CN105696974B - Underground intelligent switch tool switch mechanism - Google Patents
Underground intelligent switch tool switch mechanism Download PDFInfo
- Publication number
- CN105696974B CN105696974B CN201610248785.3A CN201610248785A CN105696974B CN 105696974 B CN105696974 B CN 105696974B CN 201610248785 A CN201610248785 A CN 201610248785A CN 105696974 B CN105696974 B CN 105696974B
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- cylinder body
- switch
- piston
- valve body
- 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.)
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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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
-
- 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
- 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
Abstract
The present invention relates to down-hole switch technical field of tools, is a kind of underground intelligent switch tool switch mechanism；It includes switching valve body, piston and oil cylinder body, the lower end and the upper end of oil cylinder body for switching valve body are fixed together, piston bush is in switch valve body and oil cylinder body, upper limit annular groove is provided with the lower inside of switch valve body, the lower limit annular groove corresponding with upper limit annular groove is provided with the upper inner of oil cylinder body, annular boss is provided with the middle part of piston.Reasonable and compact in structure of the present invention, it is easy to use, the electric hydaulic energy is used as power, by piston bush in switch valve body and oil cylinder body, simultaneously spray-hole is provided with piston and oil cylinder body, while reducing fracturing fluid piston and oil cylinder body are washed away, the ejection efficiency of fracturing fluid is improved.Underground intelligent switch instrument is the composite can be widely applied to, used switching mechanism under normality can also be substituted.It is practical, have a wide range of application.
Description
Technical field
The present invention relates to down-hole switch technical field of tools, is a kind of underground intelligent switch tool switch mechanism.
Background technology
Staged fracturing typically uses ball-throwing type staged fracturing at present, and this pressure break mode has non-full-bore, pitching pressure break
After return ball is difficult, need it is lower again bore the drawbacks such as milling ball seat, pressure break time length, be gradually difficult to meet need of the market to pressure break
Ask.Underground intelligent switch instrument solve the problems, such as it is above-mentioned, usually be used for gate control system radio frequency card reader be integrated into well
On lower intelligent switch instrument, the electric hydaulic energy is used as power, information labels only need to be launched from well, can replace pitching etc.
Complex operations, the action of respective switch well is completed, this is just required to hydraulically driven switching mechanism.Traditional switching mechanism
Piston does not have spray-hole, and when switching mechanism is opened, fracturing fluid sprays from one end of piston, and the spray-hole through oil cylinder body sprays,
Traditional switching mechanism not only influences the ejection efficiency of fracturing fluid, and to piston ejection end and oil cylinder body hardness requirement very
It is high, it is difficult to meet the needs of current pressure break.
The content of the invention
The invention provides underground intelligent switch tool switch mechanism, overcomes the deficiency of above-mentioned prior art, it can have
The piston that effect solves traditional switching mechanism does not have spray-hole, the problem of so as to influence the ejection efficiency of fracturing fluid.
The technical scheme is that realized by following measures：Underground intelligent switch tool switch mechanism, including
Switch valve body, piston and oil cylinder body, the lower end and the upper end of oil cylinder body for switching valve body are fixed together, piston
Switch valve body is sleeved on in oil cylinder body, upper limit annular groove being provided with the lower inside of switch valve body, in oil cylinder body
Upper inner be provided with the lower limit annular groove corresponding with upper limit annular groove, annular boss, annular boss are provided with the middle part of piston
It is sleeved in upper limit annular groove and lower limit annular groove, the base part seat of annular boss is on the bottom wall of lower limit annular groove, in oil cylinder sheet
Oil cylinder spray-hole is circumferentially interval with the middle part of body, is provided with the piston below oil cylinder spray-hole corresponding with oil cylinder spray-hole
Piston spray-hole.
Here is the further optimization and/or improvements to foregoing invention technical scheme：
Above-mentioned switch valve body is threadably secured with oil cylinder body to link together.
Above-mentioned piston spray-hole can be four.
At least one sealing ring is respectively equipped with oil cylinder body above and below above-mentioned oil cylinder spray-hole.
Above-mentioned switch valve body is provided with least one sealing ring.
Above-mentioned oil cylinder body lower part is provided with external screw thread.
Reasonable and compact in structure of the present invention, it is easy to use, the electric hydaulic energy is used as power, by piston bush mounted in switch
In valve body and oil cylinder body, while spray-hole is provided with piston and oil cylinder body, is reducing fracturing fluid to piston and oil
While cylinder body washes away, the ejection efficiency of fracturing fluid is improved.Underground intelligent switch instrument is the composite can be widely applied to,
Used switching mechanism under normality can be substituted.It is practical, have a wide range of application.
Brief description of the drawings
Main view cross section structure diagram when accompanying drawing 1 is not opened for the switch of preferred embodiment.
Main view cross section structure diagram when accompanying drawing 2 is opened for the switch of preferred embodiment.
Coding in accompanying drawing is respectively：1 is switch valve body, and 2 be piston, and 3 be oil cylinder body, and 4 be upper limit annular groove, 5
It is annular boss for lower limit annular groove, 6,7 be oil cylinder spray-hole, and 8 be piston spray-hole, and 9 be external screw thread.
Embodiment
The present invention is not limited by following embodiments, can technique according to the invention scheme and actual conditions it is specific to determine
Embodiment.
In the present invention, for the ease of description, the description of the relative position relation of each part is according to Figure of description
Butut mode be described, such as：The position relationship of upper and lower, left and right etc. is that the Butut direction of foundation Figure of description is come
Determine.
With reference to embodiment and accompanying drawing, the invention will be further described：
As shown in accompanying drawing 1,2, the underground intelligent switch tool switch mechanism includes switch valve body 1, piston 2 and oil cylinder sheet
Body 3, lower end and the upper end of oil cylinder body 3 for switching valve body 1 are fixed together, piston 2 be sleeved on switch valve body 1 and
In oil cylinder body 3, upper limit annular groove 4 is provided with the lower inside of switch valve body 1, is provided with the upper inner of oil cylinder body 3
The lower limit annular groove 5 corresponding with upper limit annular groove 4, annular boss 6 is provided with the middle part of piston 2, annular boss 6 is sleeved on the upper limit
In position annular groove 4 and lower limit annular groove 5, the base part seat of annular boss 6 is on the bottom wall of lower limit annular groove 5, at the middle part of oil cylinder body 3
Oil cylinder spray-hole 7 is circumferentially interval with, is provided with the piston 2 below oil cylinder spray-hole 7 corresponding with oil cylinder spray-hole 7
Piston spray-hole 8.In use, when piston spray-hole 8 and oil cylinder spray-hole 7 to it is upper when, switching mechanism is in opening, pressure break
Liquid sprays by oil cylinder spray-hole 7 and piston spray-hole 8, reaches pressure break purpose；When piston spray-hole 8 and oil cylinder spray-hole 7 not
Switching mechanism is closed during to corresponding to, and fracturing fluid can not spray through oil cylinder spray-hole 7, reach the purpose of closing.The present invention
Underground intelligent switch instrument is can be widely applied to, used switching mechanism under normality can also be substituted.It is practical, using model
Enclose wide.
Above-mentioned underground intelligent switch tool switch mechanism can be made further optimization and/or improvements according to being actually needed：
As shown in accompanying drawing 1,2, for the ease of installation and removal, switch valve body 1 and the company of being threadably secured of oil cylinder body 3
It is connected together.
As shown in accompanying drawing 1,2, piston spray-hole 8 can be four.
As shown in accompanying drawing 1,2, in order to increase sealing, distinguish above and below oil cylinder spray-hole 8 on oil cylinder body 3
Provided with least one sealing ring.
As shown in accompanying drawing 1,2, in order to increase sealing, switch valve body 1 is provided with least one sealing ring.
As shown in accompanying drawing 1,2, for the ease of connection, the bottom of oil cylinder body 3 is provided with external screw thread 9.In order to prevent fracturing fluid will
Oil cylinder body 3 is thrust, and the A/F of piston spray-hole 8 is smaller 3-5mm than the A/F of oil cylinder spray-hole 7（It is not limited only to 3-5mm,
It can adjust according to actual conditions）.
Above technical characteristic constitutes highly preferred embodiment of the present invention, and there is stronger adaptability and optimal implementation to imitate for it
Fruit, can be according to the non-essential technical characteristic of increase and decrease be actually needed, to meet the needs of different situations.
Claims (10)
1. a kind of underground intelligent switch tool switch mechanism, it is characterised in that including switch valve body, piston and oil cylinder body, open
The lower end and the upper end of oil cylinder body for closing valve body are fixed together, and piston bush is mounted in switch valve body and oil cylinder body
It is interior, upper limit annular groove is provided with the lower inside of switch valve body, is provided with and upper limit annular groove in the upper inner of oil cylinder body
Corresponding lower limit annular groove, is provided with annular boss in the middle part of piston, and annular boss is sleeved on upper limit annular groove and lower limit ring
In groove, the base part seat of annular boss is circumferentially interval with oil cylinder spray on the bottom wall of lower limit annular groove in the middle part of oil cylinder body
Perforation, the piston spray-hole corresponding with oil cylinder spray-hole is provided with the piston below oil cylinder spray-hole.
2. underground intelligent switch tool switch mechanism according to claim 1, it is characterised in that switch valve body and oil cylinder
Body, which is threadably secured, to link together.
3. underground intelligent switch tool switch mechanism according to claim 1 or 2, it is characterised in that piston spray-hole is four
It is individual.
4. underground intelligent switch tool switch mechanism according to claim 1 or 2, it is characterised in that above oil cylinder spray-hole
At least one sealing ring is respectively equipped with oil cylinder body with lower section.
5. underground intelligent switch tool switch mechanism according to claim 3, it is characterised in that above oil cylinder spray-hole and
Lower section is respectively equipped with least one sealing ring on oil cylinder body.
6. underground intelligent switch tool switch mechanism according to claim 1 or 2, it is characterised in that switch valve body is provided with
At least one sealing ring.
7. underground intelligent switch tool switch mechanism according to claim 5, it is characterised in that switch valve body is provided with extremely
A few sealing ring.
8. underground intelligent switch tool switch mechanism according to claim 1 or 2, it is characterised in that oil cylinder body lower part is set
There is external screw thread.
9. underground intelligent switch tool switch mechanism according to claim 5, it is characterised in that oil cylinder body lower part is provided with
External screw thread.
10. underground intelligent switch tool switch mechanism according to claim 7, it is characterised in that oil cylinder body lower part is provided with
External screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610248785.3A CN105696974B (en) | 2016-04-20 | 2016-04-20 | Underground intelligent switch tool switch mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610248785.3A CN105696974B (en) | 2016-04-20 | 2016-04-20 | Underground intelligent switch tool switch mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105696974A CN105696974A (en) | 2016-06-22 |
| CN105696974B true CN105696974B (en) | 2018-03-27 |
Family
ID=56217195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610248785.3A Active CN105696974B (en) | 2016-04-20 | 2016-04-20 | Underground intelligent switch tool switch mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105696974B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5425424A (en) * | 1994-02-28 | 1995-06-20 | Baker Hughes Incorporated | Casing valve |
| CN202900225U (en) * | 2012-09-28 | 2013-04-24 | 中国石油天然气股份有限公司 | A tubular column for a stage-unlimited intelligent well cementation sliding sleeve separate layer fracturing reconstruction technology |
| CN203175527U (en) * | 2013-01-22 | 2013-09-04 | 中国石油天然气股份有限公司 | Underground electric hydraulic control fracturing slide bushing |
| CN104088602B (en) * | 2014-06-18 | 2016-08-17 | 中国石油集团川庆钻探工程有限公司 | Ground controls the method for underground sliding sleeve |
| CN204225849U (en) * | 2014-11-06 | 2015-03-25 | 长江大学 | A kind of fluid pressure type sliding sleeve switch instrument |
| CN205577947U (en) * | 2016-04-20 | 2016-09-14 | 中国石油集团西部钻探工程有限公司 | Intelligence switch instrument on -off mechanism in pit |
-
2016
- 2016-04-20 CN CN201610248785.3A patent/CN105696974B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105696974A (en) | 2016-06-22 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191009 Address after: No. 6, liupukang, Xicheng District, Beijing 100120 Co-patentee after: CNPC Xibu Drilling Engineering Company Limited Patentee after: PetroChina Natural Gas Group Co., Ltd. Address before: 834000 the Xinjiang Uygur Autonomous Region Karamay Friendship Road No. 115 joint office building oil testing company Patentee before: CNPC Xibu Drilling Engineering Company Limited |
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| TR01 | Transfer of patent right |