CN103993868A - Ultra-short radius horizontal well hydraulic fracturing tool - Google Patents
Ultra-short radius horizontal well hydraulic fracturing tool Download PDFInfo
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- CN103993868A CN103993868A CN201410264758.6A CN201410264758A CN103993868A CN 103993868 A CN103993868 A CN 103993868A CN 201410264758 A CN201410264758 A CN 201410264758A CN 103993868 A CN103993868 A CN 103993868A
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- horizontal well
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- guide pipe
- hydraulic fracturing
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Abstract
The invention relates to an ultra-short radius horizontal well hydraulic fracturing tool. The ultra-short radius horizontal well hydraulic fracturing tool comprises an oil pipe, an adapter and a guide pipe. The oil pipe is connected with the guide pipe through the adapter. A plurality of kerfs are formed in one side of the guide pipe. A high-pressure pipe is arranged inside the guide pipe in a sleeved mode. A spray head is arranged at the top end of the high-pressure pipe. Nozzles are arranged on the two sides of the spray head. The high-pressure pipe is divided into a plurality of sections, wherein every two adjacent sections of the high-pressure pipe are connected through a connector. Each connector comprises a connector body, standby caps and expansion rings. The ends of every two adjacent sections of the high-pressure pipe enter the corresponding connector body, the corresponding standby caps are installed at the two ends of each connector body, and the joints between each connector body and the corresponding standby caps are provided with the corresponding expansion rings. The ultra-short radius horizontal well hydraulic fracturing tool can make a turn in an ultra-short radius mode, realize hydraulic fracturing, completely prevent leakage, and realize hydraulic fracturing on a horizontal well bore after ultra-short radius horizontal drilling.
Description
Technical field
The invention belongs to oilfield machinery field, relate to a kind of super short radial horizontal well fracturing instrument.
Background technology
In recent years, along with the continuous upgrading of oil production engineering, measures technology is also development in pluralism, and for the residue oil reservoir transformation of individual well, technology category is a lot.The directed horizontal drilling technique of the ultra-short radius that adopt at present more, this technique is at former casing inward opening window deflecting, 3.2 meters of radius of curvature have got final product turning in 90 °, utilizing flexible drill string along continuous straight runs to creep into more than 50 meters, is the old well residue of exploitation oil reservoir, the very effective technological measure of near wellbore zone de-plugging; Conventional levels well adopts waterpower staged fracturing more, but the horizontal hole diameter after ultra-short radius horizontal drilling has limitation, just need to invent and a kind ofly can, at 3.2 meters of hydraulic jetting fracturing instruments of 90 ° of turning, realize the double effects that in layer, a ultra-short radius horizontal drilling, two kinds of techniques of hydraulic jetting fracturing are transformed simultaneously.
Summary of the invention
The object of this invention is to provide a kind of super short radial horizontal well fracturing instrument, the horizontal hole after solution ultra-short radius horizontal drilling cannot be realized the problem of fracturing.
The present invention is achieved through the following technical solutions: super short radial horizontal well fracturing instrument, comprise oil pipe, variable buckle and guide pipe, and oil pipe is connected with guide pipe by variable buckle, and guide pipe one side has multiple slots; In described guide pipe, be set with high-voltage tube, there is shower nozzle on high-voltage tube top, and there is nozzle shower nozzle both sides, and wherein, high-voltage tube is more piece, and two adjacent joint high-voltage tubes connect by linkage; Linkage comprises connector body, standby cap and expansion loop, and two adjacent joint high-voltage tube ends enter in connector body, and standby cap is equipped with at connector body two ends, and the joining place of standby cap and connector body is provided with expansion loop.
Further, described high-voltage tube is provided with annular groove, and expansion loop is positioned at annular groove.
Further, between described standby cap and connector body, be also provided with safetied pin.
Further, sealing ring is also housed between described high-voltage tube and connector body.
Adopt the good effect of technique scheme: the present invention both can realize ultra-short radius and turn round, can also realize fracturing, can thoroughly prevent seepage, realize the oil formation improvement effect of individual well duplex skill, realize directional drilling, directional fracturing, oil field residue oil reservoir is fully taped the latent power, and another of having filled up domestic and international oil production engineering is blank, plays great impetus to the development of oil production engineering.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the enlarged drawing of linkage in Fig. 1;
Fig. 3 is the structural representation of high-voltage tube.
In figure, 1 oil pipe, 2 variable buckles, 3 guide pipes, 4 high-voltage tubes, 5 shower nozzles, 6 nozzles, 7 connector bodies, 8 for cap, 9 expansion loops, 10 annular grooves, 11 fixing pins, 12 sealing rings.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme of the present invention is described further, but should not be construed as limitation of the present invention:
Fig. 1 is structural representation of the present invention, Fig. 2 is the enlarged drawing of linkage in Fig. 1, as shown in the figure, super short radial horizontal well fracturing instrument, comprise oil pipe 1, variable buckle 2 and guide pipe 3, oil pipe 1 is connected with guide pipe 3 by variable buckle 2, and guide pipe 3 one sides have multiple slots, and the effect of guide pipe is to realize turning.In described guide pipe 3, be set with high-voltage tube 4, there is shower nozzle 5 on high-voltage tube 4 tops, and there is nozzle 6 shower nozzle 5 both sides, and High-Pressure Water sprays by nozzle, realizes pressure break.Wherein, high-voltage tube 4 is more piece, and two adjacent joint high-voltage tubes 4 connect by linkage; Linkage comprises connector body 7, standby cap 8 and expansion loop 9, and two adjacent joint high-voltage tube 4 ends enter in connector body 7, and standby cap 8 is equipped with at connector body 7 two ends, and the joining place of standby cap 8 and connector body 7 is provided with expansion loop 9.In the middle of reality, due to the length limited of high-voltage tube, therefore need more piece high-voltage tube to couple together use, connector body mainly plays the effect of connection, and after the standby cap at two ends screws, compression-expansion ring, after expansion loop expands, the joining place of the standby cap of sealing and connector body, can ensure sealing effectiveness.
Fig. 3 is the structural representation of high-voltage tube, and as shown in the figure, described high-voltage tube 4 is provided with annular groove 10, and expansion loop 9 is positioned at annular groove 10, and this kind of design can ensure that expansion loop can not be shifted.
In order to prevent back-off, once because there is back-off, sealing effectiveness will lose efficacy, and therefore, between described standby cap 8 and connector body 7, was also provided with safetied pin 11.
Between described high-voltage tube 4 and connector body 7, sealing ring 12 is also housed, ensures sealing, prevent high pressure seepage flow.
When use, under the effect of guide pipe, high-voltage tube is passive to turn round.High-Pressure Water, through high-voltage tube, sprays to both sides by the nozzle on shower nozzle, and pressure break is realized in stratum.Linkage can ensure thoroughly sealing between two joint high-voltage tubes, prevents the raw seepage of elevated pressure.
The present invention both can realize ultra-short radius and turn round, can also realize fracturing, can thoroughly prevent seepage, realize the oil formation improvement effect of individual well duplex skill, realize directional drilling, directional fracturing, oil field residue oil reservoir is fully taped the latent power, and another of having filled up domestic and international oil production engineering is blank, plays great impetus to the development of oil production engineering.
Claims (4)
1. a super short radial horizontal well fracturing instrument, comprise oil pipe (1), variable buckle (2) and guide pipe (3), oil pipe (1) is connected with guide pipe (3) by variable buckle (2), guide pipe (3) one sides have multiple slots, it is characterized in that: in described guide pipe (3), be set with high-voltage tube (4), there is shower nozzle (5) on high-voltage tube (4) top, there is nozzle (6) shower nozzle (5) both sides, wherein, high-voltage tube (4) is more piece, and two adjacent joint high-voltage tubes (4) connect by linkage; Linkage comprises connector body (7), standby cap (8) and expansion loop (9), two adjacent joint high-voltage tube (4) ends enter in connector body (7), standby cap (8) is equipped with at connector body (7) two ends, and the joining place of standby cap (8) and connector body (7) is provided with expansion loop (9).
2. super short radial horizontal well fracturing instrument according to claim 1, is characterized in that: described high-voltage tube (4) is provided with annular groove (10), and expansion loop (9) is positioned at annular groove (10).
3. super short radial horizontal well fracturing instrument according to claim 1, is characterized in that: between described standby cap (8) and connector body (7), be also provided with safetied pin (11).
4. super short radial horizontal well fracturing instrument according to claim 1, is characterized in that: between described high-voltage tube (4) and connector body (7), sealing ring (12) is also housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410264758.6A CN103993868A (en) | 2014-06-16 | 2014-06-16 | Ultra-short radius horizontal well hydraulic fracturing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410264758.6A CN103993868A (en) | 2014-06-16 | 2014-06-16 | Ultra-short radius horizontal well hydraulic fracturing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103993868A true CN103993868A (en) | 2014-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410264758.6A Pending CN103993868A (en) | 2014-06-16 | 2014-06-16 | Ultra-short radius horizontal well hydraulic fracturing tool |
Country Status (1)
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| CN (1) | CN103993868A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685658A (en) * | 2019-11-06 | 2020-01-14 | 大庆辰平钻井技术服务有限公司 | Open hole staged fracturing method for ultra-short radius horizontal well |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2198016A (en) * | 1938-08-18 | 1940-04-23 | James C Rogers | Lateral drill mechanism |
| US2336338A (en) * | 1932-04-20 | 1943-12-07 | John A Zublin | Apparatus for drilling bores deviating from existing well bores |
| US4007797A (en) * | 1974-06-04 | 1977-02-15 | Texas Dynamatics, Inc. | Device for drilling a hole in the side wall of a bore hole |
| CN2190694Y (en) * | 1993-11-22 | 1995-03-01 | 王可亮 | Lock ring type oil leaking device |
| CN2278757Y (en) * | 1996-12-26 | 1998-04-15 | 中原石油勘探局钻井工艺技术研究院 | Flexible pipe drilling tool for super-short radium horizontal drilling |
| CN2391001Y (en) * | 1999-09-10 | 2000-08-09 | 中原石油勘探局钻井工艺技术研究所 | Whipstock for horizontal well drilling |
| CN201372772Y (en) * | 2009-03-25 | 2009-12-30 | 张朝纯 | High pressure water-jet combination tool for ultra-short radius radial horizontal well |
| CN101748970A (en) * | 2009-12-15 | 2010-06-23 | 中国石油集团长城钻探工程有限公司 | Ultra-short radius radial drilling tool system |
| CN102220842A (en) * | 2011-05-13 | 2011-10-19 | 张朝纯 | Radial high-pressure water jetting composite well with ultrashort radius as well as well completion tool and technology |
| CN203891860U (en) * | 2014-06-16 | 2014-10-22 | 大庆井泰石油工程技术股份有限公司 | Ultra-short radius hydrofracture tool for horizontal well |
-
2014
- 2014-06-16 CN CN201410264758.6A patent/CN103993868A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2336338A (en) * | 1932-04-20 | 1943-12-07 | John A Zublin | Apparatus for drilling bores deviating from existing well bores |
| US2198016A (en) * | 1938-08-18 | 1940-04-23 | James C Rogers | Lateral drill mechanism |
| US4007797A (en) * | 1974-06-04 | 1977-02-15 | Texas Dynamatics, Inc. | Device for drilling a hole in the side wall of a bore hole |
| CN2190694Y (en) * | 1993-11-22 | 1995-03-01 | 王可亮 | Lock ring type oil leaking device |
| CN2278757Y (en) * | 1996-12-26 | 1998-04-15 | 中原石油勘探局钻井工艺技术研究院 | Flexible pipe drilling tool for super-short radium horizontal drilling |
| CN2391001Y (en) * | 1999-09-10 | 2000-08-09 | 中原石油勘探局钻井工艺技术研究所 | Whipstock for horizontal well drilling |
| CN201372772Y (en) * | 2009-03-25 | 2009-12-30 | 张朝纯 | High pressure water-jet combination tool for ultra-short radius radial horizontal well |
| CN101748970A (en) * | 2009-12-15 | 2010-06-23 | 中国石油集团长城钻探工程有限公司 | Ultra-short radius radial drilling tool system |
| CN102220842A (en) * | 2011-05-13 | 2011-10-19 | 张朝纯 | Radial high-pressure water jetting composite well with ultrashort radius as well as well completion tool and technology |
| CN203891860U (en) * | 2014-06-16 | 2014-10-22 | 大庆井泰石油工程技术股份有限公司 | Ultra-short radius hydrofracture tool for horizontal well |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685658A (en) * | 2019-11-06 | 2020-01-14 | 大庆辰平钻井技术服务有限公司 | Open hole staged fracturing method for ultra-short radius horizontal well |
| CN110685658B (en) * | 2019-11-06 | 2021-07-23 | 大庆辰平钻井技术服务有限公司 | Open hole staged fracturing method for ultra-short radius horizontal well |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20140820 |