CN103742100A - Packer applicable to environment of 120 DEG C and 70 MPa - Google Patents
Packer applicable to environment of 120 DEG C and 70 MPa Download PDFInfo
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- CN103742100A CN103742100A CN201310749934.0A CN201310749934A CN103742100A CN 103742100 A CN103742100 A CN 103742100A CN 201310749934 A CN201310749934 A CN 201310749934A CN 103742100 A CN103742100 A CN 103742100A
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- sliding sleeve
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Abstract
The invention relates to a packer applicable to an environment of 120 DEG C and 70 MPa. The packer applicable to the environment of 120 DEG C and 70 MPa mainly solves the problem that existing packers are not applicable to high-temperature and high-pressure environments and is characterized in that the inner side of the lower portion of an upper joint (1) is connected with a pressure transmitting main body (4), and the inside of the pressure transmitting main body (4) is connected with a slide bushing (3); the inside of the slide bushing (3) is provided with a diameter-variable slide bushing (2), the side wall of the slide bushing (3) is provided with slide bushing sand outlet holes (14), and the side wall of the diameter-variable slide bushing (2) is provided with diameter-variable slide bushing sand outlet holes (14); the outside of the lower end of the pressure transmitting main body (4) is connected with an upper rubber barrel seat (5), the lower portion of the upper rubber barrel seat is connected with a rubber barrel (8), the lower portion of the rubber barrel (8) is connected with a lower rubber barrel seat (9), and the lower portion of the lower rubber barrel seat (9) is connected with a lower joint. The packer applicable to an environment of 120 DEG C and 70 MPa is applicable to underground high-temperature and high-pressure environments up to 120 DEG C and 70 MPa, high in sealing performance and reliable in packing.
Description
Technical field
The present invention relates to field, oil field, be a kind ofly specifically applicable to 120 ℃, the packer of 70MPa environment.
Background technology
Packer is requisite downhole tool when oil field compression fracture, and the most temperature applicatory of current packer is 100 ℃ of left and right, is not suitable for high temperature well, meanwhile, the pressure can bear is also limited, when the environment of down-hole HTHP, sealing is poor, and it is unreliable to cause setting.
Summary of the invention
In order to overcome existing packer, can not adapt to the problem of the environment of HTHP, the invention provides a kind of be applicable to 120 ℃, the packer of 70MPa environment, this packer can adapt to that down-hole is the highest 120 ℃, the high temperature and high pressure environment of 70MPa, and good airproof performance sets reliable.
Technical scheme of the present invention is: be a kind ofly applicable to 120 ℃, the packer of 70MPa environment, comprise top connection lower contact, described top connection lower inside is connected with pilot main body, pilot body interior is connected with sliding sleeve, sliding sleeve inside is equipped with reducing type sliding sleeve, and on sliding sleeve sidewall, have sliding sleeve clearance hole, on reducing type sliding sleeve sidewall, have reducing type sliding sleeve clearance hole; Pilot main body lower end is externally connected to glue tube base, and upper glue tube base bottom is connected with packing element, and packing element bottom connects lower rubber cylinder seat, and lower rubber cylinder seat bottom is connected with lower contact.
The present invention has following beneficial effect: owing to taking such scheme, this packer is interior owing to being provided with reducing type sliding sleeve, when throwing in packer after reducing type derailing switch, reducing type sliding sleeve down sliding, clearance hole on reducing type sliding sleeve overlaps with the clearance hole on sliding sleeve, opens clearance hole, realizes major path, can reduce restriction loss, improve operational discharge capacity.This packer sealing is good, sets reliably, and deblocking is convenient, can adapt to the environment of down-hole HTHP.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
1-top connection in figure, 2-reducing type sliding sleeve, 3-sliding sleeve, 4-pilot main body, the upper glue tube base of 5-, 6-spacer ring, 7-central tube, 8-packing element, 9-lower rubber cylinder seat, 10-lower contact, 11-spacing ring, 12-baffle ring, 13-reducing sliding bush clearance hole, 14-sliding sleeve clearance hole.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, a kind ofly be applicable to 120 ℃, the packer of 70MPa environment, comprise top connection 1, lower contact 10, described top connection 1 lower inside is connected with pilot main body 4, pilot main body 4 is internally connected with sliding sleeve 3, and sliding sleeve 3 inside are equipped with reducing type sliding sleeve 2, and has sliding sleeve clearance hole 14 on sliding sleeve 3 sidewalls, in the pilot main body 12 of sliding sleeve clearance hole 14 correspondences, have groove, sliding sleeve 11 bottom inside are connected with central tube 7.On reducing type sliding sleeve 2 sidewalls, have reducing type sliding sleeve clearance hole 14, reducing type sliding sleeve 2 upper inner have inclined-plane, and oblique basifacial internal diameter is less than the internal diameter on top, inclined-plane.Pilot main body 4 lower ends are externally connected to glue tube base 5, between upper glue tube base 5 and sliding sleeve 11, there is spacer ring 14, upper glue tube base 5 bottoms are connected with packing element 8, packing element 8 bottoms connect lower rubber cylinder seat 9, lower rubber cylinder seat 9 lower inside are connected with lower contact 10, and lower rubber cylinder seat 9 bottoms are connected with spacing ring 11, spacing ring 11 bottoms are connected with baffle ring 12.
This packer is in when work, jointly forms fracturing string with the instrument such as hydraulic anchor, sandblaster, and when carrying out multiple fracturing construction, tubing string is the first floor of construction bottom.After first floor pressure break finishes, in packer, throw in reducing type derailing switch, the inclined-plane of reducing type derailing switch is sitting on reducing type sliding sleeve 2, after pressurization, reducing type sliding sleeve 2 drives sliding sleeve 3 descending, and the clearance hole on the clearance hole in pilot main body 4 and sliding sleeve 3 aligns, and sand export is opened; Continue pressurization, the stifled disengagement of the end on reducing type derailing switch, shutoff first floor pressure break passage; Meanwhile, second layer pressure break passage is opened, and gets final product pressing crack construction.The rest may be inferred, can realize sitting and press multiple fracturing.This packer sealing is good, sets reliably, and deblocking is convenient, can adapt to the environment of down-hole HTHP.
Claims (1)
1. one kind is applicable to 120 ℃, the packer of 70MPa environment, comprise top connection (1), lower contact (10), it is characterized in that: described top connection (1) lower inside is connected with pilot main body (4), pilot main body (4) is internally connected with sliding sleeve (3), sliding sleeve (3) inside is equipped with reducing type sliding sleeve (2), and on sliding sleeve (3) sidewall, have sliding sleeve clearance hole (14), on reducing type sliding sleeve (2) sidewall, have reducing type sliding sleeve clearance hole (14); Pilot main body (4) lower end is externally connected to glue tube base (5), and upper glue tube base (5) bottom is connected with packing element (8), and packing element (8) bottom connects lower rubber cylinder seat (9), and lower rubber cylinder seat (9) bottom is connected with lower contact (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310749934.0A CN103742100B (en) | 2013-12-31 | 2013-12-31 | Packer suitable in 120 DEG C, 70MPa environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310749934.0A CN103742100B (en) | 2013-12-31 | 2013-12-31 | Packer suitable in 120 DEG C, 70MPa environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103742100A true CN103742100A (en) | 2014-04-23 |
| CN103742100B CN103742100B (en) | 2016-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310749934.0A Active CN103742100B (en) | 2013-12-31 | 2013-12-31 | Packer suitable in 120 DEG C, 70MPa environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103742100B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2100480U (en) * | 1991-08-16 | 1992-04-01 | 大庆石油管理局采油工艺研究所 | Pressure-guiding sand-blast packer for pressing crack |
| US6216785B1 (en) * | 1998-03-26 | 2001-04-17 | Schlumberger Technology Corporation | System for installation of well stimulating apparatus downhole utilizing a service tool string |
| CN201428666Y (en) * | 2009-07-08 | 2010-03-24 | 中国石油集团西部钻探工程有限公司克拉玛依钻井工艺研究院 | Multi-stage hydraulic cylinder type packer |
| US20110198096A1 (en) * | 2010-02-15 | 2011-08-18 | Tejas Research And Engineering, Lp | Unlimited Downhole Fracture Zone System |
| CN203050611U (en) * | 2012-11-26 | 2013-07-10 | 东营市兆鑫工贸有限责任公司 | Open-type cement injection apparatus |
-
2013
- 2013-12-31 CN CN201310749934.0A patent/CN103742100B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2100480U (en) * | 1991-08-16 | 1992-04-01 | 大庆石油管理局采油工艺研究所 | Pressure-guiding sand-blast packer for pressing crack |
| US6216785B1 (en) * | 1998-03-26 | 2001-04-17 | Schlumberger Technology Corporation | System for installation of well stimulating apparatus downhole utilizing a service tool string |
| CN201428666Y (en) * | 2009-07-08 | 2010-03-24 | 中国石油集团西部钻探工程有限公司克拉玛依钻井工艺研究院 | Multi-stage hydraulic cylinder type packer |
| US20110198096A1 (en) * | 2010-02-15 | 2011-08-18 | Tejas Research And Engineering, Lp | Unlimited Downhole Fracture Zone System |
| CN203050611U (en) * | 2012-11-26 | 2013-07-10 | 东营市兆鑫工贸有限责任公司 | Open-type cement injection apparatus |
Non-Patent Citations (4)
| Title |
|---|
| 张波等: "《水平井多级水力喷射压裂封隔器工具》", 《石油机械》 * |
| 曾雨辰等: "《大牛地气田双封分层压裂投产管柱研究应用》", 《西南石油大学学报》 * |
| 青海石油管理局生产技术处: "《在封隔器和压裂接头上采用锁钉滑套》", 《石油钻采机械情报》 * |
| 韩永亮等: "《水平井分段压裂滑套的研制与应用》", 《石油机械》 * |
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| Publication number | Publication date |
|---|---|
| CN103742100B (en) | 2016-07-06 |
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