CN106499372B - Intelligent injection allocation device of integrated electromagnetic flowmeter - Google Patents

Intelligent injection allocation device of integrated electromagnetic flowmeter Download PDF

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Publication number
CN106499372B
CN106499372B CN201610902845.9A CN201610902845A CN106499372B CN 106499372 B CN106499372 B CN 106499372B CN 201610902845 A CN201610902845 A CN 201610902845A CN 106499372 B CN106499372 B CN 106499372B
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China
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pin body
central controller
cable
shell
communication module
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CN106499372A (en
Inventor
杨玲智
巨亚锋
姚斌
于九政
罗必林
毕福伟
王子建
刘延青
胡改星
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Petrochina Co Ltd
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Petrochina Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/20Displacing by water
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells

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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)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

The invention relates to an intelligent injection allocation device of an integrated electromagnetic flowmeter, which comprises an upper joint, a shell and a lower joint which are sequentially connected from top to bottom, wherein a central controller is arranged in the middle of an annular cavity of the shell, the electromagnetic flowmeter is arranged in the annular cavity at the upper part of the central controller, a communication module and a pin body are arranged in the annular cavity at the upper part of the electromagnetic flowmeter, a flow regulating device and an internal pressure sensor are arranged in the annular cavity at the lower part of the central controller, the central controller is respectively and electrically connected with the pin body, the communication module, the electromagnetic flowmeter, the flow regulating device and the internal pressure sensor, the pin body and the communication module are connected with a controller on, this intelligence injection allocator passes through cable transmission data and supplies power, can automatic test adjust the layering water injection volume, has solved the layering water injection qualification rate low, and the manual work volume is big and can not realize the problem of real time monitoring in the pit.

Description

Integrated electromagnetic type flow meter intelligence distributor
Technical field
The present invention relates to technical field of petroleum extraction, and in particular to a kind of integrated electromagnetic type flow meter intelligence distributor.
Background technique
Water flooding is most economical, most effective oil reservoir development mode, with digitlization, intellectualized technology it is continuous From mechanical manual work mode, gradually to digitlization, intelligent direction development, technique is substantially improved in development, oilfield development model Technical indicator and effect of reservoir development.Dispensing well stratified flow rate test allotment early period is all made of mechanical underground docking test and adjusts Mode, operation process need artificial terrestrial operation, and the docking of test equipment down-hole mechanical is adjusted, flow rate test adjusting, testing seal about packer And the underground work process such as pressure fall-off test is both needed to continuous rountrip, a point multiple process complexity are adjusted, and are increased field operation and are hampered Card risk, manual work workload and operating cost are met, field operation efficiency is reduced.Meanwhile seperated layer water injection at present is surveyed to adjust and be used Routine test mode is surveyed and adjusts number lower than 4 wells in year, and the decline of seperated layer water injection qualification rate is fast, restricts the fine waterflooding effect of oil reservoir, separately Outer laminated distributor under well dynamic data is required to tripping in professional tool, and special operation carries out downhole data test admission, can not be anti-in time Effect of reservoir development is reflected, every policy making relatively lags behind, and is lack of pertinence.
Summary of the invention
The purpose of the present invention is overcoming seperated layer water injection qualification rate low, manual operation amount is big and can not achieve underground and supervises in real time The problem of control.
For this purpose, the distributor includes from top to bottom the present invention provides a kind of integrated electromagnetic type flow meter intelligence distributor Sequentially connected top connection, shell and lower contact, annular space cavity is set as in the tube wall of the shell, and the lower part of shell is equipped with Water hole, the distributor are axially inside set as hollow channel, it is characterised in that: middle part installation in the annular space cavity of the shell There is central controller, the annular space cavity on the central controller top is equipped with electromagnetic type flow meter, electromagnetic type flow meter top Annular space cavity in communication module and pin body are installed, be equipped in the annular space cavity of central controller lower part flow adjust dress Set with interior pressure sensor, the central controller respectively with pin body, communication module, electromagnetic type flow meter, flow regulator It is electrically connected with interior pressure sensor, and pin body and communication module pass through cable connection in the controller on ground.
Longitudinal interior pressure passageway is provided in the tube wall of the outer casing underpart, interior pressure passageway upper end connected ring cavity body is interior Pressure passageway upper end is equipped with interior pressure sensor, interior pressure passageway lower end be connected to one radially connection distributor inner hollow it is logical The internal pressure pressure port in road.
The pin body includes sequentially connected cable connector, cable channel, pin body connector and fixing seat from top to bottom, The pin body connector is fixedly connected in fixing seat by fixed pressure cap, and fixing seat lower end is connected to central controller.
The upper shell is equipped with cable aperture, and the cable connected on the controller on ground is connected to logical by cable aperture Module and pin body are interrogated, the cable connected on pin body passes through inside the cable connector of pin body upper end, passes through cable channel It is connected to pin body connector.
The communication module is for transmitting data between central controller and the controller on ground.
The flow regulator includes sequentially connected motor, driving linked shaft and flow stopper for regulating.
The flow stopper for regulating is equipped with water nozzle hole, and the water nozzle hole is opposite with the apopore outside intelligent distributor It answers.
Flow stopper for regulating top is additionally provided with external pressure transducer.
The electromagnetic type flow meter includes outer cylinder body, and hollow central tube, the side in the middle part of central tube are equipped with inside outer cylinder body Induction electrode is radially provided on wall.
Beneficial effects of the present invention:
(1) this integrated electromagnetic type flow meter intelligence distributor row downhole flow of the invention surveys tune automatically, gets rid of steel Silk, cable connection measurement and adjustment instrument device manually carry out down-hole mechanical and adjust operation, realize digital intelligent and survey tune, long-range prison in real time Control mitigates personnel labor intensity, reduces live underground work and is hampered card risk, improves separate zone waterflooding technology intelligence water It is flat.
(2) this integrated electromagnetic type flow meter intelligence distributor of the invention uses electromagnetic type flow meter, measuring accuracy Height, while considering electromagnetic flowmeter problem easy to pollute, underground cleaning and flow on-line proving can be periodically carried out, zonal flow rate is promoted Measuring accuracy.
(3) this integrated electromagnetic type flow meter intelligence distributor of the invention has Reservoir behavior data real-time monitoring and biography Transmission function, can real-time remote monitoring Reservoir behavior, and periodically automatic execute the function such as layering pressure fall-off test, water suction indicative curve test Can, first-hand data is provided for Reservoir behavior adjustment.
The present invention is described in further details below with reference to attached drawing.
Detailed description of the invention
Fig. 1 is the control block diagram of integrated electromagnetic type flow meter intelligence distributor of the invention;
Fig. 2 is integrated electromagnetic type flow meter intelligence distributor structural schematic diagram of the invention;
Fig. 3 is the structural schematic diagram of pin body of the invention;
Fig. 4 is the structural representation of electromagnetic type flow meter of the invention.
Detailed description of the invention:
1, lower contact;2, shell;3, pin body;4, central controller;5, interior pressure sensor;6, interior pressure passageway;7, internal pressure Pressure port;8, apopore;9, cable aperture;10, communication module;11, electromagnetic type flow meter;12, motor;13, driving linked shaft;14, External pressure transducer;15, flow stopper for regulating;16, lower contact;17, outer cylinder body;18, central tube;19, induction electrode;20, electric Cable joint;21 cable channels;22, pin body connector;23, fixed pressure cap;24, fixing seat.
Specific embodiment
Present invention is further described in detail With reference to embodiment:
Embodiment 1:
As depicted in figs. 1 and 2, the present invention provides a kind of integrated electromagnetic type flow meter intelligence distributor, the distributor packets Sequentially connected top connection 1, shell 2 and lower contact 16 from top to bottom are included, is set as annular space cavity in the tube wall of the shell 2, The lower part of shell 2 is equipped with apopore 8, which is axially inside set as hollow channel, it is characterised in that: the shell 2 Annular space cavity in middle part central controller 4 is installed, the annular space cavity on 4 top of central controller is equipped with electromagnetic type stream Meter 11, is equipped with communication module 10 and pin body 3 in the annular space cavity on 11 top of electromagnetic type flow meter, under central controller 4 Flow regulator and interior pressure sensor 5 be installed in the annular space cavity in portion, the central controller 4 respectively with pin body 3, logical It interrogates module 10, electromagnetic type flow meter 11, flow regulator and interior pressure sensor 5 to be electrically connected, and pin body 3 and communication module 10 By cable connection in the controller on ground.
As shown in Figure 1, being provided with longitudinal interior pressure passageway 6 in the tube wall of 2 lower part of shell, interior 6 upper end of pressure passageway connects Logical annular space cavity, interior 6 upper end of pressure passageway are equipped with interior pressure sensor 5, and interior 6 lower end of pressure passageway is connected to one and is radially connected to The internal pressure pressure port 7 of distributor internal hollow channel.
The working principle of this integrated electromagnetic type flow meter intelligence distributor of the invention is as follows:
Intelligent distributor is serially connected on oil pipe by top connection 1 and lower contact 16, and G.I.H, the communication module 10 is set It is placed in the side on intelligent distributor annular space cavity top, is provided with data converter on communication module 10, be used for conversion data, And transmitted between central controller 4 and the controller on ground by cable, controller can be a computer, on computers Water injection parameter is set, by the data conversion of communication module 10, transmits a signal to central controller 4, the control stream of central controller 4 Quantity regulating device is filled the water, meanwhile, electromagnetic type flow meter 11, flow regulator transmit the number of underground water-injection flow, pressure The computer on ground is transmitted data to by the data conversion of communication module 10 according to central controller 4, in addition, internal pressure senses Device 5 is connected to by interior pressure passageway 6 with internal pressure pressure port 7, and internal pressure pressure port 7 is connected to the hollow channel of intelligent distributor, intelligence Pressure energy inside distributor is transmitted to interior pressure sensor 5 by internal pressure pressure port 7, and interior pressure sensor 5 connects with central controller 4 It connects, the real-time monitoring for realizing overpressure on computer is transmitted to by the data conversion of communication module 10, on computers To the real-time injection flow of underground and the data of pressure, it is adjusted according to the data of feedback.
The controller on ground is powered by cable to central controller 4.As shown in Figure 1, also electric on the central controller 4 Be connected with pin body 3, pin body 3 is installed in the side on distributor annular space cavity top, as shown in figure 3, pin body 3 include from Sequentially connected cable connector 20, cable channel 21, pin body connector 22 and fixing seat 24 under, the pin body connector 22 It is fixedly connected in fixing seat 24 by fixed pressure cap 23,24 lower end of fixing seat is connected to central controller 4.
2 upper end of shell is equipped with cable aperture 9, and the cable connected on the controller on ground is separately connected by cable aperture 9 It passes through, leads to inside the cable connector 20 of 3 upper end of pin body in the cable connected on communication module 10 and pin body 3, pin body 3 It crosses cable channel 21 and is connected to pin body connector 22.
This integrated electromagnetic type flow meter intelligence distributor of the invention passes through cable transmission data and is powered, can Automatic test adjusts layered waterflooding quantity, solves that seperated layer water injection qualification rate is low, and manual operation amount is big and can not achieve underground reality When the problem of monitoring.
Embodiment 2:
As shown in Figure 1, the flow regulator is located in annular space cavity lower part, including sequentially connected motor 12, biography Dynamic connecting shaft 13 and flow stopper for regulating 15,15 lower part of flow stopper for regulating are equipped with water nozzle hole, the water nozzle hole and intelligence Apopore 8 outside distributor is corresponding.
Water enters intelligent distributor from oil pipe, when water nozzle hole is corresponding with the apopore 8 outside intelligent distributor, is formed One waterflood path, water inject bottom, when the computer monitoring on ground is excessive to flow, automatic feedback from the waterflood path Data drive driving linked shaft 13 to move up and down to central controller 4, to control motor 12, while moving down on driving linked shaft 13 Dynamic, driving linked shaft 13 connects flow stopper for regulating 15 and moves up and down, and adjusting water nozzle hole is big with the waterflood path of apopore 8 It is small, realize the control of flow.
Further, 15 top of flow stopper for regulating is additionally provided with external pressure transducer 14, and external pressure transducer can be surveyed The pressure outside distributor is obtained, and broadcasts data to central controller 4, computer is transmitted to by the data conversion of communication module 10 The upper real-time monitoring for realizing pipe external pressure.
Embodiment 3:
As shown in figure 4, the electromagnetic type flow meter 11 includes outer cylinder body 17, hollow central tube is equipped with inside outer cylinder body 17 18, induction electrode 19 is radially provided on the side wall at the middle part of central tube 18.
When water enters intelligent distributor from oil pipe, the electromagnetic type flow meter 11 positioned at intelligent distributor top passes through upper sense Electrode 19 is answered to measure flow, central controller 4 monitors data on flows, is transmitted to calculating by the data conversion of communication module 10 The real-time monitoring of flow is realized on machine.
The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all It is within being all belonged to the scope of protection of the present invention with the same or similar design of the present invention.

Claims (2)

1. a kind of integrated electromagnetic type flow meter intelligence distributor, the distributor include from top to bottom sequentially connected top connection (1), Shell (2) and lower contact (16), annular space cavity is set as in the tube wall of the shell (2), and the lower part of shell (2) is equipped with apopore (8), which is axially inside set as hollow channel, it is characterised in that: middle part peace in the annular space cavity of the shell (2) Equipped with central controller (4), the annular space cavity on central controller (4) top is equipped with electromagnetic type flow meter (11), electromagnetism Communication module (10) and pin body (3) are installed in the annular space cavity on formula flowmeter (11) top, central controller (4) lower part Flow regulator and interior pressure sensor (5) be installed in annular space cavity, the central controller (4) respectively with pin body (3), Communication module (10), electromagnetic type flow meter (11), flow regulator and interior pressure sensor (5) electrical connection, and pin body (3) and Communication module (10) is by cable connection in the controller on ground;
Longitudinal interior pressure passageway (6), interior pressure passageway (6) upper end connected ring cavity are provided in the tube wall of shell (2) lower part Body, interior pressure passageway (6) upper end are equipped with interior pressure sensor (5), interior pressure passageway (6) lower end be connected to one radially connection match Infuse the internal pressure pressure port (7) of device internal hollow channel;
The pin body (3) includes sequentially connected cable connector (20), cable channel (21), pin body connector from top to bottom (22) pass through fixed pressure cap (23) with fixing seat (24), the pin body connector (22) and be fixedly connected on fixing seat (24), Gu Reservation (24) lower end is connected to central controller (4);
The flow regulator includes sequentially connected motor (12), driving linked shaft (13) and flow stopper for regulating (15); Flow stopper for regulating (15) top is additionally provided with external pressure transducer (14);The flow stopper for regulating (15) is equipped with water Nozzle aperture, the water nozzle hole are corresponding with apopore (8) outside intelligent distributor;The electromagnetic type flow meter (11) includes outer cylinder body (17), it is equipped with hollow central tube (18) inside outer cylinder body (17), is radially provided with induced electricity on the side wall in the middle part of central tube (18) Pole (19);
Shell (2) upper end is equipped with cable aperture (9), and the cable connected on the controller on ground is connected respectively by cable aperture (9) It is connected to communication module (10) and pin body (3), cable connector of the cable connected on pin body (3) from pin body (3) upper end (20) internal to pass through, pin body connector (22) are connected to by cable channel (21).
2. a kind of integrated electromagnetic type flow meter intelligence distributor according to claim 1, it is characterised in that: the communication mould Block (10) is for transmitting data between central controller (4) and the controller on ground.
CN201610902845.9A 2016-10-18 2016-10-18 Intelligent injection allocation device of integrated electromagnetic flowmeter Active CN106499372B (en)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109025926B (en) * 2018-09-06 2021-02-23 中国石油化工股份有限公司 Centralized control type intelligent separate-layer water injection string and regulation and control system
CN109372492B (en) * 2018-10-25 2024-03-01 中国石油天然气股份有限公司 Intelligent water distributor integrating wireless communication and electromagnetic flowmeter and use method
CN109915092A (en) * 2018-12-21 2019-06-21 中国石油天然气股份有限公司 Digital water distributor of central channel integrated flowmeter
CN110671083A (en) * 2019-10-28 2020-01-10 中国海洋石油集团有限公司 Multi-ultrasonic redundant flow measurement type intelligent water distributor
CN110685654B (en) * 2019-10-29 2021-11-26 中国石油化工股份有限公司 Small-diameter intelligent injection allocation device and use method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202417458U (en) * 2011-12-20 2012-09-05 西安思坦仪器股份有限公司 Intelligent cable type measuring and adjusting water injection device for water injection well
EP2530239A1 (en) * 2011-05-31 2012-12-05 Siemens Aktiengesellschaft Injection system for an oil conveying system
CN104153747A (en) * 2014-08-18 2014-11-19 哈尔滨工业大学 Gear adjusting type injection allocation device for polymer injection well
CN104179484A (en) * 2014-08-18 2014-12-03 哈尔滨工业大学 Internal magnetic flowmeter type intelligent recoverable injection allocation device
CN104314534A (en) * 2014-08-18 2015-01-28 哈尔滨工业大学 Differential pressure flow meter-type smart adjustable throwing and fishing injection dispenser
CN105464642A (en) * 2015-12-16 2016-04-06 中国石油天然气股份有限公司 Flow monitoring device of intelligent water distributor of integrated vortex shedding flowmeter
CN205445579U (en) * 2015-12-16 2016-08-10 中国石油天然气股份有限公司 Flow monitoring device of intelligent water distributor of integrated vortex shedding flowmeter
CN206158705U (en) * 2016-10-18 2017-05-10 中国石油天然气股份有限公司 Integrated intelligent injection allocation device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160186545A1 (en) * 2014-12-09 2016-06-30 Baker Hughes Incorporated Low salinity water injection alternating with immiscible gas injection to increase oil recovery

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2530239A1 (en) * 2011-05-31 2012-12-05 Siemens Aktiengesellschaft Injection system for an oil conveying system
CN202417458U (en) * 2011-12-20 2012-09-05 西安思坦仪器股份有限公司 Intelligent cable type measuring and adjusting water injection device for water injection well
CN104153747A (en) * 2014-08-18 2014-11-19 哈尔滨工业大学 Gear adjusting type injection allocation device for polymer injection well
CN104179484A (en) * 2014-08-18 2014-12-03 哈尔滨工业大学 Internal magnetic flowmeter type intelligent recoverable injection allocation device
CN104314534A (en) * 2014-08-18 2015-01-28 哈尔滨工业大学 Differential pressure flow meter-type smart adjustable throwing and fishing injection dispenser
CN105464642A (en) * 2015-12-16 2016-04-06 中国石油天然气股份有限公司 Flow monitoring device of intelligent water distributor of integrated vortex shedding flowmeter
CN205445579U (en) * 2015-12-16 2016-08-10 中国石油天然气股份有限公司 Flow monitoring device of intelligent water distributor of integrated vortex shedding flowmeter
CN206158705U (en) * 2016-10-18 2017-05-10 中国石油天然气股份有限公司 Integrated intelligent injection allocation device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
直读式智能分层注水技术研究与试验;胡改星等;《油气田勘探与开发国际会议(2016 IFEDC)论文集(下册)》;20160811;第1-8页

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