CN207776833U - A kind of multifunctional squeezing ash bridge plug - Google Patents
A kind of multifunctional squeezing ash bridge plug Download PDFInfo
- Publication number
- CN207776833U CN207776833U CN201721391958.3U CN201721391958U CN207776833U CN 207776833 U CN207776833 U CN 207776833U CN 201721391958 U CN201721391958 U CN 201721391958U CN 207776833 U CN207776833 U CN 207776833U
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- deblocking
- switch
- bridge plug
- hanging tube
- ball seat
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Abstract
A kind of multifunctional squeezing ash bridge plug is related to oil field down-hole plugging tool, more particularly to a kind of multifunctional squeezing ash bridge plug.It is main include deblocking piston, set piston, piston end cylinder barrel, central tube, deblocking carry hanging tube, injection pipe, set test pipe ball seat, switch carries hanging tube, switch main body, claw switch ball seat, deblocking collet, deblocking are given up bar etc..Back-off sub lower end is sequentially connected that deblocking carries hanging tube, deblocking carries hanging tube connector, injection pipe, switch and carries hanging tube, switch, which carries hanging tube inner cavity top and is equipped with, to be set and tests pipe ball seat, inner cavity lower part is sleeved on deblocking and gives up at bar neck, deblocking collet lower thread connection unseals bar of giving up, top is threadedly coupled switch main body, and suit claw switchs ball seat inside switch main body.The utility model structure novel, it can be achieved that underground switch well, will deliver bridge plug, it is lower squeeze that stifled intubation, to salvage the functions such as bridge plug three-in-one, one-trip string complete it is all squeeze stifled work progress, and can realize and not unseal bridge plug Back-off Pipe String.
Description
Technical field
The utility model is related to oil field down-hole plugging tools, and in particular to a kind of multifunctional squeezing ash bridge plug.
Background technology
The existing retrievable bridge plug of cement squeeze in oil field has the following disadvantages：The pipe for needing first tripping in setting tool to be connect with bridge plug
Column is set, then rise out tubing string again tripping in intubation column squeeze it is stifled, squeeze it is stifled after the completion of again tripping in fishing tool beaten
Fishing, need to remove three times tubing strings could complete, and operational procedure complexity, long construction period, operating cost are high, while drillability can be poor,
Desirable performance is unreliable.
Invention content
The purpose of this utility model is to provide a kind of multifunctional squeezing ash bridge plugs, will deliver bridge plug, lower squeeze blocks up intubation, salvages
The functions such as bridge plug are three-in-one, once go into the well, once play out all crowded stifled work progress of completion, improving work efficiency reduces operating cost.
The utility model can rise out with tubing string, can not also unseal bridge plug and give up out tubing string, and former bridge plug can be with
It salvages, the utility model solves the problems, such as that current crowded stifled Shut-in well tubular column exists, and is integrated with its all advantage.
To achieve the above object, the technical solution adopted in the utility model is：A kind of multifunctional squeezing ash bridge plug includes mainly
Deblocking piston, set piston, piston end cylinder barrel, central tube, deblocking carry hanging tube, injection pipe, set test pipe ball seat, switch carries extension
Pipe, claw switch ball seat, deblocking collet, unseals bar etc. of giving up at switch main body.Crossover sub lower end is threadedly coupled deblocking and carries successively
Hanging tube, deblocking carry hanging tube connector, injection pipe, switch and carry hanging tube etc., and switch, which carries hanging tube inner cavity top and is equipped with to set, tests pipe ball seat, leads to
Cross the connection of several shear pins, inner cavity lower part is sleeved on deblocking and gives up at bar neck, and deblocking collet lower thread connection deblocking is given up bar, on
Portion is threadedly coupled switch main body, and claw is housed inside switch main body and switchs ball seat, external to be set with packing element, spacer ring, tapered sleeve etc. successively,
Internal whorl connects central tube, and slips and cone are housed in tapered sleeve, and cone top is threadedly coupled and sets piston, sets piston jacket
Piston end cylinder barrel is filled, deblocking lock casing part is sleeved on piston end cylinder barrel top and is connected by shear pin, and top is threadedly coupled deblocking
Carry extension cap.
The utility model has the beneficial effects that：The phenomenon that stifled operation need to play three times tubing strings, this reality are squeezed compared to present oil field
With the novel number that can have reduced lower tubular column, once goes into the well, once plays out all crowded stifled work progress of completion, improve work efficiency drop
Low operating cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
In figure, 1 back-off sub, 2 deblockings carry hanging tube, and 3 deblockings carry extension cap, 4 deblocking lock tube pipes, and 5 deblockings carry hanging tube connector, and 6
Closing piece is unsealed, 7 injection pipes, 8 deblocking pistons, 9 set lock ring, and 10 set piston, and 11 set lock piston ring set, and 12 set lock tube,
13 piston end cylinder barrels, 14 central tubes, 15 solution sealing caps, 16 cones, 17 bi-directional slips, 18 tapered sleeves, the outer helmet I of 19 packing elements, 20 packing elements
Outer helmet II, 21 packing elements, 22 set and test pipe ball seat, 23 spacer rings, and 24 switches carry hanging tube, and 25 switch main bodies, 26 claw switch ball seat,
27 deblocking collets, 28 unseal bar of giving up, and 29 squeeze grey channels, and 30 shear pins, 31 italics, 32 well-flushings are for liquid channel.
Specific implementation mode
The structure working principle of the utility model is described further below in conjunction with the accompanying drawings.
As shown in Figure 1：When site operation, first by the utility model tripping in downhole designs position, pitching suppresses completion and tests pipe,
Hydraulic power makes packing element 21 be compressed axially radial dilatation sealing annular space, and bi-directional slip 17 is engaging in along the expansion of italic 31 in casing
Wall sets the locked bridge plug of completing of lock ring 9 and sets, and improves pressure and sets to test pipe ball seat 22 and slide to open and squeeze grey channel 29, you can squeezes
Blocking agent injection and displacement process are completed in stifled construction；The well that liquid must be replaced for pressure high absorbent capacity difference is completed to set to test envelope
Upper lifting pipe post a distance afterwards closes claw and switchs ball seat 26, opens simultaneously circulation well cleanup and is replaced for 32 direct circulation of liquid channel completion
Liquid, again transfer tubing string close circulation well cleanup for liquid channel 32 simultaneously again open claw switch ball seat 26 continue to complete blocking agent injection
And displacement process.
It is again stepped up tubing string a distance, claw is closed and switchs ball seat 26, realize downhole closing pressurize Hou Ning, open simultaneously
Circulation well cleanup washes out remaining blocking agent in oil pipe for 32 reacting cycle of liquid channel.Due to downhole closing, well-flushing does not influence stratum blocking agent
Solidification, rise oil pipe before can uninterrupted well-flushing, ensure tubing string safely rise.
Again without control upper lifting pipe post after blocking agent solidification, this reality when tubing string is above carried more than certain altitude striking solution sealing mechanism
With novel smooth deblocking, acts tubing string and the utility model completes construction.
The utility model, which can also be achieved, not to be unsealed bridge plug and gives up, and only need to throw one suitable steel ball into tubing string, is set dozen
Pressure, back-off sub 1 are given up together with top tubing string.
Claims (4)
1. a kind of multifunctional squeezing ash bridge plug, main includes deblocking piston（8）, set piston（10）, piston end cylinder barrel（13）, center
Pipe（14）, deblocking carry hanging tube（2）, injection pipe（7）, set and test pipe ball seat（22）, switch carry hanging tube（24）, switch main body（25）、
Claw switchs ball seat（26）, deblocking collet（27）, deblocking gives up bar（28）；Back-off sub（1）Lower end passes through shear pin（30）Connection
Deblocking carries hanging tube（2）, unseal and carry hanging tube（2）Lower end is sequentially connected deblocking by screw thread and carries hanging tube connector（5）, injection pipe（7）, open
Pass carries hanging tube（24）, switch and carry hanging tube（24）Inner cavity top, which is equipped with to set, tests pipe ball seat（22）, pass through shear pin（30）Connection, inner cavity
Lower part is sleeved on deblocking and gives up bar（28）At neck, collet is unsealed（27）Lower thread connection unseals bar of giving up（28）, top screw thread
Connecting valve main body（25）, switch main body（25）Inside switchs ball seat equipped with claw（26）, outside is set with packing element successively（21）, every
Ring（23）, tapered sleeve（18）, internal whorl connection central tube（14）, tapered sleeve（18）It is interior that bi-directional slip is housed（17）And cone（16）,
Cone（16）Top is threadedly coupled and sets piston（10）, set piston（10）Outer suit piston end cylinder barrel（13）, unseal lock tube pipe
（4）Lower part is sleeved on piston end cylinder barrel（13）Top simultaneously passes through shear pin（30）Connection, top are threadedly coupled deblocking and carry extension cap（3）.
2. multifunctional squeezing ash bridge plug according to claim 1, it is characterised in that：Central tube（14）It is equipped with radially uniformly distributed
Several well-flushings replace liquid channel（32）.
3. multifunctional squeezing ash bridge plug according to claim 1, it is characterised in that：Claw switchs ball seat（26）Divide valve for elasticity
Formula.
4. multifunctional squeezing ash bridge plug according to claim 1, it is characterised in that：Switch carries hanging tube（24）Lower boss is sleeved on
Claw switchs ball seat（26）Interior, top is indirectly connected with tubing string, it can be achieved that underground switch well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721391958.3U CN207776833U (en) | 2017-10-26 | 2017-10-26 | A kind of multifunctional squeezing ash bridge plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721391958.3U CN207776833U (en) | 2017-10-26 | 2017-10-26 | A kind of multifunctional squeezing ash bridge plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207776833U true CN207776833U (en) | 2018-08-28 |
Family
ID=63218481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721391958.3U Active CN207776833U (en) | 2017-10-26 | 2017-10-26 | A kind of multifunctional squeezing ash bridge plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207776833U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138880A (en) * | 2018-10-27 | 2019-01-04 | 长葛市金博机械化工有限公司 | Bidirectionally anchoring device |
| CN111155955A (en) * | 2020-01-19 | 2020-05-15 | 中国石油天然气股份有限公司 | Negative-pressure oil-gas mixed pumping pump capable of being matched with blowout-prevention oil drainer and method |
| CN111364939A (en) * | 2019-12-19 | 2020-07-03 | 大庆油田有限责任公司 | Double-conical-surface sealing module for downhole tool |
| CN112096340A (en) * | 2020-09-27 | 2020-12-18 | 陕西鼎和源瑞环境工程有限公司 | Integrated extrusion-sealed pipe column |
| CN112392432A (en) * | 2021-01-19 | 2021-02-23 | 海塔石油科技有限公司 | Multifunctional plugging bridge plug |
| CN114575782A (en) * | 2020-12-01 | 2022-06-03 | 中国石油天然气集团有限公司 | Ash squeezing well repairing pipe column and ash squeezing well repairing method |
-
2017
- 2017-10-26 CN CN201721391958.3U patent/CN207776833U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138880A (en) * | 2018-10-27 | 2019-01-04 | 长葛市金博机械化工有限公司 | Bidirectionally anchoring device |
| CN109138880B (en) * | 2018-10-27 | 2023-10-20 | 长葛市金博机械化工有限公司 | Bidirectional anchor |
| CN111364939A (en) * | 2019-12-19 | 2020-07-03 | 大庆油田有限责任公司 | Double-conical-surface sealing module for downhole tool |
| CN111155955A (en) * | 2020-01-19 | 2020-05-15 | 中国石油天然气股份有限公司 | Negative-pressure oil-gas mixed pumping pump capable of being matched with blowout-prevention oil drainer and method |
| CN111155955B (en) * | 2020-01-19 | 2024-05-28 | 中国石油天然气股份有限公司 | Negative pressure type oil-gas mixed pump capable of being matched with blowout preventer and method |
| CN112096340A (en) * | 2020-09-27 | 2020-12-18 | 陕西鼎和源瑞环境工程有限公司 | Integrated extrusion-sealed pipe column |
| CN114575782A (en) * | 2020-12-01 | 2022-06-03 | 中国石油天然气集团有限公司 | Ash squeezing well repairing pipe column and ash squeezing well repairing method |
| CN112392432A (en) * | 2021-01-19 | 2021-02-23 | 海塔石油科技有限公司 | Multifunctional plugging bridge plug |
| CN112392432B (en) * | 2021-01-19 | 2021-03-23 | 海塔石油科技有限公司 | Multifunctional plugging bridge plug |
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