CN201420529Y - Removable bridge plug - Google Patents
Removable bridge plug Download PDFInfo
- Publication number
- CN201420529Y CN201420529Y CN2009200386961U CN200920038696U CN201420529Y CN 201420529 Y CN201420529 Y CN 201420529Y CN 2009200386961 U CN2009200386961 U CN 2009200386961U CN 200920038696 U CN200920038696 U CN 200920038696U CN 201420529 Y CN201420529 Y CN 201420529Y
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- China
- Prior art keywords
- ring
- slips
- lock
- mandrel
- tube base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
A removable bridge plug comprises an upper connector, an O-shaped ring, a set packer shear pin, a locking connector, a steel ball, a deblocking head, a deblocking shear pin, a sand-prevention net, a lock block, an upper ring gauge, a lock sleeve, an open lock ring, a spring tension bar, a spacer ring, a rubber cylinder, a rubber cylinder holder, a lower ring gauge, an O-shaped ring A, a mandrel, aslip cone, a slip socket and a slip, and is characterized in that the slip cone is arranged in the slip socket, the slip penetrates through the square hole on the slip socket to be connected with theslip cone, the lower end of the lock sleeve is arranged in the rubber cylinder holder, the upper end thereof is fixed on the upper ring gauge through the lock block, the open lock ring is screwed inthe lock sleeve, the lock block is arranged in a lock block hole, the deblocking head is sleeved in the outer ring of the upper ring gauge, and is provided with the deblocking shear pin, the outer ring is sleeved into the locking connector, the locking connector is in threaded connection with the upper ring gauge, the upper connector is in threaded connection with the spring tension bar and then is in threaded connection with the mandrel, and the set packer shear pin is arranged on the locking connector.
Description
Technical field
The utility model relates to a kind of oil field down-hole capping tools, particularly relates to a kind of detachable bridge plug that is used for the down-hole shutoff.
Background technology
The down-hole capping tools is widely used in the oil field prospecting development process, especially being applied in formation testing, underground work, oil-gas Layer transformation, formation testing, notes adopts in the work progress such as layer position adjustment, at present, using comparatively general capping tools is detachable bridge plug, but the detachable bridge plug of existing use exists and sets, salvaging, unsealing operation complexity, the use success rate is low, constructing operation is difficult for, thereby influence manufacturing schedule, even can not realize sometimes, thereby greatly influence the raising of production efficiency to the effective shutoff of target zone.
Summary of the invention
The purpose of this utility model is at the problems referred to above, avoids deficiency of the prior art, and a kind of unique mechanism of locking certainly that adopts is provided, and has reliable bidirectional bearing function, detachable bridge plug simple in structure, safe and reliable, applied widely.
The utility model is realized by following technical proposals.
A kind of detachable bridge plug, comprise upper binding head, O type circle, set shear pin, locked joints, steel ball, separate end socket, deblocking shear pin, sand control screens, lock dog, on advise ring, lock tube, opening lock ring, tension force stick, spacer ring, packing element, glue tube base, rule ring, O type circle A, mandrel, slips cone, slips tube, slips down; It is characterized in that: the slips cone is arranged in the slips tube, the square hole that slips passes the slips tube is connected with the slips cone, O type circle A is loaded on the mandrel, glue tube base is nested on the mandrel, be provided with keyway in the glue tube base endoporus, the outer ring of mandrel is provided with key, and make the keyway in the glue tube base endoporus and match with key that the mandrel outer ring of its coupling is provided with, with this assembly and the slips that has installed, the slips cone, slips tube composite member is threaded, to advise down on the ring set in addition and be threaded with the slips cone behind the glue tube base, on glue tube base, be inserted in packing element successively, spacer ring, to go up the rule ring again is threaded with glue tube base, the lock tube lower end is inserted in the glue tube base, the upper end is fixed on rule ring place by lock dog, the opening lock ring screws in the lock tube, form a composite member and insert in the endoporus of glue tube base, one lock dog groove is arranged on the lock tube, on the last rule ring lock dog hole is arranged, the two is corresponding, lock dog is inserted in the lock dog hole, simultaneously the deblocking head is nested on the cylindrical of advising ring and blocks lock dog, and be equipped with the deblocking shear pin on the end socket separating, be inserted in locked joints on its outer ring, locked joints is threaded with last rule ring, install sand control screens on the upper binding head, and be threaded, again this composite member is connected with mandrel thread with tension force stick, set shear pin and install on the locked joints, in upper binding head, insert steel ball and O type circle.
Install on the locked joints by setting shear pin in the described setting mechanism, last rule ring and locked joints are by being threaded, be inserted in packing element on the glue tube base successively, spacer ring, be threaded with tension force stick after the device sand control screens on the upper binding head, under advise on the ring set and be threaded with the slips cone behind the glue tube base, insert in the slips tube by the slips cone in the described anchor mechanism, then with the slips square groove of slips by the slips tube, insert in the dovetail groove of slips cone, its effect be in the process of setting, utilize slips by stinging tight internal surface of sleeve pipe the grappling sleeve pipe, in the described sealing mechanism by being inserted in packing element on the glue tube base successively, spacer ring, last rule ring is threaded with glue tube base, under advise on the ring set and be threaded with the slips cone behind the glue tube base, described separating in the sealing mechanism is equipped with the deblocking shear pin by separating on the end socket, lock dog is inserted in the lock dog hole, last rule ring is threaded with glue tube base, insert in the glue tube base by the lock tube lower end in the described locking mechanism, the upper end is fixed on rule ring place by lock dog, the opening lock ring screws in the lock tube, be with glue tube base on the mandrel, going up on the rule ring of being threaded with glue tube base has a lock dog hole, and lock dog is inserted in the lock dog hole.
Intermeshing tooth is arranged on described lock ring and the mandrel, can set the inner automatic locking in back at bridging plug.
A kind of detachable bridge plug of the utility model, when the technological requirement seat seals, detachable bridge plug is connected with oil pipe by seat envelope instrument, after the calibration degree of depth, with oil pipe detachable bridge plug is delivered to the precalculated position, down-hole, use water booster system on ground, pressurize in oil pipe, the piston of setting tool moves downward, and the slips that promotes detachable bridge plug is stung tight internal surface of sleeve pipe, the packing element Sealed casing pipe annular space of compression detachable bridge plug, at this moment, tension force stick is broken in the self-locking of detachable bridge plug internal construction, after setting tool tripped out well head with oil pipe, the detachable bridge plug shutoff was in the precalculated position, down-hole.
When the technological requirement deblocking, with oil pipe special deblocking instrument is delivered to the down-hole desired location, catch bridging plug to separate end socket, the upper lifting pipe post is removed the bridging plug self-locking, and packing element promptly shrinks, and slips sends back in the slips tube, the bridging plug deblocking, its assembly rises to ground with oil pipe.
Water booster system described in the utility model is generally pump truck, and the deblocking instrument is generally bridging plug and drags for lance.
The usefulness of a kind of detachable bridge plug of the utility model is
1, the setting force of bridging plug is controlled by tension force stick, and it is safe and reliable to guarantee that bridging plug sets, and guarantees that simultaneously setting tool can trip out the well letter safely under complex situations.
2, slips partly adopts built-in slips structure, and the detachable bridge plug card that is difficult for being hampered up and down the time in pit shaft can be used safely in the well of any gradient.
3, detachable bridge plug utilizes the ingenious combination of slips, slips cone, slips urceolus, has good bidirectional bearing ability, applicable to multiple other sleeve pipe of level.
4, the order of separating seal locking mechanism, sealing mechanism, slips mechanism of detachable bridge plug is carried out step by step, no matter downforce balance whether on it, required deblocking power is all very little.
Description of drawings
Fig. 1 is a section of structure of the present utility model
Fig. 2 is an engaging tooth sectional drawing on the utility model lock ring and the mandrel
In Fig. 1:
1-connector, 2-O type circle, 3-set shear pin, 4-locked joints, 5-steel ball, 6-and separate end socket, 7-deblocking shear pin, 8-sand control screens, 9-lock dog, the last rule ring of 10-, 11-lock tube, 12-opening lock ring, 13-tension force stick, 14-spacer ring, 15-packing element, 16-glue tube base, 17-rule ring, 18-O type circle A, 19-mandrel, 20-slips cone, 21-slips tube, 22-slips down.
The specific embodiment
Further specify the specific embodiment of the present utility model below in conjunction with Figure of description.
As shown in Figure 1, a kind of detachable bridge plug of the utility model, comprise upper binding head 1, O type circle 2, set shear pin 3, locked joints 4, steel ball 5, separate end socket 6, deblocking shear pin 7, sand control screens 8, lock dog 9, last rule ring 10, lock tube 11, opening lock ring 12, tension force stick 13, spacer ring 14, packing element 15, glue tube base 16, following rule ring 17, O type circle A18, mandrel 19, slips cone 20, slips tube 21, slips 22, it is characterized in that: slips cone 20 is arranged in the slips tube 21, the square hole that slips 22 passes slips tube 21 is connected with slips cone 20, O type circle A18 is loaded on the mandrel 19, glue tube base 16 is nested on the mandrel 19, be provided with keyway in glue tube base 16 endoporus, the outer ring of mandrel 19 is provided with key, and make the keyway in glue tube base 16 endoporus and match with key that mandrel 19 outer rings of its coupling are provided with, with this assembly and the slips 22 that has installed, slips cone 20, slips tube 21 composite membeies are threaded, to descend rule ring 17 to put glue tube base 16 in addition is threaded with slips cone 20, on glue tube base 16, be inserted in packing element 15 successively, spacer ring 14, to go up rule ring 10 again is threaded with glue tube base 16, lock tube 11 lower ends are inserted in the glue tube base 16, the upper end is fixed on rule ring 10 places by lock dog 9, opening lock ring 12 screws in the lock tube 11, form a composite member and insert in the endoporus of glue tube base 16, one lock dog groove is arranged on the lock tube 11, on the last rule ring 10 a lock dog hole is arranged, the two is corresponding, lock dog 9 is inserted in the lock dog hole, to separate simultaneously on the cylindrical that end socket 6 is nested into rule ring 10 and block lock dog 9, and be equipped with deblocking shear pin 7 on the end socket 6 separating, be inserted in locked joints 4 on its outer ring, locked joints 4 is threaded with last rule ring 10, device sand control screens 8 on the upper binding head 1, and be threaded with tension force stick 13, again this composite member is threaded with mandrel 19, set shear pin 3 and install on the locked joints 4, in upper binding head 1, insert steel ball 5 and O type circle 2.
Install on the locked joints 4 by setting shear pin 3 in the described setting mechanism, last rule ring 10 and locked joints 4 are by being threaded, be inserted in packing element 15 on the glue tube base 16 successively, spacer ring 14, device sand control screens 8 backs are threaded with tension force stick 13 on the upper binding head 1, following rule ring 17 puts glue tube base 16 backs and is threaded with slips cone 20, insert in the slips tube 21 by slips cone 20 in the described anchor mechanism, then with the slips square groove of slips 22 by slips tube 21, insert in the dovetail groove of slips cone 20, its effect be in the process of setting, utilize slips 22 by stinging tight internal surface of sleeve pipe the grappling sleeve pipe, in the described sealing mechanism by being inserted in packing element 15 on the glue tube base 16 successively, spacer ring 14, last rule ring 10 is threaded with glue tube base 16, following rule ring 17 puts glue tube base 16 backs and is threaded with slips cone 20, described separating in the sealing mechanism is equipped with deblocking shear pin 7 by separating on the end socket 6, lock dog 9 is inserted in the lock dog hole of advising on the ring 10, last rule ring 10 is threaded with glue tube base 16, insert in the glue tube base 16 by lock tube 11 lower ends in the described locking mechanism, the upper end is fixed on rule ring 10 places by lock dog 9, opening lock ring 12 screws in the lock tube 11, be with glue tube base 16 on the mandrel 19, going up on the rule ring 10 of being threaded with glue tube base 16 has a lock dog hole, and lock dog 9 is inserted in the lock dog hole.
As shown in Figure 2, on described opening lock ring 12 and the mandrel 19 intermeshing tooth is arranged, can set the inner automatic locking in back at bridging plug.
A kind of detachable bridge plug of the utility model, when the technological requirement seat seals, detachable bridge plug is connected with oil pipe by seat envelope instrument, after the calibration degree of depth, with oil pipe detachable bridge plug is delivered to the precalculated position, down-hole, use water booster system on ground, pressurize in oil pipe, the piston of setting tool moves downward, and the slips 22 that promotes detachable bridge plug is stung tight internal surface of sleeve pipe, the packing element 15 Sealed casing pipe annular spaces of compression detachable bridge plug, at this moment, tension force stick 13 is broken in the self-locking of detachable bridge plug internal construction, after setting tool tripped out well head with oil pipe, the detachable bridge plug shutoff was in the precalculated position, down-hole.
When the technological requirement deblocking, with oil pipe special deblocking instrument is delivered to the down-hole desired location, catch bridging plug to separate end socket 6, the upper lifting pipe post is removed the bridging plug self-locking, and packing element 15 promptly shrinks, slips 22 sends back in the slips tube 21, the bridging plug deblocking, and its assembly rises to ground with oil pipe.
Water booster system described in the utility model is generally pump truck, and the deblocking instrument is generally bridging plug and drags for lance.
A kind of detachable bridge plug of the utility model can reach accurately the sealed system of seat, has the sealing mechanism of separating of reliable anti-sticking design and unique anchor mechanism and safety, and is simple in structure, safe and reliable, applied widely.
Claims (1)
1, a kind of detachable bridge plug, comprise upper binding head, O type circle, set shear pin, locked joints, steel ball, separate end socket, the deblocking shear pin, sand control screens, lock dog, last rule ring, lock tube, the opening lock ring, tension force stick, spacer ring, packing element, glue tube base, following rule ring, O type circle A, mandrel, the slips cone, the slips tube, slips, it is characterized in that: the slips cone is arranged in the slips tube, the square hole that slips passes the slips tube is connected with the slips cone, O type circle A is loaded on the mandrel, glue tube base is nested on the mandrel, be provided with keyway in the glue tube base endoporus, the outer ring of mandrel is provided with key, and make the keyway in the glue tube base endoporus and match with key that the mandrel outer ring of its coupling is provided with, this assembly and the slips that has installed, the slips cone, slips tube composite member is threaded, under advise on the ring set and be threaded with the slips cone behind the glue tube base, on glue tube base, be inserted in packing element successively, spacer ring, last rule ring is threaded with glue tube base, the lock tube lower end is inserted in the glue tube base, the upper end is fixed on rule ring place by lock dog, the opening lock ring screws in the lock tube, form a composite member and insert in the endoporus of glue tube base, one lock dog groove is arranged on the lock tube, on the last rule ring lock dog hole is arranged, the two is corresponding, lock dog is inserted in the lock dog hole, simultaneously the deblocking head is nested on the cylindrical of advising ring and blocks lock dog, and be equipped with the deblocking shear pin on the end socket separating, be inserted in locked joints on its outer ring, locked joints is threaded with last rule ring, install sand control screens on the upper binding head, and be threaded with tension force stick, again this composite member is connected with mandrel thread, set shear pin and install on the locked joints, in upper binding head, insert steel ball and O type circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200386961U CN201420529Y (en) | 2009-01-05 | 2009-01-05 | Removable bridge plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200386961U CN201420529Y (en) | 2009-01-05 | 2009-01-05 | Removable bridge plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201420529Y true CN201420529Y (en) | 2010-03-10 |
Family
ID=41807181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200386961U Expired - Lifetime CN201420529Y (en) | 2009-01-05 | 2009-01-05 | Removable bridge plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201420529Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493782A (en) * | 2011-12-15 | 2012-06-13 | 中国石油集团渤海钻探工程有限公司 | Bridge plug for horizontal well |
| CN105370240A (en) * | 2015-10-13 | 2016-03-02 | 中国石油天然气股份有限公司 | Bridge plug for easy pumping of bi-directional seat hanger |
| CN105545251A (en) * | 2016-02-02 | 2016-05-04 | 四机赛瓦石油钻采设备有限公司 | Recoverable bridge plug for cable setting |
| CN107724992A (en) * | 2017-11-27 | 2018-02-23 | 李明 | One kind can desealed water-swelling packer |
| CN107829706A (en) * | 2017-09-30 | 2018-03-23 | 上海优强石油科技有限公司 | A kind of recyclable packer of high-performance |
| CN109798088A (en) * | 2019-03-13 | 2019-05-24 | 荆州市赛瑞能源技术有限公司 | A kind of permanent type bridge plug unsealed |
| CN110821442A (en) * | 2019-12-02 | 2020-02-21 | 大庆益科石油科技开发有限公司 | Integral fishable and drillable bridge plug |
| CN111577199A (en) * | 2020-05-11 | 2020-08-25 | 中国石油天然气股份有限公司 | Bridge plug with sand production preventing function for fracturing and using method thereof |
| CN111911110A (en) * | 2020-08-13 | 2020-11-10 | 中国石油化工股份有限公司 | Packer for formation testing and method for performing formation testing by using packer |
-
2009
- 2009-01-05 CN CN2009200386961U patent/CN201420529Y/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493782A (en) * | 2011-12-15 | 2012-06-13 | 中国石油集团渤海钻探工程有限公司 | Bridge plug for horizontal well |
| CN105370240A (en) * | 2015-10-13 | 2016-03-02 | 中国石油天然气股份有限公司 | Bridge plug for easy pumping of bi-directional seat hanger |
| CN105370240B (en) * | 2015-10-13 | 2018-03-09 | 中国石油天然气股份有限公司 | A kind of two-way seat hangs easily pumping bridging plug |
| CN105545251A (en) * | 2016-02-02 | 2016-05-04 | 四机赛瓦石油钻采设备有限公司 | Recoverable bridge plug for cable setting |
| CN105545251B (en) * | 2016-02-02 | 2018-11-02 | 四机赛瓦石油钻采设备有限公司 | A kind of cable sets recoverable bridge plug |
| CN107829706B (en) * | 2017-09-30 | 2024-04-05 | 上海优强石油科技有限公司 | Recoverable packer |
| CN107829706A (en) * | 2017-09-30 | 2018-03-23 | 上海优强石油科技有限公司 | A kind of recyclable packer of high-performance |
| CN107724992A (en) * | 2017-11-27 | 2018-02-23 | 李明 | One kind can desealed water-swelling packer |
| CN109798088B (en) * | 2019-03-13 | 2021-07-09 | 荆州市赛瑞能源技术有限公司 | Permanent bridge plug capable of being unsealed |
| CN109798088A (en) * | 2019-03-13 | 2019-05-24 | 荆州市赛瑞能源技术有限公司 | A kind of permanent type bridge plug unsealed |
| CN110821442A (en) * | 2019-12-02 | 2020-02-21 | 大庆益科石油科技开发有限公司 | Integral fishable and drillable bridge plug |
| CN111577199A (en) * | 2020-05-11 | 2020-08-25 | 中国石油天然气股份有限公司 | Bridge plug with sand production preventing function for fracturing and using method thereof |
| CN111911110A (en) * | 2020-08-13 | 2020-11-10 | 中国石油化工股份有限公司 | Packer for formation testing and method for performing formation testing by using packer |
| CN111911110B (en) * | 2020-08-13 | 2022-05-03 | 中国石油化工股份有限公司 | Packer for formation testing and method for performing formation testing by using packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Gu Mingxiang Inventor after: Wang Hailong Inventor after: Dong Qiaoyun Inventor after: Xu Xianghong Inventor before: Gu Mingxiang Inventor before: Dong Qiaoyun Inventor before: Xu Xianghong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: GU MINGXIANG DONG QIAOYUN XU XIANGHONG TO: GU MINGXIANG WANG HAILONG DONG QIAOYUN XU XIANGHONG |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yancheng Xinyuan Petrochemical Machinery Co., Ltd. Assignor: Gu Mingxiang Contract record no.: 2013320000577 Denomination of utility model: Removable bridge plug Granted publication date: 20100310 License type: Exclusive License Record date: 20130620 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100310 |
|
| CX01 | Expiry of patent term |