CN107366522A - The sliding sleeve opener and its sliding sleeve of bushing of a kind of variable-length - Google Patents
The sliding sleeve opener and its sliding sleeve of bushing of a kind of variable-length Download PDFInfo
- Publication number
- CN107366522A CN107366522A CN201710646867.8A CN201710646867A CN107366522A CN 107366522 A CN107366522 A CN 107366522A CN 201710646867 A CN201710646867 A CN 201710646867A CN 107366522 A CN107366522 A CN 107366522A
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- Prior art keywords
- sliding sleeve
- opener
- bushing
- rod
- control
- Prior art date
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- 238000012856 packing Methods 0.000 claims abstract description 19
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 210000000664 rectum Anatomy 0.000 abstract description 6
- 238000010276 construction Methods 0.000 description 19
- 238000000034 method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 210000000078 claw Anatomy 0.000 description 5
- 238000002789 length control Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 206010010214 Compression fracture Diseases 0.000 description 1
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides the sliding sleeve opener and its sliding sleeve of bushing of a kind of variable-length, sliding sleeve opener includes spacing control-rod and packing seat, spacing control-rod is located at the top of packing seat, the end of adjacent packing seat is provided with boss on spacing control-rod, the top of boss is disposed with compression spring, the external wall of upper portion of spacing control-rod is provided with opener valve body, and control spring leaf is being horizontally arranged with close to opener valve body end；Sliding sleeve of bushing includes sliding sleeve body, is provided with inner sliding sleeve on the inside of sliding sleeve body, inner sliding sleeve top is provided with top connection, adapter sleeve is provided with the end of sliding sleeve body, the end of adapter sleeve is provided with lower contact.Structure of the present invention increases the series of instrument by changing the length of opener and respective sleeve sliding sleeve, there is no the differential limitation of interior latus rectum between at different levels, full-bore and unlimited pole can be realized, and use is simple to operate, so as to efficiently solve the limitation of existing sliding sleeve of bushing instrument application.
Description
Technical field
The invention belongs to oil gas field low permeability reservoir renovation technique field, is related to a kind of change length control mechanism, is specially
The sliding sleeve opener and its sliding sleeve of bushing of a kind of variable-length, for Oil/gas Well cased hole completion fracturing reform technique.
Background technology
In recent years at home in oil field compression fracture construction, well completion of casing sliding sleeve separate stratum fracfturing pattern is using more and more, set
Pipe sliding sleeve completion separate stratum fracfturing construction mainly will enter well for the sliding sleeve of different payzones and cement the well together with sleeve pipe, all intervals
Pressing crack construction one, which plows, to be drilled into.With well completion of casing sliding sleeve pressing crack construction mode processes and the supporting gradual maturation of instrument, the work
The application of skill at the scene is also more and more, and its advantage shown is also more and more obvious, main following points：A 1. pipe
Post can complete the pressing crack construction to all intervals, realize a brill operation, saved the engineering time；2. without individually being penetrated
Hole operation, card layer is carried out without extra packer, not only saved the time but also saved cost；, can be fine 3. interior latus rectum is big
Ground meets the construction requirement of huge discharge, and can still keep larger interior latus rectum after having constructed, and facilitates the construction operations such as later stage well workover.
Well completion of casing sliding sleeve separate stratum fracfturing is just progressively receiving accreditation, this technique because of its efficient construction advantage by domestic each elephant
Pattern is just being becoming increasingly popular in the recovery process of unconventional petroleum resources.
Used sliding sleeve of bushing fracturing tool in the market, few, the Huo Zhecao that limited series by borehole size mostly
Make tedious process, there is a certain degree of limitation in use at the scene.Given this situation, present invention design, a kind of change is developed
Length control mechanism, the change length control mechanism mainly include sliding sleeve of bushing instruments at different levels and matched with sliding sleeve of bushing instruments at different levels
The sliding sleeve openers at different levels of set, series is realized by increasing the length of sliding sleeve of bushing instrument and corresponding stage sliding sleeve opener
Be continuously increased, there is no the differential limitation of interior latus rectum between at different levels, it is possible to achieve full-bore and unlimited pole, and the instrument makes at the scene
It is simple with middle operational sequence, it is complete in sliding sleeve of bushing so as to effectively solve used sliding sleeve of bushing fracturing tool in the market
The limitation applied in well separate stratum fracfturing transformation.
The content of the invention
The present invention develops a kind of variable for the construction Demand Design of Oil/gas Well cased hole completion sliding sleeve of bushing fracturing reform
The sliding sleeve opener and its sliding sleeve of bushing of length, sliding sleeve of bushing instrument of the present invention is mainly by changing opener and corresponding set
The length of pipe sliding sleeve increases the series of instrument, does not have the differential limitation of interior latus rectum between at different levels, it is possible to achieve full-bore and unlimited
Pole, and use is simple to operate, so as to efficiently solve the limitation of existing sliding sleeve of bushing instrument application.
The present invention realizes especially by following technical scheme：
A kind of sliding sleeve opener of variable-length, including center cavity, described center cavity are by spacing control-rod and disk
The inner chamber that root seat is formed, described spacing control-rod are located at the top of packing seat, the end of adjacent packing seat on spacing control-rod
End is provided with boss, and the top of described boss is disposed with compression spring, is fixed on opener valve at the top of described compression spring
The end of body, described opener valve body is located at the external wall of upper portion of spacing control-rod, in opener valve body and spacing control
The top of bar, which is provided with, solves lock ring, in the gap that described solution lock ring is formed between opener valve body and spacing control-rod,
Control spring leaf is being horizontally arranged with close to opener valve body end, described control spring leaf is used to drive spacing control-rod
Axially moved with compression spring.
The end of described spacing control-rod is horizontally arranged with the clamp-screw through boss, for fixing spacing control
Bar.
Described packing seat top inner side is provided with excessively stream ring, and described excessively stream ring is laterally positioned in center cavity.
Steel ball and control instrument pressure cap are provided with the outside of described packing seat end, described control instrument pressure cap is located at steel ball
Bottom.
Present invention also offers a kind of sliding sleeve of bushing to match with above-mentioned sliding sleeve opener, including sliding sleeve body, institute
Inner sliding sleeve is provided with the inside of the sliding sleeve body stated, top connection, the bottom of described top connection and cunning are provided with inner sliding sleeve top
The top of set body is fixed by the first stopping screw, and adapter sleeve is provided with the end of sliding sleeve body, described adapter sleeve
Top and the end of sliding sleeve body are fixed by the second stopping screw, and the end of described adapter sleeve is provided with lower contact.
The end of described inner sliding sleeve is provided with the 3rd stopping screw, C-shaped ring and pressure cap, the 3rd described stopping screw and
C-shaped ring is used to fix inner sliding sleeve in adapter sleeve, and described pressure cap is located on the inside of inner sliding sleeve end, for protecting the 3rd retaining spiral shell
Nail and C-shaped ring.
Described adapter sleeve is fixed with lower contact by the 4th stopping screw.
The bottom of described sliding sleeve body is provided through the shear pin of its wall, and stretches into the wall of inner sliding sleeve.
The inner surface of described inner sliding sleeve is recessed positioned at second formed with the first groove and the second groove, the first described groove
The top of groove.
Beneficial effects of the present invention are：
The present invention develops a kind of elongated for the construction Demand Design of Oil/gas Well cased hole completion sliding sleeve of bushing fracturing reform
Controlling organization is spent, the change length control mechanism mainly includes sliding sleeve of bushing, specialized opener.Well cementing process middle sleeve sliding sleeve with
Sleeve pipe is fixedly arranged in pit shaft together, by coiled tubing band specialized opener tripping in sliding sleeve of bushing, opening before pressing crack construction
Instrument claw, which stretchs out to match somebody with somebody with the inner sliding sleeve shoulder for the corresponding stage sliding sleeve of bushing instrument for needing to open, merges locking, adds in coiled tubing
Pressure, sliding sleeve shear pin is cut, sliding sleeve is moved down, and the by-pass prot of sliding sleeve of bushing instrument is opened, and realizes normal pressure break.Sliding sleeve of bushing instrument master
To increase the series of instrument by changing the length of opener and respective sleeve sliding sleeve, there is no interior latus rectum differential between at different levels
Limitation, it is possible to achieve full-bore and unlimited pole, and use is simple to operate, so as to efficiently solve existing sliding sleeve of bushing instrument application
Limitation.
Brief description of the drawings
Fig. 1 is the structural representation of sliding sleeve of bushing instrument of the present invention；
Fig. 2 is the structural representation of sliding sleeve opener of the present invention；
Fig. 3 is that state when sliding sleeve opener of the present invention passes through the sliding sleeve of bushing instrument that non-corresponding needs to open is shown
It is intended to；
Fig. 4 is that sliding sleeve opener is reached and is anchored to mutually in requisition for the state signal during sliding sleeve of bushing instrument of unlatching
Figure；
Fig. 5 is the view kept it turned on after phase fully opens in requisition for the sliding sleeve of bushing instrument of unlatching.
In figure：1st, top connection, the 2, first stopping screw, 3, sliding sleeve body, the 4, first groove, 5, inner sliding sleeve, 6, second is recessed
Groove, 7, shear pin, the 8, second stopping screw, 9, adapter sleeve, the 10, the 3rd stopping screw, 11, C-shaped ring, 12, pressure cap, 13,
Four stopping screws, 14, lower contact, 15, solution lock ring, 16, spacing control-rod, 17, opener valve body, 18, compression spring, 19,
Control spring leaf, 20, clamp-screw, 21, excessively stream ring, 22, packing seat, 23, steel ball, 24, control instrument pressure cap.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
As shown in figure 1, a kind of sliding sleeve opener of variable-length, including spacing control-rod 16 and packing seat 22, it is spacing
Control-rod 16 is located at the top of packing seat 22, and the internal face that spacing control-rod 16 is located at packing seat 22 forms opener of the present invention
Center cavity, the end of adjacent packing seat 22 is provided with boss on spacing control-rod 16, and the top of boss is disposed with compression spring
18, the end of opener valve body 17 is fixed at the top of compression spring 18, and opener valve body 17 is located at spacing control-rod 16
External wall of upper portion, the top of opener valve body 17 and spacing control-rod 16 be provided with solution lock ring 15, solution lock ring 15 positioned at open
In the gap formed between instrument valve body 17 and spacing control-rod 16, control is being horizontally arranged with close to the end of opener valve body 17
Spring leaf 19 processed, control spring leaf 19 are used to drive spacing control-rod 16 and compression spring 18 to axially move.
Preferably, the end of spacing control-rod 16 is horizontally arranged with the clamp-screw 20 through boss, is limited for fixed
Position control-rod 16.
Preferably, the top inner side of packing seat 22 is provided with excessively stream ring 21, and excessively stream ring 21 is laterally positioned in center cavity.
Preferably, steel ball 23 and control instrument pressure cap 24 are provided with the outside of the end of packing seat 22, control instrument pressure cap 24 is located at
The bottom of steel ball 23.
As shown in Fig. 2 a kind of sliding sleeve of bushing to match with above-mentioned sliding sleeve opener, including sliding sleeve body 3, sliding sleeve sheet
The inner side of body 3 is provided with inner sliding sleeve 5, and top connection 1 is provided with the top of inner sliding sleeve 5, and the end of sliding sleeve body 3 is provided with adapter sleeve 9,
The end of adapter sleeve 9 is provided with lower contact 14.
Preferably, the bottom of top connection 1 and the top of sliding sleeve body 3 are fixed by the first stopping screw 2；Adapter sleeve 9
Top and the end of sliding sleeve body 3 are fixed by the second stopping screw 8.
Preferably, the end of inner sliding sleeve 5 is provided with the 3rd stopping screw 10, C-shaped ring 11 and pressure cap 12, the 3rd stopping screw
10 and C-shaped ring 11 be used for fix inner sliding sleeve 5 in adapter sleeve 9, after sliding sleeve of bushing instrument is opened, C-shaped ring 11 is caught in accordingly
Groove so that this grade of sliding sleeve of bushing instrument can keep it turned on after unlatching and can't accidental switch off.Pressure cap 12 is located at interior cunning
Cover on the inside of 5 ends, for protecting the 3rd stopping screw 10 and C-shaped ring 11.
Preferably, adapter sleeve 9 is fixed with lower contact 14 by the 4th stopping screw 13.
Preferably, the bottom of sliding sleeve body 3 is provided through the shear pin 7 of its wall, and stretches into the wall of inner sliding sleeve 5
It is interior.
Preferably, the inner surface of inner sliding sleeve 5 is recessed positioned at second formed with the first groove 4 and the second groove 6, the first groove 4
The top of groove 6.
The sliding sleeve opener and its sliding sleeve of bushing of variable-length of the present invention, by increasing sliding sleeve of bushing instrument and corresponding stage
The length of sliding sleeve opener realizes being continuously increased for series, when sliding sleeve opener controls spring leaf 19 end projection and valve
When the distance between body end projection is shorter than the distance between first, second groove 6, the sliding sleeve opener can pass through this
Level sliding sleeve of bushing instrument, when sliding sleeve opener controls the end projection of spring leaf 19 and valve body end projection to be caught in inner sliding sleeve simultaneously
During two groove in 5, the sliding sleeve opener can open this grade of sliding sleeve of bushing instrument.
As shown in figure 3, when sliding sleeve opener control the distance between the end projection of spring leaf 19 and valve body end projection
When being shorter than the distance between first, second groove 6：The sliding sleeve of bushing is struck in the opener control end projection of spring leaf 19
During instrument undergauge position, control spring leaf 19 can move up along opener valve body 17, and drive spacing control-rod 16 to press
Contracting spring 18 moves upwards, until the control end projection of spring leaf 19 is sunk to inside opener valve body 17, while solves lock ring 15
The top claw bump position of opener valve body 17 is upwardly separated from out, now sliding sleeve opener can pass through this grade of sleeve pipe and slide
Set instrument.
As shown in figure 4, when simultaneously the sliding sleeve opener control end projection of spring leaf 19 and valve body end projection can be caught in
During first, second groove 6 in inner sliding sleeve 5：Enter in the sliding sleeve opener control end projection of spring leaf 19 and be caught in sleeve pipe
During sliding sleeve instrument 5 second groove 6 of inner sliding sleeve, its end claw projection of opener valve body 17 also enters simultaneously and is caught in inner sliding sleeve
5 first grooves 4, now continue to pressurize, then sliding sleeve opener moves downwardly together with sliding sleeve of bushing instrument inner sliding sleeve 5, and cuts
The shear pin 7 to break on the sliding sleeve of bushing instrument, the by-pass prot on this grade of sliding sleeve body 3 are slowly opened.As shown in figure 5, work as c-type
Ring 11 moves down and after the groove location on Snap joint set 9, sliding sleeve opener and this grade of sliding sleeve of bushing instrument inner sliding sleeve 5
Position fixation with respect to adapter sleeve 9 can no longer be moved up and down, and the by-pass prot on this grade of sliding sleeve of bushing tool body is opened completely, should
Level sliding sleeve of bushing instrument, which is opened, to be finished.
As in Figure 3-5, a kind of sliding sleeve opener of variable-length of the present invention and its sliding sleeve of bushing are carrying out Oil/gas Well
During the construction of cased hole completion fracturing reform, comprise the following steps：
(1) lower tubular column：The riding position of sliding sleeve of bushing instrument is determined and using series according to oil reservoir, has assembled tubing string, really
Protect sliding sleeve of bushing instruments at different levels and design position is in tubing string, by sliding sleeve of bushing tool tubular column tripping in pit shaft；
(2) cement the well：After sliding sleeve of bushing tool tubular column tripping in pit shaft, conventional cementing is carried out, sliding sleeve of bushing instrument is with sleeve pipe one
Rise and be fixedly arranged in pit shaft, now, in pit shaft sequentially consist of one-level sliding sleeve of bushing instrument, two level sliding sleeve of bushing instrument, three
Level sliding sleeve of bushing instrument, level Four sliding sleeve of bushing instrument, Pyatyi sliding sleeve of bushing instrument are until most rear class sliding sleeve of bushing instrument；
(3) open first order sliding sleeve of bushing instrument and carry out first layer pressing crack construction
The corresponding one-level sliding sleeve opener of first order sliding sleeve of bushing instrument is launched into pit shaft, and pumps the instrument,
When one-level sliding sleeve opener reach first order sliding sleeve of bushing instrument above sliding sleeve of bushing tool location at different levels when, open work
When the tool control end projection of spring leaf 19 strikes top sliding sleeve of bushing instrument undergauge position at different levels, control spring leaf 19 can be along
Opener valve body 17 moves up, and drives the spacing compression spring 18 of control-rod 16 to move upwards, until control spring leaf 19
End projection is sunk to inside opener valve body 17, while solves lock ring 15 to be upwardly separated from out the end claw of opener valve body 17 convex
Block position, now one-level sliding sleeve opener can pass through the sliding sleeve of bushing works at different levels above first order sliding sleeve of bushing instrument
Tool.When the one-level sliding sleeve opener control end projection of spring leaf 19 enters and is caught in first order sliding sleeve of bushing instrument inner sliding sleeve 5
During the second groove 6, its end claw projection of opener valve body 17 also enters simultaneously and is caught in the groove 4 of inner sliding sleeve 5 first, now
Continue to pressurize, then one-level sliding sleeve opener moves downwardly together with first order sliding sleeve of bushing instrument inner sliding sleeve 5, and cuts first
Shear pin 7 on level sliding sleeve of bushing instrument, the by-pass prot on first order sliding sleeve of bushing tool body are slowly opened, and work as C-shaped ring
11 move down and after the groove location on Snap joint set 9, in one-level sliding sleeve opener and first order sliding sleeve of bushing instrument
Sliding sleeve 5 is fixed with respect to the position of adapter sleeve 9 and can no longer moved up and down, and the by-pass prot on first order sliding sleeve of bushing tool body is complete
Open, first order sliding sleeve of bushing instrument is opened and finished, and then can carry out the pressing crack construction of first layer；
(4) after complete first layer to be onstructed, open second level sliding sleeve of bushing instrument and carry out second layer pressing crack construction：To pit shaft
Middle to launch the corresponding two level sliding sleeve opener of second level sliding sleeve of bushing instrument, as described in step (3), two level sliding sleeve opens work
Tool, which passes sequentially through the sliding sleeve of bushing instruments at different levels above the sliding sleeve of bushing instrument of the second level and is finally caught in, opens second level sleeve pipe cunning
Set instrument, it then can carry out the pressing crack construction of the second layer；
(5) after the complete second layer to be onstructed, corresponding sliding sleeve opener is launched successively and opens top sliding sleeve of bushing works at different levels
Have and complete pressing crack construction；
(6) after treating all interval pressing crack constructions, all sliding sleeve openers are salvaged by pit shaft using coiled tubing
Or directly bore and grind off all sliding sleeve openers, to ensure that it is unimpeded that construction terminates rear full pit shaft.
Embodiments of the invention, for the ordinary skill in the art, Ke Yili have been shown and described in pipe
Solution without departing from the principles and spirit of the present invention can to these embodiments carry out it is a variety of change, modification, replace and
Modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of sliding sleeve opener of variable-length, including center cavity, it is characterised in that：Described center cavity is by spacing control
The inner chamber that bar (16) processed and packing seat (22) are formed, described spacing control-rod (16) are located at the top of packing seat (22), limited
The end of adjacent packing seat (22) is provided with boss on position control-rod (16), and the top of described boss is disposed with compression spring
(18) end of opener valve body (17), described opener valve body, are fixed at the top of described compression spring (18)
(17) it is located at the external wall of upper portion of spacing control-rod (16), is provided with the top of opener valve body (17) and spacing control-rod (16)
Lock ring (15) is solved, described solution lock ring (15) is located at the gap formed between opener valve body (17) and spacing control-rod (16)
In, control spring leaf (19) is being horizontally arranged with close to opener valve body (17) end, described control spring leaf (19) is used
Axially moved in driving spacing control-rod (16) and compression spring (18).
A kind of 2. sliding sleeve opener of variable-length according to claim 1, it is characterised in that：Described spacing control
The end of bar (16) is horizontally arranged with the clamp-screw (20) through boss, for fixing spacing control-rod (16).
A kind of 3. sliding sleeve opener of variable-length according to claim 1, it is characterised in that：Described packing seat
(22) top inner side is provided with excessively stream ring (21), and described excessively stream ring (21) is laterally positioned in center cavity.
A kind of 4. sliding sleeve opener of variable-length according to claim 1, it is characterised in that：Described packing seat
(22) steel ball (23) and control instrument pressure cap (24) are provided with the outside of end, described control instrument pressure cap (24) is located at steel ball (23)
Bottom.
5. a kind of sliding sleeve of bushing to match with sliding sleeve opener described in claim 1, including sliding sleeve body (3), its feature
It is：Inner sliding sleeve (5) is provided with the inside of described sliding sleeve body (3), inner sliding sleeve (5) top is provided with top connection (1), it is described
The bottom of top connection (1) and the top of sliding sleeve body (3) it is fixed by the first stopping screw (2), at the end of sliding sleeve body (3)
End is provided with adapter sleeve (9), and the top of described adapter sleeve (9) passes through the second stopping screw (8) with the end of sliding sleeve body (3)
Fixed, the end of described adapter sleeve (9) is provided with lower contact (14).
6. sliding sleeve of bushing according to claim 5, it is characterised in that：The end of described inner sliding sleeve (5) is provided with the 3rd
Stopping screw (10), C-shaped ring (11) and pressure cap (12), the 3rd described stopping screw (10) and C-shaped ring (11) are used in fixed
In on adapter sleeve (9), described pressure cap (12) is located on the inside of inner sliding sleeve (5) end sliding sleeve (5), for protecting the 3rd stopping screw
And C-shaped ring (11) (10).
7. sliding sleeve of bushing according to claim 5, it is characterised in that：Described adapter sleeve (9) passes through with lower contact (14)
4th stopping screw (13) is fixed.
8. sliding sleeve of bushing according to claim 5, it is characterised in that：The bottom of described sliding sleeve body (3), which is provided with, to be passed through
The shear pin (7) of its wall is worn, and is stretched into the wall of inner sliding sleeve (5).
9. sliding sleeve of bushing according to claim 5, it is characterised in that：The inner surface of described inner sliding sleeve (5) is formed with
One groove (4) and the second groove (6), described the first groove (4) are located at the top of the second groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710646867.8A CN107366522B (en) | 2017-08-01 | 2017-08-01 | Sliding sleeve opening tool with variable length and sleeve sliding sleeve thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710646867.8A CN107366522B (en) | 2017-08-01 | 2017-08-01 | Sliding sleeve opening tool with variable length and sleeve sliding sleeve thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107366522A true CN107366522A (en) | 2017-11-21 |
| CN107366522B CN107366522B (en) | 2023-08-18 |
Family
ID=60309187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710646867.8A Active CN107366522B (en) | 2017-08-01 | 2017-08-01 | Sliding sleeve opening tool with variable length and sleeve sliding sleeve thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107366522B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590578A (en) * | 2018-04-25 | 2018-09-28 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of repeatable switching sliding sleeve mechanism for sliding sleeve of bushing |
| CN109267978A (en) * | 2018-09-07 | 2019-01-25 | 中国石油化工股份有限公司 | A kind of separate injection tubing string |
| CN114482957A (en) * | 2020-10-26 | 2022-05-13 | 中国石油化工股份有限公司 | Open hole full-bore infinite staged fracturing well completion device and fracturing well completion method thereof |
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| CN108590578A (en) * | 2018-04-25 | 2018-09-28 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of repeatable switching sliding sleeve mechanism for sliding sleeve of bushing |
| CN109267978A (en) * | 2018-09-07 | 2019-01-25 | 中国石油化工股份有限公司 | A kind of separate injection tubing string |
| CN114482957A (en) * | 2020-10-26 | 2022-05-13 | 中国石油化工股份有限公司 | Open hole full-bore infinite staged fracturing well completion device and fracturing well completion method thereof |
| CN114482957B (en) * | 2020-10-26 | 2024-05-24 | 中国石油化工股份有限公司 | Open hole full-drift diameter infinite stage staged fracturing completion device and fracturing completion method thereof |
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