CN103510864A - Three-section hydraulic telescopic sleeved headframe - Google Patents
Three-section hydraulic telescopic sleeved headframe Download PDFInfo
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- CN103510864A CN103510864A CN201310516973.6A CN201310516973A CN103510864A CN 103510864 A CN103510864 A CN 103510864A CN 201310516973 A CN201310516973 A CN 201310516973A CN 103510864 A CN103510864 A CN 103510864A
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Abstract
The invention relates to the field of drilling of petroleum and natural gas, in particular to a three-section hydraulic telescopic sleeved headframe. The three-section hydraulic telescopic sleeved headframe adopts the structure of a K-shaped front opening; a plurality of oil cylinders for transformation of various working states of the headframe are mounted on the headframe; a racking platform is mounted in front of the headframe; oil cylinder centering devices are mounted at the back and on the side surface of the headframe; the three-section hydraulic telescopic sleeved headframe is characterized by being divided into three sections, namely an upper headframe section, a middle headframe section and a lower headframe section; the upper headframe section is matched with the inner wall of the middle headframe section; the middle headframe section is matched with the inner wall of the lower headframe section; a bearing device capable of enabling the headframe to keep the stretching state and performing remote control is mounted on the headframe; all the oil cylinders on the headframe can be in remote control; According to the invention, the provided three-section hydraulic telescopic sleeved headframe is more intelligent, meets requirements of more working conditions, is convenient for transportation and placement, and scientific and stable in structure, and improves the efficiency of drilling operation.
Description
Technical field
The present invention relates to oil and gas well drilling field, particularly a kind of three joint hydraulically extensible suit derricks.
Background technology
The derrick that domestic petroleum industry truck-mounted drilling rig is equipped with is at present the mast shape open-front tower that band jumps and restricts mostly, two joint hydraulically extensibles, derrick small angle inclination.Derrick hypomere upper end and overhead traveling crane always have 12 ropes that jump with quadruple board platform and are connected, the rope that jumps provides stability force to derrick, spring rope structure need to be at the ground anchor pit of ground configuration One's name is legion to provide support reaction, and the every rope that jumps needs to regulate degree of overhanging, have larger human error, the rope unbalance stress that causes jumping causes derrick unbalance stress.Owing to adopting spring rope structure, if increase clear derrick height, meet three joint thribble requirements, every section of derrick all needs to jump to restrict and stablizes, the rope quantity that can cause like this jumping further increases, and the increase of derrick paragraph number, and unbalance stress can have a strong impact on the stability of derrick, so traditional vehicle-mounted derrick is designed to two joint structures, effective height is 38 meters.The type derrick bulk is little, and traveling system is in the outside operation of derrick.Due to height-limited, the type safety platform can only discharge binodal drilling rod, causes that drillng operation rises, lower driller's condition is consuming time longer, and efficiency is lower, and the installation of top drive system is inconvenient, to such an extent as to rig does not possess stronger down-hole accident disposal ability.
Summary of the invention
The problem existing for prior art, goal of the invention of the present invention be to provide a kind of more intelligent, meet more multi-state demand, convenient transportation and place, improve drillng operation efficiency, scientific structure, stable three joint hydraulically extensibles suit derricks.
To achieve these goals, the technical solution used in the present invention is:
A kind of three joint hydraulically extensible suit derricks, its derrick geometry form is the open front of K shape, on derrick, be provided with for changing some oil cylinders of the various duties of derrick, derrick the place ahead is provided with quadruple board platform, derrick rear, side is provided with oil cylinder centralizer, described derrick is divided into three sections, be respectively derrick epimere, derrick stage casing, derrick hypomere, derrick epimere is engaged in derrick stage casing inwall, derrick stage casing is engaged in derrick hypomere inwall, on derrick, be provided with and can make derrick keep extended state and bogey that can Long-distance Control, all oil cylinders on derrick all can Long-distance Control, derrick adopts three sections of stretching structures, make derrick more convenient transportation and placement in satisfied more multi-state demand, also clear derrick height promotes greatly, and the quadruple board platform on derrick can discharge three joint drilling rods, minimizing drillng operation rises, lower driller's condition is consuming time, raises the efficiency, bogey and all oil cylinders except bogey all can Long-distance Control make derrick more intelligent, and prior art mast shape cantilever mast is with the rope that jumps, to make earth anchor could stablize, and this derrick is the open front of K shape, and the rope that need not jump just can be stablized.
As preferred version of the present invention, described derrick epimere is provided with for the spacing bogey A on derrick stage casing of lower derrick epimere of derrick extended state, and described derrick hypomere is provided with for the spacing bogey B on derrick hypomere in lower derrick stage casing of derrick extended state; On described bogey A, be provided with the carrier block that can be turned to crossbeam top, both sides, derrick stage casing, on described bogey B, be provided with the carrier block that can be turned to crossbeam below, both sides, derrick stage casing; By the carrier block that overturns out, carrier block is stuck between each crossbeam, under the deadweight in derrick epimere and derrick stage casing, derrick reaches steady-working state.
As preferred version of the present invention, described oil cylinder centralizer is arranged on respectively side crossbeam and the rear crossbeam below of derrick stage casing, derrick hypomere, it is comprised of centralizing bracket, torsion spring, the centralizing bracket front end that is arranged on crossbeam below, rear is provided with roller, and described centralizing bracket ejects and be engaged on the piston rod of corresponding jacking cylinder under derrick extended state; The arranging of oil cylinder centralizer effectively prevents radially bending of described jacking cylinder under derrick extended state.
As preferred version of the present invention, described quadruple board platform is arranged on the place ahead, described derrick stage casing, and quadruple board platform is used for discharging drilling rod, and derrick of the present invention adopts three sections of stretching structures, and clear derrick height is promoted greatly, and the quadruple board platform on derrick can discharge three joint drilling rods.
As preferred version of the present invention, described derrick hypomere rear is provided with the derrick back leg being hinged on vehicle frame, between outside, described derrick hypomere rear and vehicle frame, be hinged with for derrick telescoping and make derrick from travel position, become the lift oil tank of duty, under duty, between derrick hypomere the place ahead and base table top, be connected with front strut; Under derrick travel position, be in horizontal low level, when vehicle frame has been connected with the base of rig floor, controls lift oil tank and make derrick vertical, in connection, front strut is fixed derrick, and derrick enters duty.
As preferred version of the present invention, the epimere jacking cylinder of jacking derrick epimere is installed on described derrick stage casing, described derrick hypomere is provided with the stage casing jacking cylinder in jacking derrick stage casing, inner side, derrick Duan rear under described epimere jacking cylinder, stage casing jacking cylinder are installed in; In derrick drawing process, operating personnel's Long-distance Control epimere jacking cylinder, the running of stage casing jacking oil, can make derrick epimere and derrick stage casing under the effect of jacking cylinder, complete required displacement.
As preferred version of the present invention, described epimere jacking cylinder, stage casing jacking cylinder quantity more than or equal two, be installed in vertical direction, all level be equidistantly distributed under survey in the rear of derrick; This setup makes stressed being total to evenly between each section of derrick, and derrick is more stable.
As preferred version of the present invention, described bogey A is arranged on the mounting rail below between the crossbeam of derrick epimere both sides, crossbeam below, derrick epimere both sides is hinged with respectively left carrier block A, right carrier block A, described left carrier block A, between right carrier block A, by the connecting rod module forming that is hinged by some connecting rods, connect, described contiguous block module centers is hinged on mounting rail middle part, thereby be also provided with between described contiguous block module and described mounting rail, drive contiguous block block motion to control described left carrier block A, the stretching oil cylinder of outwards routing up or inwardly shrinking of right carrier block A, when needs derrick retracting epimere, operating personnel's Long-distance Control stretching oil cylinder is flexible, makes left carrier block A, right carrier block A retraction mounting rail below, then controls the running of epimere jacking cylinder and make in derrick epimere derrick retracting stage casing, when needs stretch out derrick epimere, operating process is contrary to the above.
As preferred version of the present invention, described bogey B comprises left carrier block B, right carrier block B, left oil cylinder, right oil cylinder, described left carrier block B, right carrier block B respectively same level height are symmetricly set on the both sides of derrick hypomere top exterior walls, one end of described left carrier block B, right carrier block B and the crossbeam of derrick hypomere both sides are hinged, and the other end is hinged by the outer wall of left oil cylinder, right oil cylinder and derrick hypomere both sides; When needs derrick retracting stage casing, the left oil cylinder of operating personnel's Long-distance Control, right oil cylinder stretch, make the both sides of left carrier block B, right carrier block B derrick retracting hypomere top exterior walls, controlling stage casing jacking cylinder running makes in the derrick retracting hypomere of derrick stage casing again, when needs stretch out derrick stage casing, operating process is contrary to the above.
As preferred version of the present invention, described epimere jacking cylinder, stage casing jacking cylinder are arranged on respectively on derrick stage casing, derrick hypomere by some U-shaped cards, simple in structure, stable, saving material.
The invention has the beneficial effects as follows:
1, all working process can be by tele-control system in terrestrial operation, more intelligent.
2, derrick adopts three sections of stretching structures, makes derrick more convenient transportation and placement in satisfied more multi-state demand.
3, derrick adopts three sections of stretching structures, and clear derrick height is promoted greatly, and the quadruple board platform on derrick can discharge three joint drilling rods, and minimizing drillng operation rises, lower driller's condition is consuming time, raises the efficiency.
4, it is flexible that derrick adopts hydraulic principle driving, and more stable, structure is more scientific.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of bogey A of the present invention.
Fig. 3 is the structural representation of bogey B of the present invention.
Retracted mode lateral view and crown view when Fig. 4 is horizontal positioned of the present invention.
Fig. 5 is travel position schematic diagram of the present invention.
Fig. 6 is working state schematic representation of the present invention.
Fig. 7 is stage casing of the present invention jacking cylinder, upper end jacking cylinder scheme of installation.
Fig. 8 is the oil cylinder centralizer structure schematic diagram on derrick of the present invention stage casing.
Fig. 9 is the oil cylinder centralizer structure schematic diagram on derrick hypomere of the present invention.
Figure 10 is the partial enlarged drawing at A place in Fig. 9.
Figure 11 is the structural representation under extended state of the present invention.
Mark in figure: 1-derrick epimere, 2-derrick stage casing, 3-oil cylinder centralizer, 4-derrick hypomere, 5-bogey A, 6-quadruple board platform, 7-bogey B, 8-derrick epimere left side crossbeam, 9-stretching oil cylinder, 10-connects bearing pin A, 11-mounting rail, 12-derrick epimere right side crossbeam, 13-carrier block bearing pin, the right carrier block A of 14-, right side, 15-derrick stage casing crossbeam, 16-connecting rod module, the left carrier block A of 17-, left side, 18-derrick stage casing crossbeam, 19-bar A, 20-bar B, 21-bar C, the left oil cylinder of 22-, the left carrier block B of 23-, 24-derrick hypomere left side crossbeam, 25-derrick hypomere right side crossbeam, the right carrier block B of 26-, the right oil cylinder of 27-, 28-derrick back leg, 29-base table top, 30-table top otic placode, 31-base, 32-vehicle frame ear seat, 33-connection wire rod, 34-connects bearing pin C, 35-lift oil tank, 36-vehicle frame, 37-carriage base, 38-bar D, 39-front strut, 40-connects bearing pin D, 41-stage casing jacking cylinder, 42-epimere jacking cylinder, 43-U shape card, 44-oil cylinder urceolus, 45-piston rod, 46-torsion spring, 47-roller, 48-centralizing bracket, 49-connects bearing pin B.
The specific embodiment
Below in conjunction with embodiment and the specific embodiment, the present invention is described in further detail.But this should be interpreted as to the scope of the above-mentioned theme of the present invention only limits to following embodiment, all technology realizing based on summary of the invention of the present invention all belong to scope of the present invention.
embodiment 1
A kind of three joint hydraulically extensible suit derricks, its derrick geometry form is the open front of K shape, on derrick, be provided with for changing some oil cylinders of the various duties of derrick, derrick the place ahead is provided with quadruple board platform 6, derrick rear, side is provided with oil cylinder centralizer 3, described derrick is divided into three sections, be respectively derrick epimere 1, derrick stage casing 2, derrick hypomere 4, derrick epimere 1 is engaged in derrick stage casing 2 inwalls, derrick stage casing 2 is engaged in derrick hypomere 4 inwalls, on derrick, be provided with and can make derrick keep extended state and bogey that can Long-distance Control, all oil cylinders on derrick all can Long-distance Control.
In the present embodiment, described derrick epimere 1 is provided with for the spacing bogey A5 on derrick stage casing 2 of lower derrick epimere 1 of derrick extended state, and described derrick hypomere 4 is provided with for the spacing bogey B7 on derrick hypomere 4 in lower derrick stage casing 2 of derrick extended state; On described bogey A5, be provided with the carrier block that can be turned to crossbeam top, both sides, derrick stage casing, on described bogey B7, be provided with the carrier block that can be turned to crossbeam below, both sides, derrick stage casing.
In the present embodiment, described oil cylinder centralizer 3 is arranged on respectively derrick stage casing 2, the side crossbeam of derrick hypomere 1 and rear crossbeam below, it is by centralizing bracket 48, torsion spring 46 forms, centralizing bracket 48 front ends that are arranged on crossbeam below, rear are provided with roller 47, described centralizing bracket 48 ejects and is engaged on the piston rod 45 of corresponding jacking cylinder under derrick extended state, when derrick is during in retracted mode, oil cylinder centralizer 3 is in retracted mode, in jacking derrick stage casing 2 and derrick epimere 1 process, when oil cylinder centralizer 3 retracted modes no longer limited, oil cylinder centralizer 3 under torsion spring 46 effect automatic turning to operating position, the oil cylinder centralizer 3 of rear and the side corresponding piston rod 45 of righting that cooperatively interacts.
In the present embodiment, described quadruple board platform 6 is arranged on 2 the place aheads, described derrick stage casing, the front end of quadruple board platform 6 one end and derrick stage casing left side crossbeam 18 and right side, derrick stage casing crossbeam 15 is hinged, the other end is hinged on the below of derrick stage casing 2 the above last articulated position by oil cylinder, the side length of quadruple board platform 6 is less than the length of this oil cylinder.
In the present embodiment, described derrick hypomere 4 rears are provided with the derrick back leg 28 being hinged on vehicle frame, between described derrick hypomere 4 outsides, rear and vehicle frame 36, be hinged with for derrick telescoping and make derrick from travel position, become the lift oil tank 35 of duty, under duty, between derrick hypomere 4 the place aheads and base table top 29, be connected with front strut 39, when the derrick under travel position is prepared to be converted to duty, vehicle frame 36 is placed in carriage base 37, carriage base 37 is connected with base by connecting bearing pin C34, between vehicle frame 36 and base 31, by connection wire rod 33, be connected, base 31 is arranged on drilling well base, outside being fixedly connected with by bar D38 between the vehicle frame ear seat 32 at connection wire rod 33 tops and vehicle frame, be also hinged on derrick back leg 28, when lift oil tank 35 derrick telescopings arrive duty, the front strut 39 being connected between derrick hypomere 4 the place aheads and base table top 29 is hinged on table top otic placode 30 by connecting bearing pin D40, table top otic placode 30 is arranged on the upper surface of base table top 29, described connected mode symmetry is in the left and right sides of derrick hypomere 4, can be without guy wire after having connected, derrick reaches vertical stand-up state.
In the present embodiment, the epimere jacking cylinder 42 of jacking derrick epimere 1 is installed on described derrick stage casing 2, described derrick hypomere 4 is provided with the stage casing jacking cylinder 41 in jacking derrick stage casing 2, described epimere jacking cylinder 42, inner side, derrick Duan rear under stage casing jacking cylinder 41 is installed in, described epimere jacking cylinder 42, stage casing jacking cylinder 41 quantity more than or equal two, be installed in vertical direction, under being equidistantly distributed in, equal level surveys in the rear of derrick, described epimere jacking cylinder 42, stage casing jacking cylinder 41 is arranged on respectively derrick stage casing 2 by some U-shaped cards 43, on derrick hypomere 4, the U-shaped card 43 horizontal card section of living in jacking cylinders 42, the oil cylinder urceolus 44 of stage casing jacking cylinder 41, described epimere jacking cylinder 42, the piston rod 45 of stage casing jacking cylinder 41 is connected in corresponding derrick section.
In the present embodiment, described bogey A5 is arranged on mounting rail 11 belows between the crossbeam of derrick epimere both sides, derrick epimere 1 crossbeam below, both sides is hinged with respectively left carrier block A17, right carrier block A14, described left carrier block A17, the connecting rod module 16 forming by being hinged by some connecting rods between right carrier block A14 connects, described contiguous block module centers is hinged on mounting rail 11 middle parts, thereby be also provided with between described contiguous block module and described mounting rail 11, drive contiguous block block motion to control described left carrier block A17, the stretching oil cylinder 9 of outwards routing up or inwardly shrinking of right carrier block A14, connecting rod is hinged by connecting bearing pin A10 each other, left carrier block A17, right carrier block A14 is hinged on derrick epimere left side crossbeam 8 by carrier block bearing pin 13 respectively, crossbeam 12 belows, derrick epimere right side, derrick extended state is fixedly time, left carrier block is routed up and is stuck between derrick stage casing left side crossbeam 18 and derrick epimere left side crossbeam 8, right carrier block is routed up and is stuck between right side, derrick stage casing crossbeam 15 and derrick epimere right side crossbeam 12, in described connecting rod module 16, / 4th places and mounting rail 11 middle parts of bar A19 are hinged, hinged by bar B20 between 1/2nd places of bar A19 and left carrier block, hinged by bar C21 between GanA19 end and right carrier block, bar C21 is identical with bar B20 length, hinged by stretching oil cylinder 9 between the other end of bar A19 and mounting rail 11, stretching oil cylinder 9 setting parties are to forever parallel with bar B20 in a vertical plane.
In the present embodiment, described bogey B7 comprises left carrier block B23, right carrier block B26, left oil cylinder 22, right oil cylinder 27, described left carrier block B23, right carrier block B26 respectively same level height is symmetricly set on the both sides of derrick hypomere 4 top exterior walls, described left carrier block B23, the crossbeam of right carrier block B26 one end and derrick hypomere 4 both sides is hinged by carrier block bearing pin 13, the other end is by left oil cylinder 22, right oil cylinder 27 is hinged with the outer wall of derrick hypomere 4 both sides, left oil cylinder 22, right oil cylinder 27 is hinged by the outer wall of connection bearing pin B49 and derrick hypomere 4 both sides, derrick extended state is fixedly time, left carrier block is routed up and is stuck between derrick hypomere left side crossbeam 24 and left side, derrick stage casing crossbeam 18, right carrier block is routed up and is stuck between derrick hypomere right side crossbeam 25 and right side, derrick stage casing crossbeam 15.
Claims (10)
1. a joint hydraulically extensible is set with derrick, its derrick geometry form is the open front of K shape, on derrick, be provided with for changing some oil cylinders of derrick duty, derrick the place ahead is provided with quadruple board platform, derrick rear, side is provided with oil cylinder centralizer, it is characterized in that, described derrick is divided into three sections, be respectively derrick epimere, derrick stage casing, derrick hypomere, derrick epimere is engaged in derrick stage casing inwall, derrick stage casing is engaged in derrick hypomere inwall, on derrick, be provided with and can make derrick keep extended state and bogey that can Long-distance Control, all oil cylinders on derrick all can Long-distance Control.
2. a kind of three joint hydraulically extensibles according to claim 1 are set with derricks, it is characterized in that, described derrick epimere is provided with for the spacing bogey A on derrick stage casing of lower derrick epimere of derrick extended state, and described derrick hypomere is provided with for the spacing bogey B on derrick hypomere in lower derrick stage casing of derrick extended state;
On described bogey A, be provided with the carrier block that can be turned to crossbeam top, both sides, derrick stage casing, on described bogey B, be provided with the carrier block that can be turned to crossbeam below, both sides, derrick stage casing.
3. a kind of three joint hydraulically extensibles according to claim 1 are set with derricks, it is characterized in that, described oil cylinder centralizer is arranged on respectively side crossbeam and the rear crossbeam below of derrick stage casing, derrick hypomere, it is comprised of centralizing bracket, torsion spring, the centralizing bracket front end that is arranged on crossbeam below, rear is provided with roller, and described centralizing bracket ejects and is engaged on the piston rod of corresponding jacking cylinder under derrick extended state.
4. a kind of three joint hydraulically extensible suit derricks according to claim 1, is characterized in that, described quadruple board platform is arranged on the place ahead, described derrick stage casing.
5. a kind of three joint hydraulically extensibles according to claim 1 are set with derricks, it is characterized in that, described derrick hypomere rear is provided with the derrick back leg being hinged on vehicle frame, between outside, described derrick hypomere rear and vehicle frame, be hinged with for derrick telescoping and make derrick from travel position, become the lift oil tank of duty, under duty, between derrick hypomere the place ahead and base table top, be connected with front strut.
6. according to a kind of three joint hydraulically extensible suit derricks described in claim 1 or 2 or 3 or 4 or 5, it is characterized in that, the epimere jacking cylinder of jacking derrick epimere is installed on described derrick stage casing, described derrick hypomere is provided with the stage casing jacking cylinder in jacking derrick stage casing, inner side, derrick Duan rear under described epimere jacking cylinder, stage casing jacking cylinder are installed in.
7. a kind of three joint hydraulically extensibles according to claim 6 are set with derricks, it is characterized in that, described epimere jacking cylinder, stage casing jacking cylinder quantity more than or equal two, be installed in vertical direction, all level be equidistantly distributed under survey in the rear of derrick.
8. a kind of three joint hydraulically extensibles according to claim 2 are set with derricks, it is characterized in that, described bogey A is arranged on the mounting rail below between the crossbeam of derrick epimere both sides, crossbeam below, derrick epimere both sides is hinged with respectively left carrier block A, right carrier block A, described left carrier block A, between right carrier block A, by the connecting rod module forming that is hinged by some connecting rods, connect, described contiguous block module centers is hinged on mounting rail middle part, thereby be also provided with between described contiguous block module and described mounting rail, drive contiguous block block motion to control described left carrier block A, the stretching oil cylinder of outwards routing up or inwardly shrinking of right carrier block A.
9. a kind of three joint hydraulically extensibles according to claim 2 are set with derricks, it is characterized in that, described bogey B comprises left carrier block B, right carrier block B, left oil cylinder, right oil cylinder, described left carrier block B, right carrier block B respectively same level height are symmetricly set on the both sides of derrick hypomere top exterior walls, one end of described left carrier block B, right carrier block B and the crossbeam of derrick hypomere both sides are hinged, and the other end is hinged by the outer wall of left oil cylinder, right oil cylinder and derrick hypomere both sides.
10. a kind of three joint hydraulically extensible suit derricks according to claim 6, is characterized in that, described epimere jacking cylinder, stage casing jacking cylinder are arranged on respectively on derrick stage casing, derrick hypomere by some U-shaped cards.
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| CN201310516973.6A CN103510864B (en) | 2013-10-28 | 2013-10-28 | One kind three saves hydraulically extensible suit derrick |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105178874A (en) * | 2015-08-17 | 2015-12-23 | 宝鸡石油机械有限责任公司 | Telescoping derrick with great width in bottom |
| CN105909179A (en) * | 2016-05-31 | 2016-08-31 | 南阳二机石油装备集团股份有限公司 | Automatic folding racking platform for drilling rig mast |
| CN106050162A (en) * | 2016-05-31 | 2016-10-26 | 南阳二机石油装备集团股份有限公司 | Automatic centering device for piston rods of telescopic hydraulic cylinders of drilling rig mast |
| CN109611031A (en) * | 2018-10-18 | 2019-04-12 | 中石化四机石油机械有限公司 | Hydraulic telescopic derrick |
| CN110029946A (en) * | 2019-05-30 | 2019-07-19 | 宝鸡瑞通石油装备有限公司 | A kind of installation method of vertical derrick telescoping |
| CN111980591A (en) * | 2020-09-01 | 2020-11-24 | 中国石油天然气集团有限公司 | Hydraulic lifting type three-section derrick for oil field trial maintenance operation |
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| CN201778661U (en) * | 2010-08-13 | 2011-03-30 | 宝鸡石油机械有限责任公司 | Hydraulic-cylinder-lifted slingshot derrick substructure |
| CN202578531U (en) * | 2012-04-28 | 2012-12-05 | 辽宁石油机械制造有限公司 | Centralizer for telescopic oil cylinder of derrick |
| CN203097737U (en) * | 2012-09-18 | 2013-07-31 | 国民油井华高石油设备（上海）有限公司 | Telescopic integral hoisting type headframe device |
| CN203531759U (en) * | 2013-10-28 | 2014-04-09 | 四川宏华石油设备有限公司 | Three-section hydraulic telescopic headframe |
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| CN105178874A (en) * | 2015-08-17 | 2015-12-23 | 宝鸡石油机械有限责任公司 | Telescoping derrick with great width in bottom |
| CN105909179A (en) * | 2016-05-31 | 2016-08-31 | 南阳二机石油装备集团股份有限公司 | Automatic folding racking platform for drilling rig mast |
| CN106050162A (en) * | 2016-05-31 | 2016-10-26 | 南阳二机石油装备集团股份有限公司 | Automatic centering device for piston rods of telescopic hydraulic cylinders of drilling rig mast |
| CN109611031A (en) * | 2018-10-18 | 2019-04-12 | 中石化四机石油机械有限公司 | Hydraulic telescopic derrick |
| CN110029946A (en) * | 2019-05-30 | 2019-07-19 | 宝鸡瑞通石油装备有限公司 | A kind of installation method of vertical derrick telescoping |
| CN111980591A (en) * | 2020-09-01 | 2020-11-24 | 中国石油天然气集团有限公司 | Hydraulic lifting type three-section derrick for oil field trial maintenance operation |
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