CN202832460U - Acidifying sand blower of horizontal well - Google Patents
Acidifying sand blower of horizontal well Download PDFInfo
- Publication number
- CN202832460U CN202832460U CN 201220392918 CN201220392918U CN202832460U CN 202832460 U CN202832460 U CN 202832460U CN 201220392918 CN201220392918 CN 201220392918 CN 201220392918 U CN201220392918 U CN 201220392918U CN 202832460 U CN202832460 U CN 202832460U
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- acidifying
- packer
- well
- oil pipe
- sandblaster
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- Expired - Fee Related
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Abstract
The utility model provides an acidifying sand blower of a horizontal well and relates to a downhole tool for the field of oilfield gas production. A sleeve (2) is sleeved with the external side of an oil pipe (1); a regulating valve (13) is mounted at the upper end of the oil pipe (1); a pressure gauge (12) is mounted on the external side of the oil pipe (1); a safety joint (3), an inverse well-flushing valve (4), a locator (5), a packer (6), a sand blower (7) with a sleeve, an acidifying packer (8) and a sand blower (9) without a sleeve are mounted on the oil pipe (1) at the lower end of the regulating valve (13) in sequence; the lower side of the sand blower (9) without the sleeve is connected with the acidifying packer (8); the lower side of the acidifying packer (8) is connected with a centralizer (10); and the lower side of the centralizer (10) is connected with a screw plug (11). The acidifying sand blower has the advantages that uniform acidifying can be achieved, inverse acid discharge function is obtained, the usage of the acid liquor is reduced, the acidifying effect is guaranteed and the structure is simple.
Description
Technical field
The utility model relates to the used downhole tool in gas production field, oil field, is specifically related to a kind of horizontal well acidifying sandblaster.
Background technology
At present in the correlative technology field of petroleum production engineering, because the horizontal well well bore exists inclination section and horizontal segment, the acidifying tubing string removes and stressing conditions and straight well differ greatly, and minute acidification technique of the formed routine of existing underground tool string is difficult to satisfy horizontal well in segments acidifying requirement.In addition, after the acidifying again kill-job be lowered to the well-completing process complicated, heavy of flow string, but also can cause to a certain degree injury to reservoir, have a strong impact on acidizing effect.
Summary of the invention
The purpose of this utility model provides a kind of horizontal well acidifying sandblaster, and it can reach homogeneous acidification, has anti-acid discharge function, reduces the consumption of acid solution, and has guaranteed the effect of acidifying, and is simple in structure.
In order to solve the existing problem of background technology, the utility model is by the following technical solutions: it comprises oil pipe 1, sleeve pipe 2, safety joint 3, inverse well-flushing valve 4, locator 5, packer 6, band cover sandblaster 7, well packer 8, be not with cover sandblaster 9, centralizer 10, plug 11, sleeve pipe 2 is socketed in the outside of oil pipe 1, the upper end of oil pipe 1 is equipped with control valve 13, its outside is equipped with pressure meter 12, on the oil pipe 1 of control valve 13 lower ends safety joint 3 is installed successively, inverse well-flushing valve 4, locator 5, packer 6, band cover sandblaster 7, well packer 8, be not with cover sandblaster 9, the downside with cover sandblaster 9 is not connected with well packer 8, the downside of well packer 8 is connected with centralizer 10, and the downside of centralizer 10 is connected with plug 11.
After the utility model is subscribed the position with oil pipe 1 carrying implement string through sleeve pipe, open control valve 13, the ground acid filling, utilize hydraulic setting well packer 8, be not with cover sandblaster 9 in unlatching subordinate, acidifying is carried out in the bottom, after acidifying is complete, by the well head pitching, opening 7 pairs of top acidifyings of top band cuff cover sandblaster, finish successively acidifying work.
The utility model has following beneficial effect: tubing string simple in structure, in the situation that fixed tubular column can be realized the subsection acidizing construction of a plurality of intervals, and can be directly as the gas well completion flow string after the acidifying, this tubing string also has the function of anti-acid discharge, reduce the acid solution consumption, realize best plugging removal effect.
The utility model can reach homogeneous acidification, has anti-acid discharge function, reduces the consumption of acid solution, and has guaranteed the effect of acidifying, and is simple in structure.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
The specific embodiment:
Referring to Fig. 1, this specific embodiment adopts following technical scheme: it comprises oil pipe 1, sleeve pipe 2, safety joint 3, inverse well-flushing valve 4, locator 5, packer 6, band cover sandblaster 7, well packer 8, be not with cover sandblaster 9, centralizer 10, plug 11, sleeve pipe 2 is socketed in the outside of oil pipe 1, the upper end of oil pipe 1 is equipped with control valve 13, its outside is equipped with pressure meter 12, on the oil pipe 1 of control valve 13 lower ends safety joint 3 is installed successively, inverse well-flushing valve 4, locator 5, packer 6, band cover sandblaster 7, well packer 8, be not with cover sandblaster 9, the downside with cover sandblaster 9 is not connected with well packer 8, the downside of well packer 8 is connected with centralizer 10, and the downside of centralizer 10 is connected with plug 11.
After this specific embodiment is subscribed the position with oil pipe 1 carrying implement string through sleeve pipe, open control valve 13, the ground acid filling, utilize hydraulic setting well packer 8, be not with cover sandblaster 9 in unlatching subordinate, acidifying is carried out in the bottom, after acidifying is complete, by the well head pitching, opening 7 pairs of top acidifyings of top band cuff cover sandblaster, finish successively acidifying work.
This specific embodiment has following beneficial effect: tubing string simple in structure, in the situation that fixed tubular column can be realized the subsection acidizing construction of a plurality of intervals, and can be directly as the gas well completion flow string after the acidifying, this tubing string also has the function of anti-acid discharge, reduce the acid solution consumption, realize best plugging removal effect.
This specific embodiment can reach homogeneous acidification, has anti-acid discharge function, reduces the consumption of acid solution, and has guaranteed the effect of acidifying, and is simple in structure.
Claims (1)
1. horizontal well acidifying sandblaster, it comprises oil pipe (1), sleeve pipe (2), safety joint (3), inverse well-flushing valve (4), locator (5), packer (6), band cover sandblaster (7), well packer (8), be not with cover sandblaster (9), centralizer (10), plug (11), sleeve pipe (2) is socketed in the outside of oil pipe (1), the upper end that it is characterized in that oil pipe (1) is equipped with control valve (13), its outside is equipped with pressure meter (12), on the oil pipe (1) of control valve (13) lower end safety joint (3) is installed successively, inverse well-flushing valve (4), locator (5), packer (6), band cover sandblaster (7), well packer (8), be not with cover sandblaster (9), the downside with cover sandblaster (9) is not connected with well packer (8), the downside of well packer (8) is connected with centralizer (10), and the downside of centralizer (10) is connected with plug (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392918 CN202832460U (en) | 2012-08-09 | 2012-08-09 | Acidifying sand blower of horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392918 CN202832460U (en) | 2012-08-09 | 2012-08-09 | Acidifying sand blower of horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832460U true CN202832460U (en) | 2013-03-27 |
Family
ID=47944192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220392918 Expired - Fee Related CN202832460U (en) | 2012-08-09 | 2012-08-09 | Acidifying sand blower of horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832460U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104278971A (en) * | 2013-07-09 | 2015-01-14 | 中国石油化工股份有限公司 | Horizontal well segmentation uniform negative pressure pickling method and negative pressure pickling pipe column |
| CN111852422A (en) * | 2020-07-23 | 2020-10-30 | 西安诚科石油工程技术服务有限公司 | Compact single-layer sectional treatment method and treatment device for high-pressure water under-injection well |
-
2012
- 2012-08-09 CN CN 201220392918 patent/CN202832460U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104278971A (en) * | 2013-07-09 | 2015-01-14 | 中国石油化工股份有限公司 | Horizontal well segmentation uniform negative pressure pickling method and negative pressure pickling pipe column |
| CN104278971B (en) * | 2013-07-09 | 2017-11-28 | 中国石油化工股份有限公司 | The uniform negative pressure acid washing method of horizontal well in segments and negative pressure pickling tubing string |
| CN111852422A (en) * | 2020-07-23 | 2020-10-30 | 西安诚科石油工程技术服务有限公司 | Compact single-layer sectional treatment method and treatment device for high-pressure water under-injection well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Daqing City Fu Hui finance trade limited liability company Assignor: Liu Yongxia Contract record no.: 2013230000572 Denomination of utility model: Acidifying sand blower of horizontal well Granted publication date: 20130327 License type: Exclusive License Record date: 20130423 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20140809 |
|
| EXPY | Termination of patent right or utility model |