CN201430369Y - Hydraulic shear device for petroleum logging and perforated cables - Google Patents
Hydraulic shear device for petroleum logging and perforated cables Download PDFInfo
- Publication number
- CN201430369Y CN201430369Y CN2009200824256U CN200920082425U CN201430369Y CN 201430369 Y CN201430369 Y CN 201430369Y CN 2009200824256 U CN2009200824256 U CN 2009200824256U CN 200920082425 U CN200920082425 U CN 200920082425U CN 201430369 Y CN201430369 Y CN 201430369Y
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- shear
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- oil cylinder
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- clamping
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Abstract
A hydraulic shear device for petroleum logging and perforated cables relates to the technical field of remote shear for logging and perforated cables with a hydraulic mechanism. The hydraulic shear device comprises a control device and a clamping shear device, wherein the control device consists of a manual hydraulic pump and a control valve, and the clamping shear device comprises a support seat,a cable rack body and a shear fuel tank. The hydraulic shear device for petroleum logging and perforated cables, quickly clamping and shearing, is designed by a hydraulic remote control technique. The hydraulic shear device can solve the problem of the prior art that when emergent situations occur, cables in wells have to be cut manually, which easily results in the events of loss of life and personal injuries and equipment damage. The adoption of a hydraulic pipeline connected with the shear mechanism makes the device have the characteristics of remote operation, big shear force and quick shear.
Description
Technical field:
A kind of oil well logging perforation cable hydraulic cutting device is used to implement the shearing of long-range well logging perforation cable, relates to the employing hydraulic mechanism, and well logging perforation cable is implemented long-range technical field of cutting off.
Background technology:
In the prior art, in order to understand the down-hole situation that is drilled to well, design according to drilling well, need test the down-hole situation in certain well depth position, the logger that uses when implementing test need adopt private cable with the tester G.I.H, in addition in the prior art, and in order to increase the oil gas well yield of having bored, also will carry out the perforating job of down-hole payzone, purpose is in order to increase the length of produce oil aerogenesis passage; Because carrying out downhole testing or carrying out perforating job all is to carry out in having the layer position of produce oil or aerogenesis, so just might be in the process of implementing operation, the gas stream on stratum is emerged in large numbers well head suddenly, just need close well head immediately when this thing happens, in case cause gas blowout accident, but, because well logging or perforation cable are also in the down-hole, well head just closes not hold together, therefore need under urgent situation, will log well or perforation cable is cut off, so that guarantee closing fully of well head, reach the purpose of well control, the shearing equipment of present existing oil well logging perforation cable is that Purely mechanical or hydraulic pressure are closely operated, its problem is: existing cutting implement does not have the cable fixture, therefore, when emergency takes place, have only by manually pushing down cable on one side to well head, one side by the existing tool scissors cable that cuts off the power supply, this mode of operation only could realize promptly cutting off cable having under the situation of enough time, safe escape again, when in case of emergency, irrealizable often, and when shearing cable, cause casualties easily and the accident of device damage, more seriously, cable can not in time be cut off, and well head can't be closed, and finally causes serious gas blowout accident.
Summary of the invention:
The purpose of this utility model is at the deficiencies in the prior art, adopts the technology of hydraulic pressure remote control, has designed a kind of oil well logging perforation cable hydraulic cutting device that has quick clamping and cut off.
The technical solution of the utility model is as follows: the utility model comprises control device and clamps shear, it is characterized in that: control device is made of hydraulic hand-pump and control valve, between hydraulic hand-pump and the control valve, be connected by hydraulic tube between control valve and the clamping shear, clamping shear comprises supporting base, cable support body and shears oil cylinder, shear in the oil cylinder is to shear oil cylinder piston, the cylindrical of shearing oil cylinder is a clamping oil cylinder cylinder sleeve, is provided with the clamping oil cylinder piston in the clamping oil cylinder cylinder sleeve;
The front end of described shearing oil cylinder piston is provided with shear-blade, shears oil cylinder piston by the return spring return;
Front end at described clamping oil cylinder piston is connected with cable cleat, and the front end face of cable cleat has the inclined-plane of guiding;
Described clamping oil cylinder piston is by the return spring return;
Described support plinth is a cuboid, is provided with the cable guide skewed slot at support plinth cable inlet one end;
Described cable support body is arranged on the corresponding surface of cable cleat, is provided with in the cable support body and the corresponding arc-shaped concave of shear-blade;
For the sealed hydraulic oil cylinder, shear on the cylindrical of oil cylinder piston, the interior circle and the cylindrical of clamping oil cylinder piston end face be respectively arranged with O-ring seals;
Before implementing well logging or perforating job, hydraulic line with this device connects earlier, if in the process of construction operation, find to have abnormal conditions, immediately this device is placed on well head, and cable is inserted the cable guide skewed slot of this device, then, operating personnel leave well head immediately, start hydraulic hand-pump, then by control valve elder generation fuel feeding in clamping oil cylinder cylinder sleeve, promote the clamping oil cylinder piston and travel forward, cable is clamped in the centre of cable support body, fuel feeding in shearing oil cylinder then, promoting to shear oil cylinder piston travels forward, make shear-blade implement to shear to the cable that has clamped, cable cutter is had no progeny, fuel cut-off, clamping oil cylinder piston and shearing oil cylinder piston are return original position respectively under the effect of return spring, after removing the effect of clamping, the cable of being cut off will fall into the down-hole, starts the task that wellhead blowout preventor realizes cutting out fully well head then.
The beneficial effects of the utility model are: this device adopts is hydraulic line and being connected of cutting mechanism, remote operation beyond can realizing 10 meters, when emergency takes place, shear can be set fast, leave well head then at once, avoid personnel under adventurous situation, to continue to stay the operation that well head enforcement is manually cut off to greatest extent, therefore can guarantee operating personnel's safety, and, this device adopts hydraulic pressure to cut off, its dynamics of cutting off than manually cut off operate big many, so the speed of cutting off is very fast, can cut off cable very soon and realize the task of closing well, avoid because the untimely bigger loss that causes of closing well.
Description of drawings:
Fig. 1 is connection of the present utility model and cutting mechanism cross-sectional view.
Specific implementation method:
The technical solution of the utility model is as follows: the utility model comprises control device and clamps shear, control device is made of hydraulic hand-pump 3 and control valve 1, hydraulic hand-pump 3 is connected by hydraulic tube 2 with control valve 1, control valve 1 is connected with the clamping shear with 8 by hydraulic tube 7, clamping shear comprises supporting base 4, cable support body 17 and shears oil cylinder 9, the centre of shearing oil cylinder 9 is to shear oil cylinder piston 10, be provided with shear-blade 6 at the front end of shearing oil cylinder piston 10, shear oil cylinder piston 10 by return spring 12 returns; At the cylindrical of shearing oil cylinder 9 is clamping oil cylinder cylinder sleeve 11, be provided with clamping oil cylinder piston 13 in the clamping oil cylinder cylinder sleeve 11, front end at clamping oil cylinder piston 13 is connected with cable cleat 5, and the front end face of cable cleat 5 has the inclined-plane of guiding, and clamping oil cylinder piston 13 is by return spring 14 returns; Support plinth 4 is a cuboid, be provided with cable guide skewed slot 15 at support plinth 4 cable inlets one end, cable support body 17 is arranged on the corresponding surface of cable cleat 5, in cable support body 17, be provided with and shear-blade 6 corresponding arc-shaped concaves 16, for the sealed hydraulic oil cylinder, shear on the cylindrical of oil cylinder piston 10, the interior circle and the cylindrical of clamping oil cylinder piston 13 end faces be respectively arranged with O-ring seals;
Before implementing well logging or perforating job, prior hydraulic pump with this device, control device and the hydraulic line that clamps between the shear connect, to clamp shear is placed on the rig floor, for purpose of safety, hydraulic hand-pump 3 and control valve 1 are arranged on the place far away apart from rig floor simultaneously, in the process of implementing the construction of well logging or perforation, if find that there are high pressure or other abnormal conditions in the down-hole, when needing personnel to withdraw rig floor, immediately this device is placed on well head, well logging or the perforation cable cable guide skewed slot 15 from this device is inserted, then, operating personnel leave well head immediately, start and be arranged on hydraulic hand-pump 1 at a distance, open the switch that control valve 1 leads to clamping oil cylinder cylinder sleeve 11 then earlier, fuel feeding in clamping oil cylinder cylinder sleeve 11, under the effect of hydraulic coupling, clamping oil cylinder piston 13 overcomes the elastic force of return spring 14, clamping oil cylinder piston 13 is travelled forward, because the front end face of cable cleat 5 is provided with the inclined-plane of guiding, so, when cable cleat 5 travels forward under the promotion of clamping oil cylinder piston 13, the cable that inserts the inside in advance can arrive under the guiding of guiding surface in the arc-shaped concave 16 of cable support body 17 centres, continue then to promote, cable is clamped, open then and lead to the switch of shearing oil cylinder 9, fuel feeding in shearing oil cylinder 9, promoting to shear oil cylinder piston 10 travels forward, under the promotion of hydraulic coupling, the elastic force that shearing oil cylinder piston 10 has overcome return spring 12 moves forward, the cable that 6 pairs of shear-blades shearing oil cylinder piston 10 front end settings have been clamped is implemented to shear, under the cooperation of cable support body 17, shear-blade 6 can be cut off cable very soon, stop then clamping oil cylinder cylinder sleeve 11 interior and shearing oil cylinder 9 interior fuel feeding, do not having under the situation of pressure, clamping oil cylinder piston 13 and shearing oil cylinder piston 10 are return original position respectively under the effect of return spring 14 and 12, remove the effect of clamping, the cable of being cut off will fall into the down-hole, well head does not have cable just can start the task that wellhead blowout preventor realizes cutting out fully well head, reaches the purpose of well control.
Claims (6)
1. oil well logging perforation cable hydraulic cutting device, comprise control device and clamp shear, it is characterized in that: control device is made of hydraulic hand-pump and control valve, between hydraulic hand-pump and the control valve, be connected by hydraulic tube between control valve and the clamping shear, clamping shear comprises supporting base, cable support body and shears oil cylinder, shear in the oil cylinder is to shear oil cylinder piston, the cylindrical of shearing oil cylinder is a clamping oil cylinder cylinder sleeve, is provided with the clamping oil cylinder piston in the clamping oil cylinder cylinder sleeve.
2. oil well logging perforation cable hydraulic cutting device according to claim 1 is characterized in that: the front end of described shearing oil cylinder piston is provided with shear-blade, shears oil cylinder piston by the return spring return.
3. oil well logging perforation cable hydraulic cutting device according to claim 1 is characterized in that: the front end at described clamping oil cylinder piston is connected with cable cleat, and the front end face of cable cleat has the inclined-plane of guiding.
4. oil well logging perforation cable hydraulic cutting device according to claim 1 is characterized in that: described clamping oil cylinder piston is by the return spring return.
5. oil well logging perforation cable hydraulic cutting device according to claim 1 is characterized in that: described support plinth is a cuboid, is provided with the cable guide skewed slot at support plinth cable inlet one end.
6. oil well logging perforation cable hydraulic cutting device according to claim 1 is characterized in that: described cable support body is arranged on the corresponding surface of cable cleat, is provided with in the cable support body and the corresponding arc-shaped concave of shear-blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200824256U CN201430369Y (en) | 2009-07-09 | 2009-07-09 | Hydraulic shear device for petroleum logging and perforated cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200824256U CN201430369Y (en) | 2009-07-09 | 2009-07-09 | Hydraulic shear device for petroleum logging and perforated cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201430369Y true CN201430369Y (en) | 2010-03-24 |
Family
ID=42034108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200824256U Expired - Fee Related CN201430369Y (en) | 2009-07-09 | 2009-07-09 | Hydraulic shear device for petroleum logging and perforated cables |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201430369Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658488A (en) * | 2012-05-11 | 2012-09-12 | 刘力平 | Manual hydraulic fixture |
| CN103510902A (en) * | 2012-06-25 | 2014-01-15 | 中国石油化工股份有限公司 | Oil pipe cutting device |
| CN105081444A (en) * | 2015-07-27 | 2015-11-25 | 中国核电工程有限公司 | Shearing device convenient to repair in long distance |
| CN111113507A (en) * | 2019-12-18 | 2020-05-08 | 中国船舶重工集团有限公司第七一0研究所 | Preset hydraulic power shearing device |
-
2009
- 2009-07-09 CN CN2009200824256U patent/CN201430369Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658488A (en) * | 2012-05-11 | 2012-09-12 | 刘力平 | Manual hydraulic fixture |
| CN102658488B (en) * | 2012-05-11 | 2014-04-02 | 刘力平 | Manual hydraulic fixture |
| CN103510902A (en) * | 2012-06-25 | 2014-01-15 | 中国石油化工股份有限公司 | Oil pipe cutting device |
| CN105081444A (en) * | 2015-07-27 | 2015-11-25 | 中国核电工程有限公司 | Shearing device convenient to repair in long distance |
| CN105081444B (en) * | 2015-07-27 | 2019-05-28 | 中国核电工程有限公司 | A kind of shear convenient for remote overhauling |
| CN111113507A (en) * | 2019-12-18 | 2020-05-08 | 中国船舶重工集团有限公司第七一0研究所 | Preset hydraulic power shearing device |
| CN111113507B (en) * | 2019-12-18 | 2021-05-28 | 中国船舶重工集团有限公司第七一0研究所 | Preset hydraulic power shearing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20170709 |