CN201057037Y - One-time lifted fracturing string of horizontal well - Google Patents
One-time lifted fracturing string of horizontal well Download PDFInfo
- Publication number
- CN201057037Y CN201057037Y CNU2007201694532U CN200720169453U CN201057037Y CN 201057037 Y CN201057037 Y CN 201057037Y CN U2007201694532 U CNU2007201694532 U CN U2007201694532U CN 200720169453 U CN200720169453 U CN 200720169453U CN 201057037 Y CN201057037 Y CN 201057037Y
- Authority
- CN
- China
- Prior art keywords
- packer
- oil pipe
- horizontal well
- well
- utility
- 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
- 238000011010 flushing procedure Methods 0.000 claims description 11
- 241000209094 Oryza Species 0.000 claims description 3
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims 4
- 235000019198 oils Nutrition 0.000 claims 4
- 235000019774 Rice Bran oil Nutrition 0.000 claims 1
- 239000008165 rice bran oil Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 5
- 239000004576 sand Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000011001 backwashing Methods 0.000 abstract 4
- 238000005516 engineering process Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 208000010392 Bone Fractures Diseases 0.000 description 2
- 206010017076 Fracture Diseases 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a horizontal well once lifting fractured tubular column, which is applied in the staged fracturing of an oil field horizontal well. The utility model is characterized in that the connection of the horizontal well once lifting fracture tubular column from up to down adopts a guide head, the guide head is connected with a compulsive desterilizing packer, 20 to 100 meters oil pipes is connected at the upper part of the compulsive desterilizing packer, an one-way valve is connected between the 20 to 100 meters oil pipes, a back washing well packer is connected at the upper part of the oil pipe, a hydraulic anchor is connected at the upper part of the back washing well packer, a safety joint is connected at the upper part of the hydraulic anchor, and a heavy weight oil pipe is connected from the upper part of the safety joint to a well mouth. A check valve and a sand blower are connected on the oil pipe between the two packers. The effect of the utility model is that the two packers respectively lock a section of stratus required to be fractured, and different pressure is used to perform construction, and the success ratio is high; the utility model has a back washing function, and has a sand back washing function and a jam release measure, and the working construction is safe; a trip of working tubular column finishes various sections of fracture, the working time is saved, the working cost can be reduced, and the working efficiency is improved.
Description
Technical field
The utility model relates to oil well fracturing technique field, and particularly a kind of horizontal well in segments fracturing string is carried the tubular column structure that mode realizes a tubing string pressure break multistage stratum on a kind of can the utilization.
Background technology
At present, the oilfield horizontal well pressure break mainly adopts limited entry fracture treatment technology, pitching limited entry fracture treatment technology, liquid gum plug staged fracturing technology and mechanical type staged fracturing technology both at home and abroad.The tubular column structure of mechanical type staged fracturing technology mainly is made up of packer and bridging plug etc.Mechanical type staged fracturing technology is a kind of segmentation reforming techniques method.Adopt mechanical type staged fracturing technology can realize staged fracturing, but this job practices has deficiency, long as the engineering time, complex procedures, operation often, the construction cost height, efficiency of construction is lower, is unfavorable for that carrying out staged fracturing at horizontal well constructs.
The utility model content
The purpose of this utility model is: provide a kind of horizontal well once to go up pressure-raising and split tubing string, realize putting forward on a tubing string purpose on pressure break multistage horizontal well stratum.Satisfy the fractured horizontal well transformation by this tubing string, reduce the fracturing work time, reduce operating cost, improve construction effect.
The technical solution adopted in the utility model is: horizontal well is once gone up pressure-raising and is split tubing string, comprise oil pipe, hydraulic anchor, packer, ball-and-seat and centralizer, it is characterized in that: horizontal well is once gone up pressure-raising, and to split tubing string connection from bottom to top be guide head, guide head connects forces deblocking packer, force deblocking packer, top is connected with the oil pipe of 20-100 rice, in the middle of the oil pipe of this 20-100 rice, be connected with ball-and-seat, the top of oil pipe connects the anti-flushing well packer, the top of anti-flushing well packer connects hydraulic anchor, the top attachment security joint of hydraulic anchor, what the top of safety joint to well head connected is heavy wall tubing.
Split tubing string realization recoil sand technology in order to utilize this horizontal well once to go up pressure-raising, on the oil pipe between anti-flushing well packer and the pressure deblocking packer, be connected with sandblaster.Promptly on the oil pipe between two packers, not only be connected with ball-and-seat, also be connected with sandblaster.
Basic functional principle is: utilize upper and lower two packer single deck tape-recorder pressure break stratum, adopt the liquid filling pressure set packer, stop to annotate the automatic deblocking of fracturing fluid packer; Go up pressure-raising and split tubing string and set another stratum again after finishing a formation breakdown, realize separate stratum fracfturing, one time the utility model tubing string can be finished the job execution of multistage formation breakdown.
The beneficial effects of the utility model: the utility model horizontal well is once gone up pressure-raising and is split tubing string, the specific aim of the well staged fracturing of improving the standard, and twin packer blocks one section stratum that needs pressure break respectively, adopts the different pressures job practices to construct the success rate height.This fracturing string has the backwash function, recoil sand function and unfreezing measure is arranged, job execution safety.One time working string is finished the multistage pressure break, saves activity duration and operation intensity, can lower operating cost, increases work efficiency.
Description of drawings
Fig. 1 is the utility model structural profile schematic diagram.
Among the figure, 1. oil pipe, 2. safety joint, 3. hydraulic anchor, 4. anti-flushing well packer, 5. ball-and-seat, 6. sandblaster is 7. forced deblocking packer, 8. centralizer, 9. guide head, 10. sleeve pipe.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Embodiment 1: consult Fig. 1.The utility model horizontal well is once gone up pressure-raising and is split tubing string, connection from bottom to top, the bottom be a guide head 9, the top of guide head 9 centralizer 8 that is threaded, centralizer 8 tops are threaded one and force deblocking packer 7, force be threaded 80 meters oil pipe of deblocking packer 7 tops.On this oil pipe of 80 meters, be connected with 3 ball-and-seats 5, the top of the oil pipe anti-flushing well packer 4 that is threaded, the top of anti-flushing well packer 4 hydraulic anchor 3 that is threaded, the safety joint 2 that is threaded of the top of hydraulic anchor 3, what the top of safety joint 2 to well head was threaded is that diameter is 62 millimeters a heavy wall tubing 1.Horizontal well is once gone up pressure-raising to be split tubing string and is lowered in the sleeve pipe 10.Anti-flushing well packer 4 and pressure deblocking packer 7 set by of the fracturing fluid pressure.Safety joint 2 is when tubing string is met card, can in time break away from, and prevents pernicious card tubing string accident.
Embodiment 2: consult Fig. 1.Substantially the same manner as Example 1.Difference is to split tubing string realization recoil sand technology in order to utilize this horizontal well once to go up pressure-raising, also is connected with a sandblaster 6 on the oil pipe between anti-flushing well packer 4 and the pressure deblocking packer 7.
Claims (2)
1. a horizontal well is once gone up pressure-raising and is split tubing string, comprise oil pipe (1), hydraulic anchor (3), packer (4), ball-and-seat (5) and centralizer, it is characterized in that: horizontal well is once gone up pressure-raising, and to split tubing string connection from bottom to top be guide head (9), guide head (9) connects forces deblocking packer (8), force deblocking packer (8), top is connected with the oil pipe of 20-100 rice, be connected with ball-and-seat (5) in the centre of this 20-100 rice bran oil pipe, the top of oil pipe connects anti-flushing well packer (4), the top of anti-flushing well packer (4) connects hydraulic anchor (3), the top attachment security joint (2) of hydraulic anchor (3), what the top of safety joint (2) to well head connected is heavy wall tubing (1).
2. horizontal well according to claim 1 is once gone up pressure-raising and is split tubing string, it is characterized in that: be connected with sandblaster (6) on the oil pipe between anti-flushing well packer (4) and the pressure deblocking packer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201694532U CN201057037Y (en) | 2007-06-27 | 2007-06-27 | One-time lifted fracturing string of horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201694532U CN201057037Y (en) | 2007-06-27 | 2007-06-27 | One-time lifted fracturing string of horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201057037Y true CN201057037Y (en) | 2008-05-07 |
Family
ID=39425878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201694532U Expired - Fee Related CN201057037Y (en) | 2007-06-27 | 2007-06-27 | One-time lifted fracturing string of horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201057037Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102884277A (en) * | 2010-03-01 | 2013-01-16 | 哈里伯顿能源服务公司 | Fracturing a stress-altered subterranean formation |
| CN103857877A (en) * | 2011-08-05 | 2014-06-11 | 普拉德研究及开发股份有限公司 | Method of fracturing multiple zones within a well |
| CN105178905A (en) * | 2015-09-11 | 2015-12-23 | 中国石油天然气股份有限公司 | A horizontal well bridge plug setting and channeling inspection integrated process string and method |
| US9915137B2 (en) | 2011-08-05 | 2018-03-13 | Schlumberger Technology Corporation | Method of fracturing multiple zones within a well using propellant pre-fracturing |
-
2007
- 2007-06-27 CN CNU2007201694532U patent/CN201057037Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102884277A (en) * | 2010-03-01 | 2013-01-16 | 哈里伯顿能源服务公司 | Fracturing a stress-altered subterranean formation |
| CN102884277B (en) * | 2010-03-01 | 2016-03-09 | 哈里伯顿能源服务公司 | The method of pressure break subsurface formations and the system for pressure break subsurface formations |
| CN103857877A (en) * | 2011-08-05 | 2014-06-11 | 普拉德研究及开发股份有限公司 | Method of fracturing multiple zones within a well |
| CN103857877B (en) * | 2011-08-05 | 2016-06-29 | 普拉德研究及开发股份有限公司 | Method of fracturing multiple zones in a well |
| US9915137B2 (en) | 2011-08-05 | 2018-03-13 | Schlumberger Technology Corporation | Method of fracturing multiple zones within a well using propellant pre-fracturing |
| CN105178905A (en) * | 2015-09-11 | 2015-12-23 | 中国石油天然气股份有限公司 | A horizontal well bridge plug setting and channeling inspection integrated process string and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080507 Termination date: 20120627 |