CN109869123A - Water injection well depositing system - Google Patents
Water injection well depositing system Download PDFInfo
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- CN109869123A CN109869123A CN201910202842.8A CN201910202842A CN109869123A CN 109869123 A CN109869123 A CN 109869123A CN 201910202842 A CN201910202842 A CN 201910202842A CN 109869123 A CN109869123 A CN 109869123A
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Abstract
The present invention relates to a kind of water injection well depositing systems, including ground control system and downhole intelligent injection well downhole flow regulator, ground control system includes carrying out water conduit tube, water branch pipe and water injection pipe, water manual switch valve is equipped with by flange on water branch pipe, the upstream of water manual switch valve is equipped with upstream pressure transmitter, the downstream of water manual switch valve is equipped with intelligent water adjusting valve by flange, intelligent water adjusting valve is equipped with flow sensor, the downstream connection of intelligent water adjusting valve has water filling manual switch valve, the outlet for filling the water manual switch valve connects water injection pipe, downstream pressure transmitter is installed on pipeline between intelligent water transfer valve outlet and water filling manual switch valve inlet, upstream pressure transmitter, the signal wire of downstream pressure transmitter and intelligent water adjusting valve is connected with ground controller.Bypass drainpipe is connected on water injection pipe, the entrance of the bypass drainpipe is equipped with electronic relief valve.The bidirection press wave communication of ground installation and downhole instrument may be implemented in the control system.
Description
Technical field
The present invention relates to the separate water injection well of petroleum gas field more particularly to a kind of water injection well depositing system,
Belong to separate zone waterflooding technology field.
Background technique
After the investment exploitation of oil field, with the growth of mining time, formation pressure, which constantly declines, causes oil well output to subtract significantly
It is small, in addition can stop-spraying stop production, at this time in order to which the underground caused by making up after oil extraction goes out is in debt, keep and improve oil reservoir pressure
Power realizes oil field stable high yield, it is necessary to fill the water to oil reservoir.
Seperated layer water injection is to implement to fill the water by the packing of packer and the control of water nozzle, plays senior middle school's low permeability formation all
Water filling effect, to realize that adjustment oil field interlayer contradiction improves a technological measure of waterflood sweep efficiency.In different oil fields
Development phase, the difference of the difference of purpose layer number and property and the object of modification scenario and requirement exploited due to investment,
It must implement seperated layer water injection in conjunction with meticulous pool description, dynamic Feature Analysis, can be only achieved the purpose for improving development effectiveness.
The common injection well downhole flow regulator of petroleum gas field is broadly divided into traditional retrievable type injection well downhole flow regulator, deploys water when surveying at present
Device, Distributor for injecting water to oil well and untethered injection well downhole flow regulator are had the survey tune of water injection rate and are carried out surveying tune or the tune when surveying using pulling water nozzle, and
There is cable formula intelligent watering device to need lower cable to carry out the communication on ground and underground.Using it is more be untethered intelligent watering device,
Its ground installation mainly has with the communication mode that downhole hardware uses: decentralization communicates pipe nipple communication or uniaxial pressure wave communication, under
Communication pipe nipple communication mode is put because the maintenance cost in its later period is larger, gradually by pressure wave communication in place.And uniaxial pressure wave
Communication can only be from ground to underground send wave code instruction, and downhole intelligent injection well downhole flow regulator receives command switch water nozzle or changes injection allocation, but
It is that uniaxial pressure wave communication can not obtain the data such as every layer of underground real-time traffic, strata pressure on ground.
Summary of the invention
It is an object of the present invention to overcome problems of the prior art, a kind of water injection well depositing system is provided,
The bidirection press wave communication of ground installation and downhole instrument may be implemented.
In order to solve the above technical problems, a kind of water injection well depositing system of the invention, including ground control system and
It is controlled by the downhole intelligent injection well downhole flow regulator of ground control system, the ground control system includes coming water conduit tube and water injection pipe, described
Carry out water conduit tube and be connected with water branch pipe, water manual switch valve is equipped with by flange on the water branch pipe, it is described come sailor
The upstream of dynamic switch valve is equipped with upstream pressure transmitter, and the downstream of the water manual switch valve is equipped with intelligence by flange
Water adjusting valve, the intelligence water adjusting valve are equipped with flow sensor, and there is water filling hand in the downstream of the intelligence water adjusting valve by flanged joint
The outlet of dynamic switch valve, the water filling manual switch valve connects the water injection pipe, the intelligence water transfer valve outlet and the water filling
Downstream pressure transmitter is installed, the upstream pressure transmitter, downstream pressure become on the pipeline between manual switch valve inlet
Device and the signal wire of intelligent water adjusting valve is sent to be connected with ground controller.
Compared with the existing technology, the present invention achieves following the utility model has the advantages that opening water manual switch valve and water filling manually
After switch valve, water conduit tube is carried out on water flow edge and water branch pipe enters intelligent water adjusting valve, and water injection pipe is entered after intelligent water transfer valve regulation,
Upstream pressure transmitter can detecte the pressure of intelligent water adjusting valve upstream and be transferred to ground controller, and downstream pressure transmitter can
To detect the pressure in intelligent water adjusting valve downstream and be transferred to ground controller, ground controller sends control signal to adjust intelligence
The switch of regulating valve, to control injection flow.When intelligent water adjusting valve from it is fully closed switch to standard-sized sheet when, geostatic pressure is same with flow
Shi Zeng great forms the height of pressure and flow coding；When intelligent water adjusting valve switches to fully closed from standard-sized sheet, geostatic pressure is same with flow
When reduce, form pressure and encoded with flow low, be thusly-formed pressure wave, downstream pressure wave is sent to downhole intelligent injection well downhole flow regulator,
Reach the regulation to water injection rate.Downhole intelligent injection well downhole flow regulator is by switch tap or changes water nozzle aperture formation pressure wave, uplink pressure
Reeb acquires and is sent to ground controller by downstream pressure transmitter, and ground controller parses pressure upstream wave, so real
The bidirection press wave communication of ground installation and downhole instrument is showed.
As an improvement of the present invention, power supply unit, ground control chip, data acquisition list are equipped in the ground controller
Member, signal processing unit and data remote interface, the signal receiving end of the data acquisition unit respectively with the upstream pressure
Transmitter, downstream pressure transmitter are connected with the signal wire of intelligent water adjusting valve, the pressure flow signal of the data acquisition unit
Output end is connected with the pressure flow signal receiving end of the signal processing unit, and the signal processing unit and the ground are controlled
The connection of coremaking piece both-way communication, the ground control chip are connect with the data remote interface both-way communication, and the data are remote
It passes interface and host computer is wirelessly connected, the signal of the control signal output of the signal processing unit and the intelligent water adjusting valve
Line connection.Data acquisition unit receives the upstream pressure signal of upstream pressure transmitter transmission, downstream pressure transmitter is sent
Downstream pressure signal and the flow signal that sends of intelligent water adjusting valve, and be supplied to ground control chip, ground controls chip warp
After crossing operation and processing, control signal is issued to intelligent water adjusting valve by signal processing unit.Ground control chip also passes through number
The real time datas such as flow, pressure are sent to host computer according to teletransmission interface and wireless device, real-time display well head data reach remote
The purpose of range monitoring commissioning.When coding, the instruction of data remote interface in ground controller to host computer, when instruction is
When reading downhole data, control signal is sent to adjust the switch of intelligent regulating valve, pressure is formed by the switch of intelligent regulating valve
The signaling function of pressure wave communication is realized in the high and low variation of power and flow.After downhole intelligent injection well downhole flow regulator receives ground signal,
Returning pressure wave code is parsed to ground, ground in face of close echo code.When receiving code, by the pressure for reading downstream pressure transmitter
Data on flows in data and reading intelligent regulating valve is high impulse when being higher than a certain threshold value, is low when being lower than a certain threshold value
The receipts code process of pressure wave communication is completed in pulse with this, is parsed to obtain well to received wave code according to rendezvous protocol content
Lower data complete the bi-directional communication function on ground and underground.
As a further improvement of the present invention, the signal processing unit also passes through communication interface and is connected with touch screen.Touching
The scene display of data can be carried out by touching screen.
As a further improvement of the present invention, bypass drainpipe is connected on the water injection pipe, the bypass drainpipe
Entrance is equipped with electronic relief valve, and the signal processing unit is equipped with 24V output end, the 24V output end and the electronic pressure release
The power supply line of valve is connected.In underground, seepage of water is bad, and when causing pressure that can not reduce, signal processing unit exports 24V to electronic
Relief valve is opened it and carries out quick pressure releasing, the coding of low-pressure pulses is reached with this.
As a further improvement of the present invention, the downstream pressure transmitter is mounted on the outlet cross of the intelligent water adjusting valve
Guan Shang, the back side of the ground controller are equipped with vertical supports, and clip is fixed in the vertical supports, and the clip is embraced
In the outlet standpipe of the intelligence water adjusting valve.The installation on the spot of ground controller may be implemented by vertical supports and clip, and
Adjustable position.
As a further improvement of the present invention, the downhole intelligent injection well downhole flow regulator include the top connection of coaxial line, outer protection tube, in
Heart flow tube and lower contact, the lower end periphery of the top connection are screwed in the upper port of the outer protection tube, the lower contact
Upper periphery is screwed in the lower port of the outer protection tube, and the lower port of the center flow tube is pressed in the top of the lower contact
Portion, be equipped in the middle part of the lower contact with centre bore perforation and the adjustable water nozzle of aperture, water nozzle is installed in the lower contact
Control mechanism is equipped with inner protective tube between the top and the top connection of the center flow tube, the internal diameter of the inner protective tube is in
The internal diameter of heart flow tube is equal, and the upper and lower ends of the inner protective tube are respectively equipped with the inner protective tube flange collar outwardly protruded, two inner protective tubes
Underground control unit is installed in the cavity between flange collar；The lower end of the top connection is pressed in the outer step of inner protective tube flange collar
On, the lower end surface of lower inner protective tube flange collar is uniformly distributed there are four flange collar groove, upper seal support is embedded in each flange collar groove respectively,
The inner edge of each upper seal support is pressed respectively against the upper port of the center flow tube；Between the center flow tube and the outer protection tube
Annulus in four mounting posts axially extended are uniformly installed, the upper end of each mounting post is separately fixed at accordingly upper close
It seals on seat.The effect of top connection is connection outer protection tube and inner protective tube, and the oil pipe column for connection top provides standard interface；Outside
The effect of pillar is isolation oil pipe external pressure and fluid, and provides lower pulling force in bearing capacity and oil pipe, protection instrument peace for instrument
Entirely；Center flow tube is oily overpressure and fluid, and provides channel for lower layer's fluid and other loggers；Lower contact connection
Outer protection tube and center flow tube, and fluid course entrance and exit is provided for water nozzle, and connect water nozzle, while envelope detection is tested in connection
Pipe nipple simultaneously provides pressure tappings for it, and the also oil pipe column for connection lower section provides standard interface.Underground control unit is along inner protective tube
Arrangement of cavities between outer protection tube, it is compact-sized, the aperture of water nozzle is accurately adjusted by water nozzle control mechanism, to adjust note
Water side's amount.When water nozzle from it is fully closed switch to standard-sized sheet when, water injection pressure increases simultaneously with flow, formed pressure and flow coding
It is high；When water nozzle switches to fully closed from standard-sized sheet, water injection pressure reduces simultaneously with flow, formed pressure encoded with flow it is low, such as
This forms underground pressure wave, and underground pressure wave returns up, acquired and sent by the downstream pressure transmitter of ground control system
To ground controller, ground controller parses underground pressure wave, so realizes the Bidirectional pressure of ground installation and downhole instrument
Reeb communication.
As a further improvement of the present invention, the lower end of the first, second and third mounting post is separately fixed in the lower contact,
The lower end of first mounting post is equipped with testing for receivable ground controller pressure wave signal and seals detection pipe nipple, in the second mounting post
Section is equipped with the motor-driven mechanism for controlling the water nozzle control mechanism actuation time and direction, and motor-driven mechanism is controlled by institute
Underground control unit is stated, the signal input part of the underground control unit is electrically connected with the signal output end for testing envelope detection pipe nipple
It connects.Four mounting posts will test envelope detection pipe nipple and motor-driven mechanism is separately mounted in the out of phase of annulus, can be with
Reduce the overall dimension of injection well downhole flow regulator, and the center flow tube of larger interior diameter can be used, in order to leading to for test equipment
Row.The pressure sensor for testing envelope detection pipe nipple receives the pressure wave signal of downlink and is transferred to underground control unit, while testing envelope
Detection pipe nipple also measures actual pressure in pipe and manages outer actual pressure, tests in conjunction with related algorithm the case where packer
Envelope, is also fed back to underground control unit for the pressure real data inside and outside pipe.Underground control unit, which receives, tests envelope detection pipe nipple
Signal, storage each unit algorithm data and control program, calculate the data on flows of water nozzle；Water is controlled by motor-driven mechanism
The actuation time of mouth control mechanism and direction, to adjust the opening value size of water nozzle water outlet, and then accurately to adjust this layer
Water filling side amount, while by open, closure water nozzle water outlet formed underground pressure wave to the ground control system send.Test envelope inspection
The signal cable surveyed between pipe nipple and underground control unit is walked along the inner cavity of the first mounting post, lower inner protective tube flange collar and upper sealing
Seat is equipped with axial hole and passes through for signal cable.The injection well downhole flow regulator, which once constructs to meet for a long time, tests envelope, water filling and pressure drop
Fall equal functional tests.
As a further improvement of the present invention, oriented underground control unit, motor-driven mechanism are installed in the 4th mounting post
The integrated power supply unit of power supply is provided with envelope detection pipe nipple is tested, the periphery of the integrated power supply unit is equipped with outside power supply unit and protects
Shell, the outer rim of the upper seal support are pressed in the upper port of said supply unit outer protecting shell, the lower end of said supply unit outer protecting shell
Bottom sealing socket is equipped between mouth and the outer wall of the center flow tube, the lower end of the 4th mounting post is fixed on the lower sealing
On seat.Integrated power supply unit provides electric power safeguard for each movement mechanism and electronic component, carry integrate power supply unit can be with
Make the injection well downhole flow regulator for a long time in underground work, and carries out ground and under-well bi-directional transmission using pressure wave.Upper seal support is close under
Envelope seat ensures the sealing of power supply unit outer protecting shell upper and lower port.
As a further improvement of the present invention, the internal diameter of the center flow tube is greater than 46mm.It can be less than by outer diameter
The test equipment of 46mm.
As a further improvement of the present invention, the external port of the water nozzle is covered with anti-return and spits cover.Anti- return is spat cover and is not influenced
Water filling, and can prevent downhole debris from entering water nozzle.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, attached drawing only provide with reference to
Illustrate to use, it is non-to limit the present invention.
Fig. 1 is the perspective view of ground control system in water injection well depositing system of the present invention.
Fig. 2 is the working principle diagram of ground controller in Fig. 1.
Fig. 3 is the main view of downhole intelligent injection well downhole flow regulator in the present invention.
Fig. 4 is that Fig. 3 removes the left view after outer protection tube.
In figure: G1. carrys out water conduit tube；G2. water branch pipe；G3. water injection pipe；G4. drainpipe is bypassed；P1. upstream pressure pick-up
Device；P2. downstream pressure transmitter；V1. water manual switch valve；V2. intelligent water adjusting valve；V3. manual switch valve is filled the water；V4. electric
Dynamic relief valve；K1. ground controller；K1a. vertical supports；K1b. clip.
1. top connection；2. outer protection tube；3. center flow tube；4. inner protective tube；The upper inner protective tube flange collar of 4a.；Inner protective tube is convex under 4b.
Circle；5. upper seal support；6. water nozzle control mechanism；7. motor-driven mechanism；8. testing envelope detection pipe nipple；9. underground control unit；10.
Integrated power supply unit；10a. power supply unit outer protecting shell；11. the first mounting post；12. the second mounting post；13. third mounting post；14.
4th mounting post；15. bottom sealing socket；16. lower contact；17. water nozzle；Anti- return of 17a. spits cover.
Specific embodiment
As shown in Figure 1, water injection well depositing system of the present invention, including come water conduit tube G1 and water injection pipe G3, carry out water conduit tube
G1 is connected with water branch pipe G2, is equipped with water manual switch valve V1, water manual switch valve by flange on water branch pipe G2
The upstream of V1 is equipped with upstream pressure transmitter P1, and the downstream of water manual switch valve V1 is equipped with intelligent water adjusting valve by flange
V2, intelligent water adjusting valve V2 are equipped with flow sensor, and there is water filling manual switch valve in the downstream of intelligent water adjusting valve V2 by flanged joint
V3, the outlet of water filling manual switch valve V3 connect water injection pipe G3, the intelligent outlet water adjusting valve V2 and water filling manual switch valve V3 entrance
Between pipeline on downstream pressure transmitter P2 is installed, upstream pressure transmitter P1, downstream pressure transmitter P2 and intelligence are adjusted
The signal wire of water valve V2 is connected with ground controller K1.
Downstream pressure transmitter P2 is mounted on the outlet transverse tube of intelligent water adjusting valve V2, the back side installation of ground controller K1
There is vertical supports K1a, clip K1b is fixed on vertical supports K1a, clip K1b is embraced in the outlet standpipe of intelligent water adjusting valve V2.
The installation on the spot of ground controller K1, and adjustable position may be implemented by vertical supports K1a and clip K1b.
After opening water manual switch valve V1 and water filling manual switch valve V3, water conduit tube G1 and water branch pipe G2 are come in water flow edge
Into intelligent water adjusting valve V2, enter water injection pipe G3 after intelligent water adjusting valve V2 adjusting, upstream pressure transmitter P1 can detecte intelligence
The pressure of the upstream energy water adjusting valve V2 is simultaneously transferred to ground controller K1, and downstream pressure transmitter P2 can detecte intelligent water adjusting valve V2
The pressure in downstream is simultaneously transferred to ground controller K1, and ground controller K1 sends control signal to adjust opening for intelligent regulating valve
It closes, intelligent water adjusting valve V2 has the function of detection flows, can read flow in real time, while having valve opening adjustment effect.
When intelligent water adjusting valve V2 from it is fully closed switch to standard-sized sheet when, geostatic pressure increases simultaneously with flow, formed pressure and stream
Measure the height of coding；When intelligent water adjusting valve V2 switches to fully closed from standard-sized sheet, geostatic pressure reduces simultaneously with flow, formed pressure with
Flow encodes low, is thusly-formed pressure wave.Underground is issued in order by way of pressure wave according to preset agreement timing
Intelligent watering device reaches the regulation to water injection rate.
Downhole intelligent injection well downhole flow regulator is by switch tap or changes water nozzle aperture formation pressure wave, and pressure upstream wave is pressed after valve
Power transmitter P2 acquires and is sent to ground controller K1, and ground controller K1 parses pressure upstream wave, so realizes ground
The bidirection press wave communication of face equipment and downhole instrument.
As shown in Fig. 2, being equipped with power supply unit in ground controller K1, ground controls chip, at data acquisition unit, signal
Manage unit and data remote interface, the signal receiving end of data acquisition unit respectively with upstream pressure transmitter P1, downstream pressure
Transmitter P2 is connected with the signal wire of intelligent water adjusting valve V2, the pressure flow signal output end and signal processing of data acquisition unit
The pressure flow signal receiving end of unit is connected, and signal processing unit is connect with ground control chip both-way communication, ground control
Chip is connect with data remote interface both-way communication, and data remote interface and host computer are wirelessly connected, the control of signal processing unit
Signal output end processed is connect with the signal wire of intelligent water adjusting valve V2.
Data acquisition unit receives the upstream pressure signal of upstream pressure transmitter P1 transmission, downstream pressure transmitter P2
The flow signal that the downstream pressure signal and intelligence water adjusting valve V2 of transmission are sent, and it is supplied to ground control chip, ground control
Chip issues control signal to intelligent water adjusting valve V2 after operation and processing, through signal processing unit.Ground controls chip
The real time datas such as flow, pressure are also sent to by host computer, real-time display well head number by data remote interface and wireless device
According to achieving the purpose that remotely to monitor commissioning.
When coding, the data remote interface in ground controller K1 is to read well when instructing to the instruction of host computer
When lower data, control signal is sent to adjust the switch of intelligent regulating valve, pressure and stream are formed by the switch of intelligent regulating valve
The signaling function of pressure wave communication is realized in the high and low variation of amount.
After downhole intelligent injection well downhole flow regulator receives ground signal, executes and returning pressure wave code is to ground, ground faces close echo
Code is parsed.When receiving code, by reading the pressure data of downstream pressure transmitter P2 and reading the flow on intelligent regulating valve
Data are high impulse when being higher than a certain threshold value, are low pulse when being lower than a certain threshold value, the receipts code of pressure wave communication is completed with this
Process parses received wave code according to rendezvous protocol content to obtain downhole data, completes the two-way on ground and underground
Telecommunication function.
Signal processing unit also passes through communication interface and is connected with touch screen, to carry out the scene display of data.
Bypass drainpipe G4 is connected on water injection pipe G3, the entrance of bypass drainpipe G4 is equipped with electronic relief valve V4, signal
Processing unit is equipped with 24V output end, and 24V output end is connected with the power supply line of electronic relief valve V4.In underground, seepage of water is bad, leads
When causing pressure that can not reduce, signal processing unit exports 24V to electronic relief valve V4, opens it and carries out quick pressure releasing, with this
Reach the coding of low-pressure pulses.
As shown in Figure 3 and Figure 4, downhole intelligent injection well downhole flow regulator includes the top connection 1 of coaxial line, outer protection tube 2, center flow tube 3
With lower contact 16, the lower end periphery of top connection 1 is screwed in the upper port of outer protection tube 2, and the upper periphery of lower contact 16 is screwed in
In the lower port of outer protection tube 2, the lower port of center flow tube 3 is pressed in the top of lower contact 16, and the middle part of lower contact 16 is equipped with
With centre bore perforation and the adjustable water nozzle 17 of aperture, water nozzle control mechanism 6 is installed in lower contact 16.The external port of water nozzle 17 is covered
It is stamped anti-return and spits cover 17a, anti-return spits cover 17a and do not influence to fill the water, and can prevent downhole debris from entering water nozzle 17.
Inner protective tube 4, the internal diameter and center flow tube 3 of inner protective tube 4 are equipped between the top and top connection 1 of center flow tube 3
Internal diameter it is equal, the upper and lower ends of inner protective tube 4 are respectively equipped with the inner protective tube flange collar outwardly protruded, the sky between two inner protective tube flange collars
Underground control unit is installed in chamber；The lower end of top connection 1 is pressed in the outer step of inner protective tube flange collar 4a, lower inner protective tube flange collar
The lower end surface of 4b is uniformly distributed there are four flange collar groove, is embedded with upper seal support 5, each upper seal support 5 in each flange collar groove respectively
Inner edge be pressed respectively against the upper port of center flow tube 3；Uniformly pacify in annulus between center flow tube 3 and outer protection tube 2
The mounting post axially extended equipped with four, the first mounting post 11, the second mounting post 12, third mounting post 13 and the 4th mounting post
14 upper end is separately fixed on corresponding upper seal support 5.
The lower end of first mounting post 11, the second mounting post 12 and third mounting post 13 is separately fixed in lower contact 16, the
The envelope of testing that the lower end of one mounting post 11 is equipped with receivable ground controller pressure wave signal detects pipe nipple 8, the second mounting post 12
Middle section the motor-driven mechanism 7 of control 6 actuation time of water nozzle control mechanism and direction is installed, motor-driven mechanism 7 is controlled
In underground control unit 9, the signal input part of underground control unit 9 is electrically connected with the signal output end for testing envelope detection pipe nipple 8.
Oriented underground control unit 9, motor-driven mechanism 7 are installed in the 4th mounting post 14 and test envelope detection pipe nipple 8 and is provided
The integrated power supply unit 10 of power supply, the periphery for integrating power supply unit 10 are equipped with power supply unit outer protecting shell 10a, upper seal support 5 it is outer
Edge is pressed in the upper port of power supply unit outer protecting shell 10a, the lower port of power supply unit outer protecting shell 10a and the outer wall of center flow tube 3
Between be equipped with bottom sealing socket 15, the lower end of the 4th mounting post is fixed on bottom sealing socket 15.
The effect of top connection 1 is connection outer protection tube 2 and inner protective tube 4, and provides standard for the oil pipe column of connection top and connect
Mouthful；The effect of outer protection tube 2 is isolation oil pipe external pressure and fluid, and provides lower pulling force in bearing capacity and oil pipe for instrument, is protected
Instrument safety；Center flow tube 3 is oily overpressure and fluid, and provides channel for lower layer's fluid and other loggers.
Lower contact 16 connects outer protection tube 2 and center flow tube 3, and provides fluid course entrance and exit for water nozzle 17, and
Water nozzle 17 is connected, while connection tests envelope detection pipe nipple 8 and provides pressure tappings for it, the also oil pipe column for connection lower section provides mark
Quasi- interface.Water nozzle control mechanism 6 accurately adjusts the aperture of water nozzle 17, to adjust water filling side's amount.
Four mounting posts will test envelope detection pipe nipple 8, motor-driven mechanism 7 and integrated power supply unit 10 and be separately mounted to ring-type
In the out of phase in space, the overall dimension of injection well downhole flow regulator can reduce, and the center overcurrent of larger interior diameter can be used
Pipe 3, in order to the passage of test equipment.The internal diameter of center flow tube 3 is greater than 46mm, and the test of 46mm can be less than by outer diameter
Instrument.
The pressure sensor for testing envelope detection pipe nipple 8 receives the pressure wave signal of downlink and is transferred to underground control unit 9, together
When test envelope detection pipe nipple 8 and also measure in pipe actual pressure and manage outer actual pressure, the case where coming in conjunction with related algorithm to packer
It carries out testing envelope, the pressure real data inside and outside pipe is also fed back to underground control unit 9.
Underground control unit 9 receives the signal for testing envelope detection pipe nipple 8, storage each unit algorithm data and control program,
Calculate the data on flows of water nozzle 17；Actuation time and the direction of water nozzle control mechanism 6 are controlled by motor-driven mechanism 7, thus
The opening value size of water nozzle water outlet is adjusted, and then is measured accurately to adjust the water filling side of this layer, while the opening and closing of water nozzle 17 is formed
Controller is sent down-hole pressure waveform to the ground.
The signal cable tested between envelope detection pipe nipple 8 and underground control unit 9 can be worn along the inner cavity of the first mounting post 11
Row, lower inner protective tube flange collar 4b and upper seal support 5 are equipped with axial hole and pass through for signal cable.
Integrated power supply unit 10 provides electric power safeguard for each movement mechanism and electronic component, carries integrated power supply unit
10 can make the injection well downhole flow regulator for a long time in underground work, and carry out ground and under-well bi-directional transmission using pressure wave.
It is as follows to test envelope process: first during going into the well each unit in a dormant state, when suppress it is setting after the completion of one section
Time, electric circuit in well are initially located in wake-up states, and pressure wave signal is transferred to by ground control system tests envelope detection pipe nipple 8, test
Envelope detection pipe nipple 8 feeds back information to underground control unit 9, and underground control unit 9 controls electricity according to the logic unit of its storage
6 switch tap 17 of machine driving mechanism 7 and water nozzle control mechanism, and then change overpressure, underground pressure wave signal passes ground back
Control system, after ground controller receives and passes through respective algorithms, envelope data are tested in acquisition.
The injecting process is as follows: when side's amount as required is filled the water, ground control system passes through pressure wave for data are filled the water
Be transferred to underground tests envelope detection pipe nipple 8, and after testing envelope detection pipe nipple 8 reception and feeding back to underground control unit 9, underground control is single
Member 9, which passes through related algorithm and controls motor control mechanism and water nozzle control mechanism 6 using its logic unit, opens water nozzle 17 extremely
Water nozzle 17 is closed after completing water filling in corresponding position.
The downhole intelligent injection well downhole flow regulator, which once constructs to meet for a long time, tests the functional tests such as envelope, water filling and drop of pressure,
Communication between ground is to generate the pressure wave of height pulse by control water filling to realize the information mutual communication of the two.It can be very well
Solve ground layer absorbent it is bad when pressure change it is unobvious, topic that pressure was not easy to detect question and argue repeatedly is practical.Under injection well downhole flow regulator is primary
Well construction operation is that can reach the purpose of intelligent seperated layer water injection, improves construction efficiency, reduces operating personnel, reduce into
This.
The foregoing is merely the preferable possible embodiments of the present invention, non-therefore limitation patent protection model of the invention
It encloses.In addition to the implementation, the present invention can also have other embodiments.All skills formed using equivalent substitution or equivalent transformation
Art scheme, is all fallen within the protection domain of application claims.Technical characteristic of the present invention without description can be by or using now
There is technology realization, details are not described herein.
Claims (10)
1. a kind of water injection well depositing system is matched including ground control system and the downhole intelligent for being controlled by ground control system
Hydrophone, it is characterised in that: the ground control system includes coming water conduit tube and water injection pipe, it is described come water conduit tube be connected with water branch
It manages, water manual switch valve is equipped with by flange on the water branch pipe, the upstream of the water manual switch valve is equipped with
The downstream of upstream pressure transmitter, the water manual switch valve is equipped with intelligent water adjusting valve, the intelligence water transfer by flange
Valve is equipped with flow sensor, and there are water filling manual switch valve, the water filling hand in the downstream of the intelligence water adjusting valve by flanged joint
The outlet of dynamic switch valve connects the water injection pipe, between the intelligence water transfer valve outlet and the water filling manual switch valve inlet
Downstream pressure transmitter, the letter of the upstream pressure transmitter, downstream pressure transmitter and intelligent water adjusting valve are installed on pipeline
Number line is connected with ground controller.
2. water injection well depositing system according to claim 1, it is characterised in that: be equipped with electricity in the ground controller
Source unit, ground control chip, data acquisition unit, signal processing unit and data remote interface, the data acquisition unit
Signal receiving end be connected respectively with the signal wire of the upstream pressure transmitter, downstream pressure transmitter and intelligent water adjusting valve,
The pressure flow signal receiving end phase of the pressure flow signal output end of the data acquisition unit and the signal processing unit
Even, the signal processing unit is connect with ground control chip both-way communication, the ground control chip and the data
The connection of teletransmission interface both-way communication, the data remote interface and host computer are wirelessly connected, the control of the signal processing unit
Signal output end is connect with the signal wire of the intelligent water adjusting valve.
3. water injection well depositing system according to claim 2, it is characterised in that: the signal processing unit also passes through
Communication interface is connected with touch screen.
4. water injection well depositing system according to claim 2, it is characterised in that: be connected with bypass on the water injection pipe
Drainpipe, the entrance of the bypass drainpipe are equipped with electronic relief valve, and the signal processing unit is equipped with 24V output end, described
24V output end is connected with the power supply line of the electronic relief valve.
5. water injection well depositing system according to claim 1, it is characterised in that: the downstream pressure transmitter installation
On the outlet transverse tube of the intelligent water adjusting valve, the back side of the ground controller is equipped with vertical supports, the vertical supports
On be fixed with clip, the clip is embraced in the outlet standpipe of the intelligent water adjusting valve.
6. water injection well depositing system according to any one of claim 1 to 5, it is characterised in that: the underground intelligence
Energy injection well downhole flow regulator includes top connection, outer protection tube, center flow tube and the lower contact of coaxial line, and the lower end periphery of the top connection is screwed on
In the upper port of the outer protection tube, the upper periphery of the lower contact is screwed in the lower port of the outer protection tube, it is described in
The lower port of heart flow tube is pressed in the top of the lower contact, is equipped in the middle part of the lower contact and centre bore perforation and aperture
Adjustable water nozzle, is equipped with water nozzle control mechanism in the lower contact, the top of the center flow tube and the top connection it
Between be equipped with inner protective tube, the internal diameter of the inner protective tube is equal with the internal diameter of center flow tube, and the upper and lower ends of the inner protective tube are distinguished
Equipped with the inner protective tube flange collar outwardly protruded, underground control unit is installed in the cavity between two inner protective tube flange collars；It is connect on described
Head lower end be pressed in the outer step of inner protective tube flange collar, the lower end surface of lower inner protective tube flange collar be uniformly distributed there are four flange collar it is recessed
Slot is embedded with upper seal support in each flange collar groove respectively, and the inner edge of each upper seal support is pressed respectively against the upper of the center flow tube
Port；Four installations axially extended are uniformly installed in the annulus between the center flow tube and the outer protection tube
Column, the upper end of each mounting post are separately fixed on corresponding upper seal support.
7. water injection well depositing system according to claim 6, it is characterised in that: the lower end of the first, second and third mounting post
It is separately fixed in the lower contact, what the lower end of the first mounting post was equipped with receivable ground controller pressure wave signal tests envelope
Pipe nipple is detected, the middle section of the second mounting post is equipped with the motor driven machine for controlling the water nozzle control mechanism actuation time and direction
Structure, motor-driven mechanism are controlled by the underground control unit, and the signal input part of the underground control unit tests envelope with described
Detect the signal output end electrical connection of pipe nipple.
8. water injection well depositing system according to claim 7, it is characterised in that: install oriented well in the 4th mounting post
Lower control unit, motor-driven mechanism and the integrated power supply unit that envelope detection pipe nipple offer power supply is provided, the integrated power supply unit
Periphery be equipped with power supply unit outer protecting shell, the outer rim of the upper seal support is pressed in the upper port of said supply unit outer protecting shell, institute
It states and is equipped with bottom sealing socket, the 4th mounting post between the lower port of power supply unit outer protecting shell and the outer wall of the center flow tube
Lower end be fixed on the bottom sealing socket.
9. water injection well depositing system according to claim 6, it is characterised in that: the internal diameter of the center flow tube is big
In 46mm.
10. water injection well depositing system according to claim 6, it is characterised in that: the external port of the water nozzle covers
There is anti-return to spit cover.
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