CN104500025B - Digital underground controller - Google Patents
Digital underground controller Download PDFInfo
- Publication number
- CN104500025B CN104500025B CN201410801865.8A CN201410801865A CN104500025B CN 104500025 B CN104500025 B CN 104500025B CN 201410801865 A CN201410801865 A CN 201410801865A CN 104500025 B CN104500025 B CN 104500025B
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- communication module
- underground
- wireless communication
- socket
- circuit
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- 238000004891 communication Methods 0.000 claims abstract description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 229920003023 plastic Polymers 0.000 claims abstract description 11
- 239000004033 plastic Substances 0.000 claims abstract description 11
- 235000018290 Musa x paradisiaca Nutrition 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 240000005561 Musa balbisiana Species 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 22
- 239000007924 injection Substances 0.000 description 22
- 238000000034 method Methods 0.000 description 7
- 238000011161 development Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 241000234295 Musa Species 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000011326 mechanical measurement Methods 0.000 description 2
- 230000037007 arousal Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
- E21B44/005—Below-ground automatic control systems
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
- E21B47/092—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes by detecting magnetic anomalies
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (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)
- Remote Sensing (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention provides a digital underground controller, which comprises an outer protecting pipe, wherein the upper end of the outer protecting pipe is connected with an upper protecting cap, the lower end of the outer protecting pipe is connected with a plastic protecting pipe, and a socket, a magnetic positioning protecting pipe, a circuit framework, an underground decoding circuit, a communication module and a wireless communication module are sequentially arranged in the outer protecting pipe from top to bottom; the magnetic positioning protective tube is internally provided with magnetic steel, a coil assembly and a gasket, the circuit framework is provided with a power supply module, the underground decoding circuit and the communication module are connected between the circuit framework and the wireless communication module in parallel, the underground decoding circuit, the communication module and the wireless communication module are respectively and electrically connected with the power supply module, and the power supply module is electrically connected with the socket after penetrating through the magnetic steel, the coil assembly and the gasket. The invention adopts the bidirectional wireless communication between the controller and the water distributor to realize the transmission of the testing and adjusting instruction and the recording of real-time data and historical data of underground flow, pressure and temperature, can finish the underground multilayer flow testing and adjustment and the recording of the historical data by one-time underground descending, and effectively improves the success rate and the efficiency of testing and adjusting.
Description
Technical field
The invention belongs to water injection well for oil downhole instrument technical field, and in particular to a kind of digital downhole controller.
Background technology
In order to keep stratum energy, effect of reservoir development is improved, most of oil reservoirs carry out waterflooding extraction, but as water filling is opened
The extension of hair time, is influenceed by Reservoir Heterogeneity, and interlayer water suction difference is big, causes the serious uneven, layer of oil reservoir development degree
Between it is particularly thorny, influence whole development effect.In order to improve interlayer water suction difference, individual layer water injection rate is entered using fine layering water
Row finely regulating, improves oil reservoir section development degree, improves effect of reservoir development.
At present, oil recovery factor is improved in each oil field using concentric water distribution tubing string and eccentric water distribution pipe column technology, its method
It is:First according to the theoretical water distribution quantity of each oil reservoir and actual water distribution quantity and nozzle loss curve, it is repeated using mechanical measurement and adjustment instrument
Water nozzle aperture is adjusted, untill the water injection rate of this layer reaches geological scheme requirement.
And at least there is problems with the concentric water distribution tubing string and eccentric water distribution pipe column technology of existing use：
(1) eccentric separated-injection and concentric separated-injection technique are controlled using mechanical measurement and adjustment instrument, in allocation process, can only be tested
Survey the water injection rate for adjusting layer position, it is impossible to ensure that other layer of position water injection rate is met and require, its test allotment is less efficient, by water filling
Pressure variations influence is big, and the injection allocation term of validity is short, it is impossible to which the long-term design that meets is with fluence requirement.
(2) eccentric separated-injection and concentric separated-injection technique need to be operated in test allocation process using contact is realized, adjustable claw is needed
Docked with injection well downhole flow regulator, add the risk for the card that is hampered in work progress；Meanwhile, current data, nothing can only be enrolled by surveying tune process
Method checks history injection allocation data, it is impossible to clear to grasp the true water filling dynamic of water injection well, influences oil field dispensing development effectiveness.
Therefore, studied in the urgent need to carrying out history water filling data recording and contactless survey conditioning technology.
The content of the invention
The purpose of the present invention is to overcome prior art low in the presence of power is measured and tuned into the allotment of water injection well layering flow rate test,
The problem of card risk that is hampered is greatly and historical data can not be checked.
Therefore, the invention provides a kind of digital downhole controller, including outer protection tube, the outer protection tube upper end is connected with
Socket, magnetic orientation pillar, circuit are from top to bottom disposed with inside upper helmet, lower end connection plastics pillar, the outer protection tube
Skeleton, underground decoding circuit, communication module and wireless communication module；
The wireless communication module receives the signal of downhole water flow regulator, and transmits a signal to underground decoding circuit and solved
Code, underground decoding circuit sends decoded signal to communication module, and obtained signal is transferred to ground by communication module；
Magnet steel, coil block and pad, the coil block two ends respectively connection one are provided with the magnetic orientation pillar
Magnet steel, the pad is connected with magnet steel；
Power module is provided with the circuit framework, power module gives underground decoding circuit, communication module and nothing respectively
Line communication module is powered, the underground decoding circuit and communication module be connected in parallel to circuit framework and wireless communication module it
Between, the power module is electrically connected after passing through magnet steel, coil block and pad with socket.
Sealed between above-mentioned upper helmet and outer protection tube using O-ring seal one.
Above-mentioned socket is single banana bin, twin-core socket or three core sockets.
Above-mentioned socket upper end is fixed by hole with elastic spring.
The plug-in mounting of above-mentioned socket lower end is in magnetic orientation pillar upper apertures.
It is fixedly connected between above-mentioned magnetic orientation pillar, plastics pillar and circuit framework using sunk screw.
Fixed between above-mentioned power module, underground decoding circuit, communication module and wireless communication module by pan head screw
Connection.
Above-mentioned wireless communication module lower end is connected with adapter.
Sealed between above-mentioned plastics pillar and outer protection tube by O-ring seal two.
Beneficial effects of the present invention：
(1) digital downhole controller of the invention uses cable power supply, and transmission in real time, which is surveyed, adjusts instruction and downhole flow, pressure
Power, the current data of temperature and historical data.
(2) digital downhole controller of the invention has magnetic orientation function, can accurately determine downhole water flow regulator position, it is ensured that
Information accurate delivery.
(3) two-way wireless communication is used between digital downhole controller and injection well downhole flow regulator of the invention, control mode connects to be non-
Touch, underground multilayer flow test allotment and historical data admission can be completed by once going into the well, and raising is measured and tuned into power and efficiency.
The present invention is described in further details below with reference to accompanying drawing.
Brief description of the drawings
Fig. 1 is the structural representation of digital downhole controller of the invention.
Fig. 2 is the circuit connection diagram of digital downhole controller of the invention.
Description of reference numerals：1st, upper helmet；2nd, O-ring seal one；3rd, hole elastic spring；4th, socket；5th, magnetic orientation is protected
Pipe；6th, magnet steel；7th, coil block；8th, pad；9th, sunk screw；10th, circuit framework；11st, power module；12nd, pan head screw；
13rd, underground decoding circuit；14th, communication module；15th, outer protection tube；16th, wireless communication module；17th, O-ring seal two；18th, transfer
Head；19th, plastics pillar.
Embodiment
Embodiment 1：
In order to overcome prior art, in the presence of being measured and tuned into, power is low in the allotment of water injection well layering flow rate test, and be hampered card wind
The problem of danger is greatly and historical data can not be checked, present embodiments provides a kind of digital underground control as depicted in figs. 1 and 2
Device, including outer protection tube 15, the upper end of outer protection tube 15 are connected with helmet 1, lower end connection plastics pillar 19, the outer protection tube 15
Inside is from top to bottom disposed with socket 4, magnetic orientation pillar 5, circuit framework 10, underground decoding circuit 13, communication module 14
With wireless communication module 16.
The wireless communication module 16 receives the signal of downhole water flow regulator, and transmits a signal to underground decoding circuit 13 and enter
Row decoding, underground decoding circuit 13 sends decoded signal to communication module 14, and communication module 14 passes obtained signal
It is defeated to arrive ground.
Magnet steel 6, coil block 7 and pad 8 are provided with the magnetic orientation pillar 5, the two ends of coil block 7 are respectively connected
One magnet steel 6, the pad 8 is connected with magnet steel 6.
Power module 11 is provided with the circuit framework 10, power module 11 is respectively to underground decoding circuit 13, communication
Module 14 and wireless communication module 16 are powered, and the underground decoding circuit 13 and communication module 14 are connected in parallel to circuit framework 10
Between wireless communication module 16, the power module 11 is electrically connected after passing through magnet steel 6, coil block 7 and pad 8 with socket 4.
The upper screwed connection of helmet 1 is in the upper end of outer protection tube 15, for protecting inner socket 4, when the digital underground is controlled
When device needs to go into the well, upper helmet 1 needs to disassemble, and external cable is plugged on socket 4, by cable drive, this is digital
Downhole controller is moved up and down in oil pipe and is monitored.
The signals such as the pressure of areal receiver-array, temperature, flow are converted into ground instrument and can received by underground decoding circuit 13
And the data signal shown, so as to realize that underground situation is grasped on ground.
In addition, between the upper helmet 1 and outer protection tube 15 using O-ring seal 1 seal, the plastics pillar 19 with
Sealed between outer protection tube 15 by O-ring seal 2 17, to ensure the overall sealing of the digital downhole controller and detection
Accuracy.
The socket 4 is single banana bin, twin-core socket or three core sockets.
The upper end of socket 4 is fixed by hole elastic spring 3.
The lower end plug-in mounting of socket 4 in the upper apertures of magnetic orientation pillar 5, in magnetic orientation pillar 5 by pad 8,
Magnet steel 6, coil block 7, magnet steel 6, the order of pad 8 are from top to bottom set with successively.
It is fixedly connected between the magnetic orientation pillar 5, plastics pillar 19 and circuit framework 10 using sunk screw 9.
Pass through coiled hair between the power module 11, underground decoding circuit 13, communication module 14 and wireless communication module 16
Screw 12 is fixedly connected.
The lower end of wireless communication module 16 is connected with adapter 18, and adapter 18 is used for converting unlike signal communication, modeling
Material pillar 19 is protected outside adapter 18, for protecting communication antenna.
When the digital downhole controller is transferred in oil pipe, magnet steel 6 and coil block 7 detect oil pipe section using magnetic flux
Bind round position and carry out magnetic orientation；The antenna of wireless communication module 16 launches signal, through plastics pillar 19 and outside injection well downhole flow regulator
On signal docked, reach the purpose of wireless telecommunications.
The operation principle of the digital downhole controller of the present invention is as follows：
1st, magnetic orientation：The digital downhole controller of the present invention is provided with magnetic orientation structure, during going into the well, close to underground
During injection well downhole flow regulator, the changes of magnetic field that magnet steel 6 is produced is converted into the cable that electric signal connects through socket 4 through coil block 7 and is uploaded to
Ground, so that it is determined that downhole water flow regulator position.
2nd, wireless telecommunications：The digital downhole controller of the present invention is provided with wireless communication module 16, communication module 14 and well
Instruction is reached the digital downhole controller by lower decoding circuit 13, ground by cable, and controller uses wireless communication mode
Instruction is conveyed to injection well downhole flow regulator, so as to realize effective control of downhole water flow regulator.
3rd, arousal function：The communication self-checking function of the digital downhole controller, it is ensured that downhole controller and ground communication
Normally；The digital downhole controller of the present invention is provided with magnetic orientation pillar 5, magnet steel 6, coil block 7, when magnet steel 6 is by underground
During injection well downhole flow regulator, signal is converted into electric signal by coil block 7 and sent to ground, ground again sends enabling signal to the number
Word formula downhole controller, then, digital downhole controller send a signal to injection well downhole flow regulator, wake up downhole water flow regulator, the numeral
Formula downhole controller wake up down-hole distributor and therewith set up communicate, it is ensured that can by downhole water flow regulator by closed mode wake up to
Normal operating conditions pattern.
4th, historical data reads and transmitted:The digital downhole controller of the present invention is provided with wireless communication module 16, communication
Module 14 and underground decoding circuit 13, flow, temperature, the pressure of the injection well downhole flow regulator storage that controller is enrolled using wireless communication mode
And the historical data such as automatically control, then it is conveyed to ground by cable.
In summary, this digital downhole controller that the present invention is provided, by cable power supply, using controller with matching somebody with somebody
Two-way wireless communication between hydrophone, realizes to survey and adjusts instruction transmission and downhole flow, pressure, temperature real time data and historical data record
Take, underground multilayer flow test allotment and historical data admission can be completed by once going into the well, and effectively improved and be measured and tuned into power and efficiency.
It is exemplified as above be only to the present invention for example, do not constitute the limitation to protection scope of the present invention, it is all
It is to be belonged to the same or analogous design of the present invention within protection scope of the present invention.
Claims (4)
1. a kind of digital downhole controller, it is characterised in that：Including outer protection tube (15), outer protection tube (15) upper end is connected with
Socket (4), magnetic are from top to bottom disposed with inside upper helmet (1), lower end connection plastics pillar (19), the outer protection tube (15)
Position pillar (5), circuit framework (10), underground decoding circuit (13), communication module (14) and wireless communication module (16)；
The wireless communication module（16）Receive the signal of downhole water flow regulator, and transmit a signal to underground decoding circuit (13)
Row decoding, underground decoding circuit (13) sends decoded signal to communication module (14), and communication module (14) is by what is obtained
Signal is transferred to ground；
Magnet steel (6), coil block (7) and pad (8), coil block (7) two ends are provided with the magnetic orientation pillar (5)
A magnet steel (6) is respectively connected, the pad (8) is connected with magnet steel (6)；
Be provided with power module (11) on the circuit framework (10), power module (11) respectively to underground decoding circuit (13),
Communication module (14) and wireless communication module (16) power supply, the underground decoding circuit (13) and communication module (14) parallel connection
Between circuit framework (10) and wireless communication module (16), the power module (11) passes through magnet steel (6), coil block (7)
Electrically connected afterwards with socket (4) with pad (8)；
The socket (4) is single banana bin, twin-core socket or three core sockets；Socket (4) upper end passes through hole steel wire
Back-up ring (3) is fixed；Socket (4) the lower end plug-in mounting is in magnetic orientation pillar (5) upper apertures；
Sealed between the upper helmet (1) and outer protection tube (15) using O-ring seal one (2)；The magnetic orientation pillar (5), modeling
It is fixedly connected between material pillar (19) and circuit framework (10) using sunk screw (9).
2. digital downhole controller as claimed in claim 1, it is characterised in that：The power module (11), underground decoding
It is fixedly connected between circuit (13), communication module (14) and wireless communication module (16) by pan head screw (12).
3. digital downhole controller as claimed in claim 1, it is characterised in that：Wireless communication module (16) lower end connects
It is connected to adapter (18).
4. digital downhole controller as claimed in claim 1, it is characterised in that：The plastics pillar (19) and outer protection tube
(15) sealed between by O-ring seal two (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410801865.8A CN104500025B (en) | 2014-12-22 | 2014-12-22 | Digital underground controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410801865.8A CN104500025B (en) | 2014-12-22 | 2014-12-22 | Digital underground controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104500025A CN104500025A (en) | 2015-04-08 |
| CN104500025B true CN104500025B (en) | 2017-10-17 |
Family
ID=52941464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410801865.8A Active CN104500025B (en) | 2014-12-22 | 2014-12-22 | Digital underground controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104500025B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313764B (en) * | 2017-07-19 | 2024-02-02 | 西安思坦仪器股份有限公司 | Cable-free oil extraction well layered production allocation device and method |
| CN109057774A (en) * | 2018-07-16 | 2018-12-21 | 西安物华巨能爆破器材有限责任公司 | Accurate comprehensive control underwater wireless communicates the spread of the rumours device |
| CN109025925B (en) * | 2018-08-07 | 2024-09-27 | 中国石油天然气股份有限公司 | Digital split injection underground integrated controller |
| CN110984931A (en) * | 2020-01-02 | 2020-04-10 | 中国石油天然气股份有限公司 | Underground real-time monitoring and automatic allocation electric water distributor and use method thereof |
| CN111075412A (en) * | 2020-01-02 | 2020-04-28 | 中国石油天然气股份有限公司 | Real-time monitoring and automatic allocation process system and method for underground separate-zone water injection |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995023909A1 (en) * | 1994-03-04 | 1995-09-08 | Valery Petrovich Dyblenko | Method of exploiting an oil-bearing seam |
| CN101440705A (en) * | 2008-12-17 | 2009-05-27 | 新疆华油油气工程有限公司 | Super-deep well wireless transmission well testing system |
| CN103261582A (en) * | 2010-12-17 | 2013-08-21 | 埃克森美孚上游研究公司 | Method for automatic control and positioning of autonomous downhole tools |
| CN103670349A (en) * | 2012-09-07 | 2014-03-26 | 中国石油天然气股份有限公司 | Bridge type concentric intelligent testing and adjusting separate injection device and process |
| CN204457728U (en) * | 2014-12-22 | 2015-07-08 | 中国石油天然气股份有限公司 | Digital underground controller |
-
2014
- 2014-12-22 CN CN201410801865.8A patent/CN104500025B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995023909A1 (en) * | 1994-03-04 | 1995-09-08 | Valery Petrovich Dyblenko | Method of exploiting an oil-bearing seam |
| CN101440705A (en) * | 2008-12-17 | 2009-05-27 | 新疆华油油气工程有限公司 | Super-deep well wireless transmission well testing system |
| CN103261582A (en) * | 2010-12-17 | 2013-08-21 | 埃克森美孚上游研究公司 | Method for automatic control and positioning of autonomous downhole tools |
| CN103670349A (en) * | 2012-09-07 | 2014-03-26 | 中国石油天然气股份有限公司 | Bridge type concentric intelligent testing and adjusting separate injection device and process |
| CN204457728U (en) * | 2014-12-22 | 2015-07-08 | 中国石油天然气股份有限公司 | Digital underground controller |
Non-Patent Citations (1)
| Title |
|---|
| 智能测调配水装置无线通信技术的研究;杨婷;《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》;20130615;17-24 * |
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| CN104500025A (en) | 2015-04-08 |
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