CN207004498U - Infinite stages switching sliding sleeve fracturing tool - Google Patents
Infinite stages switching sliding sleeve fracturing tool Download PDFInfo
- Publication number
- CN207004498U CN207004498U CN201720615203.0U CN201720615203U CN207004498U CN 207004498 U CN207004498 U CN 207004498U CN 201720615203 U CN201720615203 U CN 201720615203U CN 207004498 U CN207004498 U CN 207004498U
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- China
- Prior art keywords
- sliding sleeve
- well cementation
- inner sliding
- fracturing tool
- locator
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Abstract
A kind of infinite stages switching sliding sleeve fracturing tool, including well cementation sliding sleeve and fracturing tool string, described well cementation sliding sleeve includes the switch well cementation inner sliding sleeve being arranged in switch well cementation outer sliding sleeve, described switch well cementation outer sliding sleeve one end is provided with pressure break hole, inner sliding sleeve locating slot is provided with the inside of the other end, described fracturing tool string includes the injection pipe nipple for being arranged on coiled tubing lower end, the lower end of described injection pipe nipple is provided with the balanced valve being connected with packer, the lower end of described packer is provided with the anchor being connected with inner sliding sleeve locator, described inner sliding sleeve locator lower end is provided with round end guide shoe, described fracturing tool string is arranged in well cementation sliding sleeve when working, described inner sliding sleeve locator is arranged in inner sliding sleeve locating slot；The utility model has the advantages that reasonable in design, simple in construction, fracturing effect is good, energy Discrete control pressure break, can be promoted the use of on oil field.
Description
Technical field
The utility model belongs to exploits oil, gas and water from well；The method of soluble or solubilized material or slurry of mineral or
Equipment technical field, and in particular to infinite stages switching sliding sleeve fracturing tool.
Background technology
The staged fracturing processing of oil exploitation horizontal well, generally mechanical staged fracturing, this pressure break mode are raising
Reservoir permeability and increase exploitation well yield and the injection rate of injection well contribute, but its there is also following simultaneously
Shortcoming or deficiency：
By the mandatory section construction of fracturing packer, after pressure break completes an interval, upper lifting pipe post, the pressure of next interval is carried out
Construction is split, packer is difficult to unseal after so first causing pressure break complete；Because upper lifting pipe post packer sustains damage, seals not
Sternly, pressure break is caused to fail；Strata pressure is higher after pressure break is complete, easily causes blowout during upper lifting pipe post, leads to a disaster；This method operates
Property it is poor, technique is cumbersome, and well head and pressure break pipeline need to be dismounted by carrying tubing string every time, and program is complicated, and labor intensity of operating staff is big, safety
Property is poor.
At present, external more advanced staged fracturing of horizontal well technology be respectively provided with high efficiency, it is integrated the characteristics of, but due to
The limitations such as its tubular column structure complexity, construction cost height and technological service condition harshness, it is also much difficult that scale introduces application.State
Interior conventional fractured horizontal well technology is generally also than more conservative, although having attempted the pressure break skill such as liquid gum plug and mechanical coupling segment
Art, but operating efficiency has much room for improvement, and the conditions such as dynamic tubing string in fracturing process be present, is restricted its application.
During exploiting oil, currently need to urgently solve a technical problem is to provide a kind of simple in construction, pressure break effect
Fruit is good, and the big fracturing tool of Discrete control pressure break oil extraction is carried out to oil reservoir.
The content of the invention
Technical problem to be solved in the utility model is overcome the deficiencies in the prior art, provide it is a kind of it is reasonable in design,
It is simple in construction, fracturing effect is good, can Discrete control pressure break infinite stages switching sliding sleeve fracturing tool.
Solving the technical scheme that above-mentioned technical problem uses is：Including well cementation sliding sleeve and fracturing tool string, described well cementation
Sliding sleeve includes the switch well cementation inner sliding sleeve being arranged in switch well cementation outer sliding sleeve, and described switch well cementation outer sliding sleeve one end is provided with
Inner sliding sleeve locating slot is provided with the inside of pressure break hole, the other end, described fracturing tool string includes being arranged on coiled tubing lower end
Pipe nipple is sprayed, the lower end of described injection pipe nipple is provided with the balanced valve being connected with packer, the lower end of described packer
The anchor being connected with inner sliding sleeve locator is provided with, described inner sliding sleeve locator lower end is provided with round end guide shoe, described
Fracturing tool string work when be arranged in well cementation sliding sleeve, described inner sliding sleeve locator is arranged in inner sliding sleeve locating slot.
Because the utility model is employed by the multiple switchable well cementation sliding sleeves of sleeve pipe connection, by sleeve pipe and fracturing tool string
Enter well, then cement the well, after the completion of well cementation, lower coiled tubing switching tools, go to open the switch well cementation sliding sleeve on sleeve pipe, Ran Houjin
Row pressure break, after the completion of pressure break, sliding sleeve is closed, completes this section of pressure break, the technique can be with some selectively opened oil reservoir position
Sliding sleeve, pressure break is carried out, after the completion of pressure break, reselection switchs any oil reservoir sliding sleeve, continues pressure break, completes the pressure of all well sections
Split, during later stage christmas, if formation water output, can also lower switch instrument, close the sliding sleeve of the oil gas interval, ensure to adopt
The normal exploitation of oily operation；The utility model has that reasonable in design, simple in construction, fracturing effect is good, can Discrete control pressure break etc.
Advantage, it can be promoted the use of on oil field.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model well cementation sliding sleeve.
Fig. 2 is the structural representation of the utility model fracturing tool string.
In figure：1st, switch well cementation outer sliding sleeve；2nd, switch well cementation inner sliding sleeve；3rd, coiled tubing；4th, pipe nipple is sprayed；5th, balance
Valve；6th, packer；7th, anchor；8th, inner sliding sleeve locator；9th, round end guide shoe；A, pressure break hole；B, inner sliding sleeve locating slot.
Embodiment
The utility model is described in further details with reference to the accompanying drawings and examples, but the utility model is not limited to this
A little embodiments.
Embodiment 1
In Fig. 1, the utility model infinite stages switching sliding sleeve fracturing tool, including well cementation sliding sleeve and fracturing tool string, this
The well cementation sliding sleeve of embodiment includes the switch well cementation inner sliding sleeve 2 being arranged in switch well cementation outer sliding sleeve 1, switch well cementation outer sliding sleeve 1
One end is machined with pressure break hole a, other end inner side is machined with inner sliding sleeve locating slot b, and fracturing tool string includes being connected with screw threads for fastening
Part is connected to the injection pipe nipple 4 of the lower end of coiled tubing 3, and the lower end of injection pipe nipple 4 is provided with balance by screw threads for fastening connector
Valve 5, balanced valve 5 are ball-and-seat, prevent lower liquid from flowing back, and the lower end of balanced valve 5 is connected with screw threads for fastening connector installs
There is packer 6, the packer 6 of the present embodiment is commodity on the market, and packer 6 is used to the utility model being fixed on out
Close on well cementation inner sliding sleeve 2, to carry out perforation, taken out after perforating job, pressure break are complete, the lower end of packer 6 is connected with screw threads for fastening
Fitting is connected and installed with anchor 7, the switching tools tubing string of grappling coiled tubing 3 of anchor 7, the lower end screw thread of anchor 7
Fastening connection piece is connected and installed with inner sliding sleeve locator 8, and inner sliding sleeve locator 8 is accurately positioned, school is deep, inner sliding sleeve locator
8 lower ends are connected and installed with round end guide shoe 9 with screw threads for fastening connector, round end guide shoe 9 when the utility model is gone into the well from be oriented to and make
With getting lodged in the bottom of device in perforating job, the pressure of increase injection pipe nipple 4, increase the duct of hydraulic piercing, work
When, fracturing tool string is put into well cementation sliding sleeve, wherein, inner sliding sleeve locator 8 is arranged in inner sliding sleeve locating slot b.
Operation principle of the present utility model is as follows：
Operation principle of the present utility model is as follows：
After the completion of drilling well, by the multiple switchable well cementation sliding sleeves of sleeve pipe connection during setting of casing, by sleeve pipe and pressure break work
Tool seals in well, is accurately positioned using inner sliding sleeve locator 8, school depth, is then cemented the well, after the completion of well cementation, lower continuous oil
Pipe switching tools, open the switch well cementation sliding sleeve on sleeve pipe, and the high-pressure hydraulic pump containing quartz sand is accessed continuous oil by ground pump truck
Pipe 3, projected from the nozzle of injection pipe nipple 4, the rubber expansion of packer 6 is setting, while high-pressure water jet breakdown sleeve pipe, cement
Ring, passes multiple ducts on stratum, and after perforation, casing annulus carries out hydraulic fracturing, completes the hydraulic perforating and pressure break of the interval
Operating process, after the completion of pressure break, well cementation sliding sleeve is closed, completes this section of pressure break, the technique can be with some selectively opened oil reservoir
The sliding sleeve of position, pressure break is carried out, after the completion of pressure break, reselection switchs any oil reservoir sliding sleeve, continues pressure break, completes all well sections
Pressure break, during later stage christmas, if formation water output, can also lower switch instrument, close the sliding sleeve of the oil gas interval, protect
Demonstrate,prove the normal exploitation of oil producing operation.
Claims (1)
- A kind of 1. infinite stages switching sliding sleeve fracturing tool, it is characterised in that：Including well cementation sliding sleeve and fracturing tool string, described consolidates Well sliding sleeve includes the switch well cementation inner sliding sleeve being arranged in switch well cementation outer sliding sleeve, and described switch well cementation outer sliding sleeve one end is set There are pressure break hole, other end inner side to be provided with inner sliding sleeve locating slot, described fracturing tool string includes being arranged on coiled tubing lower end Injection pipe nipple, the lower end of described injection pipe nipple is provided with the balanced valve being connected with packer, under described packer End is provided with the anchor being connected with inner sliding sleeve locator, and described inner sliding sleeve locator lower end is provided with round end guide shoe, institute It is arranged at during the fracturing tool string work stated in well cementation sliding sleeve, described inner sliding sleeve locator is arranged in inner sliding sleeve locating slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720615203.0U CN207004498U (en) | 2017-05-28 | 2017-05-28 | Infinite stages switching sliding sleeve fracturing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720615203.0U CN207004498U (en) | 2017-05-28 | 2017-05-28 | Infinite stages switching sliding sleeve fracturing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207004498U true CN207004498U (en) | 2018-02-13 |
Family
ID=61445524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720615203.0U Expired - Fee Related CN207004498U (en) | 2017-05-28 | 2017-05-28 | Infinite stages switching sliding sleeve fracturing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207004498U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593803A (en) * | 2019-10-17 | 2019-12-20 | 成都理工大学 | Integrated infinite-stage fracturing packer |
| CN111472738A (en) * | 2020-03-12 | 2020-07-31 | 中国石油天然气股份有限公司 | Switchable well cementation sliding sleeve water control fracturing method for horizontal well |
| CN111594130A (en) * | 2020-05-11 | 2020-08-28 | 中国石油天然气股份有限公司 | Method for integrated periodical production of encryption adjustment of pressure, injection and extraction |
-
2017
- 2017-05-28 CN CN201720615203.0U patent/CN207004498U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593803A (en) * | 2019-10-17 | 2019-12-20 | 成都理工大学 | Integrated infinite-stage fracturing packer |
| CN111472738A (en) * | 2020-03-12 | 2020-07-31 | 中国石油天然气股份有限公司 | Switchable well cementation sliding sleeve water control fracturing method for horizontal well |
| CN111594130A (en) * | 2020-05-11 | 2020-08-28 | 中国石油天然气股份有限公司 | Method for integrated periodical production of encryption adjustment of pressure, injection and extraction |
| CN111594130B (en) * | 2020-05-11 | 2022-06-03 | 中国石油天然气股份有限公司 | Method for integrated periodical production of encryption adjustment of pressure, injection and extraction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 Termination date: 20190528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |