CN104314546A - Staged fracturing well completion pipe string in horizontal well casing and staged fracturing process - Google Patents
Staged fracturing well completion pipe string in horizontal well casing and staged fracturing process Download PDFInfo
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- CN104314546A CN104314546A CN201410490379.9A CN201410490379A CN104314546A CN 104314546 A CN104314546 A CN 104314546A CN 201410490379 A CN201410490379 A CN 201410490379A CN 104314546 A CN104314546 A CN 104314546A
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- sliding sleeve
- staged fracturing
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- sleeve
- packer
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000010276 construction Methods 0.000 claims abstract description 17
- 239000007921 spray Substances 0.000 claims description 14
- 238000005488 sandblasting Methods 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 11
- 238000009792 diffusion process Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 239000011229 interlayer Substances 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract 2
- 239000007924 injection Substances 0.000 abstract 2
- 238000007789 sealing Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000000246 remedial effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/267—Methods for stimulating production by forming crevices or fractures reinforcing fractures by propping
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a staged fracturing well completion pipe column in a horizontal well casing and a staged fracturing process, and adopts the technical scheme that: the staged fracturing units are connected through oil pipes, each staged fracturing unit corresponds to a perforation section of a sleeve, the lower end of the staged fracturing unit at the lower end is connected with a hydraulic anchor A through the oil pipe, the other end of the hydraulic anchor A is connected with a direct injection sliding sleeve, and the direct injection sliding sleeve corresponds to the perforation section of the sleeve; the staged fracturing unit at the upper end is connected with a packer and a spiral centralizer through an oil pipe and then is connected with a hydraulic anchor B, and the upper end of the hydraulic anchor B is connected with the oil pipe; the staged fracturing unit is formed by sequentially connecting a ball seat, a packer, a spiral centralizer and a falling sliding sleeve from bottom to top, and the sizes of the inner cores of the falling sliding sleeve and the ball seat are matched with the outer diameter of a sealing ball and are sequentially increased from bottom to top. The invention can realize staged fracturing in the horizontal well casing by one trip of the pipe column, simplifies the construction process, seals off the stratum, reduces the interlayer interference and improves the fracturing transformation effect.
Description
Technical field
The present invention relates to a kind of completion tubular column technical field, particularly staged fracturing completion tubular column and technique thereof in a kind of sleeve pipe, this tubing string and technique are specially adapted to horizontal well reservoir fracturing improvement.
Background technology
Staged Fracturing Technique In Horizontal Wells is a kind of conventional oilfield stimulation measure, is particularly useful for the exploitation of gas reservoir and fractured reservoir.The staged fracturing technique be applied at present in sleeve pipe mainly contains bridging plug perforation staged fracturing technique and jetting staged fracturing technique.Wherein bridging plug perforation staged fracturing technique repeatedly enters down bridging plug packing pit shaft, perforation, pressure break, and this technique needs many times tubing strings to complete, and construct discontinuous, duty cycle is long.And another kind of jetting staged fracturing technique is by entering down sleeve type hydrajet tool in advance, open correspondent section sliding sleeve step by step, after completing this grade of transformation, ball-off this grade of passage is also opened next stage sliding sleeve and is carried out transformation operation, constantly repeats until the segmentation completing whole horizontal well is transformed; Although this technique can realize one-trip string multistage pressure break, owing to lacking confinement system, during pressure break, easily cause interlayer interference.
Summary of the invention
The present invention is directed to above-mentioned Problems existing, staged fracturing completion tubular column in a kind of horizontal well casing pipe is provided, can while packing pit shaft, one-trip string realizes the staged fracturing in horizontal well casing pipe.Present invention also offers the staged fracturing technique of this completion tubular column.
For achieving the above object, the technical solution used in the present invention is:
Staged fracturing completion tubular column in horizontal well casing pipe, in the sleeve pipe of perforation in advance, completion tubular column is installed, described completion tubular column comprises oil pipe, staged fracturing unit, hydraulic anchor and directly sprays sliding sleeve, connected by described oil pipe between staged fracturing unit described in several, the perforated interval of the corresponding described sleeve pipe of each described staged fracturing unit difference, the lower end of the described staged fracturing unit of lower end connects hydraulic anchor A by described oil pipe, the other end of described hydraulic anchor A is connected with described straight spray sliding sleeve, and described straight spray sliding sleeve is corresponding with the perforated interval of described sleeve pipe; The described staged fracturing unit of upper end connects packer by described oil pipe and is connected with hydraulic anchor B with after spiral centering device, and the upper end of described hydraulic anchor B connects described oil pipe; Described staged fracturing unit is connected to form successively by ball seat, packer, spiral centering device and the sliding sleeve that comes off from bottom to top, described in the come off inner core size of sliding sleeve and described ball seat increase successively from bottom to top, and to mate successively with the external diameter of ball sealer.
Further, described straight spray sliding sleeve is positioned at the first perforated interval top of described sleeve pipe, described in the sliding sleeve that comes off lay respectively at the end perforation place of described well-case perforating section.
Further, safety joint is provided with in the upper end of described hydraulic anchor B.
The staged fracturing technique of staged fracturing completion tubular column in horizontal well casing pipe, technique is as follows:
A, transfer tubing string: completion tubular column is lowered into assigned address in sleeve pipe;
B, first order fracturing work: pressurize in oil pipe, hydraulic anchor A and hydraulic anchor B grappling, the whole swollen envelope of packer, opens until directly spray sliding sleeve (1), carries out first order pressing crack construction afterwards, terminate the automatic deblocking of rear all packers;
C, second level fracturing work: in oil pipe, drop into ball sealer A, ball sealer A is seated in and comes off on sliding sleeve A, pressurizes in pipe, opens the sliding sleeve A that comes off, sets up the sandblasting passage on tubing string and stratum; Now ball sealer A drops on ball seat A, to work in coordination work with the sliding sleeve A that comes off, make the whole swollen envelope of packer, the space being positioned at the second perforated interval in sleeve pipe realizes packing, then second level pressing crack construction is carried out to the second perforated interval, terminate the automatic deblocking of rear all packers;
D, third level fracturing work: in oil pipe, drop into ball sealer B, ball sealer B is seated in and comes off on sliding sleeve B, pressurizes in pipe, opens the sliding sleeve B that comes off, sets up the sandblasting passage on tubing string and stratum; Now ball sealer B drops on ball seat B, to work in coordination work with the sliding sleeve B that comes off, make packer B to the whole swollen envelope of packer of upper end, the space being positioned at the 3rd perforated interval in sleeve pipe realizes packing, then third level pressing crack construction is carried out to the 3rd perforated interval, terminate the automatic deblocking of rear all packers;
Further, after all fracturing works complete, closing well waits for pressure diffusion, open flow discharge opeing.
Further, after described open flow discharge opeing, anti-flushing well, proposes described completion tubular column.
Staged fracturing completion tubular column and technique in horizontal well casing pipe of the present invention, can realize in horizontal well casing pipe staged fracturing by one-trip string, simplify working procedure, simultaneously packing stratum, reduce interlayer interference, improve fracturing reform effect.
Accompanying drawing explanation
The completion tubular column structural representation that Fig. 1 provides for the embodiment of the present invention.
The second level pressing crack construction schematic diagram of the completion tubular column that Fig. 2 provides for the embodiment of the present invention.
Whole pressing crack constructions of the completion tubular column that Fig. 3 provides for the embodiment of the present invention terminate rear pit shaft schematic diagram.
In the sleeve pipe that Fig. 4 provides for the embodiment of the present invention, staged fracturing comes off spherically seated shift sleeve structure schematic diagram.
The A-A of Fig. 4 that Fig. 5 provides for the embodiment of the present invention is to sectional view (sliding sleeve be in closure state under, magnetic lock ball block protrudes and closes up).
Fig. 6 is in the structural representation of opening for sliding sleeve that the embodiment of the present invention provides.
In Fig. 6 that Fig. 7 provides for the embodiment of the present invention B-B to sectional view (sliding sleeve be in opening under).
In Fig. 1-3: 1. directly spray sliding sleeve, 21. hydraulic anchor A, 31. ball seat A, 41. packer A, 51. spiral centering device A, 61. come off sliding sleeve A, 32. ball seat B, 42. packer B, 52. spiral centering device B, 62. come off sliding sleeve B, 33. ball seat C, 43. packer C, 53. spiral centering device C, 63. come off sliding sleeve C, 34. ball seat D, 44. packer D, 54. spiral centering device D, 64. come off sliding sleeve D, 35. ball seat E, 45. packer E, 55. spiral centering device E, 65. come off sliding sleeve E, 36. ball seat F, 46. packer F, 56. spiral centering device F, 66. come off sliding sleeve F, 47. packer G, 57. spiral centering device G, 22. hydraulic anchor B, 7. safety joint, 8. oil pipe, 91. ball sealer A, 92. ball sealer B, 93. ball sealer C, 94. ball sealer D, 95. ball sealer E, 96. ball sealer F, 100. completion tubular column, 200. sleeve pipe, 300. fracturing fracture, 101. first perforated intervals, 102. second perforated intervals, 103. the 3rd perforated intervals, 104. the 4th perforated intervals, 105. the 5th perforated intervals, 106. the 6th perforated intervals, 107. the 7th perforated intervals.
Detailed description of the invention
Staged fracturing completion tubular column in the present embodiment horizontal well casing pipe, has implemented primarily of completion tubular column 100 and ball sealer A 91 to ball sealer F 96 common combination.
As shown in Figure 1, in sleeve pipe 200, completion tubular column 100 is installed; Perforation in advance in sleeve pipe 200, is divided into the first perforated interval 101, second perforated interval 102, the 3rd perforated interval 103, the 4th perforated interval 104, the 5th perforated interval 105, the 6th perforated interval 106, the 7th perforated interval 107.Completion tubular column 100 is from bottom to top by directly spraying sliding sleeve 1, oil pipe 8, hydraulic anchor A 21, oil pipe 8, ball seat A 31, packer A 41, spiral centering device A 51, come off sliding sleeve A 61, oil pipe 8, ball seat B 32, packer B 42, spiral centering device B 52, come off sliding sleeve B 62, oil pipe 8, ball seat C 33, packer C 43, spiral centering device C 53, come off sliding sleeve C 63, oil pipe 8, ball seat D 34, packer D 44, spiral centering device D 54, come off sliding sleeve D 64, oil pipe 8, ball seat E 35, packer E 45, spiral centering device E 55, come off sliding sleeve E 65, oil pipe 8, ball seat F 36, packer F 46, spiral centering device F 56, come off sliding sleeve F 66, oil pipe 8, packer G 47, spiral centering device G 57, hydraulic anchor B 22, safety joint 7, oil pipe 8 connects successively, oil pipe 8 can be adjusted to different length as required.
Straight spray sliding sleeve 1 present position is the first perforated interval 101 top, and straight spray sliding sleeve 1 carries out first order fracturing work after opening.
Ball seat A 31, packer A 41, spiral centering device A 51, the sliding sleeve A 61 that comes off are placed in bottom the second perforated interval 102, and the sliding sleeve A 61 that comes off is positioned at the end perforation place of this section; Ball seat B 32, packer B 42, spiral centering device B 52, the sliding sleeve B 62 that comes off are placed in bottom the 3rd perforated interval 103, and the sliding sleeve B 62 that comes off is positioned at the end perforation place of this section; Ball seat C 33, packer C 43, spiral centering device C 53, the sliding sleeve C 63 that comes off are placed in bottom the 4th perforated interval 104, and the sliding sleeve C 63 that comes off is positioned at the end perforation place of this section; Ball seat D 34, packer D 44, spiral centering device D 54, the sliding sleeve D 64 that comes off are placed in bottom the 5th perforated interval 105, and the sliding sleeve D 64 that comes off is positioned at the end perforation place of this section; Ball seat E 35, packer E 45, spiral centering device E 55, the sliding sleeve E 65 that comes off are placed in bottom the 6th perforated interval 106, and the sliding sleeve E 65 that comes off is positioned at the end perforation place of this section; Ball seat F 36, packer F 46, spiral centering device F 56, the sliding sleeve F 66 that comes off are placed in bottom the 7th perforated interval 107, and the sliding sleeve F 66 that comes off is positioned at the end perforation place of this section.
Sandblasting passage is opened in the effect of sliding sleeve A 61 to the sliding sleeve F 66 that comes off of coming off, and carries out fracturing work at different levels to corresponding well section.The inner core size of sliding sleeve and ball seat of coming off increases successively by pressure break grade, can respectively with the ball sealer cooperating of corresponding size, make each corresponding packer setting, inner for sleeve pipe 200 packing become several sections.
The sliding sleeve A 61 that comes off is identical to the structure of the sliding sleeve F 66 that comes off, concrete structure is as follows: comprise top connection 601, main body overcoat 602, sliding sleeve 604 and lower contact 605, main body overcoat 602 is threaded connection with top connection 601 and lower contact 605 respectively, and strengthened fixing by clamp-screw 606, main body overcoat 602 upper wall has radial direction through hole sandblasting hole 6021, main body overcoat 602 lower inner wall has groove 6022, it is inner that sliding sleeve 604 is arranged on main body overcoat 602, uniform radial direction through hole on the wall body of sliding sleeve 604, magnetic lock ball block 603 is installed in hole, magnetic lock ball block 603 inner end wall is arc-shaped, sliding sleeve 604 external diameter is greater than lower contact 605 internal diameter, described main body overcoat 602 and top connection 601, between sliding sleeve 604 and lower contact 605, seal 608 is all installed, when staged fracturing come off spherically seated sliding sleeve be in closure state time, sliding sleeve 604 is connected with main body overcoat 602 by shear pin 607, sliding sleeve 604 is pressed on sandblasting hole 6021, magnetic lock ball block 603 the inner protrudes from sliding sleeve 604 inwall, and the inner wall edge of adjacent magnetic lock ball block contacts between two, thus form the projection of closed circular ring-type, when staged fracturing come off spherically seated sliding sleeve be in opening time, sliding sleeve 604 lower end contacts with lower contact 605, and magnetic lock ball block 603 is positioned at groove 6022 and sliding sleeve 604.During work, ball sealer is dropped in ground in tubing string, the projection that magnetic lock ball block 603 is formed can accept ball sealer, reach ball sealer and magnetic lock ball block 603 inwall intimate contact, and magnetic lock ball block 3 material is through magnetization treatment, realize preventing from rolling by magnetic secure lock, thus strengthen seal herein, effectively reduce over liquid measure.Suppress in tubing string, pressure to act on ball sealer and sliding sleeve 604 and passes to shear pin 607, until shear pin 607 is cut off; Sliding sleeve 604 drives magnetic lock ball block 603 to move down, and final sliding sleeve 604 contacts stopping with lower contact 605 and moves down; Now magnetic lock ball block 603 is contracted in groove 6022, and sliding sleeve 604 inwall recovers latus rectum, and ball sealer is shed on string matching instrument ball seat, thus can open the swollen envelope kit packer of pressure, realizes packing pit shaft.Meanwhile, the sandblasting hole 6021 on main body overcoat 602 is exposed completely, and sandblasting Path Setup inside and outside tubing string can carry out sandblasting fracturing work.
The effect of spiral centering device A 51 to spiral centering device G 57 improves tubing string centralizer.
The effect of hydraulic anchor A 21 and hydraulic anchor B 22 is fixed in sleeve pipe 200 by completion tubular column 100, prevents tubing string play.
The effect of safety joint 7 is after all fracturing works complete, and when above carrying completion tubular column 100, cannot propose if tubing string is hampered, and pitching can build the pressure safety joint 7 is disconnected, thus proposes safety joint 7 with the oil pipe 8 of upper part, is lower step remedial measure slot milling.
The external diameter of ball sealer A 91 to ball sealer F 96 increases successively by pressure break grade, is first seated in and comes off accordingly in sliding sleeve during work, and suppress rear unlatching and to come off sliding sleeve, drop in corresponding ball seat afterwards, sliding sleeve coordinates corresponding packer setting with coming off.
In horizontal well casing pipe of the present invention, completion tubular column staged fracturing technique is first assemble complete by completion tubular column 100, is lowered into the sleeve pipe 200 shooting away hole in advance inner, then carry out spraying, fracturing work, its step is as follows:
A, transfer tubing string: completion tubular column 100 is lowered into assigned address in sleeve pipe 200.
B, first order fracturing work: pressurization in oil pipe 8, hydraulic anchor A 21 and hydraulic anchor B 22 grappling, the whole swollen envelope of packer A 41 to packer G 47, until straight spray sliding sleeve 1 is opened, carry out first order pressing crack construction afterwards, construction terminates rear all removing seal for packers.
C, second level fracturing work: see Fig. 2, drop into ball sealer A 91 in oil pipe 8, and ball sealer A 91 is seated in and comes off on sliding sleeve A 61, pressurizes in pipe, opens the sliding sleeve A 61 that comes off, set up the sandblasting passage on tubing string and stratum; Now ball sealer A 91 drops on ball seat A 31, to work in coordination work with the sliding sleeve A 61 that comes off, make the whole swollen envelope of packer A 41 to packer G 47, the space being positioned at the second perforated interval 102 in sleeve pipe 200 realizes packing, then carry out second level pressing crack construction to the second perforated interval 102, construction terminates the automatic deblocking of rear all packers.
D, third level fracturing work: in oil pipe 8, drop into ball sealer B 92, ball sealer B 92 is seated in and comes off on sliding sleeve B 62, pressurizes in pipe, opens the sliding sleeve B 62 that comes off, sets up the sandblasting passage on tubing string and stratum; Now ball sealer B 92 drops on ball seat B 32, to work in coordination work with the sliding sleeve B 62 that comes off, make the whole swollen envelope of packer B 42 to packer G 47, the space being positioned at the 3rd perforated interval 103 in sleeve pipe 200 realizes packing, then carry out third level pressing crack construction to the 3rd perforated interval 103, construction terminates the automatic deblocking of rear all packers.
E, fourth, fifth, six, seven grades of fracturing works: utilize with the identical method of second and third grade of fracturing work, complete ensuing pressing crack construction at different levels.
After E, all fracturing works complete, closing well waits for pressure diffusion, open flow discharge opeing.
F, anti-flushing well, propose completion tubular column 100, whole activities terminates.If run into tubing string to be hampered the situation that cannot propose, then building the pressure to pitching in tubing string from ground by oil pipe 8, safety joint 7 is disconnected, thus propose safety joint 7 with the oil pipe 8 of upper part, is lower step remedial measure slot milling.
So far, in the horizontal well casing pipe of the present embodiment, completion tubular column staged fracturing construction technology all terminates, and as shown in Figure 3, forms fracturing fracture 300 at each section of perforated interval.
It should be noted last that, above detailed description of the invention is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to example to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (6)
1. staged fracturing completion tubular column in horizontal well casing pipe, in the sleeve pipe (200) of perforation in advance, completion tubular column (100) is installed, it is characterized in that: described completion tubular column (100) comprises oil pipe (8), staged fracturing unit, hydraulic anchor and directly spray sliding sleeve (1), connected by described oil pipe (8) between staged fracturing unit described in several, the perforated interval of the corresponding described sleeve pipe (200) of each described staged fracturing unit difference, the lower end of the described staged fracturing unit of lower end connects hydraulic anchor A (21) by described oil pipe (8), the other end of described hydraulic anchor A (21) is connected with described straight spray sliding sleeve (1), described straight spray sliding sleeve (1) is corresponding with the perforated interval of described sleeve pipe (200), the described staged fracturing unit of upper end connects packer by described oil pipe (8) and is connected with hydraulic anchor B (22) with after spiral centering device, and the upper end of described hydraulic anchor B (22) connects described oil pipe (8), described staged fracturing unit is connected to form successively by ball seat, packer, spiral centering device and the sliding sleeve that comes off from bottom to top, described in the come off inner core size of sliding sleeve and described ball seat increase successively from bottom to top, and to mate successively with the external diameter of ball sealer.
2. staged fracturing completion tubular column in horizontal well casing pipe as claimed in claim 1, it is characterized in that: described straight spray sliding sleeve (1) is positioned at the first perforated interval top of described sleeve pipe (200), described in the sliding sleeve that comes off lay respectively at the end perforation place of described sleeve pipe (200) perforated interval.
3. staged fracturing completion tubular column in horizontal well casing pipe as claimed in claim 1 or 2, is characterized in that: be provided with safety joint (7) in the upper end of described hydraulic anchor B (22).
4. the staged fracturing technique of staged fracturing completion tubular column in horizontal well casing pipe according to claim 1, is characterized in that technique is as follows:
A, transfer tubing string: completion tubular column (100) is lowered into sleeve pipe (200) interior assigned address;
B, first order fracturing work: pressurization in oil pipe (8), hydraulic anchor A (21) and hydraulic anchor B (22) grappling, the whole swollen envelope of packer, open until directly spray sliding sleeve (1), carry out first order pressing crack construction afterwards, terminate the automatic deblocking of rear all packers;
C, second level fracturing work: in oil pipe (8), drop into ball sealer A (91), ball sealer A (91) is seated in and comes off on sliding sleeve A (61), pressurize in pipe, open the sliding sleeve A (61) that comes off, set up the sandblasting passage on tubing string and stratum; Now ball sealer A (91) drops on ball seat A (31), to work in coordination work with the sliding sleeve A (61) that comes off, make the whole swollen envelope of packer, the space being positioned at the second perforated interval (102) in sleeve pipe (200) realizes packing, then second level pressing crack construction is carried out to the second perforated interval (102), terminate the automatic deblocking of rear all packers;
D, third level fracturing work: in oil pipe (8), drop into ball sealer B (92), ball sealer B (92) is seated in and comes off on sliding sleeve B (62), pressurize in pipe, open the sliding sleeve B (62) that comes off, set up the sandblasting passage on tubing string and stratum; Now ball sealer B (92) drops on ball seat B (32), to work in coordination work with the sliding sleeve B (62) that comes off, make packer B (42) to the whole swollen envelope of packer of upper end, the space being positioned at the 3rd perforated interval (103) in sleeve pipe (200) realizes packing, then third level pressing crack construction is carried out to the 3rd perforated interval (103), terminate the automatic deblocking of rear all packers.
5. technique according to claim 4, is characterized in that, also comprises: after all fracturing works complete, and closing well waits for pressure diffusion, open flow discharge opeing.
6. technique according to claim 5, is characterized in that, also comprises: after described open flow discharge opeing, and anti-flushing well proposes described completion tubular column (100).
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|---|---|---|---|
| CN201410490379.9A CN104314546B (en) | 2014-09-23 | 2014-09-23 | Staged fracturing well completion pipe string in horizontal well casing and staged fracturing process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410490379.9A CN104314546B (en) | 2014-09-23 | 2014-09-23 | Staged fracturing well completion pipe string in horizontal well casing and staged fracturing process |
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| CN104314546B CN104314546B (en) | 2017-06-06 |
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Cited By (16)
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| CN105134092A (en) * | 2015-08-05 | 2015-12-09 | 中国海洋石油总公司 | High temperature high pressure horizontal well completion pipe string with middle shut-in well injected with hypobarism liquid |
| CN105221094A (en) * | 2015-09-23 | 2016-01-06 | 中国石油天然气股份有限公司 | Horizontal well double-sealing single-clamp blowout prevention process |
| CN105696994A (en) * | 2016-01-20 | 2016-06-22 | 中国石油化工股份有限公司 | Device used for multidirectional pressure control type spraying-sealing fracturing and tubular column comprising same |
| CN105986780A (en) * | 2015-02-15 | 2016-10-05 | 赵华 | Permanent type plug-control sand blasting slide sleeve, fracturing string and plug-control staged fracturing technique |
| WO2017028322A1 (en) * | 2015-08-17 | 2017-02-23 | 中国石油大学(华东) | Horizontal well staged fracturing oil production method by injection and production in same well |
| CN106639963A (en) * | 2016-12-28 | 2017-05-10 | 中国石油集团渤海钻探工程有限公司 | Degradable packer, multi-stage layering fracturing pipe column and fracturing construction method thereof |
| WO2018040138A1 (en) * | 2016-08-30 | 2018-03-08 | 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 | Spiral-type flow separation dual-wall oil tube for volume fracturing of horizontal well |
| CN109138959A (en) * | 2018-08-07 | 2019-01-04 | 中国石油大学(北京) | A kind of supercritical CO2Cumulative fracturing process |
| CN109469470A (en) * | 2018-12-20 | 2019-03-15 | 中国海洋石油集团有限公司 | A kind of horizontal well naked eye staged fracturing equipment |
| CN110617054A (en) * | 2019-09-17 | 2019-12-27 | 中国石油天然气股份有限公司 | Oil field horizontal well sectional testing pipe column and method |
| CN111206910A (en) * | 2020-01-19 | 2020-05-29 | 孙淑芳 | Hydraulic jet staged fracturing tool for horizontal well |
| CN111608633A (en) * | 2020-06-30 | 2020-09-01 | 中国石油天然气股份有限公司 | Large-scale fracturing process suitable for horizontal well |
| CN113494264A (en) * | 2021-07-09 | 2021-10-12 | 中煤科工集团西安研究院有限公司 | Water-resisting layer reinforced grouting transformation device and method based on staged fracturing |
| CN114482908A (en) * | 2020-10-26 | 2022-05-13 | 中国石油化工股份有限公司 | Multi-layer section one-trip pipe column water exploration pipe column and using method |
| CN114592841A (en) * | 2020-12-02 | 2022-06-07 | 中国石油天然气股份有限公司 | Fracturing construction method applied to oil and gas reservoir development and fracturing sliding sleeve assembly |
| US11692423B1 (en) | 2021-12-23 | 2023-07-04 | Southwest Petroleum University | Method for realizing uniform stimulation for the oil and gas well by low-cost multi-stage fracturing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201902202U (en) * | 2010-11-25 | 2011-07-20 | 中国石油化工股份有限公司 | Staged fracturing string of oil-gas horizontal well |
| CN102979495A (en) * | 2012-12-28 | 2013-03-20 | 中国石油集团渤海钻探工程有限公司 | Multi-cluster current limiting fracturing string of open hole horizontal well and fracturing method thereof |
| CN103277078A (en) * | 2013-06-04 | 2013-09-04 | 中国海洋石油总公司 | Hydraulic sliding sleeve |
| US8794330B2 (en) * | 2010-11-01 | 2014-08-05 | Completion Tool Developments, Inc. | Apparatus for single-trip time progressive wellbore treatment |
-
2014
- 2014-09-23 CN CN201410490379.9A patent/CN104314546B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8794330B2 (en) * | 2010-11-01 | 2014-08-05 | Completion Tool Developments, Inc. | Apparatus for single-trip time progressive wellbore treatment |
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