CN209654020U - The Intelligent water injection device of large cased well - Google Patents
The Intelligent water injection device of large cased well Download PDFInfo
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- CN209654020U CN209654020U CN201920339066.1U CN201920339066U CN209654020U CN 209654020 U CN209654020 U CN 209654020U CN 201920339066 U CN201920339066 U CN 201920339066U CN 209654020 U CN209654020 U CN 209654020U
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Abstract
The utility model relates to a kind of Intelligent water injection devices of large cased well, including ground control system, ground control system includes water main, control water branch pipe and ground water injection pipe, water manual switch valve is equipped with by flange on control 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, 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 ground 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 the water injection pipe of ground, the entrance of the bypass drainpipe is equipped with electronic relief valve.The control system can realize the bidirection press wave communication of ground installation and downhole instrument.
Description
Technical field
The utility model relates to the separate water injection well of petroleum gas field more particularly to a kind of intelligence notes of large cased well
Water installations 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.
Utility model content
The purpose of this utility model is that overcoming problems of the prior art, a kind of intelligence of large cased well is provided
The bidirection press wave communication of ground installation and downhole instrument may be implemented in water filling device.
In order to solve the above technical problems, the Intelligent water injection device of a kind of large cased well of the utility model, including ground control
System processed, the ground control system include the control water branch pipe being connected with water main, are equipped with and on the control water branch pipe
Water manual switch valve, the upstream of the water manual switch valve are equipped with upstream pressure transmitter, the water manual switch valve
Downstream intelligent water adjusting valve is installed, the intelligence water adjusting valve is equipped with flow sensor, the downstream connection of the intelligence water adjusting valve
There is water filling manual switch valve, the outlet of the water filling manual switch valve is connected with ground water injection pipe, and the ground water injection pipe goes out
Mouth is connected by the tubing valve of well head four-way with downhole water injection string, is equipped on the downhole water injection string and is controlled by ground
The downhole intelligent injection well downhole flow regulator of control system；Pipeline between the intelligence water transfer valve outlet and the water filling manual switch valve inlet
On downstream pressure transmitter is installed, the signal wire of the upstream pressure transmitter, downstream pressure transmitter and intelligent water adjusting valve
It is connected with ground controller.
Compared with the existing technology, the utility model achieves following the utility model has the advantages that opening water manual switch valve and water filling
After manual switch valve, water flow enters intelligent water adjusting valve along water main and control water branch pipe, enters after intelligent water transfer valve regulation
Ground water injection pipe, upstream pressure transmitter can detecte the pressure of intelligent water adjusting valve upstream and be transferred to ground controller, after valve
Pressure transmitter can detecte the pressure in intelligent water adjusting valve downstream and be transferred to ground controller, and ground controller sends control letter
Number the switch of intelligent regulating valve is adjusted, to control injection flow.When intelligent water adjusting valve from it is fully closed switch to standard-sized sheet when, ground
Pressure increases simultaneously with flow, forms the height of pressure and flow coding；When intelligent water adjusting valve switches to fully closed from standard-sized sheet, ground
Pressure reduces simultaneously with flow, forms pressure and encodes with flow low, is thusly-formed pressure wave, downstream pressure wave is sent to underground
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
Reeb, pressure upstream wave acquire and are sent to ground controller by downstream pressure transmitter, and ground controller parses uplink pressure
Reeb so realizes the bidirection press wave communication of ground installation and downhole instrument.
Power supply unit, ground control chip, data are equipped with as the improvement of the utility model, in the ground controller to adopt
Collect unit, signal processing unit and data remote interface, the signal receiving end of the data acquisition unit is respectively and before the valve
Pressure transmitter, downstream pressure transmitter are connected with the signal wire of intelligent water adjusting valve, the pressure flow of the data acquisition unit
Signal output end is connected with the pressure flow signal receiving end of the signal processing unit, and the signal processing unit is with described
Face controls the connection of chip both-way communication, and the ground control chip is connect with the data remote interface both-way communication, the number
It is wirelessly connected according to teletransmission interface and host computer, the control signal output of the signal processing unit and the intelligent water adjusting valve
Signal wire connection.Data acquisition unit receives the upstream pressure signal of upstream pressure transmitter transmission, downstream pressure transmitter
The flow signal that the downstream pressure signal of transmission and intelligent water adjusting valve are sent, and it is supplied to ground control chip, ground controls core
Piece issues control signal to intelligent water adjusting valve after operation and processing, through signal processing unit.It is also logical that ground controls chip
It crosses data remote interface and wireless device and the real time datas such as flow, pressure is sent to host computer, real-time display well head data reach
To the purpose of long-range monitoring commissioning.When coding, the data remote interface in ground controller works as finger to the instruction of host computer
When enabling to read downhole data, control signal is sent to adjust the switch of intelligent regulating valve, passes through the switch shape of intelligent regulating valve
At the high and low variation of pressure and flow, the signaling function of pressure wave communication is realized.Downhole intelligent injection well downhole flow regulator receives ground signal
Afterwards, returning pressure wave code is parsed to ground, ground in face of close echo code.When receiving code, by reading downstream pressure transmitter
Data on flows on pressure data and reading intelligent regulating valve is high impulse when being higher than a certain threshold value, when being lower than a certain threshold value
For low pulse, the receipts code process of pressure wave communication is completed with this, and received wave code parse according to rendezvous protocol content
To downhole data, the bi-directional communication function on ground and underground is completed.
The signal processing unit also passes through communication interface and touch screen phase as a further improvement of the utility model,
Even.Touch screen can carry out the scene display of data.
Bypass drainpipe, the bypass are connected on the ground water injection pipe as a further improvement of the utility model,
The entrance of drainpipe be equipped with electronic relief valve, the signal processing unit be equipped with 24V output end, the 24V output end with it is described
The power supply line of electronic relief valve is connected.In underground, seepage of water is bad, when causing pressure that can not reduce, signal processing unit output
24V gives electronic relief valve, opens it and carries out quick pressure releasing, the coding of low-pressure pulses is reached with this.
The downstream pressure transmitter is mounted on going out for the intelligent water adjusting valve as a further improvement of the utility model,
On mouth transverse tube, the back side of the ground controller is equipped with vertical supports, and clip, the clip are fixed in the vertical supports
It embraces in the outlet standpipe of the intelligent water adjusting valve.The peace on the spot of ground controller may be implemented by vertical supports and clip
Dress, and adjustable position.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments, and attached drawing only provides ginseng
It examines and illustrates to use, it is non-to limit the utility model.
Fig. 1 is the perspective view of ground control system in the Intelligent water injection device of the utility model large cased well.
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 utility model.
Fig. 4 is that Fig. 3 removes the left view after outer protection tube.
In figure: G1. water main；G2. water branch pipe is controlled；G3. ground water injection pipe；G4. drainpipe is bypassed；P1. it is pressed before valve
Power transmitter；P2. downstream pressure transmitter；V1. water manual switch valve；V2. intelligent water adjusting valve；V3. manual switch valve is filled the water；
V4. electronic relief valve；K1. ground controller；K1a. vertical supports；K1b. clip.1. top connection；2. outer protection tube；3. center mistake
Flow tube；4. inner protective tube；The upper inner protective tube flange collar of 4a.；Inner protective tube flange collar under 4b.；5. upper seal support；6. water nozzle control mechanism；7. electricity
Machine driving 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. the 4th mounting post；15. bottom sealing socket；It is connect under 16.
Head；17. water nozzle；Anti- return of 17a. spits cover.
Specific embodiment
As shown in Figure 1, the Intelligent water injection device of the utility model large cased well, including water main G1 and ground water filling
Pipe G3, water main G1 are connected with control water branch pipe G2, control and are equipped with water manual switch valve V1 by flange on water branch pipe G2,
The upstream of water manual switch valve V1 is equipped with upstream pressure transmitter P1, and the downstream of water manual switch valve V1 is equipped with intelligence
Water adjusting valve V2, intelligent water adjusting valve V2 are equipped with flow sensor, and the downstream connection of intelligent water adjusting valve V2 has water filling manual switch valve V3,
The outlet for filling the water manual switch valve V3 connects ground 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 flow is along water main G1 and control water branch pipe
G2 enters intelligent water adjusting valve V2, enters ground water injection pipe G3 after intelligent water adjusting valve V2 adjusting, upstream pressure transmitter P1 can be with
It detects the pressure of the intelligence upstream water adjusting valve V2 and is transferred to ground controller K1, downstream pressure transmitter P2 can detecte intelligent tune
The pressure in the downstream water valve V2 is simultaneously transferred to ground controller K1, and ground controller K1 sends control signal to adjust intelligent regulating valve
Switch, intelligent water adjusting valve V2 has the function of detection flows, can read flow in real time, while there is valve opening to adjust and make
With.
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 the water injection pipe G3 of ground, 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 not
Good, 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,
Reach the coding of low-pressure pulses with this.
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.
Claims (5)
1. a kind of Intelligent water injection device of large cased well, including ground control system, it is characterised in that: the ground control system
Including the control water branch pipe being connected with water main, water manual switch valve is installed on the control 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 intelligent water adjusting valve,
The intelligence water adjusting valve is equipped with flow sensor, and the downstream connection of the intelligence water adjusting valve has water filling manual switch valve, the note
The outlet of water manual switch valve is connected with ground water injection pipe, and the outlet of the ground water injection pipe passes through the tubing valve of well head four-way
It is connected with downhole water injection string, the downhole intelligent water distribution for being controlled by ground control system is installed on the downhole water injection string
Device；Downstream pressure pick-up is installed on pipeline between the intelligence water transfer valve outlet and the water filling manual switch valve inlet
The signal wire of device, the upstream pressure transmitter, downstream pressure transmitter and intelligent water adjusting valve is connected with ground controller.
2. the Intelligent water injection device of large cased well according to claim 1, it is characterised in that: set in the ground controller
There are power supply unit, ground control chip, data acquisition unit, signal processing unit and data remote interface, the data acquisition
The signal receiving end of the unit signal wire phase with the upstream pressure transmitter, downstream pressure transmitter and intelligent water adjusting valve respectively
Even, the pressure flow signal receiving end of the pressure flow signal output end of the data acquisition unit and the signal processing unit
It is connected, the signal processing unit is connect with ground control chip both-way communication, the ground control chip and the number
It is connected according to 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 processed is connect with the signal wire of the intelligent water adjusting valve.
3. the Intelligent water injection device of large cased well according to claim 2, it is characterised in that: the signal processing unit is also
It is connected by communication interface with touch screen.
4. the Intelligent water injection device of large cased well according to claim 2, it is characterised in that: connect on the ground water injection pipe
It is connected to bypass drainpipe, the entrance of the bypass drainpipe is equipped with electronic relief valve, and the signal processing unit is exported equipped with 24V
End, the 24V output end are connected with the power supply line of the electronic relief valve.
5. the Intelligent water injection device of large cased well according to claim 1, it is characterised in that: the downstream pressure transmitter
It is mounted on the outlet transverse tube of the intelligent water adjusting valve, the back side of the ground controller is equipped with vertical supports, described vertical
Clip is fixed on bracket, the clip is embraced in the outlet standpipe of the intelligent water adjusting valve.
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| CN201920339066.1U CN209654020U (en) | 2019-03-18 | 2019-03-18 | The Intelligent water injection device of large cased well |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920339066.1U CN209654020U (en) | 2019-03-18 | 2019-03-18 | The Intelligent water injection device of large cased well |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113374456A (en) * | 2021-07-07 | 2021-09-10 | 中国石油化工股份有限公司 | Pressure wave two-way communication layered water injection device |
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2019
- 2019-03-18 CN CN201920339066.1U patent/CN209654020U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113374456A (en) * | 2021-07-07 | 2021-09-10 | 中国石油化工股份有限公司 | Pressure wave two-way communication layered water injection device |
| CN113374456B (en) * | 2021-07-07 | 2022-05-03 | 中国石油化工股份有限公司 | Pressure wave two-way communication layered water injection device |
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