CN210141115U - Bypass flow guide sieve tube - Google Patents
Bypass flow guide sieve tube Download PDFInfo
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- CN210141115U CN210141115U CN201920310344.0U CN201920310344U CN210141115U CN 210141115 U CN210141115 U CN 210141115U CN 201920310344 U CN201920310344 U CN 201920310344U CN 210141115 U CN210141115 U CN 210141115U
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- sealing
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Abstract
The utility model belongs to the technical field of oilfield development and production, and relates to a bypass flow guide sieve tube applied to one-time multilayer gravel packing sand control well completion operation, which comprises a tieback sealing cylinder, a flat key, a bypass coupling, a base tube, a sealing ring, an upper tieback sealing joint, a sieve assembly and a lower tieback sealing joint; the utility model discloses bypass water conservancy diversion sieve intraduct has big bypass water conservancy diversion passageway, connects the needs of layering exploitation when satisfying the circulation channel of packing operation and producing oil production in multilayer gravel packing sand control tubular column once, can simplify whole set of gravel packing tubular column, need not to add special kit simultaneously, and the erection joint is easy and simple to handle, can show and improve whole operation ageing.
Description
Technical Field
The utility model belongs to the technical field of oil field development production, in particular to be applied to bypass water conservancy diversion screen pipe of once multilayer gravel packing sand control well completion operation.
Background
The offshore oil-gas reservoir is found to be more loose or looser at sea in China, and most oil-gas reservoirs have sand production. The sand production can wear and erode surface equipment and downhole tools (e.g., pumps, separators, heaters, tubing, etc.), bridge or plug the wellbore, reduce or force the production of the oil and gas well to stop. The offshore oil and gas field has high development cost, limited platform service life and high requirement on the productivity of a single well, and sand prevention is one of the key factors for ensuring the long-term high and stable yield of the oil and gas well.
The gravel filling and sand control is to form an artificial sand filtering screen with a certain thickness in an oil layer, namely an artificial sand bridge, so that the annulus between a filling stratum and a sieve tube can block the stratum sand, the washing of the sieve tube is reduced, the service life of the sieve tube is prolonged, and the purpose of preventing and controlling the sand of an oil well is realized. The existing once-multilayer gravel packing sand prevention technology using the conventional sieve tube has the disadvantages of complex sand prevention pipe column, high operation risk, high labor intensity, lower well mouth connection and pressure test operation efficiency of an outer layer pipe column and a service pipe column, difficulty in dismounting and mounting after a problem occurs in a field, higher time consumption of the whole operation, high cost for later-stage well completion and the like, and does not need a secondary fracturing sand prevention technology for later-stage overhaul or fixed pipe columns.
Disclosure of Invention
The utility model discloses a solve the technical problem who exists in the once multilayer gravel packing sand control operation of present oil field development, provide one kind and need not to increase extra professional equipment, connect easy and simple to handle, the reliable quick connect formula bypass water conservancy diversion screen pipe of stable performance.
The utility model aims at realizing through the following technical scheme:
a bypass water conservancy diversion screen pipe, includes the parent tube, its characterized in that: the top end of the base pipe is connected with a tie-back 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 tie-back sealing joint, and the lower end of the screen assembly is connected with a lower tie-back sealing joint; an interlayer channel is arranged between the fastening mechanism and the tie-back sealing cylinder; interlayer channels are arranged between the upper tieback sealing joint and the base pipe and between 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 tie-back sealing cylinder is symmetrically provided with 2 through holes; the outside of the bypass coupling is in a spline shaft shape with 2 teeth symmetrically distributed, and the outer surfaces of the 2 teeth are respectively provided with 1 key groove; after the key groove is aligned with the through hole in the tie-back sealing barrel, the bypass coupling and the tie-back sealing barrel are fixed through the flat key so as to transfer circumferential torque and axial load, and the flat key and the tie-back sealing barrel are connected into a whole in a welding mode so as to prevent the flat key from radially falling out; the fastening mechanism and the tie-back sealing cylinder are provided with an interlayer channel after being assembled.
Spline sleeves with 3 teeth uniformly arranged in the circumferential direction are arranged inside the upper tie-back sealing joint and the lower tie-back sealing joint, welding through holes are reserved in the spline sleeves of the upper tie-back sealing joint and the lower tie-back sealing joint along the radial direction, and the upper tie-back sealing joint and the lower tie-back sealing joint are fixedly connected with the sieve tube base tube in a welding mode; the upper tie-back sealing joint and the lower tie-back sealing joint are welded and fixed with the base pipe and then are provided with interlayer channels.
The outer surface of the upper tie-back sealing joint close to the upper end surface is provided with a sealing ring, and sealing is realized by matching the sealing ring with a tie-back sealing cylinder; the outer surface of the lower tie-back sealing joint close to the lower end surface is provided with a sealing ring, and the sealing ring is matched with a tie-back sealing cylinder of the other bypass diversion screen pipe to realize sealing.
The screen assembly is internally provided with a support formed by a plurality of ribs which are uniformly arranged along the circumferential direction, and an interlayer channel is arranged between the screen assembly and the base pipe through the rib support.
Compared with the prior art, the utility model discloses a beneficial effect that technical scheme brought is:
in the primary multilayer gravel packing sand prevention operation, liquid can flow through the inner interlayers of the 2 bypass diversion sieve pipes which are mutually connected, and the circulating channel of the packing operation and the requirement of the zonal exploitation during the oil extraction production can be realized through the sliding sleeve which is arranged on the matching of the lowest part; by adopting the bypass diversion sieve tube and matching with a corresponding service pipe column, the whole gravel packing pipe column can be simplified; on the other hand, a special matched tool is not required to be additionally arranged in the connecting process of the bypass diversion sieve tube, the operation is convenient, the safety and the reliability are realized, and the overall operation timeliness is improved.
Drawings
Fig. 1 is a schematic structural view of the bypass diversion screen pipe of the present invention.
Fig. 2 is a schematic view of the construction of a tieback seal cartridge.
FIG. 3 is a schematic diagram of the construction of a bypass collar.
Fig. 4 is a schematic sectional view taken along line a-a in fig. 1.
Fig. 5 is a schematic cross-sectional view at B-B in fig. 1.
Detailed Description
In order to further understand the contents of the present invention, the present invention will be further explained with reference to the attached drawings.
Referring to fig. 1, the utility model provides a bypass water conservancy diversion screen pipe, including base pipe 101, base pipe 101 both ends all set up the screw thread, and its upper end is connected with tieback sealing cylinder 103 through fastening device 201, the outside cover of base pipe 101 is equipped with screen cloth assembly 104, screen cloth assembly 104 upper end is connected with tieback sealing joint 301, and the lower extreme is connected with tieback sealing joint 302 down.
Referring to fig. 1 to 4, the cylinder wall of the tieback seal 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 outside of the bypass coupling 202 is in a spline shaft shape with 2 teeth symmetrically distributed, and the outer surfaces of the 2 teeth are respectively provided with 1 key groove 204; after the key groove 204 is aligned with the through hole 105 on the tie-back sealing cylinder 103, the bypass coupling 202 and the tie-back sealing cylinder 103 are fixed through the flat key 203 to transmit circumferential torque and axial load, the flat key 203 and the tie-back sealing cylinder 103 are connected into a whole in a welding mode to prevent the flat key 203 from radially falling out, and the fastening mechanism 201 and the tie-back sealing cylinder 103 are provided with an interlayer channel 401 after being assembled; the inner wall of the bypass coupling 202 is provided with an upper group of threads and a lower group of threads, and the threads on the lower part of the bypass coupling are in threaded connection with the top of the base pipe 101.
Referring to fig. 1 and 5, spline sleeves with 3 teeth uniformly arranged in the circumferential direction are arranged inside the upper tie-back seal joint 301 and the lower tie-back seal joint 302, welding through holes 305 are arranged in the radial direction on the spline sleeve teeth of the upper tie-back seal joint 301 and the lower tie-back seal joint 302, and the upper tie-back seal joint 301 and the lower tie-back seal joint 302 are fixedly connected with the base pipe 101 in a welding manner; the upper tieback seal joint 301 and the lower tieback seal joint 302 are welded and fixed with the base pipe 101 and then are provided with interlayer channels 303. The outer surface of the upper tie-back sealing joint 301 close to the upper end surface is provided with a sealing ring 304, and sealing is realized by matching the sealing ring 304 with the tie-back sealing cylinder 103; the outer surface of the lower tie-back sealing joint 302 close to the lower end surface is provided with a sealing ring 304, and the sealing is realized by the matching of the sealing ring 304 and the tie-back 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 tie-back seal joint 301 and a lower tie-back seal joint 302, a support formed by a plurality of ribs uniformly arranged along the circumferential direction is arranged inside the screen assembly 104, and a sandwich channel 402 is formed between the screen assembly 104 and the base pipe 101 through the rib support.
In this embodiment, when a plurality of bypass diversion screen pipes are sequentially connected, a standard elevator is used to clamp the shaft neck of the upper tie-back sealing joint 301 to lift the whole bypass diversion screen pipe, the tie-back sealing joint 302 is axially inserted into the tie-back sealing sleeve 103 of another bypass diversion screen pipe to realize outer layer sealing connection, and simultaneously the lower thread of the base pipe 101 is connected and sealed with the inner thread of the bypass coupling 202, so as to realize the connection between 2 bypass diversion screen pipes.
In the filling sand control operation, sand carrying liquid is pumped into a shaft through a sand control pump, when the sand flows through a sieve tube, sand is filtered by a sieve assembly 104 and is left outside a bypass flow guide sieve tube, the liquid flows through the sieve assembly 104 to enter an interlayer channel in the bypass flow guide sieve tube, sequentially flows through an interlayer channel 401 formed after a fastening mechanism 201 and a tie-back sealing cylinder 103 are assembled, an interlayer channel 303 formed after an upper tie-back sealing joint 301 is welded and fixed with a base tube 101, an interlayer channel 402 formed after the sieve assembly 104 and the base tube 101 and an interlayer channel 303 formed after a lower tie-back sealing joint 302 is welded and fixed with the base tube 101 finally flow out from a lower sliding sleeve liquid discharge hole of a sand control pipe column and returns to a well head through a matched filling sand control service pipe column. When oil extraction production operation is carried out, the lower sliding sleeve of the sand control pipe column is opened, oil and water flow into the interlayer channels in the bypass flow guide sieve pipes from the sieve assembly 104 of each bypass flow guide sieve pipe and enter the oil extraction pipe column through the lower sliding sleeve liquid discharge holes of the sand control pipe column.
Although the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive. Without departing from the spirit of the invention and the scope of the appended claims, those skilled in the art can make many changes and modifications to the invention as described herein.
Claims (5)
1. A bypass flow screen, includes base pipe (101), its characterized in that: the upper end of the base pipe (101) is connected with a tie-back 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 tie-back sealing joint (301), and the lower end of the screen assembly is connected with a lower tie-back 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 tie-back sealing joint (301), the lower tie-back 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).
2. The bypass flow screen as recited in claim 1 wherein: the wall of the tie-back 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 the outer surfaces of the 2 teeth are respectively provided with 1 key groove (204); after the key groove (204) is aligned with the through hole (105) in the tie-back sealing cylinder (103), the bypass coupling (202) and the tie-back sealing cylinder (103) are fixed through the flat key (203) to transmit circumferential torque and axial load, and the flat key (203) and the tie-back sealing cylinder (103) are connected into a whole in a welding mode to prevent the flat key (203) from radially falling out; 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 an upper thread and a lower thread, and the lower thread of the bypass coupling is in threaded connection with the upper end of the base pipe (101).
3. The bypass flow screen as recited in claim 1 wherein: spline sleeves with 3 teeth uniformly arranged in the circumferential direction are arranged inside the upper tie-back seal joint (301) and the lower tie-back seal joint (302), welding through holes (305) are radially formed in the spline sleeve teeth of the upper tie-back seal joint (301) and the lower tie-back seal joint (302), and the upper tie-back seal joint (301) and the lower tie-back seal joint (302) are fixedly connected with the base pipe (101) in a welding mode; and the upper tie-back sealing joint (301), the lower tie-back sealing joint (302) and the base pipe (101) are welded and fixed and then are provided with a third interlayer channel (303).
4. The bypass flow screen as recited in 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 the matching of the sealing ring (304) and the tie-back sealing cylinder (103); and a sealing ring (304) is arranged on the outer surface of the lower tie-back sealing joint (302) close to the lower end face, and the sealing is realized by the matching of the sealing ring (304) and a tie-back sealing cylinder (103) of another bypass flow guide sieve tube.
5. The bypass flow screen as recited in claim 1 wherein: the screen assembly (104) is internally provided with a bracket formed by a plurality of ribs 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 |
|---|---|---|---|
| CN201920310344.0U CN210141115U (en) | 2019-03-12 | 2019-03-12 | Bypass flow guide sieve tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920310344.0U CN210141115U (en) | 2019-03-12 | 2019-03-12 | Bypass flow guide sieve tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210141115U true CN210141115U (en) | 2020-03-13 |
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ID=69732828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920310344.0U Expired - Fee Related CN210141115U (en) | 2019-03-12 | 2019-03-12 | Bypass flow guide sieve tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210141115U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763795A (en) * | 2019-03-12 | 2019-05-17 | 中国海洋石油集团有限公司 | A kind of bypass water conservancy diversion screen casing |
-
2019
- 2019-03-12 CN CN201920310344.0U patent/CN210141115U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763795A (en) * | 2019-03-12 | 2019-05-17 | 中国海洋石油集团有限公司 | A kind of bypass water conservancy diversion screen casing |
| CN109763795B (en) * | 2019-03-12 | 2024-03-26 | 中国海洋石油集团有限公司 | Bypass diversion screen pipe |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200313 Termination date: 20210312 |