CN203626787U - Pipe string capable of realizing perforating and fracturing integration through hydraulic jetting fracturing technique and double-packer single-chuck fracturing technique - Google Patents
Pipe string capable of realizing perforating and fracturing integration through hydraulic jetting fracturing technique and double-packer single-chuck fracturing technique Download PDFInfo
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- CN203626787U CN203626787U CN201320703981.7U CN201320703981U CN203626787U CN 203626787 U CN203626787 U CN 203626787U CN 201320703981 U CN201320703981 U CN 201320703981U CN 203626787 U CN203626787 U CN 203626787U
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Abstract
The utility model discloses a pipe string capable of realizing perforating and fracturing integration through a hydraulic jetting fracturing technique and a double-packer single-chuck fracturing technique, and the pipe string is designed to achieve dragging fracturing reformation of multiple layers of a plumb shaft or multiple sections of a horizontal well of an oil and gas field. According to the pipe string, a safety release tool, an upper packer, an upper hydraulic ejector, a lower hydraulic ejector, a lower packer, a sliding bushing seat, a check valve, a screen pipe and a guiding pipe plug are connected sequentially from the top down through an oil pipe. The pipe string combines functions of the hydraulic jetting fracturing technique and the double-packer single-chuck fracturing technique, perforating and fracturing integration operation of one single pipe string can be realized, fracturing of multiple layers of the plumb shaft or multiple sections of the horizontal well can be achieved by dragging one single pipe string, and the pipe string is simple in structure, convenient to operate and high in efficiency and safety. The whole pipe string can have functions of the double-packer single-chuck fracturing technology by means of the controllable packers, the controllable hydraulic ejectors can reduce nozzle throttling effectively, and basis is provided for greater increase of oil pipe displacement space in follow-up fracturing process. When the pipe string meets resistance and cannot make a pull, the safety release tool can guarantee safe pull of the pipe string.
Description
Technical field
The utility model relates to the two envelope of a kind of jetting single deck tape-recorder perforating and fracturing integral process tubing string, belongs to oil-gas field fracturing technical field.
Background technology
At present, domestic horizontal well in segments reforming technology has hydraulic jetting fracturing and packer staged fracturing etc.Hydraulic jet perforation staged fracturing technique has that construction is simple, efficiency is high and can reduce the advantages such as bottom-hole treating pressure, but this technique is high to the broken pressure on stratum, to well head supporting and casing grade require corresponding higher; Packer staged fracturing technique and casing grade supporting to well head require relatively low, but its working procedure relative complex, need oil tube transmission perforation, while being lowered to special pipeline scraper, need process perforated interval burr, and have perforation imperfection and the do not turn up the soil phenomenon of layer of the pressure that causes.
Summary of the invention
The purpose of this utility model is to provide the two envelope of a kind of jetting single deck tape-recorder perforating and fracturing integral process tubing string, the fracturing reform dragging to realize oil gas field straight well multilayer or horizontal well multistage.
Concrete technology contents of the present utility model is as follows:
The oil pipe lower end of this tubing string connects safety and gives up, the safety lower end of giving up connects the upper packer of controllable type by oil pipe, upper packer lower end connects the upper hydraulic ejector of controllable type, upper hydraulic ejector lower end connects lower hydraulic ejector, lower hydraulic ejector lower end connects lower packet by tubing nipple, and lower packet lower end connects sleeve base, and sleeve base lower end connects ball-and-seat, ball-and-seat lower end connects eye pipe, and eye pipe lower end connects guiding plug.
The function that this tubing string combines hydro-jet fracturing technology and two envelope single deck tape-recorder fracturing technologies, can realize the institutional operation of one-trip string perforation, pressure break, can drag the pressure break that realizes straight well multilayer or horizontal well multistage by single time tubing string, tubular column structure is simple, easy to operate, efficiency is high, safe.The packer of controllable type can make whole tubing string possess the functions of two envelope single deck tape-recorder fracturing technologies, and the hydraulic ejector of controllable type can effectively reduce the throttling action of nozzle, promotes oil pipe discharge capacity space basis is provided for larger in follow-up pressing crack construction.When tubing string is hampered cannot pull out of hole time, safety is given up and can be guaranteed that tubing string trips out safely.
Accompanying drawing explanation
Fig. 1 is the two envelope of jetting single deck tape-recorder perforating and fracturing integral process tubing string schematic diagram.
The specific embodiment
Embodiment:
With reference to Fig. 1, embodiment of the present utility model is further illustrated:
This tubing string comprises that oil pipe 1, safety give up 2, upper packer 3, upper hydraulic ejector 4, lower hydraulic ejector 5, lower packet 6, sleeve base 7, ball-and-seat 8, eye pipe 9 and guiding plug 10:
Oil pipe 1 lower end connects safety and gives up 2, safety 2 lower ends of giving up connect the upper packer 3 of controllable type by oil pipe 1, upper packer 3 lower ends connect the upper hydraulic ejector 4 of controllable type, upper hydraulic ejector 4 lower ends connect lower hydraulic ejector 5, lower hydraulic ejector 5 lower ends connect lower packet 6 by one meter of tubing nipple, and lower packet 6 lower ends connect sleeve base 7, and sleeve base 7 lower ends connect ball-and-seat 8, ball-and-seat 8 lower ends connect eye pipe 9, and eye pipe 9 lower ends connect guiding plug 10.
The course of work of this tubing string is as follows:
Take the horizontal well of three sections of a bite oil field design improvements as example:
1, as required and design interval, be lowered to this tubing string to horizontal well, according to design, by the middle part of lower hydraulic ejector 5 first aim at need transformation first paragraph position;
2, carry out the perforating job of first paragraph: when the construction of first paragraph perforation, do not start upper packer 3 and the upper hydraulic ejector 4 of controllable type, upper packer 3 does not set, inside and outside upper hydraulic ejector 4, be not communicated with, at this moment only have lower hydraulic ejector 5 and lower packet 6 normally to work, complete the first paragraph perforating job that needs transformation by working design;
3, complete after first paragraph perforating job, termination of pumping, deblocking lower packet 6, upper lifting pipe post, to the second segment that needs transformation, makes the middle part of lower hydraulic ejector 5 aim at second segment, carries out the perforating job of second segment by design;
4, repeating step 3, completes the perforating job of residue interval;
5, after completing all interval perforating jobs of construction well, transfer again this tubing string, the middle part of lower hydraulic ejector 5 is aimed to this construction well and has been penetrated the first interval of via hole, then drop into the steel ball of corresponding size from well head, starting upper packer 3 sets, and in succession start upper hydraulic ejector 4, lower hydraulic ejector 5 and lower packet 6, last steel ball falls in sleeve base 7, make whole tubing string change two envelope single deck tape-recorder process pipe strings into by jetting process pipe string, complete the pressing crack construction of the first interval by working design;
6, complete after first paragraph pressing crack construction, termination of pumping, deblocking upper packer 3 and lower packet 6, upper lifting pipe post, to the second segment that needs transformation, is aimed at second segment by the middle part of lower hydraulic ejector 5, carries out the pressing crack construction of second segment by design;
7, repeating step 6, can complete the pressing crack construction that remains interval.
The packer of this tubing string controllable type does not start and sets in the time that perforation is constructed, and after whole construction section perforating jobs of well to be onstructed complete, then pitching starts and set, and makes whole tubing string become two envelope single deck tape-recorder fracturing technology tubing strings.Controllable type hydraulic ejector is not communicated with inside and outside in the time that perforation is constructed, after whole construction section perforating jobs of well to be onstructed complete, pitching starts again, make the inside and outside connection of hydraulic ejector, conventional hydraulic ejector is below equivalent to a wide-aperture sandblaster together, thereby can effectively reduce the nozzle throttling action while only using a hydraulic ejector, set up basis for oil pipe discharge capacity in follow-up pressing crack construction has larger room for promotion.
Claims (1)
1. the two envelope of a jetting single deck tape-recorder perforating and fracturing integral process tubing string, is characterized in that:
Oil pipe (1) lower end of this tubing string connects give up safely (2), safety is given up (2) lower end by the upper packer (3) of oil pipe (1) connection controllable type, upper packer (3) lower end connects the upper hydraulic ejector (4) of controllable type, upper hydraulic ejector (4) lower end connects lower hydraulic ejector (5), lower hydraulic ejector (5) lower end connects lower packet (6) by tubing nipple, lower packet (6) lower end connects sleeve base (7), sleeve base (7) lower end connects ball-and-seat (8), ball-and-seat (8) lower end connects eye pipe (9), eye pipe (9) lower end connects guiding plug (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320703981.7U CN203626787U (en) | 2013-11-08 | 2013-11-08 | Pipe string capable of realizing perforating and fracturing integration through hydraulic jetting fracturing technique and double-packer single-chuck fracturing technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320703981.7U CN203626787U (en) | 2013-11-08 | 2013-11-08 | Pipe string capable of realizing perforating and fracturing integration through hydraulic jetting fracturing technique and double-packer single-chuck fracturing technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203626787U true CN203626787U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320703981.7U Expired - Fee Related CN203626787U (en) | 2013-11-08 | 2013-11-08 | Pipe string capable of realizing perforating and fracturing integration through hydraulic jetting fracturing technique and double-packer single-chuck fracturing technique |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632167A (en) * | 2013-11-08 | 2015-05-20 | 中国石油天然气股份有限公司 | Hydraulic jet double-seal single-blockage perforation and fracturing integrated process pipe string |
| CN110671058A (en) * | 2019-09-10 | 2020-01-10 | 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 | Double-sealing single-clamping process pipe column of old horizontal well and method for realizing large-discharge transformation |
| CN113107418A (en) * | 2021-03-25 | 2021-07-13 | 中煤科工集团西安研究院有限公司 | Sectional pressure-maintaining grouting device and method for horizontal drilling of coal seam floor aquifer |
| CN113417636A (en) * | 2021-05-31 | 2021-09-21 | 中煤科工集团重庆研究院有限公司 | Accurate hydraulic fracturing process for comb-shaped layer-through directional long-drilling branch hole coal seam section |
-
2013
- 2013-11-08 CN CN201320703981.7U patent/CN203626787U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632167A (en) * | 2013-11-08 | 2015-05-20 | 中国石油天然气股份有限公司 | Hydraulic jet double-seal single-blockage perforation and fracturing integrated process pipe string |
| CN110671058A (en) * | 2019-09-10 | 2020-01-10 | 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 | Double-sealing single-clamping process pipe column of old horizontal well and method for realizing large-discharge transformation |
| CN113107418A (en) * | 2021-03-25 | 2021-07-13 | 中煤科工集团西安研究院有限公司 | Sectional pressure-maintaining grouting device and method for horizontal drilling of coal seam floor aquifer |
| CN113417636A (en) * | 2021-05-31 | 2021-09-21 | 中煤科工集团重庆研究院有限公司 | Accurate hydraulic fracturing process for comb-shaped layer-through directional long-drilling branch hole coal seam section |
| CN113417636B (en) * | 2021-05-31 | 2022-07-15 | 中煤科工集团重庆研究院有限公司 | Comb-shaped through-layer directional long-drilling-hole branch-hole coal seam section accurate hydraulic fracturing process |
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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: 20140604 Termination date: 20211108 |
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| CF01 | Termination of patent right due to non-payment of annual fee |