CN201062505Y - Hollow suspension sub-releasing axle plug - Google Patents
Hollow suspension sub-releasing axle plug Download PDFInfo
- Publication number
- CN201062505Y CN201062505Y CNU2007200190035U CN200720019003U CN201062505Y CN 201062505 Y CN201062505 Y CN 201062505Y CN U2007200190035 U CNU2007200190035 U CN U2007200190035U CN 200720019003 U CN200720019003 U CN 200720019003U CN 201062505 Y CN201062505 Y CN 201062505Y
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- CN
- China
- Prior art keywords
- ring
- connector
- central tube
- cone
- lower cone
- 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 - Fee Related
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Abstract
The utility model relates to a hollow hanging releasing bridge plug, which comprises an upper connector, a lower connector, a locking assembly, a sealing assembly and an anchoring assembly which are connected between the upper connector and the lower connector. The upper end inside of the central tube of the locking assembly is connected with the lower end of a locking claw, the outer part of the locking assembly is mutually fixed with a fishing connector through an unsealing pin, the lower end is connected with a lower cone body, the upper end of the locking claw is connected with the upper connector, an inner cavity is mutually fixed with a supporting ring through a seat sealing shear pin, a piston and the upper part of a clamping ring are arranged in the ring space between the locking claw and the upper connector, the inner part of the lower part of the clamping ring is fixed on the fishing connector through a positioning pin, the outer part is connected with a protecting sheath, a sleeve is arranged outside the central tube, in the protecting sheath and under the fishing connector, a rubber barrel, a standard ring, a distance ring and an upper cone body is arranged outside the sleeve in sequence, the lower end and a seat are arranged on the inner step of the lower cone body, the inner surface of the lower cone body is contacted with the outer surface of the central tube, the upper part of an outer step is matched with the inner step at the upper end of a slip cover, slips and laminated spring are arranged on the conical surfaces of the upper cone body and the lower cone body in the slip cover, and the lower cone body is connected with the lower connector. The utility model ingrates sealing, hanging and releasing into a whole, and is mainly applied to the downhole operation process during the process of the petroleum extraction.
Description
One, technical field
The utility model belongs to the instrument of oil gas well hierarchical process, particularly a kind of hollow suspension bridging plug of giving up.
Two, background technology
The Chinese patent of ZL93202573.0 discloses a kind of packer, form by top connection, dummy piston, deblocking extension, exterior central tube, slips, lock dog, spacer ring, packing element joint ring, lock tube, seat envelope piston, lower contact, rely on hydraulic pressure transfer, finish setting, lock, sealing action, on carry the oil pipe deblocking.Than traditional 756-6 type, 251 type packers bigger improvement has been arranged, but also had following shortcoming or deficiency: 1. upper and lower joint is respectively equipped with piston chamber, structure complicated; 2. packer does not have the grappling effect; 3. packer need to seal in operation process, hang, give up substep combination could be used etc.
Three, summary of the invention
The purpose of this utility model is shortcoming or the deficiency that exists at above-mentioned prior art, and a kind of shortcoming or deficiency that had both effectively overcome or avoided existing in the above-mentioned prior art is provided, and possesses sealing again, the function that hangs, gives up is in the hollow suspension of the one bridging plug of giving up.
The hollow suspension described in the utility model bridging plug of giving up, comprise, lower contact, the lock pawl, piston, pressure ring, support ring, fishing head, pin, seat envelope shear pin, shop bolt, lock ring, central tube, sheath, the deblocking pin, sleeve, packing element, the standard ring, spacer ring, upper cone, the slips cover, slips, the bow spring, lower cone, interior helmet, be connected with lock pawl lower end in the described central tube upper end, outer and fishing joint is fixed by the deblocking pin, the lower end is connected with lower cone, described lock pawl upper end is connected with top connection, inner chamber is fixed by seat envelope shear pin and support ring, be installed on the top of piston and pressure ring in the annular space between described lock pawl and the top connection, fix by shop bolt with fishing joint in the bottom of pressure ring, be connected with sheath outward, outside the central tube, in the sheath, under the fishing joint, be installed on sleeve, this sleeve is installed on packing element outward in turn, the standard ring, spacer ring and upper cone, its lower end and seat are on the interior step of lower cone, the inner surface of lower cone contacts with the central tube external surface, match with step in the described slips cover upper end on the outer step, be installed on slips and bow spring in the slips cover on the conical surface of upper cone and lower cone, the lower cone lower end is connected with lower contact.
Wherein, described lock pawl top evenly is provided with at least 3 flowing holes, and this flowing hole is positioned at described top land, and the bottom is the claw type structure that is provided with open slot, have on it with central tube in the outer inclined-plane tooth embedding screw thread of inclined-plane tooth embedding threaded engagement.Described support ring upper end is the inner conical surface structure.Described lower contact is that left hand thread is connected with lower cone.Described lock ring is installed under pressure ring, outside the fishing joint, on the interior step of sheath.Helmet step outside lower cone is connected with slips cover lower end down in described.
The utility model has the following advantages compared with prior art:
1, flow chart is simplified, and transmission mechanism is positioned at a piston of top connection independently to be finished.
2, the packer bottom is provided with the grappling assembly, packer can be anchored on the optional position.
3, the function that possess sealing simultaneously in the construction operation, hangs, gives up.
4, have bidirectional bearing ability height, grappling is accurate, seat envelope, the safe and reliable characteristics of deblocking.
Four, description of drawings
Accompanying drawing is a structural representation of the present utility model.
Five, the specific embodiment
Consult accompanying drawing, a kind of hollow suspension bridging plug of giving up, comprise, lower contact 1,25, lock pawl 2, piston 4, pressure ring 5, support ring 6, fishing head 7, pin 8, seat envelope shear pin 9, shop bolt 10, lock ring 11, central tube 12, sheath 13, deblocking pin 14, sleeve 15, packing element 16, standard ring 17, spacer ring 18, upper cone 19, slips cover 20, slips 21, bow spring 22, lower cone 23, interior helmet 24, be connected with lock pawl 2 lower ends in central tube 12 upper ends, outer and fishing joint 7 is fixed by deblocking pin 14, the lower end is connected with lower cone 23, lock pawl 2 upper ends are connected with top connection 1, inner chamber is fixed with support ring 6 by seat envelope shear pin 9, be installed on the top of piston 4 and pressure ring 5 in the annular space between lock pawl and the top connection, fix by shop bolt 10 with fishing joint in the bottom of pressure ring, be connected with sheath 13 outward, outside the central tube, in the sheath, under the fishing joint, be installed on sleeve 15, this sleeve is installed on packing element 16 outward in turn, standard ring 17, spacer ring 18 and upper cone 19, its lower end and seat are on the interior step of lower cone 23, the inner surface of lower cone contacts with the central tube external surface, match with step in described slips cover 20 upper ends on the outer step, be installed on slips 21 and bow spring 22 in the slips cover on the conical surface of upper cone and lower cone, the lower cone lower end is connected with lower contact 25.
The utility model course of work is: with the utility model G.I.H design attitude, throw a ball to support ring 6 tops from central tube, add hydraulic pressure to central tube, spheroid shutoff central tube inner chamber, hydraulic pressure enters plunger shaft by the hole of lock pawl 2, act on the piston 4, promote overcurrent pressure ring 5 behind piston 4 pressurizeds, the 5 relative fishing joints 7 of overcurrent pressure ring move down, seat envelope shear pin 9 is cut off, promote lock ring 11, lock ring sheath 13, sleeve 15, packing element 16, spacer ring 18, standard ring 17, upper cone 19 integral body move down, and slips cover 20 is subjected to the annular space of outside oil pipe in upper cone active force footpath and sleeve pipe, realizes sealing.When pressure reached certain value, support ring 6 was subjected to the upward pressure effect to lock pawl 2 relatively to move down, and a seat envelope shear pin 9 is cut off, and lock pawl 3 breaks away from the screw thread of central tube 12, promptly realizes giving up.
When tripping out tubing string, be lowered to fishing tool and drag for fishing joint 7, the upper lifting pipe post moves on the fishing joint 7 relative central tubes 12, and deblocking pin 14 is cut off.When moving in the fishing joint 7, fishing joint 7 heads into lock ring 11 internal diameters, and lock ring 11 breaks away from central tube 12 tooth embedding screw threads, realizes deblocking.Continue the upper lifting pipe post, fishing joint 7 drive pressure rings 5, sheath 13, sleeve 15 move up.Packing element 16 loses compressive force, restores to the original state voluntarily; Upper cone 19 is up, and slips 21 loses support and bounces back under 22 effects of bow spring, breaks away from internal surface of sleeve pipe, and the complete deblocking of packer can trip out smoothly.
Claims (6)
1. hollow suspension bridging plug of giving up, comprise, lower contact, the lock pawl, piston, pressure ring, support ring, fishing head, pin, seat envelope shear pin, shop bolt, lock ring, central tube, sheath, the deblocking pin, sleeve, packing element, the standard ring, spacer ring, upper cone, the slips cover, slips, the bow spring, lower cone, interior helmet, it is characterized in that being connected with lock pawl lower end in the described central tube upper end, outer and fishing joint is fixed by the deblocking pin, the lower end is connected with lower cone, described lock pawl upper end is connected with top connection, inner chamber is fixed by seat envelope shear pin and support ring, be installed on the top of piston and pressure ring in the annular space between described lock pawl and the top connection, fix by shop bolt with fishing joint in the bottom of pressure ring, be connected with sheath outward, outside the central tube, in the sheath, under the fishing joint, be installed on sleeve, this sleeve is installed on packing element outward in turn, the standard ring, spacer ring and upper cone, its lower end and seat are on the interior step of lower cone, the inner surface of lower cone contacts with the central tube external surface, match with step in the described slips cover upper end on the outer step, be installed on slips and bow spring in the slips cover on the conical surface of upper cone and lower cone, the lower cone lower end is connected with lower contact.
2. the hollow suspension according to claim 1 bridging plug of giving up, it is characterized in that described lock pawl top evenly is provided with at least 3 flowing holes, this flowing hole is positioned at described top land, the bottom is the claw type structure that is provided with open slot, have on it with central tube in the outer inclined-plane tooth embedding screw thread of inclined-plane tooth embedding threaded engagement.
3. the hollow suspension according to claim 1 bridging plug of giving up is characterized in that described support ring upper end is the inner conical surface structure.
4. the hollow suspension according to claim 1 bridging plug of giving up is characterized in that described lower contact and lower cone are that left hand thread is connected.
5. the hollow suspension according to claim 1 bridging plug of giving up is characterized in that described lock ring is installed under pressure ring, outside the fishing joint, on the interior step of sheath.
6. the hollow suspension according to claim 1 bridging plug of giving up, it is characterized in that described in helmet step in lower cone outside time be connected with slips cover lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200190035U CN201062505Y (en) | 2007-02-15 | 2007-02-15 | Hollow suspension sub-releasing axle plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200190035U CN201062505Y (en) | 2007-02-15 | 2007-02-15 | Hollow suspension sub-releasing axle plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201062505Y true CN201062505Y (en) | 2008-05-21 |
Family
ID=39450876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200190035U Expired - Fee Related CN201062505Y (en) | 2007-02-15 | 2007-02-15 | Hollow suspension sub-releasing axle plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201062505Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635328A (en) * | 2012-04-16 | 2012-08-15 | 中国石油化工股份有限公司 | Method for running bridge plug sitting tool by means of differential pressure and bridge plug sitting tool utilized by same |
| CN102777148A (en) * | 2012-08-24 | 2012-11-14 | 招远金河石油设备技术开发有限公司 | Double-function releasing bridge plug for horizontal well |
| CN103321605A (en) * | 2013-05-24 | 2013-09-25 | 中国石油化工股份有限公司 | Downward striking type unblocking packer |
| CN104213845A (en) * | 2013-05-29 | 2014-12-17 | 上海优强石油科技有限公司 | Hydraulic release telescopic pipe |
| CN104989320A (en) * | 2015-07-17 | 2015-10-21 | 牡丹江市井田石油钻采配件有限公司 | Sliding way type releasing bridge plug |
| CN109138880A (en) * | 2018-10-27 | 2019-01-04 | 长葛市金博机械化工有限公司 | Bidirectionally anchoring device |
| CN110965958A (en) * | 2019-11-26 | 2020-04-07 | 宝鸡瑞林石油机电设备有限责任公司 | Bidirectional seat seal backflow-preventing packer |
| CN112554831A (en) * | 2019-09-25 | 2021-03-26 | 中国石油化工股份有限公司 | Well head changing and sealing device |
| CN113802994A (en) * | 2020-06-12 | 2021-12-17 | 中国石油化工股份有限公司 | Suspension device |
-
2007
- 2007-02-15 CN CNU2007200190035U patent/CN201062505Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635328B (en) * | 2012-04-16 | 2015-03-04 | 中国石油化工股份有限公司 | Method for running bridge plug sitting tool by means of differential pressure and bridge plug sitting tool utilized by same |
| CN102635328A (en) * | 2012-04-16 | 2012-08-15 | 中国石油化工股份有限公司 | Method for running bridge plug sitting tool by means of differential pressure and bridge plug sitting tool utilized by same |
| CN102777148A (en) * | 2012-08-24 | 2012-11-14 | 招远金河石油设备技术开发有限公司 | Double-function releasing bridge plug for horizontal well |
| CN102777148B (en) * | 2012-08-24 | 2015-06-24 | 招远金河石油设备技术开发有限公司 | Double-function releasing bridge plug for horizontal well |
| CN103321605B (en) * | 2013-05-24 | 2016-01-06 | 中国石油化工股份有限公司 | Under hit formula unfreezing packer |
| CN103321605A (en) * | 2013-05-24 | 2013-09-25 | 中国石油化工股份有限公司 | Downward striking type unblocking packer |
| CN104213845A (en) * | 2013-05-29 | 2014-12-17 | 上海优强石油科技有限公司 | Hydraulic release telescopic pipe |
| CN104989320A (en) * | 2015-07-17 | 2015-10-21 | 牡丹江市井田石油钻采配件有限公司 | Sliding way type releasing bridge plug |
| CN104989320B (en) * | 2015-07-17 | 2017-07-07 | 牡丹江市井田石油钻采配件有限公司 | Chute type sub-releasing axle plug |
| 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 |
| CN112554831A (en) * | 2019-09-25 | 2021-03-26 | 中国石油化工股份有限公司 | Well head changing and sealing device |
| CN112554831B (en) * | 2019-09-25 | 2023-02-21 | 中国石油化工股份有限公司 | Well head changing and sealing device |
| CN110965958A (en) * | 2019-11-26 | 2020-04-07 | 宝鸡瑞林石油机电设备有限责任公司 | Bidirectional seat seal backflow-preventing packer |
| CN113802994A (en) * | 2020-06-12 | 2021-12-17 | 中国石油化工股份有限公司 | Suspension device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080521 Termination date: 20100215 |