CN105332677A - Cable direct-controlled water distribution system - Google Patents
Cable direct-controlled water distribution system Download PDFInfo
- Publication number
- CN105332677A CN105332677A CN201510751324.3A CN201510751324A CN105332677A CN 105332677 A CN105332677 A CN 105332677A CN 201510751324 A CN201510751324 A CN 201510751324A CN 105332677 A CN105332677 A CN 105332677A
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- China
- Prior art keywords
- cable
- well
- water distribution
- water
- wellhead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 238000002347 injection Methods 0.000 claims abstract description 51
- 239000007924 injection Substances 0.000 claims abstract description 51
- 238000011010 flushing procedure Methods 0.000 claims abstract description 20
- 230000001012 protector Effects 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000011521 glass Substances 0.000 claims description 14
- 210000002445 nipple Anatomy 0.000 claims description 14
- 238000012216 screening Methods 0.000 claims description 14
- 239000000919 ceramic Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 16
- 238000012544 monitoring process Methods 0.000 abstract description 8
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 238000007689 inspection Methods 0.000 abstract 2
- 238000011835 investigation Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011084 recovery Methods 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
Landscapes
- 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)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention relates to a cable direct-controlled water distribution system and mainly solves the problem an existing water distribution system has inabilities for underground automatic sealing inspection, flow testing, formation injection pressure monitoring and water adjustment of various sections. The system is characterized in that cable pass well-flushing packers (3) and underground hierarchical electric water distributors (5) are serially connected to a water injection string below a cable pass wellhead (2), a control cable is connected to a surface control device (1), the control cable is connected with the more than one cable pass well-flushing packer (3) and more than one underground hierarchical electric water distributor (5) through the cable pass wellhead (2), and the water injection string is coupled with a cable fixation protector (4). The system has the advantages of underground automatic sealing inspection, flow testing, formation injection pressure monitoring, and water adjustment of various sections.
Description
Technical field
The present invention relates to the flood pattern that field of oil field oil extraction water injection well is used, especially cable direct controlled type water distribution system.
Background technology
In field of oil field oil extraction, generally adopt separate water injection well tubing string for improving recovery ratio.Current separated-zone water infection oil field well casing cylindricality formula adopts packer to carry out the packing of cover inner tube layer section mostly, adopts eccentric injection mandrel to carry out the water distribution of individual layer section.Need before whole tubing string water distribution to test envelope test, could survey after testing involution lattice and adjust each layer water yield.Existing water distribution system can not test envelope, flow rate test, the monitoring of stratum injection pressure and each interval runoff investigation in down-hole automatically because reasons in structure exists, and affects the meticulous subdivision injection in oil field and stratified water amount control.
Summary of the invention
Envelope, flow rate test, the monitoring of stratum injection pressure and the problem of each interval runoff investigation can not be automatically tested in down-hole in order to solve existing water distribution system.The invention provides a kind of cable direct controlled type water distribution system.This cable direct controlled type water distribution system has down-hole and automatically tests envelope, flow rate test, the monitoring of stratum injection pressure and the feature of each interval runoff investigation.
Technical scheme of the present invention is: this cable direct controlled type water distribution system comprises ground control unit, crosses cable wellhead, crosses cable well packer capable of flushing well, cable fixing protector and the automatically controlled injection well downhole flow regulator of laminated distributor under well.Cross under cable wellhead and water injection string was serially connected with the automatically controlled injection well downhole flow regulator of cable well packer capable of flushing well laminated distributor under well; ground control unit is connected with control cables; control cables passed through cable wellhead and was connected with more than 1 the automatically controlled injection well downhole flow regulator of laminated distributor under well with more than 1 mistake cable well packer capable of flushing well, water injection string box cupling had cable fixing protector.
Described cable wellhead of crossing comprises upper flange on well head and tubing hanger, and upper flange and tubing hanger have via hole, and cross outer end of hole and be connected with combination sealing head, cable is implanted in well by combination sealing head.
Described cable well packer capable of flushing well of crossing comprises packer top connection and seal nipple, on packer top connection sidewall, axis has the cable aperture excessively communicated with ring cavity, cross on cable aperture and be connected with seal nipple, cable enters ring cavity through seal nipple, and cable is passed by ring cavity lower end and is placed in lower outer pipe and axially crosses outward in cable channel.
Described cable fixing protector comprises screening glass, front band and lower catch hoop, and semicircle screening glass is built-in with rubber pad, and front band is hingedly connected at screening glass upper end, and lower catch hoop is hingedly connected at screening glass lower end.
The automatically controlled injection well downhole flow regulator of described laminated distributor under well comprises supervisor and interior pipe, water distribution top connection wall axially have into cable aperture, water distribution lower contact wall axially there is cable aperture, enter cable aperture and go out in cable aperture to have seal nipple, main body is externally connected with between water distribution top connection and water distribution lower contact, interior pipe is connected with in water distribution top connection and water distribution lower contact, between supervisor and interior pipe, top is equipped with pipe external pressure sensor, supervisor and interior pipe lower end and integrated water distribution main body, the collecting channel of the integrated water distribution main body that one end communicates with interior pipe is built-in with flow meter and overpressure sensor, collecting channel bottom is connected with exhalant canal, adjustable ceramic water nozzle is arranged at the exhalant canal top of corresponding weep hole, adjustable ceramic water nozzle is connected with motor by transmission device, pipe external pressure sensor, overpressure sensor, flow meter is connected with circuit board with motor, circuit board is connected with ground control unit by cable.
The present invention has following beneficial effect: this cable direct controlled type water distribution system, owing to adopting under cable wellhead, water injection string was serially connected with the automatically controlled injection well downhole flow regulator of cable well packer capable of flushing well laminated distributor under well; ground control unit is connected with control cables; control cables passed through cable wellhead and was connected with more than 1 the automatically controlled injection well downhole flow regulator of laminated distributor under well with more than 1 mistake cable well packer capable of flushing well, water injection string box cupling had the structure of cable fixing protector.Realize down-hole and automatically test envelope, flow rate test, the monitoring of stratum injection pressure and each interval runoff investigation.This cable direct controlled type water distribution system has down-hole and automatically tests envelope, flow rate test, the monitoring of stratum injection pressure and the feature of each interval runoff investigation thus.
accompanying drawing illustrates:
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is cable wellhead structural representations excessively of the present invention;
Accompanying drawing 3 is structural representations of cable well packer capable of flushing well excessively of the present invention;
Accompanying drawing 4 is cable fixing protector structural representations of the present invention;
Accompanying drawing 5 is the automatically controlled injection well downhole flow regulator structural representations of laminated distributor under well of the present invention.
1-ground control unit in figure, 2-crosses cable wellhead, and 3-crosses cable well packer capable of flushing well, 4-cable fixing protector; the automatically controlled injection well downhole flow regulator of 5-laminated distributor under well, 6-upper flange, 7-tubing hanger, 8-top connection; 9-seal nipple, 10-lower outer pipe, 11-crosses cable channel; 12-screening glass, 13-front band, 14-lower catch hoop; 15-is responsible for, pipe in 16-, the integrated water distribution main body of 17-; 18-flow meter, 19-is adjustable ceramic water nozzle, 20-motor.
detailed description of the invention:
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, this cable direct controlled type water distribution system comprises ground control unit 1, crosses cable wellhead 2, crosses cable well packer capable of flushing well 3, cable fixing protector 4 and the automatically controlled injection well downhole flow regulator 5 of laminated distributor under well.Cross on cable wellhead 2 times water injection strings and be serially connected with the automatically controlled injection well downhole flow regulator 5 of cable well packer capable of flushing well 3 laminated distributor under well; ground control unit 1 is connected with control cables; control cables passed through cable wellhead 2 and was connected with more than 1 the automatically controlled injection well downhole flow regulator 5 of laminated distributor under well with more than 1 mistake cable well packer capable of flushing well 3, water injection string box cupling had cable fixing protector 4.
Described cable wellhead 2 of crossing comprises upper flange 6 on well head and tubing hanger 7.Upper flange 6 and tubing hanger 7 have via hole, and cross outer end of hole and be connected with combination sealing head, cable is implanted in well by combination sealing head.
Described cable well packer capable of flushing well 3 of crossing comprises packer top connection 8 and seal nipple 9.Packer top connection 8 sidewall axially has communicate with ring cavity cross cable aperture, cross on cable aperture and be connected with seal nipple 9, cable enters ring cavity through seal nipple 9, and cable is passed by ring cavity lower end and is placed in that lower outer pipe 10 is outer axially to be crossed in cable channel 11.
Described cable fixing protector 4 comprises screening glass 12, front band 13 and lower catch hoop 14.Semicircle screening glass 12 is built-in with rubber pad, and front band 13 is hingedly connected at screening glass 12 upper end, and lower catch hoop 14 is hingedly connected at screening glass 12 lower end.Front band 13 is buckled on the oil pipe of tubing coupling upper end, and lower catch hoop 14 is buckled on the oil pipe of tubing coupling lower end, and screening glass 12 is enclosed within outside tubing coupling place cable, available protecting cable.
The automatically controlled injection well downhole flow regulator of described laminated distributor under well 5 comprises supervisor 15 and interior pipe 16.Water distribution top connection wall axially has into cable aperture, water distribution lower contact wall axially has cable aperture, enter cable aperture and go out in cable aperture to have seal nipple, laminated distributor under well automatically controlled injection well downhole flow regulator 5 inner cable is connected with outer cable by seal nipple.Supervisor 15 is externally connected with between water distribution top connection and water distribution lower contact, interior pipe 16 is connected with in top connection and lower contact, between supervisor 13 and interior pipe 14, top is equipped with pipe external pressure sensor, supervisor 15 and interior pipe 16 lower end and integrated water distribution main body 17, integrated water distribution main body 17 axially there are collecting channel and exhalant canal, collecting channel upper end is connected with in interior pipe 16, collecting channel lower end is connected with exhalant canal, there is weep hole exhalant canal upper end, and water enters stratum through interior pipe 16, collecting channel, exhalant canal and weep hole.The collecting channel of the integrated water distribution main body 17 that one end communicates with interior pipe 16 is built-in with flow meter 18 and overpressure sensor, collecting channel bottom is connected with exhalant canal, adjustable ceramic water nozzle 19 is arranged at the exhalant canal top of corresponding weep hole, adjustable ceramic water nozzle 19 is connected with motor 20 by transmission device, pipe external pressure sensor, overpressure sensor, flow meter 18 are connected with circuit board with motor 20, and circuit board is connected with ground control unit 1 by cable.
During actual use, the cable of this cable direct controlled type water distribution system passed cable wellhead 2 upper flange 6 and tubing hanger 7 enters down-hole, cable is fixed on water injection string box cupling by cable fixing protector 4, and protect cable, prevent from damaging cable during lower water injection string, cable through cable well packer capable of flushing well 3 packer top connection 8 and cross cable channel 11, the cable aperture that enters of the water distribution top connection of the automatically controlled injection well downhole flow regulator of laminated distributor under well 5 enters in the automatically controlled injection well downhole flow regulator 5 of laminated distributor under well again, and be connected with circuit board, the go out cable aperture of some cable on water distribution lower contact wall passes the automatically controlled injection well downhole flow regulator 5 of laminated distributor under well, cable well packer capable of flushing well 3 is crossed and the automatically controlled injection well downhole flow regulator 5 of laminated distributor under well is connected with lower one deck.Ground control unit 1 is connected by the automatically controlled injection well downhole flow regulator 5 of cable and laminated distributor under well, ground control unit 1 is by pipe external pressure sensor, overpressure sensor, flow meter 18 locality stressor layer, water injection pressure and the water injection rate data in the automatically controlled injection well downhole flow regulator 5 of laminated distributor under well, directly water injection rate is controlled again by motor 20, and then realize down-hole automatically test envelope, flow rate test, stratum injection pressure monitoring and each interval runoff investigation, reach the meticulous subdivision injection in oil field and stratified water amount Based Intelligent Control object.
Claims (1)
1. a cable direct controlled type water distribution system, comprise ground control unit (1), cross cable wellhead (2), cross cable well packer capable of flushing well (3), cable fixing protector (4) and the automatically controlled injection well downhole flow regulator of laminated distributor under well (5), it is characterized in that: excessively under cable wellhead (2), water injection string was serially connected with the automatically controlled injection well downhole flow regulator of cable well packer capable of flushing well (3) laminated distributor under well (5), (1) is connected with control cables with ground control unit, control cables passed through cable wellhead (2) and was connected with more than 1 the automatically controlled injection well downhole flow regulator of laminated distributor under well (5) with more than 1 mistake cable well packer capable of flushing well (3), water injection string box cupling there is cable fixing protector (4),
Described cable wellhead (2) of crossing comprises upper flange (6) on well head and tubing hanger (7), upper flange (6) and tubing hanger (7) there is via hole, cross outer end of hole and be connected with combination sealing head, cable is implanted in well by combination sealing head;
Described cable well packer capable of flushing well (3) of crossing comprises packer top connection (8) and seal nipple (9), on packer top connection (8) sidewall, axis has the cable aperture excessively communicated with ring cavity, cross on cable aperture and be connected with seal nipple (9), cable enters ring cavity through seal nipple (9), and cable is passed by ring cavity lower end and is placed in lower outer pipe (10) and axially crosses outward in cable channel (11);
Described cable fixing protector (4) comprises screening glass (12), front band (13) and lower catch hoop (14), semicircle screening glass (12) is built-in with rubber pad, front band (13) is hingedly connected at screening glass (12) upper end, and lower catch hoop (14) is hingedly connected at screening glass (12) lower end;
The automatically controlled injection well downhole flow regulator of described laminated distributor under well (5) comprises supervisor (15) and interior pipe (16), water distribution top connection wall axially have into cable aperture, water distribution lower contact wall axially there is cable aperture, enter cable aperture and go out in cable aperture to have seal nipple, be externally connected with between water distribution top connection and lower contact and be responsible for (15), interior pipe (16) is connected with in water distribution top connection and lower contact, between supervisor (15) and interior pipe (16), top is equipped with pipe external pressure sensor, supervisor (15) and interior pipe (16) lower end and integrated water distribution main body (17), the collecting channel of the integrated water distribution main body (17) that one end communicates with interior pipe (16) is built-in with flow meter (18) and overpressure sensor, collecting channel bottom is connected with exhalant canal, adjustable ceramic water nozzle (19) is arranged at the exhalant canal top of corresponding weep hole, adjustable ceramic water nozzle (19) is connected with motor (20) by transmission device, pipe external pressure sensor, overpressure sensor, flow meter (18) is connected with circuit board with motor (20), circuit board is connected with ground control unit (1) by cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510751324.3A CN105332677A (en) | 2015-11-06 | 2015-11-06 | Cable direct-controlled water distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510751324.3A CN105332677A (en) | 2015-11-06 | 2015-11-06 | Cable direct-controlled water distribution system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105332677A true CN105332677A (en) | 2016-02-17 |
Family
ID=55283410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510751324.3A Pending CN105332677A (en) | 2015-11-06 | 2015-11-06 | Cable direct-controlled water distribution system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105332677A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014364A (en) * | 2016-06-16 | 2016-10-12 | 中国石油天然气股份有限公司 | Wireless remote real-time testing system for water injection well |
| CN107218026A (en) * | 2017-05-09 | 2017-09-29 | 广东迅维科技发展有限公司 | A kind of real-time intelligent well logging apparatus of optical cable built in coiled tubing |
| CN107304669A (en) * | 2016-04-15 | 2017-10-31 | 贵州航天凯山石油仪器有限公司 | The improved method and intelligent watering device of a kind of injection well downhole flow regulator |
| CN108286418A (en) * | 2018-02-24 | 2018-07-17 | 中国石油天然气股份有限公司 | A kind of water injection well coiled tubing intelligent testing tune distributor cable connection structure and method |
| CN109577931A (en) * | 2018-12-25 | 2019-04-05 | 贵州航天凯山石油仪器有限公司 | A kind of intelligence distributor |
| CN115012873A (en) * | 2022-05-30 | 2022-09-06 | 西安思坦仪器股份有限公司 | Downhole multilayer packer step-by-step seal checking method of wave code water distributor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107304669A (en) * | 2016-04-15 | 2017-10-31 | 贵州航天凯山石油仪器有限公司 | The improved method and intelligent watering device of a kind of injection well downhole flow regulator |
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| CN107218026A (en) * | 2017-05-09 | 2017-09-29 | 广东迅维科技发展有限公司 | A kind of real-time intelligent well logging apparatus of optical cable built in coiled tubing |
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| CN108286418B (en) * | 2018-02-24 | 2024-01-30 | 中国石油天然气股份有限公司 | Cable connection structure and method for intelligent measuring and adjusting injection device of coiled tubing of water injection well |
| CN109577931A (en) * | 2018-12-25 | 2019-04-05 | 贵州航天凯山石油仪器有限公司 | A kind of intelligence distributor |
| CN115012873A (en) * | 2022-05-30 | 2022-09-06 | 西安思坦仪器股份有限公司 | Downhole multilayer packer step-by-step seal checking method of wave code water distributor |
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Application publication date: 20160217 |