CN202273626U - Bridge plug type blanking plug inside pipe - Google Patents
Bridge plug type blanking plug inside pipe Download PDFInfo
- Publication number
- CN202273626U CN202273626U CN2011203304388U CN201120330438U CN202273626U CN 202273626 U CN202273626 U CN 202273626U CN 2011203304388 U CN2011203304388 U CN 2011203304388U CN 201120330438 U CN201120330438 U CN 201120330438U CN 202273626 U CN202273626 U CN 202273626U
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- pipe
- blanking plug
- pressure hose
- delivery device
- type blanking
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Abstract
The utility model relates to a bridge plug type blanking plug inside a pipe. A delivery device for throwing away a base seal of the bridge plug type blanking plug inside the pipe and a high pressure hose wound by steel wire ropes for transmitting and delivering pressure are matched. During delivery, an upper connector of a snap rod of the bridge plug type blanking plug inside the pipe is connected with a central rod of the delivery device, an upper connector of the delivery device is connected with the high pressure hose wound by the steel wire ropes, and the bridge plug type blanking plug inside the pipe is sent to a preset position in an oil sleeve accurately under the effect of ground vehicle-mounted power. Ground pump hydraulic pressure power is delivered to the delivery device through the high pressure hose wound by the steel wire ropes, a delivery device hydraulic cylinder works to push the bridge plug type blanking plug inside the pipe to be base-sealed. Due to the fact that the blanking plug adopts the hydraulic power base seal, loading capacity and once plugging success rate are greatly improved, labor strength of workers and construction cost during oil pipe transmission are reduced simultaneously, oil layer pollution is reduced, recovery rate of crude oil is improved, production requirements are met, environment is protected, and working efficiency is further improved.
Description
Technical field
The utility model relates to oil recovery field, oil field, is specifically related to blanking plug in the bridging plug formula pipe, is mainly used in the interior shutoff of near the oil of oil well mouth, sleeve pipe, so that the dismounting well head is changed the snubbing serving device, repairs or replacing fault well head and wellhead component.The utility model also can be applicable to shutoff in the oil pipe in the snubbing serving construction, and the ejection of control oil pipe inner fluid realizes being with and pressed lower tubular column.The utility model also can be applicable to shutoff in the sleeve pipe, realizes acidifying, pressure break, water blockoff, tests cover, squeezes shutoff measures such as stifled.
Background technology
The product of similar function has the direct releasing type of well head, steel wire conveying-type and three types of blanking plugs of rotation seat sealed type in the market; These three types all exist difficult, the defectives such as success rate is low, poor safety performance of shutoff, do not possess the technical condition of complete shutoff from technology, size and technical standpoint.Because of under the movement of falling object, dropping into, packing element very easily causes damage like the direct releasing type blanking plug of well head, and the shutoff success rate is low; Often drop into several; Just play plugging effect, and packing element opens by base pressure, so bearing capacity low (being generally less than 3MPa); Packing element lost efficacy easily in removing the oil pipe process, caused gas blowout accident.The block-up position of blanking plug is difficult to confirm especially, removes oil pipe and is prone to cause operate miss, has potential safety hazard.Though steel wire conveying-type blanking plug has overcome some shortcomings of releasing type, lean on the pulling force seat envelope strength of steel wire limited, bearing capacity and security performance limited equally (being generally less than 5MPa).Rotation seat sealed type blanking plug must be carried with the oil pipe of the little one-level of internal diameter, because of the restriction of size, can only be applied to the shutoff in the sleeve pipe, has the shutoff limitation, and has prolonged the activity duration with the oil pipe conveying, inefficiency, and construction cost is high.
The utility model content
The applicant considers the above-mentioned situation of prior art and has made the utility model.Be mainly according to the high-pressure hose delivery hydraulic pressure blanking plug that twines with wire rope of the utility model and overcome above defective and design.
An aspect according to the utility model; Blanking plug in a kind of bridging plug formula pipe is provided, has comprised appurtenances dropping feeder and the high-pressure hose that twines with wire rope, it is characterized in that; When delivering; The bar top connection of breaking of blanking plug is connected with the center-pole of dropping feeder in the said bridging plug formula pipe, and the top connection of dropping feeder is connected with the high-pressure hose that twines with wire rope, so that under the vehicle-mounted power of well head, accurately send into the precalculated position of tubing and casing.
According to blanking plug in the said bridging plug formula pipe of the aspect of the utility model, it is characterized in that when setting, ground hydraulic is to be passed to dropping feeder through the high-pressure hose that twines with wire rope.
According to blanking plug in the said bridging plug formula pipe of the aspect of the utility model, it is characterized in that, when deblocking; Wire rope is lowered to special-purpose fisher and docks with fishing head, and upper lifting pipe post slips withdraws from cone, and slips reclaims; The packing element deblocking stops up and takes out blanking plug in the said bridging plug formula pipe thereby remove.
The advantage of the utility model:
(1). owing to adopt the high-pressure hose that twines with wire rope to carry; Not only carry convenient and swiftly, duty cycle is short, high efficiency; And do not receive the restriction of common oil casing size; Be implemented in the optional position shutoff, in Operating Pressure lift pipe string process, can accurately grasp the position of blanking plug, guarantee that handling safety is reliable.
(2). adopt bridging plug formula bidirectionally anchoring structure, dropping feeder hydraulic way seat seals, and plugging effect is very firm, and sealing performance is very reliable, and the pressure reduction ability is up to 70MPa about bearing; Not only satisfy the interior shutoff of near the oil pipe of oil field shaft mouth, sleeve pipe fully; So that the dismounting well head is changed snubbing serving device, reparation or is changed fault well head and wellhead component etc.; And be applied to shutoff in the oil pipe in the snubbing serving construction; The ejection of control oil pipe inner fluid realizes being with and has pressed lower tubular column.Also can be applicable to shutoff in the down-hole casing, realize acidifying, pressure break, water blockoff, test cover, squeeze shutoff measures such as stifled.
(3). it is convenient and swift equally to remove shutoff, as long as be lowered to special-purpose fisher with wire rope, butt joint is very reliable, and deblocking takes out very convenient.If blanking plug is used for shutoff in the oil pipe in snubbing serving, when oil pipe trips out ground, can take out blanking plug very easily with special tool.
Description of drawings
Fig. 1 is the structure chart according to blanking plug in the bridging plug formula pipe of the embodiment of the utility model.
Fig. 2 is the high-pressure hose sketch map that wire rope twines.
The specific embodiment
To come further to understand the utility model through following description through with reference to above-mentioned accompanying drawing for embodiment.
At first, as depicted in figs. 1 and 2, the critical piece of blanking plug is following in the bridging plug formula pipe of the embodiment of the utility model: the 1-top connection; The 2-rubber ring; 3-seat cap; 4-cone seat spare; The long lock tube of 5-; The blue tail cone body of 6-; The 7-slips; The 8-packing element; The 9-spacer ring; The 10-glue tube base; The 11-fastener; The 12-connector; The 13-fishing head; The short lock tube of 14-; 15-breaks off the street corner; 16-lock dog cover; The 17-lock dog; The 18-central axis; The 19-wire rope; The 20-high-pressure hose.
Below, the operating principle of blanking plug in the bridging plug formula pipe of embodiment of the utility model is described.
1, deliver: the bar top connection of breaking of blanking plug in the bridging plug formula pipe is connected with the center-pole of dropping feeder, and the top connection with dropping feeder is connected with the high-pressure hose 20 that twines with wire rope 19 again, under the vehicle-mounted power of well head, sends into the precalculated position of downhole oil sleeve pipe;
2, set: ground hydraulic is delivered to dropping feeder through the high-pressure hose 20 that wire rope 19 twines, and makes the dropping feeder hydraulic cylinder works, and it is up that bar is broken in the center-pole drive; The top connection 1 of cylinder sleeve promotion blanking plug and following coupling part move down relatively, and it is fixing to force bi-directional slip 7 to strut, and compresses packing element 8 simultaneously and sets; Shutoff pipe internal channel; Complete shutoff puts in place, hydraulic pressure reaches certain value when seat seals, and breaks bar and breaks, and is locked with short lock tube 14 with duration lock tube 5; Blanking plug is stayed and is subscribed the position, and the high-pressure hose that twines through wire rope 19 trips out dropping feeder.
3, deblocking: if need to remove stop up, take out blanking plug, dock with fishing head as long as the high-pressure hose that twines with wire rope 19 is lowered to special-purpose fisher, upper lifting pipe post slips 7 withdraws from cone, slips 7 recovery, and packing element 8 deblockings take out blanking plug easily.Realize snubbing serving if blanking plug is used for the shutoff oil pipe, when oil pipe trips out ground, can take out blanking plug very easily with special tool.
Above-mentioned dropping feeder can adopt all kinds of dropping feeders existing on the market and that be suitable in the future, because it is not the main points place of the utility model, so for brevity, omits the detailed description to dropping feeder at this.
The utility model is mainly used near the interior shutoff of the oil pipe of oil field shaft mouth; So that the dismounting well head is changed snubbing serving device, reparation or replacing fault well head and wellhead component, is applied to shutoff in the oil pipe in the snubbing serving construction; Can realize in the tubing string optional position stopping up; The ejection of control oil pipe inner fluid realizes being with and has pressed lower tubular column.Also can be applicable to shutoff in the sleeve pipe, realize acidifying, pressure break, water blockoff, test cover, squeeze shutoff measures such as stifled.The field proves that this blanking plug has increased substantially bearing capacity and a shutoff success rate, greatly reduces working strength of workers and construction cost, has reduced oil layer pollution, improves oil recovery factor.Not only satisfy the production needs but also protected environment, also improved operating efficiency.
The utility model also is applicable to the oil pipe conveying of different-diameter, realizes the purpose of shutoff in the pipe.
In sum, those skilled in the art will appreciate that and to make various modifications, modification and replacement that it all falls into the protection domain of the utility model of liking the claim qualification enclosed to the foregoing description of the utility model.
Claims (3)
1. blanking plug in the bridging plug formula pipe; Comprise appurtenances dropping feeder and the high-pressure hose (20) that twines with wire rope (19); It is characterized in that when delivering, the bar top connection (1) of breaking of blanking plug is connected with the center-pole of dropping feeder in the said bridging plug formula pipe; The top connection of dropping feeder is connected with the high-pressure hose (20) that twines with wire rope (19), so that under the vehicle-mounted power of well head, accurately send into the precalculated position of tubing and casing.
2. blanking plug in the bridging plug formula pipe as claimed in claim 1 is characterized in that, when setting, ground hydraulic is to be passed to dropping feeder through the high-pressure hose (20) that twines with wire rope (19).
3. blanking plug in according to claim 1 or claim 2 the bridging plug formula pipe; It is characterized in that when deblocking, wire rope is lowered to special-purpose fisher and docks with fishing head; Upper lifting pipe post slips (7) withdraws from cone; Slips (7) reclaims, and packing element (8) deblocking stops up and take out blanking plug in the said bridging plug formula pipe thereby remove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203304388U CN202273626U (en) | 2011-09-06 | 2011-09-06 | Bridge plug type blanking plug inside pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203304388U CN202273626U (en) | 2011-09-06 | 2011-09-06 | Bridge plug type blanking plug inside pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202273626U true CN202273626U (en) | 2012-06-13 |
Family
ID=46193990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203304388U Expired - Fee Related CN202273626U (en) | 2011-09-06 | 2011-09-06 | Bridge plug type blanking plug inside pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202273626U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806864A (en) * | 2012-11-12 | 2014-05-21 | 中国石油天然气股份有限公司 | Hydraulic set-packer small-diameter oil pipe bridge plug |
| CN104196485A (en) * | 2014-08-25 | 2014-12-10 | 中国海洋石油总公司 | Internal plugging device of pipeline |
| CN113027376A (en) * | 2019-12-25 | 2021-06-25 | 中国石油天然气集团有限公司 | Rotary setting type blanking plug |
| CN114086914A (en) * | 2021-12-15 | 2022-02-25 | 中国石油化工股份有限公司 | Bridge plug for squeezing and blocking construction |
-
2011
- 2011-09-06 CN CN2011203304388U patent/CN202273626U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806864A (en) * | 2012-11-12 | 2014-05-21 | 中国石油天然气股份有限公司 | Hydraulic set-packer small-diameter oil pipe bridge plug |
| CN103806864B (en) * | 2012-11-12 | 2017-02-01 | 中国石油天然气股份有限公司 | Hydraulic set-packer small-diameter oil pipe bridge plug |
| CN104196485A (en) * | 2014-08-25 | 2014-12-10 | 中国海洋石油总公司 | Internal plugging device of pipeline |
| CN113027376A (en) * | 2019-12-25 | 2021-06-25 | 中国石油天然气集团有限公司 | Rotary setting type blanking plug |
| CN114086914A (en) * | 2021-12-15 | 2022-02-25 | 中国石油化工股份有限公司 | Bridge plug for squeezing and blocking construction |
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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: 20120613 Termination date: 20140906 |
|
| EXPY | Termination of patent right or utility model |