CN104234652A - Movable oil pipe sucker rod shearing device - Google Patents
Movable oil pipe sucker rod shearing device Download PDFInfo
- Publication number
- CN104234652A CN104234652A CN201310240772.8A CN201310240772A CN104234652A CN 104234652 A CN104234652 A CN 104234652A CN 201310240772 A CN201310240772 A CN 201310240772A CN 104234652 A CN104234652 A CN 104234652A
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- Prior art keywords
- oil pipe
- cylinder body
- sucker rod
- knife rest
- shearing
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- 238000010008 shearing Methods 0.000 title abstract 8
- 241000191291 Abies alba Species 0.000 claims abstract description 8
- 208000019300 CLIPPERS Diseases 0.000 claims description 27
- 208000021930 chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids Diseases 0.000 claims description 27
- 239000000725 suspension Substances 0.000 claims description 9
- 239000003921 oil Substances 0.000 description 31
- 238000000034 method Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000005086 pumping Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Shearing Machines (AREA)
Abstract
The invention relates to a movable oil pipe sucker rod shearing device which comprises a shearing device cylinder body (1), a piston rod (2), an upper shearing body (3), a lower shearing body (4), a knife rest (5), a fixing pin (6) and a fixing support (7), wherein one end of the piston rod (2) is connected with a piston of the shearing device cylinder body (1), and the other end of the piston rod is connected with the upper shearing body (3) through a bolt; the lower scissors body (4) is connected with the knife rest (5) through a fixing pin (6); the cutter frame (5) is fixed on the shear cylinder body (1) through flange bolts, the shear cylinder body (1) is a hydraulic cylinder body, and the fixing support (7) is provided with bolt holes which are in matched connection with the large four-way flange of the Christmas tree. The device is mainly used for shearing off the oil pipe or the sucker rod when the oil pipe or the sucker rod is clamped on a well head during blowout and emergency and blowout rescue operation cannot be carried out.
Description
Technical field
The present invention relates to a kind of oil field emergency repair device, particularly relate to emergency repair corollary apparatus when going wrong of a kind of oil extraction in oil field tree well mouth oil pipe or sucker rod and movable oil pipe sucker rod shear.
Background technology
At present, in oil and gas development operation, because the reasons such as down-hole situation is complicated, facility is aging, misoperation cause gas blowout accident, because oil pipe or sucker rod ejection are stuck on well head in accident process, in operation process because of oil pipe or sucker rod stuck on well head, cannot be up and down, lower step work cannot be carried out.In these two kinds of situations all because of oil pipe or sucker rod stuck at well head, hamper and rob spray and to speedily carry out rescue work the enforcement of operation, finally cause gas blowout accident to dispose.For these two kinds of situations, domestic pharmaceutical industry there is no in the industry correspondingly effectively to be robbed spray and to speedily carry out rescue work emergency measure and rob spray instrument, cannot carry out timely and effectively cutting off the oil pipe or sucker rod that are stuck in well head, only carry out speedily carrying out rescue work operation by manpower and handwork, personnel hazard's coefficient is high, and cost is high, and it is long to rob the spray time, often delay the best and rob the spray time, even cause the further expansion of gas blowout accident.Thus process oil pipe or pumping rod fasterner well gas blowout accident how fast, efficient, safely, become the problem of our petroleum industry emergency person research.
Summary of the invention
For the defect that above-mentioned prior art exists, the technical problem to be solved in the present invention is to provide a kind of movable oil pipe sucker rod shear, in gas blowout accident, fast and effeciently cut off oil pipe or sucker rod after oil pipe or pumping rod fasterner well.
For solving the problems of the technologies described above, movable oil pipe sucker rod shear of the present invention, be made up of clipper cylinder body 1, piston rod 2, upper scissor body 3, lower scissors body 4, knife rest 5, steady pin 6 and fixed support 7, wherein, above-mentioned piston rod 2 one end is connected with the piston of clipper cylinder body 1, and its other end and upper scissor body 3 are bolted; Above-mentioned lower scissors body 4 is connected by steady pin 6 with knife rest 5; Above-mentioned knife rest 5 is fixed on clipper cylinder body 1 by flange bolt, and above-mentioned clipper cylinder body 1 is hydraulic cylinder, and above-mentioned fixed support 7 is provided with the bolt hole be connected that to match with Christmas tree big four joint flange.
Between above-mentioned piston rod 2 and clipper cylinder body 1, O-ring seal is set.
Above-mentioned knife rest 5 there are two suspension ring, clipper cylinder body 1 have suspension ring.
The blade face of above-mentioned upper scissor body 3 and lower scissors body 4 is V-type.
Compared with present technical scheme, movable oil pipe sucker rod shear of the present invention can meet the oil pipe of oil field all size model or the processing demands of pumping rod fasterner well gas blowout accident, solve the difficult problem that oil pumping rod of oil tube Ka Jing process is difficult, for scene provide a kind of safety, reliable, quick, practical, effectively shear blowout control device, meet field produces demand; The present invention adopts hydraulic power, can carry out remote control, handling safety; Be fixedly connected with Christmas tree big four joint bolt by fixed support, ensure that operation process is solid and reliable; Lower scissors body can revolve turnback around steady pin, flexible and convenient operation.
Accompanying drawing explanation
Fig. 1 is the structure chart of movable oil pipe sucker rod shear of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, movable oil pipe sucker rod shear of the present invention is made up of clipper cylinder body 1, piston rod 2, upper scissor body 3, lower scissors body 4, knife rest 5, steady pin 6 and fixed support 7.Above-mentioned piston rod 2 one end is connected with the piston of clipper cylinder body 1 and has rubber sealing, the other end and upper scissor body 3 are bolted, entered the piston downward scissor body 4 direction motion promoting clipper cylinder body 1 in clipper cylinder body 1 by the inlet 8 on clipper cylinder body 1 by highly pressurised liquid, piston rod 2 and upper scissor body 3 is driven slowly to advance in scissor body 4 direction downwards, lower scissors body 4 is arranged on knife rest 5 by two steady pins 6, and knife rest 5 is bolted on clipper cylinder body 1; Maintained static by the scissor body 4 direction motion downwards of upper scissor body 3 and lower scissors body 4, a pair lateral external forces is formed to the oil pipe be placed between upper scissor body 3 and lower scissors body 4 or sucker rod, make oil pipe or sucker rod generation sliding deformation, realize cutting off oil pipe or sucker rod;
The blade face of above-mentioned upper scissor body 3 is vertical with soffit, and without chamfering;
The blade face of above-mentioned lower scissors body 4 is vertical with upper surface, and without chamfering;
The soffit of above-mentioned upper scissor body 3 and the upper surface of lower scissors body 4 are two parallel planes of close proximity;
The blade face of above-mentioned upper scissor body 3 and the blade face of lower scissors body 4 are V-type;
Above-mentioned knife rest 5 is U-shaped;
When above-mentioned lower scissors body 4 is fixed on knife rest 5 with a steady pin 6, lower scissors body 4 can carry out 180 degree of rotations around steady pin 6, is convenient to install, operate.
Above-mentioned clipper cylinder body 1 is hydraulic cylinder.
Above-mentioned knife rest 5 has on two suspension ring, clipper cylinder body 1 and have suspension ring.
Above-mentioned fixed support 7 is provided with the bolt hole be connected that to match with 250 Christmas tree big four joint flanges.
Above-mentioned fixed support 7 is provided with the bolt hole be connected that to match with 350 Christmas tree big four joint flanges.
The course of work of movable oil pipe sucker rod shear of the present invention is:
In work progress or when there is thorn leakage and gas blowout accident, first see whether the position that oil pipe or sucker rod are stuck in well head because of which kind of reason possesses job execution, thorn leaks or whether the position of blowout affects, the clear and definite equipment operating flow process of construction operation, dangerous matter sources, carry out every emergency preplan, comprise blowout, fire or H
2s leaks, and enhances your vigilance, carries out prevention work.
First, inlet 8 on clipper cylinder body 1 is connected with hydraulic control system hydraulic line with inlet 9, and hydraulic control system is settled in the safety zone away from accident well head, check that whether sealing performance is intact, primer fluid pressure control system makes the inlet 9 of highly pressurised liquid on clipper cylinder body 1 enter in clipper cylinder body 1, promote piston driving piston rod and upper scissor body 3 and move away from the direction of lower scissors body 4, supreme scissor body 3 shrinks completely;
Then be connected with hanging device (crane) by the suspension ring of three limb riggings, the bow shackle of the other end is connected with suspension ring on the suspension ring of two on knife rest 5 and clipper cylinder body 1, is sling by movable oil pipe sucker rod shear with crane; Extract a steady pin 6, lower scissors body 4 is revolved turnback around a remaining steady pin 6;
Then Christmas tree big four joint is removed with upper part, be bolted to connection by the bolt hole on fixed support 7 and Christmas tree big four joint, lower scissors body 4 is revolved turnback around a remaining steady pin 6, makes scissor body homing, extract steady pin 6 is installed back original position;
Operation hydraulic control system makes the inlet 8 of highly pressurised liquid on clipper cylinder body 1 enter the piston downward scissor body 4 direction motion of promotion clipper cylinder body 1 in clipper cylinder body 1, piston rod 2 and upper scissor body 3 is driven slowly to advance in scissor body 4 direction downwards, lower scissors body 4 maintains static, a pair lateral external forces is formed to the oil pipe be placed between upper scissor body 3 and lower scissors body 4 or sucker rod, make oil pipe or sucker rod generation shear strain, realize cutting off oil pipe or sucker rod.
Claims (4)
1. a movable oil pipe sucker rod shear, be made up of clipper cylinder body (1), piston rod (2), upper scissor body (3), lower scissors body (4), knife rest (5), steady pin (6) and fixed support (7), it is characterized in that: described piston rod (2) one end is connected with the piston of clipper cylinder body (1), its other end and upper scissor body (3) are bolted; Described lower scissors body (4) is connected by steady pin (6) with knife rest (5); Described knife rest (5) is fixed on clipper cylinder body (1) by flange bolt, and described clipper cylinder body (1) is hydraulic cylinder, and described fixed support (7) is provided with the bolt hole be connected that to match with Christmas tree big four joint flange.
2. movable oil pipe sucker rod shear according to claim 1, is characterized in that: arrange O-ring seal between described piston rod (2) and clipper cylinder body (1).
3. movable oil pipe sucker rod shear according to claim 1, is characterized in that: described knife rest (5) has two suspension ring, clipper cylinder body (1) has suspension ring.
4. movable oil pipe sucker rod shear according to claim 1, is characterized in that: the blade face of described upper scissor body (3) and lower scissors body (4) is V-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310240772.8A CN104234652A (en) | 2013-06-18 | 2013-06-18 | Movable oil pipe sucker rod shearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310240772.8A CN104234652A (en) | 2013-06-18 | 2013-06-18 | Movable oil pipe sucker rod shearing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104234652A true CN104234652A (en) | 2014-12-24 |
Family
ID=52223459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310240772.8A Pending CN104234652A (en) | 2013-06-18 | 2013-06-18 | Movable oil pipe sucker rod shearing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104234652A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6244336B1 (en) * | 2000-03-07 | 2001-06-12 | Cooper Cameron Corporation | Double shearing rams for ram type blowout preventer |
| CN201024965Y (en) * | 2007-04-19 | 2008-02-20 | 中国石油化工股份有限公司江苏油田分公司石油工程技术研究院 | Pumping and drawing cutting ejection preventer |
| CN101427003A (en) * | 2006-04-25 | 2009-05-06 | 国民油井华高有限合伙公司 | Apparatus and method for severing a wellbore tubular |
| CN201618885U (en) * | 2009-11-20 | 2010-11-03 | 任丘市博鑫石油机械配件有限公司 | Hydraulic cutter of pumping rod |
| US20120067563A1 (en) * | 2010-09-17 | 2012-03-22 | National Oilwell Varco, L.P. | Casing friendly, shearable hardbands and systems and methods for shearing same |
| CN203394402U (en) * | 2013-06-18 | 2014-01-15 | 中国石油天然气股份有限公司 | Movable oil pipe sucker rod shearing device |
-
2013
- 2013-06-18 CN CN201310240772.8A patent/CN104234652A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6244336B1 (en) * | 2000-03-07 | 2001-06-12 | Cooper Cameron Corporation | Double shearing rams for ram type blowout preventer |
| CN101427003A (en) * | 2006-04-25 | 2009-05-06 | 国民油井华高有限合伙公司 | Apparatus and method for severing a wellbore tubular |
| CN201024965Y (en) * | 2007-04-19 | 2008-02-20 | 中国石油化工股份有限公司江苏油田分公司石油工程技术研究院 | Pumping and drawing cutting ejection preventer |
| CN201618885U (en) * | 2009-11-20 | 2010-11-03 | 任丘市博鑫石油机械配件有限公司 | Hydraulic cutter of pumping rod |
| US20120067563A1 (en) * | 2010-09-17 | 2012-03-22 | National Oilwell Varco, L.P. | Casing friendly, shearable hardbands and systems and methods for shearing same |
| CN203394402U (en) * | 2013-06-18 | 2014-01-15 | 中国石油天然气股份有限公司 | Movable oil pipe sucker rod shearing device |
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| C06 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141224 |
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| RJ01 | Rejection of invention patent application after publication |