CN202215177U - Horizontal well casing patching reinforcing tool - Google Patents
Horizontal well casing patching reinforcing tool Download PDFInfo
- Publication number
- CN202215177U CN202215177U CN 201120334937 CN201120334937U CN202215177U CN 202215177 U CN202215177 U CN 202215177U CN 201120334937 CN201120334937 CN 201120334937 CN 201120334937 U CN201120334937 U CN 201120334937U CN 202215177 U CN202215177 U CN 202215177U
- Authority
- CN
- China
- Prior art keywords
- pipe
- shear pin
- ball
- horizontal well
- cover
- 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
Links
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 abstract description 11
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 210000000078 claw Anatomy 0.000 abstract 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
A horizontal well casing patching and reinforcing tool comprises an adjusting pipe, an upper expanding head, a lower expanding head, an upper sealing pipe, a lower sealing pipe, a central rod, a patching pipe, a lower pipe, a valve ball, a shear pin sleeve, shear pins, a ball seat, a steel ball, a ball sleeve, a split locking claw, a retaining sleeve, a lower plug and a locking ring. The adjusting pipe is sequentially connected with the upper expanding head, the sealing pipe, the patch pipe, the lower sealing pipe and the lower expanding head, the upper part of the ball sleeve is connected with the shear pin sleeve and the ball seat, the lower part of the ball sleeve is respectively connected with the lower plug and the locking ring, the split locking claw is respectively connected with the lower plug, the lower expanding head and the shear pin sleeve, and the lower pipe is respectively connected with the central rod and the shear pin sleeve. The utility model has the characteristics of satisfy needs, the seal strength that the horizontal well section used high, consolidate stability good, the life cycle is long, construction convenience etc, extensively use in oil recovery well casing subsidy technology.
Description
Technical field
The utility model relates to oil exploitation down-hole casing subsidy instrument, and particularly a kind of horizontal well sheath repairing is reinforced instrument.
Background technology
Along with the continuous progress of oil field development, casing damaged well quantity also increases thereupon, makes the oil field drive a well and counts and also decline greatly thereupon of output, has had a strong impact on oil field development effect and economic benefit.For the continuous application of horizontal well, its casing damaged well proportion rises especially year by year, particularly along with the further expansion of horizontal well thermal recovery application scale; The horizontal well cover decreases phenomenon will become more and more serious, and in casing damaged well, the horizontal well proportion rises year by year; Instrument is reinforced in existing a kind of straight well casing patching, and its structure is the lock dog locking mode, and sealing means is a metal to metal seal; Instrument is reinforced in the casing patching of this structure; For effect has been brought into play in the subsidy of straight well sleeve pipe, but it exists following shortcoming or deficiency simultaneously: 1. only be confined to straight well and use, there are a lot of problems in application in the horizontal well; 2. horizontal segment subsidy active force is inhomogeneous, reinforces stable low; 3. sealing intensity is little; 4. instrument is not placed in the middle in net horizontal section.5. lock dog distortion is prone to take off after giving up.
Summary of the invention
The purpose of the utility model provides a kind of horizontal well sheath repairing reinforcing instrument, adopts center-pole and lower end to connect distinguish lock pawl, and distinguish lock pawl can force the bloated head of sealed tube two end topers to be pressed into, and subsidizes reinforcing; Adopt high-temperature resistant rubber and metallic combination sealing, sealed faying face is long-pending to increase by 3 times, and sealing intensity is high, and the life-span is long, improves subsidy stability.The shortcoming or the deficiency that overcome effectively or avoid existing in the above-mentioned prior art.
The described horizontal well sheath repairing of the utility model is reinforced instrument, comprises the adjustment pipe, goes up the head that expands, the head that expands down, goes up sealed tube, lower seal pipe, center-pole, subsidy pipe, pipe, valve ball, shear pin cover, shear pin, ball seat, steel ball, ball cover, distinguish lock pawl, interstage sleeve, lower end cap, lock ring down.Said adjustment pipe is in order with last bloated head, sealed tube, subsidy pipe, lower seal pipe, bloated head is connected down; Ball cover top is connected with shear pin cover, ball seat; The bottom is connected with lower end cap, lock ring respectively; Distinguish lock pawl is connected with lower end cap, the following head that expands, shear pin cover respectively, and following pipe is connected with center-pole, shear pin cover respectively.
Wherein, said center-pole top is free end, and the bottom is connected with following pipe, and the bottom contacts with shear pin cover, ball seat respectively.Said distinguish lock pawl is connected with lower end cap in the bottom, locatees mutually with the inner groove on bloated down the bottom outside, and distinguish is locked pawl top and is connected with the outside that shear pin overlaps.Said pipe down top is connected with the bottom of center-pole, and the bottom is connected with the outer top of shear pin cover.Bottom between said ball cover and the shear pin cover is equipped with interstage sleeve, and the top between ball cover and the shear pin cover is equipped with shear pin, and the middle part between ball cover and the shear pin cover is equipped with steel ball.Said valve ball is placed on the ball seat.A said end of going up the head that expands, following bloated head is a pyramidal structure, and the other end is provided with inner groove.Said two ends of going up sealed tube, lower seal pipe are the soft metal structure.
The utility model has following advantage compared with prior art:
1, solves the subsidy instrument preferably and in horizontal well, used the problem that possibly occur;
2, satisfy the needs that net horizontal section uses;
3, sealing intensity is high, reinforces good stability;
4, easy construction, efficient is high;
5, the center-pole lower end is connected with distinguish lock pawl, and distinguish lock pawl can force the bloated head of sealed tube two end topers to be pressed into, and subsidizes reinforcing.
6, adopt high-temperature resistant rubber and metallic combination sealing, sealed faying face is long-pending to increase by 3 times, and sealing intensity is high, and the life-span is long, improves subsidy stability.
Description of drawings
Fig. 1 is a kind of example structure sketch map of the utility model.
The specific embodiment
Consult Fig. 1; A kind of horizontal well sheath repairing is reinforced instrument, comprise adjustment pipe 1, go up expand 2, expand 18 down, go up sealed tube 3, lower seal pipe 17, center-pole 4, subsidy pipe 5, manage 6 down, valve ball 7, shear pin cover 8, shear pin 9, ball seat 10, steel ball 11, ball cover 12, distinguish lock pawl 13, interstage sleeve 14, lower end cap 15, lock ring 16.Adjustment pipe 1 in order with upward expand 2, sealed tube 3, subsidy pipe 5, lower seal pipe 17, expand and 18 be connected down; Ball cover 12 tops are connected with shear pin cover 8, ball seat 10; The bottom is connected with lower end cap 15, lock ring 16 respectively; Distinguish lock pawl 13 respectively with lower end cap 15, expand 18 down, shear pin cover 8 is connected, following pipe 6 overlaps 8 with center-pole 4, shear pin respectively and is connected.
Center-pole 4 tops are free end, and the bottom is connected with following pipe 6, and the bottom contacts with shear pin cover 8, ball seat 10 respectively.Distinguish lock pawl is connected with lower end cap 15 in 13 bottoms, the bottom outside with following bloated 18 on inner groove locate mutually, distinguish is locked pawl 13 tops and shear pin and is overlapped 8 outside and be connected.Manage 6 tops down and be connected with the bottom of center-pole 4, the bottom is connected with the outer top of shear pin cover 8.Bottom between ball cover 12 and the shear pin cover 8 is equipped with interstage sleeve 14, and the top between ball cover 12 and the shear pin cover 8 is equipped with shear pin 9, and the middle part between ball cover 12 and the shear pin cover 8 is equipped with steel ball 11.Valve ball 7 is placed on the ball seat 10.Go up to expand 2,18 the end of expanding down is pyramidal structure, the other end is provided with inner groove.Said two ends of going up sealed tube 3, lower seal pipe 17 are the soft metal structure.
The subsidy process of the utility model: utilize drilling rod or oil pipe to drive the utility model and be lowered to the predetermined subsidy of arrival position in the oil well together.Direct flushing after instrument puts in place; Suppress then, expand 2 on last sealed tube 3, lower seal pipe 17 two ends, 18 the taper of expanding the down head that expands is pressed into, on the utmost point forced in the short time, expand 2, expanding down 18 produces radial dilatation; The section of being squeezed expansion produces permanent plastic deformation; Thereby pressure welding tightly is anchored on the internal surface of sleeve pipe on internal surface of casing, goes up the soft metal extrusion at sealed tube 3, lower seal pipe 17 two ends simultaneously; Sealed the annular space at subsidy pipe 5 two ends, reached purpose sleeve pipe shutoff and reparation.
Claims (8)
1. a horizontal well sheath repairing is reinforced instrument; Comprise adjustment pipe, go up the head that expands, the head that expands down, go up sealed tube, lower seal pipe, center-pole, subsidy pipe, pipe, valve ball, shear pin cover, shear pin, ball seat, steel ball, ball cover, distinguish lock pawl, interstage sleeve, lower end cap, lock ring down; It is characterized in that said adjustment pipe is in order with last bloated head, sealed tube, subsidy pipe, lower seal pipe, bloated head is connected down; Ball cover top is connected with shear pin cover, ball seat; The bottom is connected with lower end cap, lock ring respectively, and distinguish lock pawl is connected with lower end cap, the following head that expands, shear pin cover respectively, and following pipe is connected with center-pole, shear pin cover respectively.
2. horizontal well sheath repairing according to claim 1 is reinforced instrument, it is characterized in that said center-pole top is free end, and the bottom is connected with following pipe, and the bottom contacts with shear pin cover, ball seat respectively.
3. horizontal well sheath repairing according to claim 1 is reinforced instrument, it is characterized in that being connected with lower end cap in the said distinguish lock pawl bottom, locatees mutually with the inner groove on bloated down the bottom outside, and distinguish is locked pawl top and is connected with the outside that shear pin overlaps.
4. horizontal well sheath repairing according to claim 1 is reinforced instrument, it is characterized in that said pipe top down is connected with the bottom of center-pole, and the bottom is connected with the outer top of shear pin cover.
5. horizontal well sheath repairing according to claim 1 is reinforced instrument, it is characterized in that the bottom between said ball cover and the shear pin cover is equipped with interstage sleeve, and the top between ball cover and the shear pin cover is equipped with shear pin, and the middle part between ball cover and the shear pin cover is equipped with steel ball.
6. horizontal well sheath repairing according to claim 1 is reinforced instrument, it is characterized in that said valve ball is placed on the ball seat.
7. according to claim 1 or 5 described horizontal well sheath repairings reinforcing instruments, it is characterized in that a said end of going up the head that expands, following bloated head is a pyramidal structure, the other end is provided with inner groove.
8. horizontal well sheath repairing according to claim 1 is reinforced instrument, it is characterized in that said two ends of going up sealed tube, lower seal pipe are the soft metal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120334937 CN202215177U (en) | 2011-09-08 | 2011-09-08 | Horizontal well casing patching reinforcing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120334937 CN202215177U (en) | 2011-09-08 | 2011-09-08 | Horizontal well casing patching reinforcing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202215177U true CN202215177U (en) | 2012-05-09 |
Family
ID=46014437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120334937 Expired - Fee Related CN202215177U (en) | 2011-09-08 | 2011-09-08 | Horizontal well casing patching reinforcing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202215177U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213845A (en) * | 2013-05-29 | 2014-12-17 | 上海优强石油科技有限公司 | Hydraulic release telescopic pipe |
| CN105178901A (en) * | 2015-07-28 | 2015-12-23 | 中国石油化工股份有限公司 | Long well segment reinforcing pipe string |
-
2011
- 2011-09-08 CN CN 201120334937 patent/CN202215177U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213845A (en) * | 2013-05-29 | 2014-12-17 | 上海优强石油科技有限公司 | Hydraulic release telescopic pipe |
| CN105178901A (en) * | 2015-07-28 | 2015-12-23 | 中国石油化工股份有限公司 | Long well segment reinforcing pipe string |
| CN105178901B (en) * | 2015-07-28 | 2023-12-01 | 中国石油化工股份有限公司 | Long well section reinforcing tubular column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20160908 |