CN202731864U - Rupture-proof packing tool - Google Patents
Rupture-proof packing tool Download PDFInfo
- Publication number
- CN202731864U CN202731864U CN201220409627.9U CN201220409627U CN202731864U CN 202731864 U CN202731864 U CN 202731864U CN 201220409627 U CN201220409627 U CN 201220409627U CN 202731864 U CN202731864 U CN 202731864U
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- valve body
- lower valve
- packing tool
- shear pin
- joint
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Abstract
The utility model relates to a rupture-proof packing tool in the field of downhole oil recovery devices for oil fields. According to the technical scheme, the rupture-proof packing tool is made by technical modification mainly focusing on a lower valve based on the first-to-file Thermal Recovery Primary Packing Tool. The lower valve is formed by connecting a lower valve I and a lower valve II through shear pins. Based on keeping the technical advantages of the first-to-file Thermal Recovery Primary Packing Tool, violent lifting up or lifting down of tubular piles in construction is avoided effectively, a packing channel is easy to open in advance, the tool cannot be used for normal construction, and accordingly construction reliability or safety is further increased.
Description
Technical field
The utility model relates to a kind of anti-breaking packing tool in oil field well extracting device of oil field, and it not only is fit to common well recovery uses, and more can satisfy the heavy crude heat extraction oil well and use.
Background technology
At present, the thermal-recovery sand-proof filling tool that the packing tool structure that use in the oil field is mainly central tube, conversion equipment, the sliding sleeve of giving up forms, its shortcoming or deficiency are: 1. be only applicable to flow pack thermal recovery sand-preventing process; 2. working procedure is numerous and diverse, and necessary in addition lower one-trip string is with just constructing behind the high temperature resistant Special seal device sealing annular space; 3. pack hole easily produces the accident that is not closed completely or opens by mistake the pack hole valve during lower washing pipe etc., and construction reliability or safety are low.The applicant in first to file a kind of " primary gravel packing tool for heat recovery " (publication number is CN101566054A).Its structure is that the top connection inwall is connected with tube connector, piston and sliding sleeve are housed in the annular space of top connection and tube connector, the bottom of sliding sleeve is connected with locker by shear pin, the locker bottom connects outer tube, the outside of outer tube is sheath from top to bottom successively, lock ring, the deblocking shear pin, black box, sleeve pipe, pad, the upper slips seat, slip sleeve, spring leaf, slip insert and lower slips seat, again by the external ring of strike-ofing of lower slips seat, the lower lower contact seat that connects, in connect the sand washing top connection, sealing shroud and spring, connect lower contact and reducer union in the lower contact seat, the bottom of tube connector connects inner central tube, valve body and adapter sleeve under the Nei Lian of the bottom of inner central tube, lower shear pin, connect joint for subsequent use under the lower valve body, at the built-in steel ball in the joint portion of joint for subsequent use and lower valve body.This technology has been compared significant technological progress than other technology, comprising: (1) can be used for thermal recovery filling anti-sand construction, also can carry out the fracturing sand control construction, and is withstand voltage, erosion resistance is strong, is fit to long-time construction operation; (2) its structure is the construction of thermal recovery sand control and production packer integral structure, only can finish the annular space sealing with a tubing string, puts into production, and technological process is simple; (3) improve conversion device structure, enlarge the pack hole aperture, high pressure resistant, erosion resistance, the gravel breakup rate is low; (4) increase the inside and outside latus rectum of valve-off, inner surface is smooth, construct smooth and easy, prevents that pack hole is not closed completely or opens by mistake phenomenon, has improved reliability and the safety of constructing.But find in the practical application, on suddenly, carry or transfer tubing string during construction, be easy to cause opening in advance of filling passage, cause the phenomenon that instrument can't normal construction.
The utility model content
The purpose of this utility model is exactly the problem that exists for " primary gravel packing tool for heat recovery " in first to file, provides a kind of service behaviour more stable anti-release packing tool.
Its technical scheme is by the main technological improvement of carrying out around lower valve body on the basis of first to file " primary gravel packing tool for heat recovery ".
Its structure is that the top connection inwall is connected with tube connector, piston and sliding sleeve are housed in the annular space of top connection and tube connector, the bottom of sliding sleeve is connected with locker by shear pin, the locker bottom connects outer tube, the outside of outer tube is sheath from top to bottom successively, lock ring, the deblocking shear pin, black box, sleeve pipe, pad, the upper slips seat, slip sleeve, spring leaf, slip insert and lower slips seat, again by the external ring of strike-ofing of lower slips seat, the lower lower contact seat that connects, in connect the sand washing top connection, sealing shroud and spring, connect lower contact and reducer union in the lower contact seat, the bottom of tube connector connects inner central tube, valve body and adapter sleeve under the Nei Lian of the bottom of inner central tube, lower shear pin, connect joint for subsequent use under the lower valve body, at the built-in steel ball in the joint portion of joint for subsequent use and lower valve body.Described lower valve body is to be connected to form by connecting shear pin with lower valve body II two parts by lower valve body I.
Also comprise in the such scheme in addition: described black box is comprised of the joint ring of the resistant to elevated temperatures hypotenuse joint ring of several piece and straight flange, and described slip insert is laterally zygomorphic interior oblique or outer tiltedly tooth combining structure.Be equipped with sealing ring at piston, locker outer tube with the bonding surface that cooperates separately.
The utility model is on the technical advantage basis that has kept at " primary gravel packing tool for heat recovery " of first to file, carry or transfer tubing string when effectively solving construction such as on violent, be easy to cause opening in advance of filling passage, instrument can't normal construction phenomenon, further improve construction reliability or safety.
Description of drawings
Accompanying drawing 1 is the overall structure figure of a kind of embodiment,
Accompanying drawing 2 is partial enlarged drawings of slip insert part,
Accompanying drawing 3 is partial enlarged drawings of lower valve body part.
Among the figure: 1, top connection, 2, piston, 3, the outer O type rubber seal of piston, 4, O type rubber seal in the piston, 5, tube connector, 6, steady nail, 7, sliding sleeve, 8, locker O type rubber seal, 9, locker, 10, shear pin (II), 11, lock ring, 12, the outer O type rubber seal of tube connector, 13, shear pin (M8), 14, sheath, 15, inner central tube, 16, thermal recovery black box (or claiming packing element), 17, sleeve pipe, 18, pad, 19, O type rubber seal in the sliding sleeve, 20, the upper slips seat, 21, outer tube, 22, slip sleeve, 23, spring leaf, 24, slip insert, 25, lower slips seat and interior O type rubber seal thereof, 26, the sand washing top connection, 27, packing ring, 28, O type rubber seal in the sand washing top connection, 29, the cup of strike-ofing, 30, steady nail (M10), 31, lower valve body I, 32, the outer O type rubber seal of lower valve body, 33, O type rubber seal in the sealing shroud, 34, the outer O type rubber seal of sealing shroud, 35, sealing shroud, 36, spring, 37, lower valve body II, 38, adapter sleeve, 39, shear pin, 40, O type rubber seal in the lower contact seat, 41, connect shear pin, 42, the lower contact seat, 43, steel ball, 44, lower contact, 45, O type rubber seal in the lower contact, 46, reducer union, 47, joint for subsequent use.
The specific embodiment
With reference to accompanying drawing 1, the packing tool of the present embodiment comprises device for filling, back washing device, releasing device reconciliation seal apparatus.Device for filling comprises top connection 1, lower valve body 41, shear pin 10, tube connector 5, piston 2, sliding sleeve 7, sheath 4, lock ring 11, outer tube 21, sheath 14, thermal recovery black box 16, pad 18, sleeve pipe 17, pad 18, upper slips seat 20, slip insert 24 and lower slips seat 25.Back washing device comprises sliding sleeve 7, locker 9, outer tube 21, inner central tube 15, sand washing top connection 26 and lower valve body 31 and 37.Releasing device comprises top connection 1, inner central tube 15, outer tube 21.The deblocking device comprises locker 9, deblocking shear pin 13, locker 9, lock ring 11, sheath 14, thermal recovery black box 16, slip insert 24.
With reference to accompanying drawing 2 described slip inserts be laterally zygomorphic interior tiltedly or outer tiltedly tooth combining structure.
With reference to accompanying drawing 3, lower valve body is to be connected to form by connecting shear pin 40 with lower valve body (II) 37 two parts by lower valve body (I) 31.
Operating principle is: this instrument is in the top connection pitching, ball is sitting in the lower valve body ball seat, the beginning pumping liquid is suppressed, shear pin 10 is cut off during certain pressure, liquid enters piston end surface from two holes of tube connector, pushing piston, sliding sleeve, sheath, and it is mobile at outer tube that sliding sleeve promotes lock ring, sheath promotes packing element, and packing element promotes pad, and pad and sleeve pipe are screwed connection, pad pushes away slip spider together with sleeve pipe, slip spider goes out slip insert with sloped roof, and slip insert and packing element act on the sleeve pipe simultaneously, has realized setting and grappling.After setting and grappling is finished, continue to suppress, under the end contact of lower valve body I during the valve body II, support zone on the lower valve body I breaks away from lower valve body II fully, and it is descending that lower valve body I drives lower valve body II, and the salient point on the lower valve body II breaks away from the groove of adapter sleeve, be depressed into the cavity of lower valve body I, thereby whole lower valve component is descending when realizing suppressing, and the filling Channel Perfect is opened, and can realize packing job.Liquid enters from sliding sleeve backwash hole during backwash, enters the mistake tank that the annular space by sand washing top connection and sand washing inner sleeve enters in lower valve body I and the lower valve body II by the outer annular space of locker, outer tube and inner central tube and enters oil pipe from central tube inside again.Forward top connection inner central tube separates with outer tube and realizes putting aside after the filling operation, and construction fulfils assignment.During deblocking, drag for lance and locker salvage link connect and on carry, deblocking shear pin 13 is cut off, the locker bottom struts lock ring and sheath, packing element is simultaneously up, slip insert is got back to firm part inside simultaneously.Joint for subsequent use is embedded on the adapter sleeve by the salient point of lower valve body II, adapter sleeve by screwed connection at central tube, thereby realized that joint for subsequent use is rigidly attached on the central tube, solved because of construction wrong, break the shear pin of lower valve body, open in advance the filling passage, the problem that whole instrument can't normal construction.
Claims (4)
1. anti-breaking packing tool, top connection (1) inwall is connected with tube connector (5), in the annular space of top connection (1) and tube connector (5) piston (2) and sliding sleeve (7) are housed, the bottom of sliding sleeve (7) is connected with locker (9) by shear pin (10), locker (9) bottom connects outer tube (21), the outside of outer tube (21) is sheath (14) from top to bottom successively, lock ring (11), deblocking shear pin (13), black box (16), sleeve pipe (17), pad (18), upper slips seat (20), slip sleeve (22), spring leaf (23), slip insert (24) and lower slips seat (25), again by the external ring (29) of strike-ofing of lower slips seat (25), the lower lower contact seat (42) that connects, in connect sand washing top connection (26), sealing shroud (35) and spring (36), connect lower contact (44) and reducer union (46) in the lower contact seat (42), the bottom of tube connector (5) connects inner central tube (15), valve body and adapter sleeve (35) under the bottom Nei Lian of inner central tube (15), lower shear pin (39), connect joint for subsequent use (47) under the lower valve body, at the joint portion built-in steel ball (40) of joint for subsequent use (47) with lower valve body, it is characterized in that: described lower valve body is to be connected to form by connecting shear pin (41) with lower valve body II (37) two parts by lower valve body I (31).
2. anti-breaking packing tool according to claim 1, it is characterized in that: described black box (16) is comprised of the joint ring of the resistant to elevated temperatures hypotenuse joint ring of several piece and straight flange.
3. anti-breaking packing tool according to claim 1 and 2 is characterized in that: described slip insert (24) for laterally zygomorphic interior tiltedly or outer tiltedly tooth combining structure.
4. anti-breaking packing tool according to claim 3 is characterized in that: be equipped with sealing ring at piston (2), locker (9), outer tube (21) with the bonding surface that cooperates separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220409627.9U CN202731864U (en) | 2012-08-18 | 2012-08-18 | Rupture-proof packing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220409627.9U CN202731864U (en) | 2012-08-18 | 2012-08-18 | Rupture-proof packing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202731864U true CN202731864U (en) | 2013-02-13 |
Family
ID=47657576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220409627.9U Expired - Lifetime CN202731864U (en) | 2012-08-18 | 2012-08-18 | Rupture-proof packing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202731864U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110231A (en) * | 2013-04-22 | 2014-10-22 | 中国石油化工股份有限公司 | Energy-saving packing device for heavy oil thermal recovery |
| CN106567692A (en) * | 2016-11-14 | 2017-04-19 | 王延睿 | Dual-control filling device and method for oil exploitation |
| CN108204224A (en) * | 2018-01-24 | 2018-06-26 | 胜利油田金岛实业有限责任公司胜岛石油机械厂 | A kind of no casing pressure packing tool |
| CN111980636A (en) * | 2020-08-28 | 2020-11-24 | 中国石油天然气股份有限公司 | Gravel filling device and method for sand prevention of oil layer |
| CN112240178A (en) * | 2019-07-18 | 2021-01-19 | 中石化石油工程技术服务有限公司 | Anti-breaking and anti-falling filling tool for oil-water well and construction method thereof |
-
2012
- 2012-08-18 CN CN201220409627.9U patent/CN202731864U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110231A (en) * | 2013-04-22 | 2014-10-22 | 中国石油化工股份有限公司 | Energy-saving packing device for heavy oil thermal recovery |
| CN106567692A (en) * | 2016-11-14 | 2017-04-19 | 王延睿 | Dual-control filling device and method for oil exploitation |
| CN108204224A (en) * | 2018-01-24 | 2018-06-26 | 胜利油田金岛实业有限责任公司胜岛石油机械厂 | A kind of no casing pressure packing tool |
| CN112240178A (en) * | 2019-07-18 | 2021-01-19 | 中石化石油工程技术服务有限公司 | Anti-breaking and anti-falling filling tool for oil-water well and construction method thereof |
| CN111980636A (en) * | 2020-08-28 | 2020-11-24 | 中国石油天然气股份有限公司 | Gravel filling device and method for sand prevention of oil layer |
| CN111980636B (en) * | 2020-08-28 | 2022-06-03 | 中国石油天然气股份有限公司 | Gravel filling device and method for sand prevention of oil layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |
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| CX01 | Expiry of patent term |