CN109763795B - Bypass diversion screen pipe - Google Patents
Bypass diversion screen pipe Download PDFInfo
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- CN109763795B CN109763795B CN201910187931.XA CN201910187931A CN109763795B CN 109763795 B CN109763795 B CN 109763795B CN 201910187931 A CN201910187931 A CN 201910187931A CN 109763795 B CN109763795 B CN 109763795B
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- tieback
- sealing joint
- bypass
- tieback sealing
- sealing
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- 238000007789 sealing Methods 0.000 claims abstract description 97
- 230000008878 coupling Effects 0.000 claims abstract description 16
- 238000010168 coupling process Methods 0.000 claims abstract description 16
- 238000005859 coupling reaction Methods 0.000 claims abstract description 16
- 239000011229 interlayer Substances 0.000 claims description 20
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 8
- 239000004576 sand Substances 0.000 abstract description 24
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000012856 packing Methods 0.000 abstract description 9
- 230000002265 prevention Effects 0.000 abstract description 8
- 238000011161 development Methods 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract 1
- 230000018109 developmental process Effects 0.000 abstract 1
- 230000004888 barrier function Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The invention belongs to the technical field of oilfield development and production, and relates to a bypass diversion screen pipe applied to primary multilayer gravel packing sand prevention completion operation, wherein the bypass diversion screen pipe comprises a tieback sealing cylinder, a flat key, a bypass coupling, a base pipe, a sealing ring, an upper tieback sealing joint, a screen assembly and a lower tieback sealing joint; the bypass diversion screen pipe is internally provided with the large bypass diversion channel, is connected in the primary multilayer gravel packing sand prevention pipe column to meet the requirements of the circulation channel of packing operation and layer-by-layer exploitation in oil extraction production, can simplify the whole set of gravel packing pipe column, does not need to add special matched tools, is simple and convenient to install and connect, and can remarkably improve the ageing of the whole operation.
Description
Technical Field
The invention belongs to the technical field of oilfield development and production, and particularly relates to a bypass diversion screen pipe applied to primary multilayer gravel pack sand prevention completion operation.
Background
Loose or more loose oil and gas reservoirs are found on the sea in China, and most oil and gas reservoirs have sand production phenomenon. Sand production can wear out, erode surface equipment and downhole tools (e.g., pumps, separators, heaters, tubing, etc.), bridge or plug the wellbore, reduce oil and gas well production or force the oil and gas well to shut in. The offshore oil and gas field has high development cost and limited platform life, has high requirement on single well productivity, and sand prevention is one of key factors for ensuring long-term high and stable production of oil and gas wells.
The gravel packing sand prevention is to form an artificial sand filtering barrier with a certain thickness in an oil layer, namely an artificial sand bridge, so that an annulus between a packed stratum and a screen pipe forms a barrier to stratum sand, the scouring of the screen pipe is reduced, the service life of the screen pipe is prolonged, and the purpose of sand prevention and sand control of an oil well is realized. The existing sand control pipe column adopting the conventional screen pipe primary multilayer gravel packing sand control technology is complex, high in operation risk and high in labor intensity, the wellhead connection of the outer pipe column and the service pipe column is low in pressure test operation efficiency, the outer pipe column and the service pipe column are difficult to disassemble and assemble after problems occur on site, the whole operation is high in time consumption, the cost of later completion and the like is high, and the secondary fracturing sand control technology aiming at the later overhaul or the fixed pipe column is avoided.
Disclosure of Invention
The invention provides a quick-connection bypass guide screen pipe which is simple and convenient to connect and operate and stable and reliable in performance, and solves the technical problems existing in the prior sand prevention operation of primary multilayer gravel packing in oilfield development.
The invention aims at realizing the following technical scheme:
a bypass screen, comprising a base pipe, characterized in that: the top end of the base pipe is connected with the tieback sealing cylinder through a fastening mechanism, a screen assembly is sleeved outside the base pipe, the upper end of the screen assembly is connected with an upper tieback sealing joint, and the lower end of the screen assembly is connected with a lower tieback sealing joint; an interlayer channel is arranged between the fastening mechanism and the tieback sealing cylinder; an interlayer channel is arranged between the upper tieback sealing joint and the lower tieback sealing joint and the base pipe; an interlayer channel is arranged between the screen assembly and the base pipe.
The fastening mechanism consists of a bypass coupling and a flat key; the wall of the tieback sealing cylinder is symmetrically provided with 2 through holes; the outer part of the bypass coupling is in a spline shaft shape with 2 teeth symmetrically distributed, and 1 key slot is respectively arranged on the outer surfaces of the 2 teeth; after the key groove is aligned with the through hole on the tieback sealing cylinder, the bypass coupling and the tieback sealing cylinder are fixed through the flat key to transfer circumferential torque and axial load, and the flat key and the tieback sealing cylinder are connected into a whole in a welding mode to prevent the flat key from falling out radially; the fastening mechanism and the tieback sealing cylinder are provided with an interlayer channel after being assembled.
The inside of the upper tieback sealing joint and the lower tieback sealing joint are spline sleeves with 3 teeth uniformly distributed along the circumferential direction, welding through holes are reserved in the spline sleeves of the upper tieback sealing joint and the lower tieback sealing joint along the radial direction, and the upper tieback sealing joint and the lower tieback sealing joint are fixedly connected with the screen pipe base pipe in a welding mode; and the upper tieback sealing joint and the lower tieback sealing joint are welded and fixed with the base pipe and are provided with interlayer channels.
The outer surface of the upper tie-back sealing joint, which is close to the upper end surface, is provided with a sealing ring, and the sealing is realized by matching the sealing ring with a tie-back sealing cylinder; the outer surface of the lower tieback sealing joint, which is close to the lower end surface, is provided with a sealing ring, and the sealing is realized by matching the sealing ring with a tieback sealing cylinder of another bypass guide sieve tube.
The inside support that is formed by a plurality of ribs that evenly set up along circumference that has of screen assembly makes screen assembly with the intermediate layer passageway has between the base pipe through the rib support.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
in the primary multilayer gravel packing sand prevention operation, liquid can flow through the interlayer inside the 2 bypass guide sieve tubes which are connected with each other, and the circulation channel of the packing operation and the requirement of exploitation during oil exploitation production can be realized through a sliding sleeve which is arranged at the lowest part in a matched manner; by adopting the bypass diversion screen pipe and matching with a corresponding service pipe column, the whole set of gravel filling pipe column can be simplified; on the other hand, the bypass guide screen pipe connecting process does not need to be additionally provided with special matched tools, is convenient to operate, is safe and reliable, and improves the overall operation timeliness.
Drawings
FIG. 1 is a schematic view of the bypass screen of the present invention.
Fig. 2 is a schematic structural view of the tie-back seal cartridge.
FIG. 3 is a schematic structural view of a bypass collar.
Fig. 4 is a schematic cross-sectional view of the structure at A-A in fig. 1.
Fig. 5 is a schematic cross-sectional structure at B-B in fig. 1.
Detailed Description
The invention will be further described with reference to the accompanying drawings in order to further understand the invention.
Referring to fig. 1, the invention provides a bypass guide screen pipe, which comprises a base pipe 101, wherein threads are arranged at two ends of the base pipe 101, the upper end of the base pipe is connected with a tieback sealing cylinder 103 through a fastening mechanism 201, a screen assembly 104 is sleeved outside the base pipe 101, an upper tieback sealing joint 301 is connected to the upper end of the screen assembly 104, and a lower tieback sealing joint 302 is connected to the lower end of the screen assembly 104.
Referring to fig. 1-4, the wall of the tieback sealing cylinder 103 is symmetrically provided with 2 through holes 105; the fastening mechanism 201 is composed of a bypass coupling 202 and a flat key 203; the outer part of the bypass coupling 202 is in a spline shaft shape with 2 teeth symmetrically distributed, and 1 key groove 204 is respectively arranged on the outer surfaces of the 2 teeth; after the key groove 204 is aligned with the through hole 105 on the tieback sealing cylinder 103, the bypass coupling 202 and the tieback sealing cylinder 103 are fixed through the flat key 203 to transmit circumferential torque and axial load, the flat key 203 and the tieback sealing cylinder 103 are connected into a whole in a welding mode to prevent the flat key 203 from falling out radially, and the fastening mechanism 201 and the tieback sealing cylinder 103 are provided with an interlayer channel 401 after being assembled; the inner wall of the bypass coupling 202 is provided with 2 groups of threads, and the lower threads of the bypass coupling are connected with the threads on the top of the base pipe 101.
Referring to fig. 1 and 5, spline sleeves with 3 teeth uniformly arranged along the circumferential direction are arranged inside the upper tieback sealing joint 301 and the lower tieback sealing joint 302, and welding through holes 305 are formed in the spline sleeve teeth of the upper tieback sealing joint 301 and the lower tieback sealing joint 302 along the radial direction, so that the upper tieback sealing joint 301 and the lower tieback sealing joint 302 are fixedly connected with the base pipe 101 in a welding manner; the upper tieback sealing joint 301, the lower tieback sealing joint 302 and the base pipe 101 are welded together and then have a sandwich channel 303. A sealing ring 304 is arranged on the outer surface of the upper tie-back sealing joint 301 close to the upper end surface, and sealing is realized by matching the sealing ring 304 with the tie-back sealing cylinder 103; the outer surface of the lower tieback sealing joint 302, which is close to the lower end surface, is provided with a sealing ring 304, and the sealing is realized by matching the sealing ring 304 with the tieback sealing cylinder 103 of the other bypass diversion screen pipe.
Referring to fig. 1, two ends of the screen assembly 104 are respectively connected with an upper tieback sealing joint 301 and a lower tieback sealing joint 302, a bracket formed by a plurality of ribs uniformly arranged along the circumferential direction is arranged inside the screen assembly 104, and an interlayer channel 402 is formed between the screen assembly 104 and the base pipe 101 through the rib bracket.
In this embodiment, when a plurality of bypass guide screens are connected to each other in sequence, a standard elevator is adopted to hoist the whole bypass guide screen at the journal of the upper tieback sealing joint 301, the tieback sealing joint 302 is axially inserted into the tieback sealing cylinder 103 of another bypass guide screen to realize outer sealing connection, and meanwhile, the lower thread of the base pipe 101 is connected and sealed with the internal thread of the bypass coupling 202, so as to realize connection between 2 bypass guide screens.
In the filling sand control operation, sand-carrying fluid is pumped into a shaft through a sand control pump, sand grains are filtered by a screen assembly 104 and remain outside a bypass guide screen when flowing through the screen, the fluid flows through the screen assembly 104 to enter an interlayer channel in the bypass guide screen, sequentially flows through an interlayer channel 401 formed after the fastening mechanism 201 and the tie-back sealing cylinder 103 are assembled, an interlayer channel 303 formed after an upper tie-back sealing joint 301 and a base pipe 101 are welded and fixed, an interlayer channel 402 formed after the screen assembly 104 and the base pipe 101, and an interlayer channel 303 formed after a lower tie-back sealing joint 302 and the base pipe 101 are welded and fixed, finally flows out from a lower sliding sleeve drain hole of a sand control pipe column, and returns to a wellhead through a matched filling sand control service pipe column. When the oil extraction production operation is carried out, the lower sliding sleeve of the sand control pipe column is opened, oil water flows into the interlayer channel in the bypass guide screen pipe from the screen assembly 104 of each bypass guide screen pipe, and enters the oil extraction pipe column through the drain hole of the lower sliding sleeve of the sand control pipe column.
Although the invention has been described above in connection with the accompanying drawings, the invention is not limited to the specific embodiments described above, which are intended to be illustrative only, and not limiting. Many modifications may be made by one of ordinary skill in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims.
Claims (3)
1. A bypass screen comprising a base pipe (101), characterized in that: the upper end of the base pipe (101) is connected with the tieback sealing cylinder (103) through a fastening mechanism (201), a screen assembly (104) is sleeved outside the base pipe (101), the upper end of the screen assembly (104) is connected with an upper tieback sealing joint (301), and the lower end of the screen assembly is connected with a lower tieback sealing joint (302); a first interlayer channel (401) is arranged between the fastening mechanism (201) and the tieback sealing cylinder (103); a third interlayer channel (303) is arranged between the upper tieback sealing joint (301), the lower tieback sealing joint (302) and the base pipe (101); a second interlayer channel (402) is arranged between the screen assembly (104) and the base pipe (101), wherein:
the cylinder wall of the tieback sealing cylinder (103) is symmetrically provided with 2 through holes (105); the fastening mechanism (201) is composed of a bypass coupling (202) and a flat key (203); the outer part of the bypass coupling (202) is in a spline shaft shape with 2 teeth symmetrically distributed, and 1 key groove (204) is respectively arranged on the outer surfaces of the 2 teeth; after the key groove (204) is aligned with the through hole (105) on the tieback sealing cylinder (103), the bypass coupling (202) and the tieback sealing cylinder (103) are fixed through the flat key (203) to transmit circumferential torque and axial load, and the flat key (203) and the tieback sealing cylinder (103) are welded
Is connected into a whole to prevent the flat key (203) from falling out radially; the fastening mechanism (201) and the tieback sealing cylinder (103) are provided with a first interlayer channel (401) after being assembled; the inner wall of the bypass coupling (202) is provided with upper and lower 2 groups of threads, the lower threads of the bypass coupling are connected with the upper end threads of the base pipe (101), and the bypass coupling comprises the following components:
the inside of the upper tieback sealing joint (301) and the inside of the lower tieback sealing joint (302) are spline sleeves with 3 teeth uniformly distributed along the circumferential direction, welding through holes (305) are formed in the spline sleeve teeth of the upper tieback sealing joint (301) and the lower tieback sealing joint (302) along the radial direction, and the upper tieback sealing joint (301) and the lower tieback sealing joint (302) are fixedly connected with the base pipe (101) in a welding mode; the upper tieback sealing joint (301), the lower tieback sealing joint (302) and the base pipe (101) are welded and fixed, and then a third interlayer channel (303) is formed.
2. The bypass screen of claim 1, wherein: the outer surface of the upper tie-back sealing joint (301) close to the upper end face is provided with a sealing ring (304), and sealing is realized by matching the sealing ring (304) with the tie-back sealing cylinder (103); and a sealing ring (304) is arranged on the outer surface of the lower tieback sealing joint (302) close to the lower end surface, and the sealing is realized by matching the sealing ring (304) with a tieback sealing cylinder (103) of another bypass guide sieve tube.
3. The bypass screen of claim 1, wherein: the screen assembly (104) is internally provided with a bracket formed by a plurality of ribs which are uniformly arranged along the circumferential direction, and a second interlayer channel (402) is formed between the screen assembly (104) and the base pipe (101) through the rib bracket.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201910187931.XA CN109763795B (en) | 2019-03-12 | 2019-03-12 | Bypass diversion screen pipe |
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CN201910187931.XA CN109763795B (en) | 2019-03-12 | 2019-03-12 | Bypass diversion screen pipe |
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CN109763795A CN109763795A (en) | 2019-05-17 |
CN109763795B true CN109763795B (en) | 2024-03-26 |
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CN201910187931.XA Active CN109763795B (en) | 2019-03-12 | 2019-03-12 | Bypass diversion screen pipe |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110593825A (en) * | 2019-10-19 | 2019-12-20 | 海塔石油科技有限公司 | An erosion-resistant packing bypass screen for oil field development |
CN111980637B (en) * | 2020-09-15 | 2021-05-25 | 东营市正扬石油装备制造有限公司 | Erosion-resistant filling bypass sieve tube for oilfield exploitation |
CN111927408A (en) * | 2020-10-10 | 2020-11-13 | 东营市瑞丰石油技术发展有限责任公司 | Packing string and sand control completion method |
CN112761592A (en) * | 2021-01-26 | 2021-05-07 | 思达斯易能源技术(集团)有限公司 | Bypass screen pipe |
CN113969765A (en) * | 2021-09-06 | 2022-01-25 | 中海油能源发展股份有限公司 | Horizontal open hole gravel packing tool with standby channel and operation method thereof |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4754807A (en) * | 1986-04-29 | 1988-07-05 | Otis Engineering Corporation | Sand screen for production oil wells |
CN201318156Y (en) * | 2008-12-26 | 2009-09-30 | 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 | By-pass sand control screen pipe |
CN102134982A (en) * | 2011-02-11 | 2011-07-27 | 孔利生 | Multilayer gravel packing method and tool |
CN103628845A (en) * | 2013-09-16 | 2014-03-12 | 中国海洋石油总公司 | Novel stereo sand control screen |
WO2019032334A1 (en) * | 2017-08-08 | 2019-02-14 | Halliburton Energy Services, Inc. | Inflow control device bypass and bypass isolation system for gravel packing with shunted sand control screens |
CN210141115U (en) * | 2019-03-12 | 2020-03-13 | 中国海洋石油集团有限公司 | Bypass flow guide sieve tube |
-
2019
- 2019-03-12 CN CN201910187931.XA patent/CN109763795B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4754807A (en) * | 1986-04-29 | 1988-07-05 | Otis Engineering Corporation | Sand screen for production oil wells |
CN201318156Y (en) * | 2008-12-26 | 2009-09-30 | 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 | By-pass sand control screen pipe |
CN102134982A (en) * | 2011-02-11 | 2011-07-27 | 孔利生 | Multilayer gravel packing method and tool |
CN103628845A (en) * | 2013-09-16 | 2014-03-12 | 中国海洋石油总公司 | Novel stereo sand control screen |
WO2019032334A1 (en) * | 2017-08-08 | 2019-02-14 | Halliburton Energy Services, Inc. | Inflow control device bypass and bypass isolation system for gravel packing with shunted sand control screens |
CN210141115U (en) * | 2019-03-12 | 2020-03-13 | 中国海洋石油集团有限公司 | Bypass flow guide sieve tube |
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