CN104265235A - Hydraulic-setting large-size detachable insertion tube packer - Google Patents
Hydraulic-setting large-size detachable insertion tube packer Download PDFInfo
- Publication number
- CN104265235A CN104265235A CN201410467707.3A CN201410467707A CN104265235A CN 104265235 A CN104265235 A CN 104265235A CN 201410467707 A CN201410467707 A CN 201410467707A CN 104265235 A CN104265235 A CN 104265235A
- Authority
- CN
- China
- Prior art keywords
- ratchet
- lock ring
- slips
- cover
- type circle
- 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.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
- E21B33/1295—Packers; Plugs with mechanical slips for hooking into the casing actuated by fluid pressure
Abstract
The invention relates to an underground layering tool of the oil production in oil fields and discloses a hydraulic-setting large-size detachable insertion tube packer, and the packer comprises a back insertion mechanism, a pressure locking mechanism, a rubber sleeve sealing mechanism, a slip anchoring mechanism, and an unpacking mechanism. In the packer, the setting and unpacking pressure can be adjusted according to on-site conditions; the packer is characterized by resisting high temperature and pressure, difficultly blocking sands, achieving test, reconstruction, production, stoppage, recovery and various construction in one procedure.
Description
Technical field
The present invention relates to the laminated distributor under well instrument of field of oil field oil extraction, particularly a kind of hydraulic setting big orifice retrievable insertion pipe packer, can utilize this instrument one-trip string to complete test, transform, ask every constructions such as product, shutoff, back production.
Background technology
Current, insertion pipe packer is divided into permanent type insertion pipe packer and retrievable insertion pipe packer, and it is high that permanent type insertion pipe packer has pressure-bearing rank, but cannot deblocking, and seal failure just must bore milling.Retrievable insertion pipe packer has can deblocking advantage, but also there are some defects, such as patent 201310229900.9, a kind of insertion pipe packer, although employing hydraulic setting, the ball sealer dropped into sets on central tube, is not easy to on-the-spot according to actual conditions adjustment hydraulic setting pressure, it is pitching that deblocking adopts, build the pressure, on carry, but still complicated operation; Patent 200920092319.6, insertion pipe packer, employing is pitching on the inner ball seat of packer, and limit the interior latus rectum of packer, this structure screens is on the top of packing element simultaneously, easy sand card not easily deblocking; Patent 201020506999.4, insertion pipe packer, sets and need separately connect hydraulic setting tool and set, and can not realize setting production of giving up by one-trip string.
Summary of the invention
Object of the present invention is exactly to overcome above-mentioned the deficiencies in the prior art part, and provides a kind of hydraulic setting, retrievable, big orifice, structure more rational hydraulic setting big orifice retrievable insertion pipe packer.
The object of the invention is to be achieved by the following technical measures: a kind of hydraulic setting big orifice retrievable insertion pipe packer, comprise Hui Cha mechanism, pressure retaining mechanism, packing element sealing mechanism, slips anchoring mechanism, separate sealing mechanism, described Hui Cha mechanism is made up of top connection, an O type circle, jointing, central tube, and jointing upper end is threaded with top connection and uses an O type circle to seal, and jointing lower end is threaded with central tube, and described top connection upper end is gingival cyst of mucous gland in the newborn buckle structure, described pressure retaining mechanism is made up of lock ring cover, lock ring, jointing, piston, central tube, lock ring is connected with lock ring cover, jointing by upper and lower screw thread, piston bush connects lock ring cover at central tube threaded upper ends, lock ring cover is positioned on jointing by starting pin, lock ring cover is sealed by the 2nd O type circle and jointing, described piston is overlapped by the 3rd O type circle and lock ring and seals, by the 4th O type circle and basepipe seal, there are 2 place's pressure transmission holes described central tube upper end near piston end surface place, described packing element sealing mechanism is made up of the piston be socketed in successively on central tube, packing element, lead ring, and described packing element is high temperature resistant packing element, and two ends are that stainless steel metal wire compacting forms and vulcanized rubber, described slips anchoring mechanism is made up of the upper cone be set on central tube, slip sleeve, slips, spring, lower cone, upper cone shear pin, lower cone shear pin, described upper cone upper end is connected with lead ring, slip sleeve is positioned on upper cone and lower cone by upper cone shear pin and lower cone shear pin respectively, described slips is arranged in slip sleeve, spring is arranged in slips interstitial hole, and the end face of spring props up slip sleeve, described solution sealing mechanism is by ratchet cover, ratchet, separate seal ring, deblocking pin, lower contact forms, described ratchet cover is connected with lower cone by screw thread, ratchet cover is enclosed within the cylindrical of ratchet, until ratchet cover lower end touches the step place of ratchet, contact step is 60 ° of angles, ratchet cover is sealed by the 5th O type circle and ratchet, ratchet is by the 6th O type circle and basepipe seal, separate the lower end inner circle import department that seal ring is arranged on ratchet, located by deblocking pin, described lower contact to be overlapped with ratchet by screw thread and is connected, overlapped by the 7th O type circle and ratchet and seal, lower contact upper end inner circle step fixed solution seal ring.
In technique scheme, described lock ring, inner circle buttless thread is 8 teeth, and be locking to the right, cylindrical buttless thread is 16 teeth, is left locking; Described lock ring cover, inner circle buttless thread is 16 teeth, and lock ring cover has 16 place's screwed holes, can install the startup pin of varying number according to starting pressure.
In technique scheme, described slip sleeve has 8 kidney slots at circumferencial direction, amounts to 2 rows, 1 row 4, and same-phase is uniformly distributed; Described slips is made up of 4 identical slips, and every sheet slips cylindrical upper end crown holds 30 ° down, and lower end crown holds 30 ° upward, has 1 place's flat-bottom hole and place's screwed hole in the middle of slips.
In technique scheme, described ratchet lower end has many stress grooves in the axial direction, and all having 1 place's screwed hole at the every sheet in elastic claw lower end formed, is a ring groove in the middle part of described solution seal ring cylindrical.Described lower contact, lower end according to particular requirement, can arrange different screw threads for mounting.
Technical solution of the present invention compared with prior art, has large endoporus full-bore, is a kind of outstanding retrievable insertion pipe packer; Pressure can be set according to field condition adjustment and conciliate seal pressure; High temperature high voltage resistant, not easily sand card, one-trip string can complete test, transforms, ask every constructions such as product, shutoff, back production.
Accompanying drawing explanation
Fig. 1 is the structural representation of hydraulic setting big orifice retrievable insertion pipe packer of the present invention.
Wherein: 1, top connection, 2, one O type circle, 3, jointing, 4, start pin, 5, 2nd O type circle, 6, lock ring cover, 7, lock ring, 8, 3rd O type circle, 9, 4th O type circle, 10, piston, 11, packing element, 12, lead ring, 13, upper cone, 14, central tube, 15, upper cone shear pin, 16, slip sleeve, 17, slips, 18, spring, 19, lower cone shear pin, 20, lower cone, 21, ratchet cover, 22, 5th O type circle, 23, 6th O type circle, 24, ratchet, 25, dig-in screw, 26, 7th O type circle, 27, deblocking pin, 28, separate seal ring, 29, lower contact.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, the present embodiment provides a kind of hydraulic setting big orifice retrievable insertion pipe packer, comprises Hui Cha mechanism, pressure retaining mechanism, packing element sealing mechanism, slips anchoring mechanism, separates sealing mechanism.Return inserting structure to be connected with central tube 14 by jointing 3, pressure retaining mechanism, packing element sealing mechanism are sleeved on central tube 14 from top to bottom successively, separate sealing mechanism and are connected with central tube 14 lower end.
Further, Hui Cha mechanism is made up of top connection 1, an O type circle 2, jointing 3, central tube 14.Jointing 3 upper end is threaded with top connection 1 and uses an O type circle 2 to seal, and lower end is threaded with central tube 14.Described top connection 1 upper end is gingival cyst of mucous gland in the newborn buckle structure.
Further, pressure retaining mechanism is made up of lock ring cover 6, lock ring 7, jointing 3, piston 10, central tube 14.Lock ring 7 overlaps 6 by upper and lower screw thread and lock ring, jointing 3 is connected, and piston 10 is enclosed within central tube 14 threaded upper ends and connects lock ring cover 6, and lock ring cover 6 is positioned on jointing 3 by starting pin 4.Lock ring cover 6 is sealed with jointing 3 by the 2nd O type circle 5, described lock ring 7, and inner circle buttless thread is 8 teeth, and be locking downwards, cylindrical buttless thread is 16 teeth, is upwards locking.Described lock ring cover 6, inner circle buttless thread is 16 teeth, and lock ring cover has 16 place's screwed holes, can install the startup pin 4 of varying number according to starting pressure.There are 2 place's pressure transmission holes described central tube 14 upper end near piston 10 end.Described piston 10 overlaps 6 by the 3rd O type circle 8 with lock ring and seals, and is sealed with central tube 14 by the 4th O type circle 9.
Further, packing element sealing mechanism is made up of the piston 10 be set in successively on central tube 14, packing element 11, lead ring 12.Described packing element 11 is high temperature resistant packing element, and two ends are that stainless steel metal wire compacting forms and vulcanized rubber.
Further, slips anchoring mechanism is made up of the upper cone 13 be set on central tube, slip sleeve 16, slips 17, lower cone 20, spring 18, upper shear pin 15, down cut pin 19.Described upper cone 13 upper end is connected with lead ring 12, and slip sleeve 16 is positioned on upper cone 13 and lower cone 20 by upper cone shear pin 15 and lower cone shear pin 19 respectively; Described slip sleeve 16 has 8 kidney slots at circumferencial direction, amounts to 2 rows, and 1 row 4, same-phase is uniformly distributed.Described slips 17 is made up of 4 identical slips, and every sheet slips cylindrical left end crown holds 30 ° down, and right-hand member crown holds 30 ° upward, has 1 place's flat-bottom hole and place's screwed hole in the middle of slips.Described spring 18 is arranged in slips 17 interstitial hole, slips 17 is arranged in slip sleeve 16, guarantee that the other end of spring props up the endoporus in the middle of 2 kidney slots of slip sleeve 16, constrained in card overcoat 16 by slips 17 by spring 16, when guaranteeing to go into the well, slip insert is lower than product maximum outside diameter.
Further, separate that sealing mechanism overlaps 21 by ratchet, ratchet 24, dig-in screw 25, separate seal ring 28, deblocking pin 27, lower contact 29 form.Ratchet cover 21 is enclosed within the cylindrical of ratchet 24, until ratchet overlaps the step place that 21 lower ends touch ratchet 24, contact step is 60 ° of angles.Ratchet cover 21 is sealed with ratchet 24 by the 5th O type circle 22, ratchet 24 is sealed with central tube 14 by the 6th O type circle 23, separate the lower end inner circle import department that seal ring 28 is arranged on ratchet 24, located by deblocking pin 27, lower contact 29 is overlapped 21 by screw thread and ratchet and is connected, fixedly prevent screw thread from releasing by dig-inning screw 25, lower contact 29 is overlapped 21 by the 7th O type circle 26 with ratchet and is sealed, lower contact 29 upper end inner circle step fixed solution seal ring 28.Described ratchet 24 lower end has many stress grooves in the axial direction, all has 1 place's screwed hole at the every sheet in elastic claw lower end formed.Be a ring groove in the middle part of described solution seal ring 28 cylindrical.Described lower contact 29, lower end according to particular requirement, can arrange different screw threads for mounting.
Operating principle of the present invention is:
Set: when using the present invention program, bottom connects a ball seat, or send well tool its own band one ball seat.Pitching is to ball seat, pump pressure, due to an O type circle 2, 2nd O type circle 5, 3rd O type circle 8, 4th O type circle 9, 5th O type circle 22, 6th O type circle 23, the sealing function of the 7th O type circle 26, the pressure transmission hole of pressure through central tube 14 top promotes piston 10 and moves downward, piston 10 be threaded lock ring cover 6, after pressure reaches starting pressure, piston 10 drives lock ring to overlap 6 and cuts off startup pin 4, continue descending, it is descending that piston 10 promotes packing element 11 lead ring 12 upper cone 13, cut off upper cone pin 15, promote slips 17, slips 17 drives slip sleeve 16 transmitting force to act on lower cone 20, cut off lower cone pin 19, slips 17 is expanded to sleeve pipe, Compress Spring 18, sting tight sleeve pipe, packing element 11 Expansion sealing sleeve pipe, lock ring cover 6 locks lock ring 7 under the descending power effect of piston 10, prevent packing element resilience, complete and set.
Deblocking: under enter special unsealing tool in lower contact 29, then upper lift is dynamic separates seal ring 28, until cut off deblocking pin 27, separate the groove milling bottom that seal ring 28 is up to ratchet 24, drive central tube 14 up together, the elastic claw retraction of ratchet 24, central tube 14 drives jointing 3 top connection 1 lock ring 7 up, until drive lock ring cover 6 and piston 10 up, packing element 11 resilience, ratchet 24 drives lower cone 20 descending, and slips 17 bounces back, drive slip sleeve 16 and upper cone 13 up, complete deblocking.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvement or distortion, these improve or distortion also should be considered as protection scope of the present invention.
Claims (4)
1. a hydraulic setting big orifice retrievable insertion pipe packer, is characterized in that: comprise Hui Cha mechanism, pressure retaining mechanism, packing element sealing mechanism, slips anchoring mechanism, separate sealing mechanism, described Hui Cha mechanism is made up of top connection, an O type circle, jointing, central tube, and jointing upper end is threaded with top connection and uses an O type circle to seal, and jointing lower end is threaded with central tube, and described top connection upper end is gingival cyst of mucous gland in the newborn buckle structure, described pressure retaining mechanism is made up of lock ring cover, lock ring, jointing, piston, central tube, lock ring is connected with lock ring cover, jointing by upper and lower screw thread, piston bush connects lock ring cover at central tube threaded upper ends, lock ring cover is positioned on jointing by starting pin, lock ring cover is sealed by the 2nd O type circle and jointing, described piston is overlapped by the 3rd O type circle and lock ring and seals, by the 4th O type circle and basepipe seal, there are 2 place's pressure transmission holes described central tube upper end near piston end surface place, described packing element sealing mechanism is made up of the piston be socketed in successively on central tube, packing element, lead ring, and described packing element is high temperature resistant packing element, and two ends are that stainless steel metal wire compacting forms and vulcanized rubber, described slips anchoring mechanism is made up of the upper cone be set on central tube, slip sleeve, slips, spring, lower cone, upper cone shear pin, lower cone shear pin, described upper cone upper end is connected with lead ring, slip sleeve is positioned on upper cone and lower cone by upper cone shear pin and lower cone shear pin respectively, described slips is arranged in slip sleeve, spring is arranged in slips interstitial hole, and the end face of spring props up slip sleeve, described solution sealing mechanism is by ratchet cover, ratchet, separate seal ring, deblocking pin, lower contact forms, described ratchet cover is connected with lower cone by screw thread, ratchet cover is enclosed within the cylindrical of ratchet, until ratchet cover lower end touches the step place of ratchet, contact step is 60 ° of angles, ratchet cover is sealed by the 5th O type circle and ratchet, ratchet is by the 6th O type circle and basepipe seal, separate the lower end inner circle import department that seal ring is arranged on ratchet, located by deblocking pin, described lower contact to be overlapped with ratchet by screw thread and is connected, overlapped by the 7th O type circle and ratchet and seal, lower contact upper end inner circle step fixed solution seal ring.
2. hydraulic setting big orifice retrievable insertion pipe packer according to claim 1, it is characterized in that: described lock ring, inner circle buttless thread is 8 teeth, and be locking downwards, cylindrical buttless thread is 16 teeth, is upwards locking; Described lock ring cover, inner circle buttless thread is 16 teeth, and lock ring cover has 16 place's screwed holes, can install the startup pin of varying number according to starting pressure.
3. hydraulic setting big orifice retrievable insertion pipe packer according to claim 1, is characterized in that: described slip sleeve has 8 kidney slots at circumferencial direction, amounts to 2 rows, 1 row 4, and same-phase is uniformly distributed; Described slips is made up of 4 identical slips, and every sheet slips cylindrical upper end crown holds 30 ° down, and lower end crown holds 30 ° upward, has 1 place's flat-bottom hole and place's screwed hole in the middle of slips.
4. hydraulic setting big orifice retrievable insertion pipe packer according to claim 1, it is characterized in that: described ratchet lower end has many stress grooves in the axial direction, all having 1 place's screwed hole at the every sheet in elastic claw lower end formed, is a ring groove in the middle part of described solution seal ring cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410467707.3A CN104265235B (en) | 2014-09-15 | 2014-09-15 | A kind of hydraulic setting big orifice retrievable insertion pipe packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410467707.3A CN104265235B (en) | 2014-09-15 | 2014-09-15 | A kind of hydraulic setting big orifice retrievable insertion pipe packer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104265235A true CN104265235A (en) | 2015-01-07 |
| CN104265235B CN104265235B (en) | 2017-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410467707.3A Active CN104265235B (en) | 2014-09-15 | 2014-09-15 | A kind of hydraulic setting big orifice retrievable insertion pipe packer |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106522879A (en) * | 2016-12-09 | 2017-03-22 | 中国石油集团西部钻探工程有限公司 | Large-drift-diameter bridge plug provided with claw pieces and rubber cylinder for packing |
| CN106761541A (en) * | 2017-03-28 | 2017-05-31 | 中国石油大学(北京) | A kind of Hydraulic Anchorage sealing device |
| CN107762442A (en) * | 2017-12-01 | 2018-03-06 | 中科金佳（北京）油田技术开发有限公司 | A kind of sump packer |
| CN108952614A (en) * | 2018-08-01 | 2018-12-07 | 西南石油大学 | A kind of ratchet type down-hole fishing device |
| CN109826587A (en) * | 2019-02-11 | 2019-05-31 | 中国石油天然气股份有限公司 | A kind of big orifice Water-isolation oil production packer and its operating method |
| CN111749645A (en) * | 2019-03-28 | 2020-10-09 | 中国石油天然气股份有限公司 | Blanking plug |
| CN112796695A (en) * | 2021-01-26 | 2021-05-14 | 四川省威沃敦化工有限公司 | Back-inserting mechanism of split type well completion packer |
| CN114320216A (en) * | 2022-02-16 | 2022-04-12 | 成都德维石油技术服务有限责任公司 | Packer |
| CN114427438A (en) * | 2020-10-12 | 2022-05-03 | 中国石油化工股份有限公司 | Multifunctional pressure testing device for shaft |
| CN115263229A (en) * | 2022-09-19 | 2022-11-01 | 山东普瑞思德石油技术有限公司 | Back-insertable sealing packer and using method thereof |
| CN115613984A (en) * | 2022-12-16 | 2023-01-17 | 中海石油(中国)有限公司 | Pressure self-adaptive anchoring packer reservoir protection pipe column |
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| CN204098849U (en) * | 2014-09-15 | 2015-01-14 | 四机赛瓦石油钻采设备有限公司 | A kind of hydraulic setting big orifice retrievable insertion pipe packer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20120160523A1 (en) * | 2010-12-28 | 2012-06-28 | Texproil S.R.L. | Downhole packer tool with safety systems for preventing undue set and release operations |
| RU2499884C1 (en) * | 2012-06-06 | 2013-11-27 | Общество с ограниченной ответственностью Научно-производственная фирма "Пакер" | Packer-anchor equipment for selective treatment of formation |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106522879A (en) * | 2016-12-09 | 2017-03-22 | 中国石油集团西部钻探工程有限公司 | Large-drift-diameter bridge plug provided with claw pieces and rubber cylinder for packing |
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| CN106761541A (en) * | 2017-03-28 | 2017-05-31 | 中国石油大学(北京) | A kind of Hydraulic Anchorage sealing device |
| CN107762442A (en) * | 2017-12-01 | 2018-03-06 | 中科金佳（北京）油田技术开发有限公司 | A kind of sump packer |
| CN108952614A (en) * | 2018-08-01 | 2018-12-07 | 西南石油大学 | A kind of ratchet type down-hole fishing device |
| CN108952614B (en) * | 2018-08-01 | 2020-08-11 | 西南石油大学 | Ratchet type is fishing device in pit |
| CN109826587A (en) * | 2019-02-11 | 2019-05-31 | 中国石油天然气股份有限公司 | A kind of big orifice Water-isolation oil production packer and its operating method |
| CN109826587B (en) * | 2019-02-11 | 2024-03-26 | 中国石油天然气股份有限公司 | Large-drift-diameter water-proof oil extraction packer and operation method thereof |
| CN111749645A (en) * | 2019-03-28 | 2020-10-09 | 中国石油天然气股份有限公司 | Blanking plug |
| CN114427438A (en) * | 2020-10-12 | 2022-05-03 | 中国石油化工股份有限公司 | Multifunctional pressure testing device for shaft |
| CN114427438B (en) * | 2020-10-12 | 2023-06-20 | 中国石油化工股份有限公司 | Multifunctional pressure testing device for shaft |
| CN112796695A (en) * | 2021-01-26 | 2021-05-14 | 四川省威沃敦化工有限公司 | Back-inserting mechanism of split type well completion packer |
| CN114320216B (en) * | 2022-02-16 | 2023-09-15 | 成都德维石油技术服务有限责任公司 | Packer |
| CN114320216A (en) * | 2022-02-16 | 2022-04-12 | 成都德维石油技术服务有限责任公司 | Packer |
| CN115263229A (en) * | 2022-09-19 | 2022-11-01 | 山东普瑞思德石油技术有限公司 | Back-insertable sealing packer and using method thereof |
| CN115613984A (en) * | 2022-12-16 | 2023-01-17 | 中海石油(中国)有限公司 | Pressure self-adaptive anchoring packer reservoir protection pipe column |
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| CN104265235B (en) | 2017-06-30 |
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