comes downwards to drill pipe coupling, and rig floor personnel buckle well Elevator, after mentioning drill rod stand column to former suspending weight on tourist bus, operating console valve switch to reversed open position, all cylinders 5 are united at this time Piston rod is shunk in one movement, and slips body 3 is withdrawn along slideway, while slips body 3 moves upwards, is also opened, is stayed to outer ring Biggish annular clearance passes through by 10 column of drilling rod out.Tripping operation principle is identical as trip-out.
Since the present invention is a kind of air operated slips of reducing, so leading to 10 diameter of drilling rod when drill assembly changes When change, common cylinder 5 can not be met the requirements, and need to control cylinder 5 using pressure, when 5 pressure of cylinder reaches definite value It can just stop acting.

Claims (6)

1. the air operated slips that reducing uses, it is characterised in that: the slips pedestal 1 including two halves formula is connected with connecting pin 2, Tapering annular slot 9 is provided on the inside of slips pedestal 1, the top and bottom of tapering annular slot 9 are both provided with slideway, and slips body 3 is installed In the slideway of tapering annular slot 9, the inside of slips body 3 is covered with dentation slip insert 4, the piston rod of slips body 3 side and cylinder 5 It is connected, cylinder 5 is fixed on slips pedestal 1, and gas circuit slot 6 and pipe joint 8 is distributed in chassis outer side, and base upper surface is provided with spiral shell Pit.
2. reducing air operated slips according to claim 1, it is characterised in that: the slips pedestal 1 is two-half structure, It is connected with connecting pin 2.
3. reducing air operated slips according to claim 1, it is characterised in that: 1 inner wall of slips pedestal is equally spaced and has cone Shape annular groove 9 has the slideway of position-limiting action in slot.
4. reducing air operated slips according to claim 3, it is characterised in that: the tapering annular slot 9 of 1 inner wall of slips pedestal It is shunk along the outer ring of slips pedestal 1 to inner ring, and keeps biggish tilt angle with horizontal plane.
5. reducing air operated slips according to claim 3, it is characterised in that: 1 inner wall of slips pedestal is equally spaced three It a tapering annular slot 9 but is not limited to three, is varied in weight, can also suitably be increased according to what is carried.
6. reducing air operated slips according to claim 1, it is characterised in that: 5 both ends of cylinder respectively with slips pedestal 1 and Slips body 3 connects, and tilting action pushes dynamic slips body 3 and slidably reciprocates, and all cylinders 5 act on the drilling rod to guarantee clamping simultaneously 10 is placed in the middle.
CN201811217945.3A 2018-10-18 2018-10-18 A kind of reducing air operated slips suitable for more size tubing strings Pending CN109236206A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811217945.3A CN109236206A (en) 2018-10-18 2018-10-18 A kind of reducing air operated slips suitable for more size tubing strings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811217945.3A CN109236206A (en) 2018-10-18 2018-10-18 A kind of reducing air operated slips suitable for more size tubing strings

Publications (1)

Publication Number Publication Date
CN109236206A true CN109236206A (en) 2019-01-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811217945.3A Pending CN109236206A (en) 2018-10-18 2018-10-18 A kind of reducing air operated slips suitable for more size tubing strings

Country Status (1)

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CN (1) CN109236206A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112983351A (en) * 2021-05-20 2021-06-18 四川新为橡塑有限公司 Reducing flashboard rubber core

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201778692U (en) * 2010-08-30 2011-03-30 宝鸡石油机械有限责任公司 Pedal type half-hinging chuck for marine riser
CN203097755U (en) * 2012-04-26 2013-07-31 中国石化集团江汉石油管理局第四机械厂 Hydraulic bidirectional-control slip
CN103437720A (en) * 2013-08-29 2013-12-11 成都科盛石油科技有限公司 Clamping device
CN203702031U (en) * 2014-02-24 2014-07-09 徐州盾安重工机械制造有限公司 Sleeve clamping device
CN203879418U (en) * 2013-11-30 2014-10-15 江苏贵鑫石油装备有限公司 Hydraulic driven flashboard slip clamp with variable diameter
CN104131790A (en) * 2013-05-04 2014-11-05 卞康群 Rotary reducing oil pipe clamp
CN204152457U (en) * 2014-09-17 2015-02-11 姜晓东 A kind of rat hole drilling tool clamping device
US20160153254A1 (en) * 2012-02-27 2016-06-02 Bastion Technologies, Inc. Methods of Gripping a Tubular with a Slip Device
CN106499354A (en) * 2016-03-14 2017-03-15 徐工集团工程机械股份有限公司 Slip system and rig
CN108005614A (en) * 2017-11-27 2018-05-08 中国石油集团渤海钻探工程有限公司 Slip-type tubing string scraper
CN207363619U (en) * 2017-10-20 2018-05-15 兰州兰石石油装备工程股份有限公司 A kind of reducing support telescopic arm chuck of hydraulic control
CN108316868A (en) * 2017-01-16 2018-07-24 新疆如通石油技术服务有限公司 Mouse-hold tongs

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201778692U (en) * 2010-08-30 2011-03-30 宝鸡石油机械有限责任公司 Pedal type half-hinging chuck for marine riser
US20160153254A1 (en) * 2012-02-27 2016-06-02 Bastion Technologies, Inc. Methods of Gripping a Tubular with a Slip Device
US20170234095A9 (en) * 2012-02-27 2017-08-17 Bastion Technologies, Inc. Methods of Gripping a Tubular with a Slip Device
CN203097755U (en) * 2012-04-26 2013-07-31 中国石化集团江汉石油管理局第四机械厂 Hydraulic bidirectional-control slip
CN104131790A (en) * 2013-05-04 2014-11-05 卞康群 Rotary reducing oil pipe clamp
CN103437720A (en) * 2013-08-29 2013-12-11 成都科盛石油科技有限公司 Clamping device
CN203879418U (en) * 2013-11-30 2014-10-15 江苏贵鑫石油装备有限公司 Hydraulic driven flashboard slip clamp with variable diameter
CN203702031U (en) * 2014-02-24 2014-07-09 徐州盾安重工机械制造有限公司 Sleeve clamping device
CN204152457U (en) * 2014-09-17 2015-02-11 姜晓东 A kind of rat hole drilling tool clamping device
CN106499354A (en) * 2016-03-14 2017-03-15 徐工集团工程机械股份有限公司 Slip system and rig
CN108316868A (en) * 2017-01-16 2018-07-24 新疆如通石油技术服务有限公司 Mouse-hold tongs
CN207363619U (en) * 2017-10-20 2018-05-15 兰州兰石石油装备工程股份有限公司 A kind of reducing support telescopic arm chuck of hydraulic control
CN108005614A (en) * 2017-11-27 2018-05-08 中国石油集团渤海钻探工程有限公司 Slip-type tubing string scraper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112983351A (en) * 2021-05-20 2021-06-18 四川新为橡塑有限公司 Reducing flashboard rubber core

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Application publication date: 20190118

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