CN203321475U - Oil field horizontal well clustering sliding sleeve fracturing string - Google Patents
Oil field horizontal well clustering sliding sleeve fracturing string Download PDFInfo
- Publication number
- CN203321475U CN203321475U CN2013203191139U CN201320319113U CN203321475U CN 203321475 U CN203321475 U CN 203321475U CN 2013203191139 U CN2013203191139 U CN 2013203191139U CN 201320319113 U CN201320319113 U CN 201320319113U CN 203321475 U CN203321475 U CN 203321475U
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- CN
- China
- Prior art keywords
- fracturing
- sliding sleeve
- clustering
- horizontal well
- packer
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- 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
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- 238000010276 construction Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 1
- 238000011017 operating method Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Abstract
The utility model provides an oil field horizontal well clustering sliding sleeve fracturing string, characterized by safe joint (1), bore hole packer (2), fracturing sliding sleeve (3), disjointed packer (4), level pressure ball seat (5) link together in proper order through the sleeve pipe. The utility model is used for in horizontal well clustering fracturing, as the working string, adopt the bowling to open formula fracturing sliding sleeve (3) step by the casing string to simplified the operating procedure, reduced the liquid flow friction in the pit and hindered, and can realize that the construction tubular column accomplishes 10-15 grades of clustering sliding sleeve fracturing.
Description
Technical field: the utility model relates to a kind of oil extraction in oil field tubing string, especially for a kind of oilfield horizontal well sub-clustering sliding sleeve fracturing tubing string of horizontal well production.
Background technology: before the utility model, the pressure break that each oilfield horizontal well carries out after the sub-clustering perforation adopts drawing type or mechanical type sub-clustering fracturing string more, because this tubing string is to adopt tubing string as work string, and in work progress, need repeatedly to rise, tripping operation, not only complicated operation, down-hole fluid flow frictional resistance are large, have also limited the progression of sub-clustering pressure break.
Summary of the invention: the purpose of this utility model is: for horizontal well sub-clustering pressure break provides a kind of oilfield horizontal well sub-clustering sliding sleeve fracturing tubing string, because this tubing string is to using the long string post as work string, and adopt pitching opening type fracturing sliding bush step by step, thereby simplified operation sequence, reduced the down-hole fluid flow frictional resistance, improved the possibility that increases sub-clustering pressure break progression.
The purpose of this utility model realizes by following measures: a kind of oilfield horizontal well sub-clustering sliding sleeve fracturing tubing string, comprise safety joint, open hole packer, fracturing sliding bush, disconnection packer, level pressure ball seat, it is characterized in that safety joint, open hole packer, fracturing sliding bush, disconnection packer, level pressure ball seat are connected in turn by sleeve pipe.
The purpose of this utility model can also realize by following measures: in oilfield horizontal well sub-clustering sliding sleeve fracturing tubing string, can consist of multistage fracturing sliding sleeve, disconnection packer.
The utility model is for staged fracturing of horizontal well, can the long string post as work string, and adopt pitching opening type fracturing sliding bush step by step, thereby simplified operation sequence, reduce the down-hole fluid flow frictional resistance, and can realize that an operating tool string completes 10-15 level sub-clustering sliding sleeve fracturing.
Accompanying drawing explanation: the schematic diagram that Fig. 1 is oilfield horizontal well sub-clustering sliding sleeve fracturing tubing string.
The specific embodiment: oilfield horizontal well sub-clustering sliding sleeve fracturing tubing string, comprise safety joint 1, open hole packer 2, fracturing sliding bush 3, disconnection packer 4, level pressure ball seat 5, its safety joint 1, open hole packer 2, fracturing sliding bush 3, disconnection packer 4, level pressure ball seat 5 are connected in turn by sleeve pipe; The sub-clustering pressure break combination wherein consisted of fracturing sliding bush 3, disconnection packer 4 is should be 10-15 level relative to stratum 6.
The specific embodiment and the principle of oilfield horizontal well sub-clustering sliding sleeve fracturing tubing string are:
1, by design pipe string structural order fracturing tubing string (see figure 1), the magnetic orientation degree of depth is checked, the through wash well;
2, the well head fracturing device is installed, surface line circulation, configuration fracturing fluid, carry out the fracturing device pressure testing;
3, make whole packers envelope that rises from pressurization in oil pipe, pitching improves pressure disengagement safety joint 1 again, then trip out the top oil pipe, carry out step by step the casing fracturings such as pump prepad fluid, pump load fluid, pump displacement fluid, every one-level of constructing is all to realize the unlatching of fracturing sliding bush 3 at the corresponding levels by delivering the lightweight ball;
4, the closing well open flow returns row, returns continuously in time the discharge fracturing fluid construction that fulfils assignment after stop-spraying.
Claims (1)
1. an oilfield horizontal well sub-clustering sliding sleeve fracturing tubing string, comprise safety joint, open hole packer, fracturing sliding bush, disconnection packer, level pressure ball seat, it is characterized in that: safety joint, open hole packer, fracturing sliding bush, disconnection packer, level pressure ball seat are connected in turn by sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203191139U CN203321475U (en) | 2013-06-05 | 2013-06-05 | Oil field horizontal well clustering sliding sleeve fracturing string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203191139U CN203321475U (en) | 2013-06-05 | 2013-06-05 | Oil field horizontal well clustering sliding sleeve fracturing string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203321475U true CN203321475U (en) | 2013-12-04 |
Family
ID=49660838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203191139U Expired - Fee Related CN203321475U (en) | 2013-06-05 | 2013-06-05 | Oil field horizontal well clustering sliding sleeve fracturing string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203321475U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437618A (en) * | 2016-09-06 | 2017-02-22 | 中国石油天然气股份有限公司 | Segmented well completion pipe column, segmented reconstruction pipe column and oil well reconstruction device |
-
2013
- 2013-06-05 CN CN2013203191139U patent/CN203321475U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437618A (en) * | 2016-09-06 | 2017-02-22 | 中国石油天然气股份有限公司 | Segmented well completion pipe column, segmented reconstruction pipe column and oil well reconstruction device |
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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 |
Granted publication date: 20131204 Termination date: 20210605 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |