CN104912534A - Automatic orientation hydraulic jetting fracturing tool for fracturing of horizontal well - Google Patents
Automatic orientation hydraulic jetting fracturing tool for fracturing of horizontal well Download PDFInfo
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- CN104912534A CN104912534A CN201510259327.5A CN201510259327A CN104912534A CN 104912534 A CN104912534 A CN 104912534A CN 201510259327 A CN201510259327 A CN 201510259327A CN 104912534 A CN104912534 A CN 104912534A
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Abstract
The invention provides an automatic orientation hydraulic jetting fracturing tool for fracturing of a horizontal well. According to the automatic orientation hydraulic jetting fracturing tool, the lower end of an upper joint is connected with a tool shell; an eccentric inner tube body is arranged on the left side of a boss inside the tool shell and is in threaded connection with an eccentric rotating spraying gun; a thrust bearing is arranged between the boss and the eccentric inner tube body; the eccentric rotating spraying gun is arranged on the right side of the boss inside the tool shell; radial bearings are arranged between the eccentric rotating spraying gun and the tool shell; holes are formed in the positions, close to the right ends, of the eccentric rotating spraying gun, and nozzles are arranged in the holes; and lower joints are placed at the right ends of the eccentric rotating spraying gun and are used for being connected with other facilities. The spraying gun with an eccentric weight freely rotates in the shell, the aim that the hydraulic spraying gun is in the horizontal direction all the time is achieved, and jetting orientation in the horizontal well can be achieved independently; sand blasting and flow jetting in the fixed direction are ensured, and the tool has the good control effects on rebuilding of a thin-film layer and fracturing transformation of double horizontal wells.
Description
Technical field
The present invention relates to the manufacturing technology application of oil and gas well drilling equipment, be specially a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well, belong to drilling technology field.
Background technology
The end of the nineties is hydraulic jetting fracturing technology grow up, and is also foreign applications technology more widely, is the product that hydraulic perforation technology and fracturing technique combine.This technology utilizes high speed abradant jet to form duct in the earth formation and then build the pressure to produce the advanced technology in crack.The advance of this technology is:
1) hydraulic perforation overcomes the compaction band of near wellbore zone pollution and conventional artillery perforation, and under jet action, top, duct, stratum forms microcrack;
2) jet flow pressurizing realizes fixed-point booster, reduces to produce multiple cracking and crack Steering, has waterpower packing effect simultaneously, is applicable to old filed and the not good Oil/gas Well of cementing quality;
3) the simple constructability of spraycan structure, double pump enters the fluid pressure that system can change rapidly shaft bottom, effectively solves the problems such as fracturing fluid excessive concentration, in advance sand plug.
Existing hydraulic jetting fracturing instrument mainly contains following shortcoming:
1) in the thin oil reservoir fracturing process of horizontal well, because oil reservoir is thinner, conventional spiral perforation easily causes crack to prolong above-below direction extension fast, causes crack to pass cap rock;
2) direction of nozzle water flow ejection of the prior art is all horizontal direction, and can not adjust, eyelet direction, biggest principal stress direction and crack initial crack initiation direction is all inconsistent, and fracturing effect is bad.
For solving above technical problem, the invention provides a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well, by bearing, the spray gun of eccentrically mounted weight is freely rotated in the enclosure, not by the azimuthal influence of shell, realize waterpower spray gun all the time in the horizontal direction, this instrument independently can realize spraying orientation in horizontal well, can ensure that blasting jet sprays to fixed-direction, and this direction is generally biggest principal stress direction.This technology can play good control action to oil sheet transformation, dual horizontal well fracturing reform.
Summary of the invention
For above-mentioned situation, for solving the defect of prior art, the object of the present invention just there is provided a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well, it comprises top connection, tool outer casing, thrust bearing, journal bearing, eccentric interior tube body, eccentric rotary spray gun, pressure tube, friction plate, nozzle, lower contact, it is characterized in that, described top connection upper end is connected with high pressure line; Described top connection lower end is connected with described tool outer casing; Described tool outer casing inside is provided with boss; The left side of described tool outer casing internal boss is provided with described eccentric interior tube body; Adopt between described eccentric interior tube body with described eccentric rotary spray gun and be threaded; In the middle of described boss and eccentric interior tube body, thrust bearing is set; Eccentric rotary spray gun is provided with on the right side of the boss of described tool outer casing inside; Between described eccentric rotary spray gun and described tool outer casing, journal bearing is set; Position near right part on described eccentric rotary spray gun is drilled with the hole with certain angle, and described nozzle is placed in this hole; Described lower contact is placed in the right part of described eccentric rotary spray gun; Described lower contact is for connecting other facilities.
Further, as preferably, described tool housing and eccentric rotary spray gun adopt the material of two kinds of different densities to make, and upper semi-circle is different from the density of material of lower half circle.
Further, as preferably, the angle angle of described nozzle and described tool outer casing is 0-45 degree, and the diameter of each nozzle is 2.5-12 millimeter.
Further, as preferably, described journal bearing is two.
Further, as preferably, described eccentric rotary spray gun is provided with the radial pressure tube arranged, described pressure tube is connected with friction plate, and described friction plate is arranged between described interior tool housing surface and described eccentric rotary lance outer surface.
Beneficial effect of the present invention:
A kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well provided by the invention, by bearing, the spray gun of eccentrically mounted weight is freely rotated in the enclosure, not by the azimuthal influence of shell, realize waterpower spray gun all the time in the horizontal direction, this instrument independently can realize spraying orientation in horizontal well, can ensure that blasting jet sprays to fixed-direction, good control action is played to oil sheet transformation, dual horizontal well fracturing reform.
Accompanying drawing explanation
Fig. 1 is the structure chart of a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well provided by the invention;
Wherein, 1, top connection, 2, tool outer casing, 3, eccentric interior tube body, 4, thrust bearing, 5, eccentric rotary spray gun, 6, journal bearing, 7, nozzle, 8, lower contact, 9, boss, 10, pressure tube, 11, friction plate.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, the invention provides a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well, it comprises top connection 1, tool outer casing 2, thrust bearing 4, journal bearing 6, eccentric interior tube body 3, eccentric rotary spray gun 5, pressure tube 10, friction plate 11, nozzle 7, lower contact 8, and top connection 1 upper end is connected with high pressure line; Described top connection lower end is connected with described tool outer casing 2; Tool outer casing inside is provided with boss 9; The left side of described tool outer casing internal boss 9 is provided with described eccentric interior tube body 3; Eccentric interior tube body 3 is threaded with adopting between described eccentric rotary spray gun 5; In the middle of described boss 9 and eccentric interior tube body 3, thrust bearing 4 is set; Eccentric rotary spray gun 5 is provided with on the right side of the boss of tool outer casing inside; Journal bearing 6 is set between eccentric rotary spray gun 5 and tool outer casing 2; Position near right part on eccentric rotary spray gun 5 is drilled with the hole with certain angle, and nozzle 7 is placed in this hole; Described lower contact 8 is placed in the right part of described eccentric rotary spray gun 5; Lower contact 8 is for connecting other facilities.
In the present embodiment, tool housing 2 and eccentric rotary spray gun 5 adopt the material of two kinds of different densities to make, upper semi-circle is different from the density of material of lower half circle, and the angle angle of described nozzle and described tool outer casing is 0-45 degree, and the diameter of each nozzle is 2.5-12 millimeter.Wherein, journal bearing 6 is two.Eccentric rotary spray gun 5 is provided with the radial pressure tube 10 arranged, described pressure tube 10 is connected with friction plate 11, and described friction plate 11 is arranged between described tool outer casing 2 inner surface and described eccentric rotary spray gun 5 external surface.
The present invention independently can realize spraying orientation in horizontal well, can ensure that blasting jet sprays to fixed-direction, good control action is played to oil sheet transformation, dual horizontal well fracturing reform, it makes the spray gun of eccentrically mounted weight freely rotate in the enclosure by bearing, not by the azimuthal influence of shell, achieve waterpower spray gun all the time in the horizontal direction.
Claims (7)
1. the automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well, it comprises top connection, tool outer casing, thrust bearing, journal bearing, eccentric interior tube body, eccentric rotary spray gun, pressure tube, friction plate, nozzle, lower contact, it is characterized in that, described top connection upper end is connected with high pressure line; Described top connection lower end is connected with described tool outer casing; Described tool outer casing inside is provided with boss; The left side of described tool outer casing internal boss is provided with described eccentric interior tube body; Adopt between described eccentric interior tube body with described eccentric rotary spray gun and be threaded; In the middle of described boss and eccentric interior tube body, thrust bearing is set; Eccentric rotary spray gun is provided with on the right side of the boss of described tool outer casing inside.
2. a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well according to claim 1, is characterized in that arranging journal bearing between described eccentric rotary spray gun and described tool outer casing; Described eccentric rotary spray gun is drilled with near the position of right part and has hole, described nozzle is placed in this hole; Described lower contact is placed in the right part of described eccentric rotary spray gun; Described lower contact is for connecting other facilities.
3. a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well according to claim 1, it is characterized in that, described tool housing and eccentric rotary spray gun adopt the material of two kinds of different densities to make, and upper semi-circle is different from the density of material of lower half circle.
4. a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well according to claim 1, it is characterized in that, the angle angle of described nozzle and described tool outer casing is 0-45 degree, and the diameter of each nozzle is 2.5-12 millimeter.
5. a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well according to claim 1, it is characterized in that, described journal bearing is two.
6. a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well according to claim 1, it is characterized in that, described eccentric rotary spray gun is provided with the radial pressure tube arranged, described pressure tube is connected with friction plate, and described friction plate is arranged between described interior tool housing surface and described eccentric rotary lance outer surface.
7. a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well according to claim 6, is characterized in that, the recline side of tool outer casing of described friction plate adopts zigzag rough surface, to increase the frictional force of friction plate and tool outer casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510259327.5A CN104912534A (en) | 2015-05-20 | 2015-05-20 | Automatic orientation hydraulic jetting fracturing tool for fracturing of horizontal well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510259327.5A CN104912534A (en) | 2015-05-20 | 2015-05-20 | Automatic orientation hydraulic jetting fracturing tool for fracturing of horizontal well |
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| CN104912534A true CN104912534A (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510259327.5A Pending CN104912534A (en) | 2015-05-20 | 2015-05-20 | Automatic orientation hydraulic jetting fracturing tool for fracturing of horizontal well |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257270A (en) * | 2015-10-23 | 2016-01-20 | 西安石油大学 | Angle-adjustable oriented perforation and fracturing integrated tubular column for horizontal well |
| CN106285606A (en) * | 2016-10-27 | 2017-01-04 | 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 | A kind of rotatable nozzle-type double bunch hydraulic jetting fracturing tubing string and fracturing process |
| CN107060715A (en) * | 2017-05-19 | 2017-08-18 | 中国石油集团川庆钻探工程有限公司 | Downhole directional hydraulic jetting tool for fracture acidizing reconstruction |
| CN107630691A (en) * | 2016-07-18 | 2018-01-26 | 中国石油天然气股份有限公司 | horizontal well fracturing device, horizontal well fracturing system and operation method thereof |
| CN108547601A (en) * | 2018-06-05 | 2018-09-18 | 杰瑞能源服务有限公司 | A kind of horizontal well hydraulic orientation spray gun |
| CN110439526A (en) * | 2019-09-17 | 2019-11-12 | 盐城他山石液压机械有限公司 | A kind of self orientation hydraulic blast |
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| US4825963A (en) * | 1988-07-11 | 1989-05-02 | Ruhle James L | High-pressure waterjet/abrasive particle-jet coring method and apparatus |
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| CN201031674Y (en) * | 2007-04-20 | 2008-03-05 | 蓬莱市茂企石油机械有限公司 | Horizontal well externally oriented perforating gun orientation link |
| CN201420541Y (en) * | 2009-06-04 | 2010-03-10 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Horizontal well located sand spraying and perforating device |
| CN203856459U (en) * | 2013-07-26 | 2014-10-01 | 刘洋 | Universal rotating orientator |
| CN204804806U (en) * | 2015-05-20 | 2015-11-25 | 徐梓辰 | A automatic directional hydraulic jet fracturing instrument for horizontal well fracturing |
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2015
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4825963A (en) * | 1988-07-11 | 1989-05-02 | Ruhle James L | High-pressure waterjet/abrasive particle-jet coring method and apparatus |
| US5944123A (en) * | 1995-08-24 | 1999-08-31 | Schlumberger Technology Corporation | Hydraulic jetting system |
| CN201031674Y (en) * | 2007-04-20 | 2008-03-05 | 蓬莱市茂企石油机械有限公司 | Horizontal well externally oriented perforating gun orientation link |
| CN201420541Y (en) * | 2009-06-04 | 2010-03-10 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Horizontal well located sand spraying and perforating device |
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| CN204804806U (en) * | 2015-05-20 | 2015-11-25 | 徐梓辰 | A automatic directional hydraulic jet fracturing instrument for horizontal well fracturing |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257270A (en) * | 2015-10-23 | 2016-01-20 | 西安石油大学 | Angle-adjustable oriented perforation and fracturing integrated tubular column for horizontal well |
| CN107630691A (en) * | 2016-07-18 | 2018-01-26 | 中国石油天然气股份有限公司 | horizontal well fracturing device, horizontal well fracturing system and operation method thereof |
| CN106285606A (en) * | 2016-10-27 | 2017-01-04 | 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 | A kind of rotatable nozzle-type double bunch hydraulic jetting fracturing tubing string and fracturing process |
| CN106285606B (en) * | 2016-10-27 | 2019-03-15 | 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 | A kind of double cluster hydraulic jetting fracturing tubing strings of rotatable nozzle-type and fracturing process |
| CN107060715A (en) * | 2017-05-19 | 2017-08-18 | 中国石油集团川庆钻探工程有限公司 | Downhole directional hydraulic jetting tool for fracture acidizing reconstruction |
| CN108547601A (en) * | 2018-06-05 | 2018-09-18 | 杰瑞能源服务有限公司 | A kind of horizontal well hydraulic orientation spray gun |
| CN108547601B (en) * | 2018-06-05 | 2023-08-11 | 杰瑞能源服务有限公司 | Hydraulic directional spray gun for horizontal well |
| CN110439526A (en) * | 2019-09-17 | 2019-11-12 | 盐城他山石液压机械有限公司 | A kind of self orientation hydraulic blast |
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Application publication date: 20150916 |
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