CN112145138A - Water injection well wellhead underwater sound transmitting and receiving device and communication method - Google Patents
Water injection well wellhead underwater sound transmitting and receiving device and communication method Download PDFInfo
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- CN112145138A CN112145138A CN202011049605.1A CN202011049605A CN112145138A CN 112145138 A CN112145138 A CN 112145138A CN 202011049605 A CN202011049605 A CN 202011049605A CN 112145138 A CN112145138 A CN 112145138A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 238000002347 injection Methods 0.000 title claims abstract description 55
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- 238000004891 communication Methods 0.000 title claims abstract description 35
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- 239000000463 material Substances 0.000 abstract description 3
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- 239000000243 solution Substances 0.000 description 5
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
Abstract
A wellhead underwater acoustic transceiver of a water injection well and a communication method. The invention comprises the following components: the upper joint is connected with a wellhead of the water injection well and is connected with the upper outer sleeve; the joint is connected with the wellhead of the water injection well, and the lower joint is connected with the lower outer sleeve; the upper joint and the lower joint are connected through the adapter; the energy converter is connected with the adapter; the inner sleeve is arranged inside the upper joint and the lower joint; the circuit board is installed on the circuit board fixed plate, the circuit board fixed plate is installed the inner tube on, the circuit board is connected with the output of transducer, this equipment can carry out data exchange with remote control center, realize the data report in the water injection well, bridge the downhole equipment in remote control center and the water injection well, make control center's control command issue to the underwater acoustic communication equipment in the pit, thereby make long-range control and the control to every water injection well, improve the efficiency of water injection well greatly, improve the productivity, also greatly reduced the expenditure of manpower, material resources.
Description
The technical field is as follows:
the invention relates to the field of oil exploitation, in particular to a wellhead underwater acoustic transceiver of a water injection well and a communication method.
Background art:
after the oil field is put into development, the oil layer pressure is continuously reduced along with the increase of the exploitation time, so that the yield of the oil well is greatly reduced, even the spraying and the production stop can be realized, at the moment, in order to make up for the underground vacancy caused by the exploitation of the crude oil, the oil layer pressure is maintained and improved, the high and stable yield of the oil field is realized, and the layered water injection must be carried out on the oil layer.
The separate-layer water injection is implemented by the control of the packer and the water nozzle, so that the high-medium low-permeability stratum can play a role of water injection, and the technical measure of adjusting the interlayer contradiction of the oil field and improving the water injection sweep coefficient is realized. In different oil field development stages, because of the difference of the layer number and the property of the target layer put into exploitation and the difference of the object and the requirement of development and adjustment, the aim of improving the development effect can be achieved only by implementing the separated layer water injection by combining the fine oil reservoir description and the dynamic characteristic analysis
The water distribution method of the water injection well mainly adopts a pure mechanical water distributor, water nozzles with different specifications are replaced according to water injection requirements to control water distribution amount, the operation is complex, the working procedures are multiple, and the time consumption is long.
Current zonal injection mainly adopts no cable intelligence water injection mandrel, and the communication mode that its ground device and downhole device adopted mainly has: transfer communication nipple joint communication or one-way pressure wave communication, transfer communication nipple joint communication mode because of the maintenance cost great in its later stage. The pressure wave mode is mainly one-way pressure sending, and one-way pressure wave communication can only send a wave code instruction from the ground to the underground, the underground water distributor receives the instruction to switch a water nozzle or change the injection allocation, in the intelligent water distribution method, the ground device generating a pressure pulse signal mostly adopts a high-pressure pump pressurization mode, the specific method is that high-pressure water output by a ground high-pressure pump is used as a pressure source, and a corresponding pressure pulse signal is generated and transmitted to an underground water distribution tool through manually operating the pressure source and a door on a wellhead device, the method has the defects that high-pressure pump equipment is adopted, the cost is high, manual operation is adopted, the time consumption is long, the labor intensity of workers is large, the pressurization stability of the high-pressure pump is poor, and in addition, the quality of the generated pressure pulse signal is poor, the reliability is low, the signal frequency is low, and when the stratum absorbs water seriously, the, the pressure pulse is affected and the pressure signal uploaded by the downhole water distribution tool cannot be received.
The invention content is as follows:
the invention aims to provide a wellhead underwater acoustic transceiver of a water injection well and a communication method, wherein the equipment can exchange data with a remote control center to realize data report in the water injection well, and bridge the remote control center and underground equipment in the water injection well, so that a control instruction of the control center is issued to the underground underwater acoustic communication equipment, and each water injection well is remotely monitored and controlled.
The above purpose is realized by the following technical scheme:
a wellhead acoustic transceiver for a water injection well, comprising:
the upper joint is connected with a wellhead of the water injection well, and the upper joint is connected with the upper outer sleeve;
the lower joint is connected with a wellhead of the water injection well, and the lower joint is connected with the lower outer sleeve;
the upper joint and the lower joint are connected through the adapter;
the energy converter is connected with the conversion joint;
the inner sleeve is arranged inside the upper joint and the lower joint;
the circuit board is installed on the circuit board fixing plate, the circuit board fixing plate is installed on the inner sleeve, and the circuit board is connected with the output end of the transducer.
The water injection well wellhead underwater acoustic transceiver device is characterized in that the upper joint, the upper outer sleeve, the inner sleeve, the adapter joint and the lower joint form an eccentric ring structure.
The wellhead underwater acoustic transceiver of the water injection well is provided with a water injection channel and an acoustic channel at the lower joint.
The wellhead underwater acoustic transceiver of the water injection well is characterized in that the transducer is positioned in a structure of an eccentric ring formed by the lower joint and the converter.
The circuit board of the underwater acoustic transceiver at the wellhead of the water injection well comprises an underwater acoustic transmitting circuit and an underwater acoustic receiving circuit;
the underwater sound transmitting circuit comprises a DA output filter, a power amplifier output filter, a blocking capacitor (18), a step-up transformer and an output power matching circuit;
the underwater sound receiving circuit comprises a receiving and transmitting combined circuit, a preamplifier and a power supply bias circuit.
The output end of the receiving and transmitting combined circuit of the underwater sound transmitting circuit is connected with a preamplifier through a blocking capacitor, and the output end of the preamplifier is connected with an AD (analog-digital) interface on a microcontroller;
the input voltage of the well equipment is connected with the LDO power supply after being converted by the high-frequency switching power supply, and the output end of the LDO power supply is respectively connected with the preamplifier, the microcontroller and the power supply bias circuit.
The DA output interface of the microcontroller is connected with the DA output filter of the underwater sound transmitting circuit, and the output end of the DA output filter is connected with the signal input end of the power amplifier;
the output of the power amplifier is connected with a DA output filter, the DA output filter is connected with a DC blocking capacitor and then connected with a step-up transformer, the output of the step-up transformer is connected with an output matching circuit, the output power matching circuit is connected with a receiving and transmitting combined circuit, and the receiving and transmitting combined circuit is connected with the energy converter.
The water sound transceiver at the wellhead of the water injection well is characterized in that the input voltage of the equipment on the well is converted by a high-frequency switching power supply and then is connected with an LDO power supply, and the output of the LDO power supply is respectively connected with a preamplifier, a microcontroller and a power supply bias circuit.
The wellhead underwater acoustic transceiver of the water injection well is characterized in that the power amplifier is connected with a power amplifier fault circuit, the power amplifier fault circuit is connected with the microcontroller, and the microcontroller is connected with the wireless communication module DTU.
A communication method using the underwater acoustic transceiver of the wellhead of the water injection well according to the claims 1 to 9, wherein the underwater acoustic signals are received through a transceiver circuit, then are filtered and amplified through a preamplifier, then are converted into digital signals through an AD converter arranged in a microcontroller, the digital signals after conversion are processed to judge whether the signals are the signals sent by the underground underwater acoustic communication equipment, if not, the above steps are continuously completed, when the signals are detected, the signals in the next period of time are demodulated, corresponding information is analyzed, and then the signals are verified and corrected to obtain correct underground information;
after the correct underground information is obtained, the microcontroller is communicated with the wireless communication equipment through a serial port, and the obtained signal is reported to the control center through the Internet;
when the control center needs to modify the parameters of the underground equipment, the data are sent to a wellhead device through the Internet, and the wellhead device encodes corresponding information; after modulation, digital signals are converted into analog signals through the DA, the analog signals are sent to the input end of a power amplifier through the DA output filter, and after the power amplifier modulates and amplifies the analog signals, the power amplifier converts electric signals into underwater acoustic signals through the transducer and sends the underwater acoustic signals to the underground underwater acoustic communication equipment.
The invention has the beneficial effects that:
the invention uses water in the water injection well as a carrier and uses an underwater acoustic channel as a propagation channel to transmit data or control information. Because the transmitting and receiving equipment of the underwater sound is easy to realize, and manual operation is not needed, the self-service work of the communication equipment on the well and under the well can be completely realized, the manpower and material cost are greatly simplified, the current stratified water injection technology is greatly improved, and the oil well productivity is stably improved.
The equipment exchanges data with the remote control center, realizes data report in the water injection well, bridges the remote control center and the underground equipment in the water injection well, and enables the control command of the control center to be issued to the underground underwater acoustic communication equipment, so that each water injection well is remotely monitored and controlled, the efficiency of the water injection well is greatly improved, the productivity is improved, and the expenditure of manpower and material resources is greatly reduced.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a circuit configuration diagram of the underwater acoustic transceiver of the present invention.
Fig. 3 is a circuit diagram of a preamplifier of the invention.
Fig. 4 is a first transmission flowchart of the underwater acoustic transceiver of the present invention.
Fig. 5 is a transmission flowchart of the underwater acoustic transceiver of the present invention.
The specific implementation mode is as follows:
in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example 1:
the invention provides a wellhead underwater acoustic transceiver for a water injection well, which comprises a mechanical part and a circuit part,
as shown in fig. 1, the mechanical part includes: the well head mechanical device comprises an upper connector 1, an upper outer sleeve 2, a circuit board 3, an inner sleeve 4, a circuit board fixing frame, a conversion connector 6, a transducer 7, a lower outer sleeve 8 and a lower connector 9.
The eccentric circular ring structure is formed by an upper joint 1, an upper outer sleeve 2, an inner sleeve 4, a conversion joint 6 and a lower joint 9.
The lower joint 9 is provided with a water filling channel and an acoustic channel.
The transducer 7 is located in the structure of the eccentric ring formed by the lower joint 9 and the converter 6 and is fixed to the conversion joint 6.
As shown in fig. 2, the circuit part includes: the device comprises a transducer 7, a transceiving combined circuit 11, a preamplifier circuit 12, a microcontroller 15, a DA output filter circuit 11, a high-frequency power amplifier 15, a power amplifier output filter 14, a blocking capacitor 10, a booster transformer 6, an output power matching circuit 2, a high-frequency DCDC power supply 9, an LDO power supply 8, a biasing circuit 5, a power amplifier fault alarm circuit 16, a DTU wireless communication module 12 and an AC/DC module 13.
The 220V power supply is converted into 24V power supply through an AC/DC module and is connected with the aboveground equipment through a cable, the input voltage supplies power to the power amplifier, the output of the power amplifier is connected with the output filter, the output filter is connected with the DC blocking capacitor and then connected with the step-up transformer, the output of the step-up transformer is connected with the output matching circuit, and the output matching circuit is finally connected with the energy converter.
The input voltage of the well equipment is connected with the LDO power supply after being converted by the high-frequency switching power supply, and the output of the LDO power supply is respectively connected with the preamplifier, the core control board and the biasing circuit.
The output of the transducer is connected with the receiving and transmitting combined circuit, the output of the receiving and transmitting combined circuit is connected with the preamplifier circuit through the blocking capacitor, and the output of the preamplifier circuit is connected with the AD interface on the core board.
The DA output interface of the core board is connected with a DA output filter, and the output of the DA output filter is connected with the signal input of the power amplifier.
This equipment uses the underwater sound as a communication media, and the underwater sound communication is with the underwater sound signal as the carrier, and is being full of a large amount of water in the water injection well, makes the underwater sound communication can work in the water injection well and can realize, and the transmission and the receipt of underwater sound do not need artificial interference, then realizes the automatic control of every water injection layer.
The high-frequency switching power supply is used for converting the output voltage, a high-frequency synchronous BUCK structure is adopted, the input voltage range from 4V to 36V is achieved, the efficiency can reach more than 95%, and the standby power consumption is reduced. And abundant protection function, the reliability of the instrument is improved. And because the high-frequency switching power supply is adopted, the size of components can be reduced in a smaller equipment space, and greater convenience is provided for the overall design.
The LDO power supply is used after the high-frequency switching power supply, certain switching noise can be brought by the high-frequency switching power supply, then certain interference is brought to the preamplifier circuit and AD sampling, and after the LDO power supply is used, the introduction of noise is reduced in the aspect of power supply, and the reliability of a system is greatly improved.
The preamplifier adopts a multistage filter, and the multistage filter is used for improving the brick wall coefficient of the filter, so that the frequency band which can be passed by noise is reduced. Further reducing noise and improving system performance.
The high-frequency D-type power amplifier is used for amplifying the transmitted signal, and the wellhead equipment is arranged in the pipeline, so that the volume of the wellhead equipment is limited, the high-frequency power amplifier can effectively reduce the volume of devices, such as a power amplifier output filter, and the power amplifier has an excellent protection system, output short-circuit protection, over-temperature protection and the like, and further the reliability of the system is improved.
A link between a blocking capacitor and a transformer is added behind a power amplifier output filter, and the sound sending device is a piezoelectric ceramic transducer which is converted by a step-up transformer and is equivalent to the input measurement of the transformer, so that the sound sending device is a very large capacitor.
Example 2:
the invention provides a water injection well wellhead underwater sound transceiver, which processes underwater sound signals sent by underground underwater sound communication equipment and comprises the following components:
through the piezoceramics transducer, gather the underwater sound in the well, the sound wave vibrations of aquatic can make the transducer produce the signal of telecommunication, the signal of telecommunication passes through receiving and dispatching after closing the set circuit, gets into preamplifier, filter, amplify it, the filtering noise signal to amplify the in-band signal, preamplifier's structure does, and the first order is the syntropy amplifier for to the enlarging of signal, 2 nd level to 5 th level are 8 grades of butterworth band pass filter, the output that band-pass filtering plays links to each other with the AD input pin of STM32 singlechip.
STM 332's AD samples the signal with the frequency of 3~5 times of sending signal, converts analog signal into digital signal, and the signal of gathering detects through the synchronization head, detects whether there is synchronous signal, if not, continues to detect the synchronization head signal, after detecting the synchronization head signal, continues to gather follow-up effective signal, then demodulates, decodes the signal of gathering, deinterleaves, converts the signal of accepting into required information.
The STM32 analyzes the received signal, communicates with the wireless transmission module through a serial port, and transmits the current information to the control center through the wireless transmission module.
This equipment is received the signal that control center sent through wireless receiving module after, can interweave earlier the information, encode, the modulation, group code back converts digital signal into analog signal through DA, after passing through DA output filter, the filtering sampling frequency, analog signal after the processing conveys the simulation input port of power amplifier, power amplifier modulates input signal, convert corresponding PWM signal output into, the PWM signal of output passes through power amplifier output filter and filters, through stopping the direct capacitance, get into step-up transformer, step-up transformer's output is connected with output matching circuit, the signal of telecommunication is converted into the underwater acoustic signal through the transducer at last, transmit to underwater acoustic communication equipment in the pit.
Example 3:
the invention provides a wellhead underwater sound transceiver for a water injection well, which has the working principle that:
receiving the underwater acoustic signal through a receiving and transmitting combined circuit 11, filtering and amplifying the underwater acoustic signal through a preamplifier 12, converting an analog signal into a digital signal through an AD converter built in a microcontroller 15, processing the digital signal after conversion, judging whether the signal is the signal sent by the underground underwater acoustic communication equipment, if not, continuing to complete the above steps, demodulating the signal in the next period of time after the signal detects the signal sent by the underground underwater acoustic signal, analyzing the corresponding information, checking and correcting the signal to obtain correct underground information;
after obtaining the correct downhole information, the microcontroller 15 communicates with the wireless communication device through a serial port, and reports the obtained signal to the control center through the internet;
when the control center needs to modify the parameters of the underground equipment, the data are sent to a wellhead device through the Internet, and the wellhead device encodes corresponding information; after modulation, digital signals are converted into analog signals through the DA, the analog signals are sent to the input end of a power amplifier through the DA output filter, the power amplifier 23 converts the analog signals into underwater acoustic signals through the transducer 7 after modulating and amplifying the analog signals, and the underwater acoustic signals are sent to underground underwater acoustic communication equipment.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A wellhead underwater acoustic transceiver device for a water injection well is characterized by comprising:
the upper joint (1) is connected with a wellhead of a water injection well, and the upper joint (1) is connected with the upper outer sleeve (2);
the lower joint (9), the lower joint (9) is connected with the wellhead of the water injection well, and the lower joint (9) is connected with the lower outer sleeve (8);
the upper joint and the lower joint are connected through the adapter (6);
a transducer (7), the transducer (7) being connected to the crossover sub (6);
the inner sleeve (4), the said inner sleeve (4) is installed in said upper joint (1), said lower joint (9);
the circuit board (3), install on circuit board fixed plate (5) circuit board fixed plate (3), install circuit board fixed plate (5) on endotheca (4), circuit board (3) are connected with the output of transducer (7).
2. Wellhead hydroacoustic transceiver device for water injection well according to claim 1, characterized in that said upper connector 1,
The upper outer sleeve (2), the inner sleeve (4), the conversion joint (6) and the lower joint (9) form an eccentric circular ring structure.
3. Wellhead acoustic transceiver device according to claim 2, characterized by the fact that at the lower joint (9) there is a water injection channel and an acoustic channel.
4. Wellhead acoustic transceiver according to claim 2, characterised in that the transducer is located in the structure of an eccentric ring formed by the lower joint (9) and the converter (7).
5. The wellhead hydroacoustic transceiver device of claim 2, wherein the circuit board includes an hydroacoustic transmitting circuit and an hydroacoustic receiving circuit;
the underwater sound transmitting circuit comprises a DA output filter (19), a power amplifier (23), a power amplifier output filter (22), a blocking capacitor (18), a boosting transformer (14) and an output power matching circuit (10);
the underwater sound receiving circuit comprises a receiving and transmitting combined circuit (11), a preamplifier (12) and a power supply bias circuit (13).
6. The acoustic transceiver at wellhead of water injection well according to claim 2, characterized in that the output end of the transmitting and receiving combined circuit (11) of the acoustic transmitting circuit is connected with a preamplifier (12) through a blocking capacitor, and the output end of the preamplifier (12) is connected with an AD interface on a microcontroller (15);
the input voltage of the underground equipment is converted by a high-frequency switching power supply (17) and then is connected with an LDO power supply (16), and the output end of the LDO power supply (16) is respectively connected with a preamplifier (12), a microcontroller (15) and a power supply bias circuit (13).
7. A wellhead hydroacoustic transceiver device as claimed in claim 2, characterised in that the DA output interface of the microcontroller (15) is connected to a DA output filter (19) of the hydroacoustic transmission circuit, the output of the DA output filter (19) being connected to the signal input of a power amplifier (23);
the output of the power amplifier (23) is connected with a DA output filter (19), the DA output filter (19) is connected with a DC blocking capacitor (18) and then connected with a boosting transformer (14), the output of the boosting transformer (14) is connected with an output matching circuit (8), an output power matching circuit (10) is connected with a transmitting and receiving combined circuit (11), and the transmitting and receiving combined circuit (11) is connected with the energy converter (7).
8. The acoustic transceiver at wellhead of water injection well according to claim 2, characterized in that the input voltage of the equipment on the well is converted by the high frequency switch power supply (17) and then connected with the LDO power supply (16), and the output of the LDO power supply (16) is respectively connected with the preamplifier (12), the microcontroller (15) and the power supply bias circuit (13).
9. A wellhead hydroacoustic transceiver device as claimed in claim 2, characterised in that said power amplifier (23) is connected to a power amplifier failure circuit (24), said power amplifier failure circuit (24) being connected to said microcontroller (15), said microcontroller (15) being connected to a wireless communication module DTU (20).
10. A communication method using the wellhead hydroacoustic transceiver device for water injection well according to claims 1 to 9,
receiving the underwater acoustic signals through a receiving and transmitting combined circuit (11), filtering and amplifying the underwater acoustic signals through a preamplifier (12), converting analog signals into digital signals through an AD converter built in a microcontroller (15), processing the digital signals after conversion, judging whether the signals are signals sent by underground underwater acoustic communication equipment or not, if not, continuing to complete the steps, demodulating the signals in the next period of time after detecting the signals sent by the underground underwater acoustic signals through the signals, verifying the signals after analyzing the corresponding information, and correcting the signals to obtain correct underground information;
after obtaining the correct downhole information, the microcontroller (15) communicates with the wireless communication equipment through a serial port, and reports the obtained signal to the control center through the Internet;
when the control center needs to modify the parameters of the underground equipment, the data are sent to a wellhead device through the Internet, and the wellhead device encodes corresponding information; after modulation, digital signals are converted into analog signals through a DA (digital-to-analog) output filter and sent to the input end of a power amplifier, the power amplifier (23) modulates and amplifies the analog signals, and then the digital signals are converted into underwater acoustic signals through the transducer (7) and sent to underground underwater acoustic communication equipment.
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| CN202011049605.1A CN112145138A (en) | 2020-09-29 | 2020-09-29 | Water injection well wellhead underwater sound transmitting and receiving device and communication method |
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| CN202011049605.1A CN112145138A (en) | 2020-09-29 | 2020-09-29 | Water injection well wellhead underwater sound transmitting and receiving device and communication method |
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| CN114151051A (en) * | 2020-09-07 | 2022-03-08 | 大庆友声科技有限公司 | Wellhead underwater acoustic transceiver for water injection well |
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2020
- 2020-09-29 CN CN202011049605.1A patent/CN112145138A/en active Pending
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| CN101871340A (en) * | 2010-06-18 | 2010-10-27 | 杨忠芳 | Ultrasonic measured and controlled water distributing device |
| CN202832516U (en) * | 2012-06-21 | 2013-03-27 | 中国石油天然气股份有限公司 | Oil pumping well wireless transmission device from ground to underground well |
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Application publication date: 20201229 |