CN104500025A - Digital underground controller - Google Patents
Digital underground controller Download PDFInfo
- Publication number
- CN104500025A CN104500025A CN201410801865.8A CN201410801865A CN104500025A CN 104500025 A CN104500025 A CN 104500025A CN 201410801865 A CN201410801865 A CN 201410801865A CN 104500025 A CN104500025 A CN 104500025A
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- Prior art keywords
- communication module
- pillar
- wireless communication
- digital
- socket
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- 238000004891 communication Methods 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 229920003023 plastic Polymers 0.000 claims abstract description 13
- 239000004033 plastic Substances 0.000 claims abstract description 13
- 230000008054 signal transmission Effects 0.000 claims description 6
- 235000018290 Musa x paradisiaca Nutrition 0.000 claims description 3
- 240000005561 Musa balbisiana Species 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 8
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 23
- 239000007924 injection Substances 0.000 description 23
- 238000000034 method Methods 0.000 description 7
- 238000011161 development Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 241000234295 Musa Species 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 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
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001131 transforming effect Effects 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
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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
- 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. The digital underground controller comprises an external protecting pipe; the upper end of the external protecting pipe is connected with an upper protecting cover and while the lower end is connected with a plastic protecting pipe; a socket, a magnetic locating pipe, a circuit framework, an underground decoding circuit, a communication module and a wireless communication module are arranged in the external protecting pipe from top to bottom in a sequence; a magnetic steel, a coil assembly and a gasket are arranged in the magnetic locating protecting pipe; a power module is arranged on the circuit framework; the underground decoding circuit and the communication module are connected in parallel between the circuit framework and the communication module; the underground decoding circuit, the communication module and the wireless communication module are respectively electrically connected with the power module; the power module passes through the magnetic steel, the coil assembly and the gasket to be electrically connected with the socket. According to the digital underground controller, the bidirectional wireless communication is performed for the controller and the water distributor to transmit a testing and regulation instruction and read real-time data and historical data of underground flow rate, pressure and temperature; the flow rate of a plurality of underground layers can be tested and regulated and the historical data can be recorded by one logging, and therefore, the testing and regulation success rate and efficiency can be effectively improved.
Description
Technical field
The invention belongs to water injection well for oil downhole instrument technical field, be specifically related to a kind of digital downhole controller.
Background technology
In order to keep stratum energy, improve effect of reservoir development, most of oil reservoir carries out waterflooding extraction, but along with the prolongation of waterflooding extraction time, by the impact of Reservoir Heterogeneity, interlayer water suction difference is large, cause the serious inequality of oil reservoir development degree, interlayer contradiction outstanding, affect whole development effect.In order to improve interlayer water suction difference, adopting meticulous layering water to carry out finely regulating to individual layer water injection rate, improving oil reservoir section development degree, improving effect of reservoir development.
At present, each oil field adopts concentric water distribution tubing string and eccentric water distribution pipe column technology to improve oil recovery factor, its method is: first according to the theoretical water distribution quantity of each oil reservoir and actual water distribution quantity and nozzle loss curve, adopt mechanical type measurement and adjustment instrument repeatedly to carry out adjustment water nozzle aperture, reach till geological scheme requires until the water injection rate of this layer.
And at least there is following problem in the concentric water distribution tubing string of existing employing and eccentric water distribution pipe column technology:
(1) eccentric separated-injection and concentric separated-injection technique adopt mechanical type measurement and adjustment instrument to control, in allocation process, the water injection rate surveyed and adjusting layer position can only be tested, cannot ensure that other layer of position water injection rate meets the demands, its test allotment efficiency is lower, large by water injection pressure variable effect, injection allocation period of validity is short, cannot meet the requirement of design injection allocation amount for a long time.
(2) eccentric separated-injection and concentric separated-injection technique need adopt contact to operate realization at test allocation process, and adjustable claw need be docked with injection well downhole flow regulator, and adding in work progress is hampered meets the risk of card; Meanwhile, survey tune process and can only enroll current data, history injection allocation data cannot be checked, cannot the true water filling of clear grasp water injection well dynamic, affect oil field dispensing development effectiveness.
Therefore, in the urgent need to carrying out history water filling data recording and the research of contactless survey conditioning technology.
Summary of the invention
The object of the invention is to overcome prior art in the allotment of water injection well layering flow rate test, have that to be measured and tuned into power low, being hampered to block has a big risk and problem that historical data cannot be checked.
For this reason, the invention provides a kind of digital downhole controller, comprise outer pillar, described outer pillar upper end is connected with helmet, lower end connects plastics pillar, and described outer pillar inside is disposed with socket, magnetic orientation pillar, circuit framework, down-hole decoding circuit, communication module and wireless communication module from top to bottom;
Described wireless communication module receives the signal of downhole water flow regulator, and is decoded to down-hole decoding circuit by Signal transmissions, and down-hole decoding circuit sends decoded signal to communication module, communication module by the Signal transmissions that obtains to ground;
Be provided with magnet steel, coil block and pad in described magnetic orientation pillar, described coil block two ends respectively connect a magnet steel, and described pad is connected with magnet steel;
Described circuit framework is provided with power module, power module gives down-hole decoding circuit, communication module and wireless communication module power supply respectively, described down-hole decoding circuit and communication module parallel join are between circuit framework and wireless communication module, and described power module is electrically connected with socket through after magnet steel, coil block and pad.
O RunddichtringO one sealing is adopted between above-mentioned upper helmet and outer pillar.
Above-mentioned socket is single core banana bin, twin-core socket or three core sockets.
Above-mentioned socket upper end passing hole elastic spring is fixed.
Above-mentioned socket lower end plug-in mounting is in magnetic orientation pillar upper apertures.
Above-mentioned magnetic orientation pillar, plastics pillar are fixedly connected with all adopting sunk screw between circuit framework.
Above-mentioned power module, down-hole decoding circuit, to be fixedly connected with by pan head screw between communication module and wireless communication module.
Above-mentioned wireless communication module lower end is connected with adapter.
Sealed by O RunddichtringO two between above-mentioned plastics pillar and outer pillar.
Beneficial effect of the present invention:
(1) the digital downhole controller of the present invention adopts cable power supply, transmits in real time to survey and adjusts instruction and downhole flow, pressure, the current data of temperature and historical data.
(2) the digital downhole controller of the present invention has magnetic orientation function, and can accurately determine downhole water flow regulator position, guarantee information is accurately transmitted.
(3) adopt two-way wireless communication between the digital downhole controller of the present invention and injection well downhole flow regulator, control mode is contactless, and once going into the well can multilayer flow test allotment and historical data admission under completed well, improves and is measured and tuned into power efficiency.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
Fig. 1 is the structural representation of the digital downhole controller of the present invention.
Fig. 2 is the circuit connection diagram of the digital downhole controller of the present invention.
Description of reference numerals: 1, upper helmet; 2, O RunddichtringO one; 3, hole elastic spring; 4, socket; 5, magnetic orientation pillar; 6, magnet steel; 7, coil block; 8, pad; 9, sunk screw; 10, circuit framework; 11, power module; 12, pan head screw; 13, down-hole decoding circuit; 14, communication module; 15, outer pillar; 16, wireless communication module; 17, O RunddichtringO two; 18, adapter; 19, plastics pillar.
Detailed description of the invention
Embodiment 1:
In the allotment of water injection well layering flow rate test, have that to be measured and tuned into power low to overcome prior art, be hampered the problem that card has a big risk and historical data cannot be checked, present embodiments provide a kind of digital downhole controller as depicted in figs. 1 and 2, comprise outer pillar 15, described outer pillar 15 upper end is connected with helmet 1, lower end connects plastics pillar 19, and described outer pillar 15 inside is disposed with socket 4, magnetic orientation pillar 5, circuit framework 10, down-hole decoding circuit 13, communication module 14 and wireless communication module 16 from top to bottom.
Described wireless communication module 16 receives the signal of downhole water flow regulator, and is decoded to down-hole decoding circuit 13 by Signal transmissions, and down-hole decoding circuit 13 sends decoded signal to communication module 14, communication module 14 by the Signal transmissions that obtains to ground.
Be provided with magnet steel 6, coil block 7 and pad 8 in described magnetic orientation pillar 5, described coil block 7 two ends respectively connect a magnet steel 6, and described pad 8 is connected with magnet steel 6.
Described circuit framework 10 is provided with power module 11, power module 11 powers to respectively down-hole decoding circuit 13, communication module 14 and wireless communication module 16, described down-hole decoding circuit 13 and communication module 14 parallel join are between circuit framework 10 and wireless communication module 16, and described power module 11 is electrically connected with socket 4 through after magnet steel 6, coil block 7 and pad 8.
The upper end of upper helmet 1 screwed connection pillar 15 outside; be used for protecting inner socket 4; when this digital downhole controller needs to go into the well; upper helmet 1 needs to disassemble; external cable is plugged on socket 4, is moved up and down in oil pipe by this digital downhole controller of cable drive and monitor.
The signals such as the pressure of areal receiver-array, temperature, flow are converted into ground instrument and can receive and the data signal shown by down-hole decoding circuit 13, thus realize grasp down-hole, ground situation.
In addition, between described upper helmet 1 and outer pillar 15, all adopt O RunddichtringO 1 to seal, sealed, to guarantee this digital sealing of downhole controller entirety and accuracy of detection by O RunddichtringO 2 17 between described plastics pillar 19 and outer pillar 15.
Described socket 4 is single core banana bin, twin-core socket or three core sockets.
Described socket 4 upper end passing hole elastic spring 3 is fixed.
Described socket 4 lower end plug-in mounting, in magnetic orientation pillar 5 upper apertures, is from top to bottom set with by the order of pad 8, magnet steel 6, coil block 7, magnet steel 6, pad 8 in magnetic orientation pillar 5 successively.
Described magnetic orientation pillar 5, sunk screw 9 between plastics pillar 19 with circuit framework 10, is all adopted to be fixedly connected with.
Described power module 11, down-hole decoding circuit 13, to be fixedly connected with by pan head screw 12 between communication module 14 and wireless communication module 16.
Described wireless communication module 16 lower end is connected with adapter 18, and adapter 18 is used for transforming unlike signal communication, and plastics pillar 19 is protected at adapter 18 outside, is used for protecting communication antenna.
When this digital downhole controller is transferred in oil pipe, magnet steel 6 and coil block 7 utilize magnetic flux detection oil pipe joint hoop position to carry out magnetic orientation; The antenna transmission of wireless communication module 16 goes out signal, docks, reach the object of wireless telecommunications through plastics pillar 19 with the signal on outside injection well downhole flow regulator.
The operating principle of the digital downhole controller of the present invention is as follows:
1, magnetic orientation: the digital downhole controller of the present invention is provided with magnetic orientation structure, in the process of going into the well, when downhole water flow regulator, the changes of magnetic field produced by magnet steel 6 is converted into through coil block 7 cable that the signal of telecommunication connects through socket 4 and is uploaded to ground, thus determines downhole water flow regulator position.
2, wireless telecommunications: the digital downhole controller of the present invention is provided with wireless communication module 16, communication module 14 and down-hole decoding circuit 13, instruction is reached this digital downhole controller by cable by ground, controller adopts wireless communication mode that instruction is conveyed to injection well downhole flow regulator, thus realizes effective control of downhole water flow regulator.
3, arousal function: the communication self-checking function of this digital downhole controller, guarantee downhole controller and ground communication normal; 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 through downhole water flow regulator, signal is converted into the signal of telecommunication by coil block 7 and is sent to ground, enabling signal is sent to this digital downhole controller by ground again, then, signal is sent to injection well downhole flow regulator by digital downhole controller, wake downhole water flow regulator up, this digital downhole controller wakes down-hole distributor up and sets up communication with it, guarantees downhole water flow regulator to be waken up to normal operating conditions pattern by closed condition.
4, historical data reads and transmission: the digital downhole controller of the present invention is provided with wireless communication module 16, communication module 14 and down-hole decoding circuit 13, the historical datas such as the flow that controller adopts the injection well downhole flow regulator of wireless communication mode admission to store, temperature, pressure and automatic control, then be conveyed to ground through cable.
In sum, this digital downhole controller provided by the invention, pass through cable power supply, adopt two-way wireless communication between controller and injection well downhole flow regulator, realize surveying and adjust instruction transmission and the admission of downhole flow, pressure, temperature real time data and historical data, once going into the well can multilayer flow test allotment and historical data admission under completed well, effectively improves and is measured and tuned into power efficiency.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (9)
1. a digital downhole controller, it is characterized in that: comprise outer pillar (15), described outer pillar (15) upper end is connected with helmet (1), lower end connects plastics pillar (19), and described outer pillar (15) inside is disposed with socket (4), magnetic orientation pillar (5), circuit framework (10), down-hole decoding circuit (13), communication module (14) and wireless communication module (16) from top to bottom;
Described wireless communication module (16) receives the signal of downhole water flow regulator, and Signal transmissions is decoded to down-hole decoding circuit (13), down-hole decoding circuit (13) sends decoded signal to communication module (14), communication module (14) by the Signal transmissions that obtains to ground;
Magnet steel (6), coil block (7) and pad (8) is provided with in described magnetic orientation pillar (5), described coil block (7) two ends respectively connect a magnet steel (6), and described pad (8) is connected with magnet steel (6);
Described circuit framework (10) is provided with power module (11), power module (11) gives the power supply of down-hole decoding circuit (13), communication module (14) and wireless communication module (16) respectively, described down-hole decoding circuit (13) and communication module (14) parallel join are between circuit framework (10) and wireless communication module (16), and described power module (11) is electrically connected with socket (4) afterwards through magnet steel (6), coil block (7) and pad (8).
2. digital downhole controller as claimed in claim 1, is characterized in that: adopt O RunddichtringO one (2) to seal between described upper helmet (1) and outer pillar (15).
3. digital downhole controller as claimed in claim 1, is characterized in that: described socket (4) is single core banana bin, twin-core socket or three core sockets.
4. digital downhole controller as claimed in claim 1, is characterized in that: described socket (4) upper end passing hole elastic spring (3) is fixed.
5. digital downhole controller as claimed in claim 1, is characterized in that: described socket (4) lower end plug-in mounting is in magnetic orientation pillar (5) upper apertures.
6. digital downhole controller as claimed in claim 1, is characterized in that: described magnetic orientation pillar (5), all adopt sunk screw (9) to be fixedly connected with between plastics pillar (19) with circuit framework (10).
7. digital downhole controller as claimed in claim 1, is characterized in that: described power module (11), down-hole decoding circuit (13), be fixedly connected with by pan head screw (12) between communication module (14) and wireless communication module (16).
8. digital downhole controller as claimed in claim 1, is characterized in that: described wireless communication module (16) lower end is connected with adapter (18).
9. digital downhole controller as claimed in claim 1, is characterized in that: sealed by O RunddichtringO two (17) between described plastics pillar (19) and outer pillar (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410801865.8A CN104500025B (en) | 2014-12-22 | 2014-12-22 | A kind of digital downhole controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410801865.8A CN104500025B (en) | 2014-12-22 | 2014-12-22 | A kind of digital downhole controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104500025A true CN104500025A (en) | 2015-04-08 |
| CN104500025B CN104500025B (en) | 2017-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410801865.8A Active CN104500025B (en) | 2014-12-22 | 2014-12-22 | A kind of digital downhole controller |
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| Country | Link |
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| CN (1) | CN104500025B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313764A (en) * | 2017-07-19 | 2017-11-03 | 西安思坦仪器股份有限公司 | Cable-free type producing well regulating multi-zone production rate device and method |
| CN109025925A (en) * | 2018-08-07 | 2018-12-18 | 中国石油天然气股份有限公司 | A kind of digital dispensing underground integrated form controller |
| 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 |
| 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 |
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2014
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313764A (en) * | 2017-07-19 | 2017-11-03 | 西安思坦仪器股份有限公司 | Cable-free type producing well regulating multi-zone production rate device and method |
| 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 |
| CN109025925A (en) * | 2018-08-07 | 2018-12-18 | 中国石油天然气股份有限公司 | A kind of digital dispensing underground integrated form 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104500025B (en) | 2017-10-17 |
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