CN203347766U - Sliding sleeve layering fracturing tool of well cementation sleeve - Google Patents
Sliding sleeve layering fracturing tool of well cementation sleeve Download PDFInfo
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- CN203347766U CN203347766U CN 201320379073 CN201320379073U CN203347766U CN 203347766 U CN203347766 U CN 203347766U CN 201320379073 CN201320379073 CN 201320379073 CN 201320379073 U CN201320379073 U CN 201320379073U CN 203347766 U CN203347766 U CN 203347766U
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- sliding sleeve
- sleeve
- pressure break
- casing
- fracturing
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Abstract
The utility model relates to a sliding sleeve layering fracturing tool of a well cementation sleeve. Fracturing discs are arranged at the positions in different lengths of a well tube, a sand adding tubular column is arranged at the vertical section in the well tube, a packer is arranged at the lower end of the sand adding tubular column, the lower end of the packer is connected with 22-36 sections of sleeve ball injection sliding sleeves through bending tubes, one section of sleeve ball injection sliding sleeve is connected with one adjacent section of sleeve ball injection sliding sleeve through an oil tube, each section of sleeve ball injection sliding sleeve corresponds to one fracturing disc on the well tube, the right end of the last section of sleeve ball injection sliding sleeve is connected with a float shoe through the oil tube. A solid propellant in a fracturing hole of the last fracturing disc on the well tube is detonated under the ground water batting pressure, a plugging sheet on a screening tube is flushed away, a loop of high-pressure sand adding water is formed, and water power fracturing is achieved through ball injection in sequence of the ground high-pressure sand adding water from the last section of sleeve ball injection sliding sleeve to the first section of sleeve ball injection sliding sleeve until fracturing construction on all layer sections is carried out. The sliding sleeve layering fracturing tool has the advantages of being simple in structure, high in fracturing efficiency and the like, and the sliding sleeve layering fracturing tool can be popularized and used in oil fields.
Description
Technical field
The utility model belongs to producing oil, gas, water from well; The method of solubility or solubilization material or slurry of mineral or equipment technical field, be specifically related to manage well cementing casing pipe sliding sleeve separate stratum fracfturing instrument.
Background technology
The staged fracturing of oil exploitation horizontal well is processed, and is generally the mechanical type staged fracturing, and this pressure break mode contributes for the injection rate that improves reservoir permeability and increase exploitation well yield and Injection Well, but it also exists following shortcoming or deficiency simultaneously:
By the mandatory section construction of fracturing packer, after pressure break completes an interval, the upper lifting pipe post, carry out the pressing crack construction of next interval, causes so first the complete rear packer of pressure break to be difficult to deblocking; Due to upper lifting pipe post packer sustain damage, poorly sealed, cause pressure break to lose efficacy; The complete rear strata pressure of pressure break is higher, easily causes blowout during the upper lifting pipe post, leads to a disaster; The method operability is poor, and technique is loaded down with trivial details, and carry tubing string at every turn and need dismounting well head and pressure break pipeline, the program complexity, labor intensity of operating staff is large, poor stability.
The exploitation of Oil/gas Well, the mode of domestic most employing casing cementing completion is carried out perforation under the well cementation environment at present, adopts pitching sliding sleeve staged fracturing technology exploitation in sleeve pipe after perforation.In sleeve pipe, pitching sliding sleeve staged fracturing technology has become the Main Yield-increasing measure of Oil/gas Well, and general individual well oil and gas production can increase by 3～5 times.But in conventional pipe, pitching sliding sleeve staged fracturing tool is opened oil-gas Layer by perforation, can there is the phenomenon of perforation compaction band contaminated oil gas channel, the while high temp jet can injure the Oil/gas Well sleeve pipe and cause casing deformation even to be broken, and a little less than the perforating technology width generation capacity, generally only have 1 meter, add high enegry gas fracturing, formation fracture length also only has 3～4 meters, the hydrocarbon stratum seepage channel is short, and seepage area is little, and recovery ratio is low.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the shortcoming of above-mentioned casing cementing completion equipment, and a kind of reasonable in design, simple in structure, well cementing casing pipe sliding sleeve separate stratum fracfturing instrument that the rate of oil and gas recovery is high is provided.
Addressing the above problem adopted technical scheme is: on the different length of well casing, be provided with rupture disk, vertical section in well casing is provided with and adds the sandpipe post, the lower end that adds the sandpipe post is provided with packer, the lower end of packer connects with 22～36 joint sleeve pipe pitching sliding sleeves with bend pipe, casing joint pitching sliding sleeve connects with oil pipe with adjacent casing joint pitching sliding sleeve, every joint sleeve pipe pitching sliding sleeve is corresponding with a rupture disk on well casing, and the right-hand member of final section sleeve pipe pitching sliding sleeve connects with float shoe by oil pipe.
Rupture disk of the present utility model is: screen casing radially every meter at least be processed with 2 circles totally 6～30 pressure break holes, a circle pressure break hole and adjacent is enclosed the pressure break hole and is staggered, pressure break is provided with jam on hole.Last rupture disk on the corresponding well casing of final section sleeve pipe pitching sliding sleeve right-hand member is: screen casing radially every meter at least be processed with 2 circles totally 6～30 pressure break holes, one circle pressure break hole and an adjacent circle pressure break hole are staggered, pressure break is provided with solid propellant in hole, on the external surface of solid propellant, is provided with jam.
The length of screen casing of the present utility model is 1～20 meter, and the aperture in pressure break hole is 10～30mm, and the thickness of the jam arranged in the pressure break hole is 3～10mm.
The utility model has adopted rupture disk has been set on well casing, the nozzle of sleeve pipe pitching sliding sleeve is corresponding with rupture disk, the right-hand member of final section sleeve pipe pitching sliding sleeve is corresponding with last rupture disk on well casing, be provided with solid propellant in last rupture disk, make the solid propellant detonation in last rupture disk pressure break hole on well casing by the ground water pressure generation, wash out the jam on screen casing, form the loop that high pressure adds sand water, the high pressure on ground adds sand water and first from last sleeve pipe pitching sliding sleeve to the first sleeve pipe pitching sliding sleeve pitching successively, carries out fracturing, until complete the pressing crack construction of all intervals, realized the far-end pressure break, pressure break length and fracturing effect have effectively been improved, optimized construction process, reduced maintenance cost, reached the purpose of well production increment.Use this instrument can reach the width generation capacity of 150 meters, oil and gas flow is by long, and seepage area is large, and recovery ratio is high.The utlity model has reasonable in design, simple in structure, pressure break efficiency advantages of higher, can promote the use of on oil field.
The accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the structural representation of last rupture disk 9 in Fig. 1.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further described, but the utility model is not limited to these embodiment.
The well cementing casing pipe sliding sleeve separate stratum fracfturing instrument that 22 joint sleeve pipe pitching sliding sleeves and other component form of take is example, and its structure is as follows:
In Fig. 1,2, the well cementing casing pipe sliding sleeve separate stratum fracfturing instrument of the present embodiment connects and forms by adding sandpipe post 1, packer 2, bend pipe 3, the first sleeve pipe pitching sliding sleeve 4, oil pipe 5, the second sleeve pipe pitching sliding sleeve the 6, the 22 sleeve pipe pitching sliding sleeve 7, float shoe 8, rupture disk 9.
Be equipped with and add sandpipe post 1 in the vertical section of the interior left end of well casing 10, the lower end that adds sandpipe post 1 is connected with packer 2 with being threaded connection, packer 2 lower ends connect with first segment sleeve pipe pitching sliding sleeve left end by bend pipe 3, the right-hand member of first set pipe joint pitching sliding sleeve is from left to right used oil pipe 5 and the second sleeve pipe pitching sliding sleeve 6 successively, until the 22 sleeve pipe pitching sliding sleeve links, casing joint pitching sliding sleeve connects with oil pipe 5 with adjacent casing joint pitching sliding sleeve, the structure of every joint sleeve pipe pitching sliding sleeve is identical, sleeve pipe pitching sliding sleeve is the commodity of selling on market, by Canadian Trican company, sold, name of product: BPS (Burst Port System)
tM, the right-hand member of the 22 sleeve pipe pitching sliding sleeve 7 connects with float shoe 8 by screw thread with oil pipe 5, and float shoe 8 play the guiding role when the utility model is gone into the well.
According to the position of geologic information oil reservoir, rupture disk 9 is installed on well casing 10, each rupture disk 9 is corresponding with the nozzle of sleeve pipe pitching sliding sleeve, and the rupture disk 9 of the present embodiment is connected and formed by screen casing 9-1 and jam 9-2.Screen casing 9-1 length is 1 meter, the concrete length of screen casing 9-1 should be determined according to the concrete thickness of oil reservoir, screen casing 9-1 tube wall footpath upwards is processed with 2 circle pressure break holes, every circle is processed with 3 pressure break holes, be processed with altogether 6 pressure break holes, the pressure break hole of different axial lengths is staggered, and the aperture in pressure break hole is 30mm, the pressure break hole is just in time corresponding with the nozzle of sleeve pipe pitching sliding sleeve, and the jam that thickness is 10mm is installed in the pressure break hole.The high pressure on ground adds sand water and enters in sleeve pipe pitching sliding sleeve, from the nozzle ejection, washes out the jam 9-2 the pressure break hole, enters into oil reservoir, by formation fracturing.The screen casing 9-1 length of last rupture disk 9 is 1 meter, screen casing 9-1 radially is processed with 2 circle pressure break holes, every circle is processed with 3 pressure break holes, be processed with altogether 6 pressure break holes, the pressure break hole of different axial lengths is staggered, the aperture in pressure break hole is 30mm, solid propellant 9-3 is installed in the pressure break hole, the external surface of solid propellant 9-3 is equipped with the jam that thickness is 10mm, under the pressure of water under high pressure, solid propellant 9-3 is detonated, and washes out jam 9-2, by the formation fracturing outside well casing 10, and form the loop that high pressure adds sand water.
After the utility model is gone into the well and is installed, make the solid propellant 9-3 detonation in the pressure break hole of screen casing 9-1 of last rupture disk 9 on well casing 10 by the ground water pressure generation, wash out the jam on screen casing 9-1, form the loop that high pressure adds sand water, the high pressure on ground adds sand water and first from the 22 sleeve pipe pitching sliding sleeve 7 to first sleeve pipe pitching sliding sleeves 4 pitching successively, carries out fracturing, until complete the pressing crack construction of all intervals.
The well cementing casing pipe sliding sleeve separate stratum fracfturing instrument that 22 joint sleeve pipe pitching sliding sleeves and other component form of take is example, and its structure is as follows:
The well cementing casing pipe sliding sleeve separate stratum fracfturing instrument that 22 joint sleeve pipe pitching sliding sleeves and other component form of take is example, and its structure is as follows:
The well cementing casing pipe sliding sleeve separate stratum fracfturing instrument that 30 joint sleeve pipe pitching sliding sleeves and other component form of take is example, and its structure is as follows:
In above embodiment 1～3, be equipped with and add sandpipe post 1 in the vertical section of the interior left end of well casing 10, the lower end that adds sandpipe post 1 is connected with packer 2 with being threaded connection, packer 2 lower ends connect with the first sleeve pipe pitching sliding sleeve 4 left ends by bend pipe 3, the right-hand member of the first sleeve pipe pitching sliding sleeve 4 is from left to right used oil pipe 5 and the second sleeve pipe pitching sliding sleeve 6 successively, until the 30 sleeve pipe pitching sliding sleeve links, casing joint pitching sliding sleeve connects with oil pipe 5 with adjacent casing joint pitching sliding sleeve, the structure of every joint sleeve pipe pitching sliding sleeve is identical, the right-hand member of the 30 sleeve pipe pitching sliding sleeve connects with float shoe 8 by screw thread with oil pipe 5.Rupture disk 9 is installed on well casing 10, and rupture disk 9 is corresponding with the nozzle of sleeve pipe pitching sliding sleeve, and the structure of rupture disk 9 is identical with corresponding embodiment.The structure of last rupture disk 9 of the installation on the corresponding well casing 10 of the 30 sleeve pipe pitching sliding sleeve right-hand member is identical with corresponding embodiment.
The well cementing casing pipe sliding sleeve separate stratum fracfturing instrument that 36 joint sleeve pipe pitching sliding sleeves and other component form of take is example, and its structure is as follows:
In above embodiment 1～3, be equipped with and add sandpipe post 1 in the vertical section of the interior left end of well casing 10, the lower end that adds sandpipe post 1 is connected with packer 2 with being threaded connection, packer 2 lower ends connect with the first sleeve pipe pitching sliding sleeve 4 left ends by bend pipe 3, the right-hand member of the first sleeve pipe pitching sliding sleeve 4 is from left to right used oil pipe 5 and the second sleeve pipe pitching sliding sleeve 6 successively, until the 36 sleeve pipe pitching sliding sleeve links, casing joint pitching sliding sleeve connects with oil pipe 5 with adjacent casing joint pitching sliding sleeve, the structure of every joint sleeve pipe pitching sliding sleeve is identical, the right-hand member of the 36 sleeve pipe pitching sliding sleeve connects with float shoe 8 by screw thread with oil pipe 5.Rupture disk 9 is installed on well casing 10, and rupture disk 9 is corresponding with the nozzle of sleeve pipe pitching sliding sleeve, and the structure of rupture disk 9 is identical with corresponding embodiment.The structure of last rupture disk 9 of the installation on the corresponding well casing 10 of the 36 sleeve pipe pitching sliding sleeve right-hand member is identical with corresponding embodiment.
Claims (3)
1. a well cementing casing pipe sliding sleeve separate stratum fracfturing instrument, it is characterized in that: be provided with rupture disk (9) on the different length of well casing (10), vertical section in well casing (10) is provided with and adds sandpipe post (1), the lower end that adds sandpipe post (1) is provided with packer (2), the bend pipe for lower end (3) of packer (2) connects with 22～36 joint sleeve pipe pitching sliding sleeves, casing joint pitching sliding sleeve and adjacent casing joint pitching for sliding sleeve oil pipe (5) connect, every joint sleeve pipe pitching sliding sleeve is corresponding with the rupture disk (9) on well casing (10), the right-hand member of final section sleeve pipe pitching sliding sleeve connects with float shoe (8) by oil pipe (5).
2. well cementing casing pipe sliding sleeve separate stratum fracfturing instrument according to claim 1, it is characterized in that described rupture disk (9) is: screen casing (9-1) radially every meter at least be processed with 2 circles totally 6～30 pressure break holes, one circle pressure break hole and an adjacent circle pressure break hole are staggered, and are provided with jam (9-2) on the pressure break hole; Last rupture disk (9) on the corresponding well casing (10) of final section sleeve pipe pitching sliding sleeve right-hand member is: screen casing (9-1) radially every meter at least be processed with 2 circles totally 6～30 pressure break holes, one circle pressure break hole and an adjacent circle pressure break hole are staggered, be provided with solid propellant (9-3) in the pressure break hole, be provided with jam (9-2) on the external surface of solid propellant (9-3).
3. well cementing casing pipe sliding sleeve separate stratum fracfturing instrument according to claim 1, the length that it is characterized in that described screen casing (9-1) is 1～20 meter, and the aperture in pressure break hole is 10～30mm, and the thickness of the jam (9-2) arranged in the pressure break hole is 3～10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320379073 CN203347766U (en) | 2013-06-28 | 2013-06-28 | Sliding sleeve layering fracturing tool of well cementation sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320379073 CN203347766U (en) | 2013-06-28 | 2013-06-28 | Sliding sleeve layering fracturing tool of well cementation sleeve |
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| CN203347766U true CN203347766U (en) | 2013-12-18 |
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| CN 201320379073 Expired - Fee Related CN203347766U (en) | 2013-06-28 | 2013-06-28 | Sliding sleeve layering fracturing tool of well cementation sleeve |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818971A (en) * | 2015-03-10 | 2015-08-05 | 中国海洋石油总公司 | Offshore viscous oil time-divided and segmented heat injection oil extraction pipe string of horizontal wells and method thereof |
| CN105888638A (en) * | 2014-12-23 | 2016-08-24 | 陈爱民 | Timing sliding sleeve fracturing pipe column |
| CN105986797A (en) * | 2015-02-13 | 2016-10-05 | 中国石油天然气股份有限公司 | Staged fracturing method for horizontal well |
| CN106978999A (en) * | 2017-04-18 | 2017-07-25 | 山西晋城无烟煤矿业集团有限责任公司 | Ball-throwing type high energy gas fracturing device |
| CN109630059A (en) * | 2014-08-13 | 2019-04-16 | 地球动力学公司 | Pit shaft plug shielding system and method |
| CN110374552A (en) * | 2019-07-18 | 2019-10-25 | 中国石油天然气股份有限公司 | Large-drift-diameter toe end sliding sleeve and method for establishing channel between shaft casing and stratum |
| CN115822530A (en) * | 2022-11-30 | 2023-03-21 | 中国石油天然气集团有限公司 | Long horizontal section under-pressure drill rod transmission well-flushing and perforation integrated tool and method |
-
2013
- 2013-06-28 CN CN 201320379073 patent/CN203347766U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630059A (en) * | 2014-08-13 | 2019-04-16 | 地球动力学公司 | Pit shaft plug shielding system and method |
| CN109630059B (en) * | 2014-08-13 | 2021-07-09 | 地球动力学公司 | Wellbore plug isolation system and method |
| CN105888638A (en) * | 2014-12-23 | 2016-08-24 | 陈爱民 | Timing sliding sleeve fracturing pipe column |
| CN105986797A (en) * | 2015-02-13 | 2016-10-05 | 中国石油天然气股份有限公司 | Staged fracturing method for horizontal well |
| CN105986797B (en) * | 2015-02-13 | 2018-12-25 | 中国石油天然气股份有限公司 | Staged fracturing method for horizontal well |
| CN104818971A (en) * | 2015-03-10 | 2015-08-05 | 中国海洋石油总公司 | Offshore viscous oil time-divided and segmented heat injection oil extraction pipe string of horizontal wells and method thereof |
| CN104818971B (en) * | 2015-03-10 | 2017-12-15 | 中国海洋石油总公司 | A kind of Offshore Heavy Oil Field horizontal well time sharing segment heat injection flow string and its method |
| CN106978999A (en) * | 2017-04-18 | 2017-07-25 | 山西晋城无烟煤矿业集团有限责任公司 | Ball-throwing type high energy gas fracturing device |
| CN110374552A (en) * | 2019-07-18 | 2019-10-25 | 中国石油天然气股份有限公司 | Large-drift-diameter toe end sliding sleeve and method for establishing channel between shaft casing and stratum |
| CN115822530A (en) * | 2022-11-30 | 2023-03-21 | 中国石油天然气集团有限公司 | Long horizontal section under-pressure drill rod transmission well-flushing and perforation integrated tool and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |
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| CX01 | Expiry of patent term | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: On July 14, 2023, the expiration and termination of 39 volumes and 2802 issues of the patent Number: 28-02 Volume: 39 |
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| CU01 | Correction of utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |