CN113323638A - Regulation and control separated layer water injection system using infrasonic wave and control method - Google Patents
Regulation and control separated layer water injection system using infrasonic wave and control method Download PDFInfo
- Publication number
- CN113323638A CN113323638A CN202110623904.XA CN202110623904A CN113323638A CN 113323638 A CN113323638 A CN 113323638A CN 202110623904 A CN202110623904 A CN 202110623904A CN 113323638 A CN113323638 A CN 113323638A
- Authority
- CN
- China
- Prior art keywords
- module
- water injection
- resistor
- infrasonic
- underground
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 183
- 238000002347 injection Methods 0.000 title claims abstract description 93
- 239000007924 injection Substances 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000006854 communication Effects 0.000 claims abstract description 51
- 238000004891 communication Methods 0.000 claims abstract description 50
- 239000003990 capacitor Substances 0.000 claims description 43
- 238000012545 processing Methods 0.000 claims description 43
- 230000001105 regulatory effect Effects 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 19
- 238000013500 data storage Methods 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 230000003321 amplification Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000002457 bidirectional effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 241000191291 Abies alba Species 0.000 description 1
- 108010038447 Chromogranin A Proteins 0.000 description 1
- 102100031186 Chromogranin-A Human genes 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005059 dormancy Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- CPTIBDHUFVHUJK-NZYDNVMFSA-N mitopodozide Chemical compound C1([C@@H]2C3=CC=4OCOC=4C=C3[C@H](O)[C@@H](CO)[C@@H]2C(=O)NNCC)=CC(OC)=C(OC)C(OC)=C1 CPTIBDHUFVHUJK-NZYDNVMFSA-N 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- E21B47/06—Measuring temperature or pressure
-
- 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
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
-
- 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
- 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
- E21B47/14—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 using acoustic waves
-
- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
Abstract
The invention discloses a regulation and control separated layer water injection system and a control method by using infrasonic waves, wherein the system comprises a ground control device, an underground intelligent water distributor, packers, a water injection wellhead, a water injection pipe column, a sleeve, a screen and a ball seat, the ground control device is connected with the underground intelligent water distributor, the underground intelligent water distributor is connected with the underground water injection pipe column, the sleeve is arranged on the underground inner wall, a plurality of packers are arranged on the water injection pipe column at intervals, the underground intelligent water distributor is arranged on the water injection pipe column between any two packers, and the screen and the ball seat are arranged at the tail end of the water injection pipe column. The invention adopts the infrasonic wave communication technology to realize the real-time wireless bidirectional rapid communication between the ground control device and the underground intelligent water distributor, has stable and reliable transmission, long transmission distance, low system power consumption, long service life and strong data real-time property, is simple and convenient to construct, simple to operate, pollution-free and low in cost, and can support real-time online one-key type seal checking and one-key type remote allocation.
Description
Technical Field
The invention belongs to the technical field of oilfield development, and particularly relates to a regulation and control separated layer water injection system utilizing infrasonic waves and a control method.
Background
Sound waves with a frequency less than 20Hz (hertz) are called infrasonic waves. Infrasonic waves are not easy to attenuate and are not easy to be absorbed by water and air, the wavelength of the infrasonic waves is very long, the propagation distance is very long, infrasonic wave frequency suitable for underground water injection transmission is found through experiments in the range of the infrasonic waves larger than 0HZ and smaller than 20HZ, the characteristics of concealment, penetrability, long distance, low energy consumption and the like of the infrasonic waves are fully utilized, and the infrasonic wave frequency control layered water injection system is applied to a water injection well control layered water injection system and is very beneficial.
The current commonly used regulation and control layered water injection system is a cable intelligent separate injection system and a wave code communication intelligent separate injection system. The cabled intelligent separate injection system adopts wired cables to carry out transmission communication between the ground controller and the underground water distributor, and has the advantages of high transmission rate and strong data real-time performance, but the cabled intelligent separate injection system has complex process, high cost, difficult construction, difficult equipment maintenance and no operation under pressure; the wave code communication intelligent separate injection system adopts pressure waves and flow waves to carry out wireless two-way communication between the ground controller and the underground water distributor, so that uploading and analysis of various data of an oil and gas production field and transmission of underground control instructions from the ground are realized. The method has the advantages of simple construction, wireless communication and operation with pressure; but the influence of stratum characteristics is large, the transmission efficiency is low (the average time for collecting 1 data point is 2 hours), the energy consumption is high, the data real-time performance is poor, the allocation operation process is complex, and the communication process can influence normal water injection to cause stratum pressure fluctuation.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide a system and a method for controlling stratified injection water by using infrasonic waves.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the embodiment of the invention provides a regulation and control separated layer water injection system utilizing infrasonic waves, which comprises a ground control device, an underground intelligent water distributor, packers, a water injection well head, a water injection pipe column, a sleeve, a screen and a ball seat, wherein the ground control device is connected with the underground intelligent water distributor, the underground intelligent water distributor is connected with the underground water injection pipe column, the sleeve is arranged on the underground inner wall, the water injection pipe column is provided with a plurality of packers at intervals, the underground intelligent water distributor is arranged on the water injection pipe column between any two packers, and the tail end of the water injection pipe column is provided with the screen and the ball seat.
In the scheme, the ground control device and the underground intelligent water distributor respectively comprise an infrasonic encoder, an infrasonic decoder, a data processing control end, a flow control unit, a data acquisition unit and a power supply system; the data processing control end is connected with the infrasonic wave encoder, the infrasonic wave decoder, the flow control unit and the data acquisition unit through internal buses respectively, and the power supply system is connected with the data processing control end and used for providing power.
In the above scheme, the ground control device further comprises a remote communication unit and a display module, and the power supply system is respectively connected with the remote communication unit and the display module and used for providing power.
In the above scheme, the infrasonic wave encoder includes an infrasonic wave generating module, a first power module, a first electric/acoustic conversion module, and a first communication module; the first communication module is sequentially connected with the first electric/acoustic conversion module and the infrasonic wave generation module, the first power supply module is connected with the first communication module, and the first communication module is connected with the data processing control end.
In the above scheme, the infrasonic wave decoder includes an infrasonic wave acquisition module, a filtering module, a signal amplification module, a second sound/electricity conversion module, a second power module and a second communication module; the infrasonic wave acquisition module is sequentially connected with a second sound/electricity conversion module, a filtering module and a signal amplification module, and the second communication module is respectively connected with a second communication module and a data processing control end.
In the above scheme, the data processing control terminal includes a processor, a data processing module, a data storage module, a third communication module and a third power module; the processor is respectively connected with the data processing module, the data storage module, the third communication module and the third power module, and the third power module is also respectively connected with the data storage module and the third communication module.
In the above solution, the flow control unit includes a digital-to-analog converter U4, a twelfth capacitor C12 to an eighteenth capacitor C18, a first adjustable resistor RK1, a second adjustable resistor RK2, a fourth resistor R4 to an eighth resistor R8, and an interface P3, the 2 nd and 5 th ends of the digital-to-analog converter U4 are commonly connected to the twelfth capacitor C12 and the thirteenth capacitor C13 in parallel and grounded, the 4 th and 11 th ends are sequentially and commonly connected to the second adjustable resistor RK2 and then connected to the 14 th end, the 7 th, 8 th, 9 th and 10 th ends are respectively connected to +3.3V through the eighth resistor R8, the seventh resistor R7, the sixth resistor R6 and the fifth resistor R5, the 15 th end is connected to the space between the 1 st end and the second adjustable resistor RK2 through the first adjustable resistor RK1, the 16 th end is connected to the second adjustable resistor RK2, the 18 th end is connected to the 1 st end of the interface P3, the fourth end is connected to the fourteenth capacitor R19 and the fourteenth capacitor R8620 and the fourteenth capacitor R828653, the 21 st end is connected with the side of a fourth resistor R4 through a sixteenth capacitor C16, the 23 st end is connected with the side of a fourth resistor R4, the 2 nd end of the interface P3 is grounded, and an eighteenth capacitor C18 is connected between the 1 st end and the 2 nd end in parallel.
In the above solution, the data acquisition unit 105 includes a first comparator U2A, a second comparator U2B, a sixth resistor R6, a ninth resistor R9, a seventh capacitor C7, a fourteenth capacitor C14, a sixteenth capacitor C16, a high-precision a/D conversion chip U4, a first pressure sensor NY, and a second pressure sensor WY, wherein 9 th and 10 th ends of the high-precision a/D conversion chip U4 are respectively connected to the 3 rd and 4 th ends of the first pressure sensor NY, a seventh capacitor C7 is connected in parallel between the two ends, 11 th and 12 th ends are respectively connected to the 3 rd and 4 th ends of the second pressure sensor WY, a fourteenth capacitor C14 is connected in parallel between the two ends, the 2 nd end is connected to an analog ground through a sixteenth capacitor C16, the 1 st end of the first pressure sensor NY is connected to the 1 st end of the first comparator U2A, the 2 nd end is connected to the analog ground through a sixth resistor R6, and the second end of the second comparator w 2B of the second pressure sensor WY, the 2 nd end is connected to the analog ground through a ninth resistor R9, the 2 nd end of the first comparator U2A is connected to the sixth resistor R6 side, the 3 rd end is connected to the 5 th end of the second comparator U2B, and the 6 th end of the second comparator U2B is connected to the ninth resistor R9 side.
In the scheme, the data processing control end 203 of the underground intelligent water distributor processes the data of the water injection flow, the formation pressure, the pressure in the pipe, the water injection temperature and the water nozzle opening degree, sends the data to the infrasonic wave encoder of the underground intelligent water distributor, encodes the data through the infrasonic wave encoder and sends an infrasonic wave signal to the ground control device.
An embodiment of the present invention further provides a control method for regulating and controlling a stratified water injection system using infrasonic waves, where the method includes: the ground control device sends coded infrasonic wave signal instructions to the underground intelligent water distributor, and the underground intelligent water distributor receives the infrasonic wave signal instructions;
the underground intelligent water distributor analyzes the infrasonic wave signal instruction to obtain an equipment address;
and comparing the equipment address with the equipment address, and if the equipment address is the same as the equipment address, executing a control instruction sent by the ground control device by the underground intelligent water distributor.
Compared with the prior art, the underground intelligent water distributor adopts an infrasonic wave communication technology, realizes real-time wireless bidirectional rapid communication between the ground control device and the underground intelligent water distributor, has the transmission rate far higher than that of the current commonly used flow wave and pressure wave communication modes, stable and reliable transmission, long transmission distance, low system power consumption, long service life and strong data real-time performance, is simple and convenient to construct, simple to operate, free of pollution and low in cost, and can support real-time online one-key type seal inspection and one-key type remote allocation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a regulated stratified water injection system using infrasonic waves according to an embodiment of the present invention;
FIG. 2 is a block diagram of a ground control device and an underground intelligent water distributor in a regulated and controlled stratified water injection system using infrasonic waves according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an underground intelligent water distributor in a regulated and controlled stratified water injection system using infrasonic waves according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an infrasonic encoder module of a surface control device and an underground intelligent water distributor in a regulation and control stratified water injection system using infrasonic waves according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an infrasonic decoder module of a surface control device and an underground intelligent water distributor in a regulated and controlled stratified water injection system using infrasonic waves according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a data processing control end in a regulated and controlled stratified water injection system using infrasonic waves according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a flow control unit in a zonal injection system using infrasonic waves according to an embodiment of the present disclosure;
FIG. 8 is a schematic structural diagram of a data acquisition unit in a regulated and controlled stratified water injection system using infrasonic waves according to an embodiment of the present invention;
FIG. 9 provides an example of a surface-to-downhole infrasonic wave code in a surface control device and a downhole intelligent water distributor in a regulated stratified water injection system using infrasonic waves in accordance with an embodiment of the present invention;
FIG. 10 provides an example of downhole-to-surface infrasonic wave encoding in a surface control device and a downhole intelligent water distributor in a regulated stratified water injection system using infrasonic waves in accordance with an embodiment of the present invention;
fig. 11 is a flowchart of a control method for regulating and controlling a stratified water injection system using infrasonic waves according to an embodiment of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a ground control device; 101-an infrasonic encoder; 102-an infrasonic decoder; 103-a data processing control terminal; 104-a flow control unit; 105-a data acquisition unit; 106-a remote communication unit; 107-power supply system; 108-a display module; 2. an underground intelligent water distributor, 3, a packer; 4. a water injection well mouth; 5. a water injection string; 6. a sleeve; 7. a screen mesh and a ball seat.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, the terms describing the positional relationships in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, article, or apparatus that comprises the element.
The embodiment of the invention provides a regulation and control separated layer water injection system utilizing infrasonic waves, as shown in figures 1-9, the system comprises a ground control device 1, an underground intelligent water distributor 2, packers 3, a water injection wellhead 4, a water injection pipe column 5, a sleeve 6, a screen and a ball seat 7, wherein the ground control device 1 is connected with the underground intelligent water distributor 2, the underground intelligent water distributor 2 is connected with the underground water injection pipe column 5, the sleeve 6 is arranged on the underground inner wall, a plurality of packers 3 are arranged on the water injection pipe column 5 at intervals, the underground intelligent water distributor 2 is arranged on the water injection pipe column 5 between any two packers 3, and the screen and the ball seat 7 are arranged at the tail end of the water injection pipe column 5.
The ground control device 1 is installed on a water injection well head 4 of a water injection well, a water inlet is connected with a water injection pump through a water injection pipeline, and a water outlet is connected with a water injection pipeline of a Christmas tree through a water injection pipeline. The underground intelligent water distributor 2 is connected with the pipe column 5 and is placed in the corresponding water injection layers, and the packers 3 are arranged among the water injection layers for separating.
The ground control device 1 and the underground intelligent water distributor 2 both comprise an infrasonic wave encoder 101, an infrasonic wave decoder 102, a data processing control end 103, a flow control unit 104, a data acquisition unit 105 and a power supply system 107; the data processing control terminal 103 is connected with the infrasonic wave encoder 101, the infrasonic wave decoder 102, the flow control unit 104 and the data acquisition unit 105 through an internal bus, and the power supply system 107 is connected with the data processing control terminal 103 for supplying power.
The flow control unit 104 comprises a digital-to-analog converter U4, a twelfth capacitor C12 to an eighteenth capacitor C18, a first adjustable resistor RK1, a second adjustable resistor RK2, a fourth resistor R4 to an eighth resistor R8, and an interface P3, wherein the 2 nd and 5 th ends of the digital-to-analog converter U4 are connected in parallel with the twelfth capacitor C12 and the thirteenth capacitor C13 and are grounded, the 4 th and 11 th ends are connected in sequence with the second adjustable resistor RK2 and then connected to the 14 th end, the 7 th, 8 th, 9 th and 10 th ends are connected in parallel with the +3.3V through the eighth resistor R8, the seventh resistor R7, the sixth resistor R6 and the fifth resistor R5, the 15 th end is connected between the 1 st end and the second adjustable resistor RK2 through the first adjustable resistor RK1, the 16 th end is connected to the second adjustable resistor RK2, the 18 th end is connected to the 1 st end of the interface P3, the 19 th end is connected in parallel with the fourteenth capacitor R2 nd, the fourteenth capacitor R8656 and the fourteenth capacitor R8653 and the fourteenth resistor R82 17, the 21 st end is connected with the side of a fourth resistor R4 through a sixteenth capacitor C16, the 23 st end is connected with the side of a fourth resistor R4, the 2 nd end of the interface P3 is grounded, and an eighteenth capacitor C18 is connected between the 1 st end and the 2 nd end in parallel.
The data acquisition unit 105 comprises a first comparator U2A, a second comparator U2B, a sixth resistor R6, a ninth resistor R9, a seventh capacitor C7, a fourteenth capacitor C14, a sixteenth capacitor C16, a high-precision a/D conversion chip U4, a first pressure sensor NY, and a second pressure sensor WY, wherein the 9 th and 10 th ends of the high-precision a/D conversion chip U4 are respectively connected with the 3 rd and 4 th ends of the first pressure sensor NY, a seventh capacitor C7 is connected between the two ends in parallel, the 11 th and 12 th ends are respectively connected with the 3 rd and 4 th ends of the second pressure sensor WY, a fourteenth capacitor C14 is connected between the two ends in parallel, the 2 nd end is connected to an analog ground through the sixteenth capacitor C16, the 1 st end of the first pressure sensor NY is connected with the 1 st end of the first comparator U2A, the 2 nd end is connected to the analog ground through the sixth resistor R6, the second end of the second comparator w7 of the second pressure sensor WY 84 is connected to the analog ground, the 2 nd end is connected to the analog ground through a ninth resistor R9, the 2 nd end of the first comparator U2A is connected to the sixth resistor R6 side, the 3 rd end is connected to the 5 th end of the second comparator U2B, and the 6 th end of the second comparator U2B is connected to the ninth resistor R9 side.
First pressure sensor NY is used for measuring interior pressure, second pressure sensor WY is used for measuring external pressure, and pressure sensor adopts the constant current power supply technique, compares current constant voltage power supply, and pressure sensor output signal is more stable, and is anti-interference strong, and high accuracy AD conversion chip U4 chooses AD7794 chip for use, 24 bit ADC, and 6 passageway simultaneous acquisition, compares 16 bit ADC data acquisition chip resolution ratio commonly used and has improved a lot, can effectual accurate analytic infrasonic signal, has improved product reliability.
The data processing control end is communicated with the flow control unit through an SP I bus, the data processing control end sends a regulating valve opening degree control instruction to the flow control unit, and the flow control unit receives the instruction, converts the instruction into a corresponding current signal and outputs the current signal to the electric actuator, so that the regulating of the opening degree of the regulating valve is controlled.
The ground control device 1 further comprises a remote communication unit 106 and a display module 108, and the power supply system 107 is respectively connected with the remote communication unit 106 and the display module 108 for supplying power.
The infrasonic wave encoder 101 comprises an infrasonic wave generating module, a first power supply module, a first electric/acoustic conversion module and a first communication module; the first communication module is sequentially connected with the first electric/acoustic conversion module and the infrasonic wave generation module, the first power supply module is connected with the first communication module, and the first communication module is connected with the data processing control end 103.
The infrasonic wave decoder 102 comprises an infrasonic wave acquisition module, a filtering module, a signal amplification module, a second sound/electricity conversion module, a second power supply module and a second communication module; the infrasonic wave acquisition module is sequentially connected with a second sound/electricity conversion module, a filtering module and a signal amplification module, and the second communication module is respectively connected with the second communication module and the data processing control terminal 103.
The data processing control terminal 103 comprises a processor, a data processing module, a data storage module, a third communication module and a third power module; the processor is respectively connected with the data processing module, the data storage module, the third communication module and the third power module, and the third power module is also respectively connected with the data storage module and the third communication module.
The data acquisition unit 105 is used for acquiring water injection pressure, water injection flow, water injection temperature and the opening degree of a flow regulating valve.
And the device is also used for collecting the formation pressure, the water injection flow, the water injection temperature, the water nozzle opening and the pressure in the pipe.
The data processing control end 103 of the underground intelligent water distributor 2 processes the water injection flow, the formation pressure, the pressure in the pipe, the water injection temperature and the water nozzle opening degree data, sends the data to the infrasonic wave encoder 101 of the underground intelligent water distributor 2, encodes the data through the infrasonic wave encoder 101, and sends an infrasonic wave signal to the ground control device 1.
The working process of the invention is as follows:
the system takes water in the water injection well pipe column 5 as a transmission medium and takes infrasonic waves as a carrier for signal transmission. The data processing control end 103 of the ground control device 1 receives the instruction through the remote communication unit 106, analyzes and sends the instruction to the infrasonic encoder 101, and the infrasonic encoder 101 encodes the instruction sent to the underground intelligent water distributor 2 and then transmits a digital infrasonic signal to the underground intelligent water distributor 2. The remote communication unit 106 is connected with the data processing control terminal 103 through an RS485 bus; the infrasonic encoder 101 and the data processing control terminal 103 are connected by an SPI bus.
The underground intelligent water distributor 2 monitors digital infrasonic signals sent by the ground control device 1 through the infrasonic decoder 102, analyzes the received digital infrasonic signals through the data processing control end 103, and finally sends instructions to the flow control unit 104 to adjust the opening degree of the water nozzle of the underground intelligent water distributor 2, so that the underground layered water injection flow adjustment is realized.
The data processing control end 103 of the underground intelligent water distributor 2 receives an underground data reading instruction from the ground control device 1, the data processing control end 103 processes the underground water injection flow, the formation pressure, the pipe pressure, the water nozzle opening degree, the water injection temperature and other data acquired by the data acquisition unit 105, then sends the data to the infrasonic wave encoder 101, encodes the data through the infrasonic wave encoder 101, and sends an infrasonic wave signal to the ground control device 1.
The infrasonic wave decoder 102 of the ground control device 1 monitors infrasonic wave signals sent by the underground intelligent water distributor 2 in real time, the infrasonic wave signals are analyzed through the data processing control end 103, and then the underground layered flow value, the formation pressure value, the in-pipe pressure value, the layered underground water distributor water nozzle opening value and the underground temperature value are displayed to workers through the remote communication unit 106 and the display module 108.
The infrasonic wave signal is a combination of an infrasonic wave fixed emission time T representing a high state representing "1" and an infrasonic wave fixed stop time T representing a low state representing "0" and is set as a square wave signal. The infrasonic wave decoder demodulates the infrasonic wave signal by using an incoherent demodulation technology.
The code of the ground control device 1 to the underground intelligent water distributor 2 is shown in figure 9 and comprises a wake-up code, an equipment address code, a data code and a check code; the awakening code is S, represents the duration time length of the infrasonic wave signal and is larger than the dormancy interval of the underground intelligent water distributor 2, when the underground intelligent water distributor 2 monitors the infrasonic wave signal, the underground intelligent water distributor 2 is awakened to enter a real-time dynamic monitoring mode, and a waiting time N is reserved between the awakening code and the equipment address code, so that the underground intelligent water distributor can correctly and completely receive the instruction of the ground control device 1; the device address code consists of a 3-bit binary code, totaling 23The device addresses of the water distributors from the first layer to the eighth layer are respectively expressed as 8 types; the data code consists of 8-bit binary code, and has a total of 28256 instructions are transmitted according to different numbers; the check code adopts binary even check; referring to fig. 9, the equipment address code is 100, the indication is 4, the data code is 10001011, and the indication is 139, so that the information transmitted by the surface control device 1 to the downhole intelligent water distributor 2 is the fourth layer downhole intelligent water distributor executing 139 instruction.
The code of the underground intelligent water distributor 2 to the ground control device 1 is shown in figure 10 and comprises a start code, an equipment address code, a data code and a check code, wherein the start code is represented by 2 high and 1 low; the device address code consists of a 3-bit binary code, totaling 23The device addresses of the water distributors from the first layer to the eighth layer are respectively expressed as 8 types; the data code consists of a 10-bit binary code, totaling 2101024 numbers, namely 3-bit effective numbers of underground data transmission, namely ten bits, one bit and decimal bits; the check code adopts binary even check; referring to fig. 10, the equipment address code is 100, which is indicated as 4, the data code is 1000101101, which is indicated as 557, so that the information transmitted by the downhole intelligent water distributor 2 to the surface control device 1 is the fourth layer of downhole intelligent water distributionThe stratified flow rate of the device was 55.7 square/day.
The embodiment of the invention also provides a control method for regulating and controlling the stratified water injection system by using the infrasonic waves, as shown in fig. 11, the method is realized by the following steps:
step 101: the ground control device 1 sends an encoded infrasonic signal instruction to the underground intelligent water distributor 2, and the underground intelligent water distributor 2 receives the infrasonic signal instruction;
specifically, the data processing control end 103 of the ground control device 1 sends the awakening instruction of the underground intelligent water distributor 2 to the infrasonic encoder 101, and the infrasonic encoder encodes the awakening instruction and sends an infrasonic signal instruction to the underground intelligent water distributor 2. The infrasonic wave decoder 202 of the underground intelligent water distributor 2 monitors the infrasonic wave signals at regular time, and if the awakening instruction is received, the infrasonic wave decoder 202 of the underground intelligent water distributor 2 becomes real-time monitoring.
The data processing control end 103 of the ground control device 1 sends the data instruction to the infrasonic wave encoder 101 of the ground control device 1, the infrasonic wave encoder 101 encodes the data instruction and sends an infrasonic wave signal instruction to the underground intelligent water distributor 2, and the infrasonic wave decoder 202 of the underground intelligent water distributor 2 receives the infrasonic wave signal.
The infrasonic signal is a combination of an infrasonic fixed emission time T representing a high state representing "1", and an infrasonic fixed silence time T representing a low state representing "0".
Step 102: the underground intelligent water distributor 2 analyzes the infrasonic wave signal instruction to obtain an equipment address;
step 103: and comparing the equipment address with the equipment address, if the equipment address is the same as the equipment address, executing a control instruction sent by the ground control device 1 by the underground intelligent water distributor 2, and if the equipment address is not the same as the equipment address, not performing any operation and entering a dormant state.
Specifically, if it is determined that the downhole intelligent water distributor 2 receives the instruction for controlling the opening of the water nozzle, the data processing control end 103 of the downhole intelligent water distributor 2 sends the instruction to the flow control unit 104 to control the size of the switch of the downhole water nozzle, so as to control the flow of the corresponding water injection layer.
And judging whether the underground intelligent water distributor 2 receives an instruction for reading underground dynamic data, sending the instruction to a data acquisition unit 105 by a data processing control end 103 of the underground intelligent water distributor 2 to acquire data of underground formation pressure, in-pipe pressure, water injection flow, water injection temperature and water nozzle opening, and sending an infrasonic signal to the ground control device 1 through an infrasonic encoder 101 of the underground intelligent water distributor 2.
The infrasonic wave decoder 101 of the ground control device 1 monitors and receives the infrasonic wave signals in real time, and the data processing control end 103 of the ground control device 1 analyzes the infrasonic wave signals, obtains underground formation pressure, layered water injection flow, pressure in the pipe, water injection temperature and water nozzle opening data, and displays the data to workers through the display module 108.
And finally, the underground intelligent water distributor 2 executes the instruction and enters a dormant state.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (10)
1. The system is characterized by comprising a ground control device, an underground intelligent water distributor, packers, a water injection well head, a water injection pipe column, a sleeve, a screen and a ball seat, wherein the ground control device is connected with the underground intelligent water distributor, the underground intelligent water distributor is connected with the underground water injection pipe column, the sleeve is arranged on the underground inner wall, the plurality of packers are arranged on the water injection pipe column at intervals, the underground intelligent water distributor is arranged on the water injection pipe column between any two packers, and the screen and the ball seat are arranged at the tail end of the water injection pipe column.
2. The regulation and control stratified water injection system by using infrasonic waves as claimed in claim 1, wherein the surface control device and the underground intelligent water distributor each comprise an infrasonic wave encoder, an infrasonic wave decoder, a data processing control end, a flow control unit, a data acquisition unit and a power supply system; the data processing control end is connected with the infrasonic wave encoder, the infrasonic wave decoder, the flow control unit and the data acquisition unit through internal buses respectively, and the power supply system is connected with the data processing control end and used for providing power.
3. The regulated and controlled stratified water injection system using infrasonic waves as claimed in claim 2, wherein the ground control device further comprises a remote communication unit and a display module, and the power supply system is respectively connected with the remote communication unit and the display module for supplying power.
4. The regulated stratified water injection system using infrasonic waves as claimed in claim 3, wherein the infrasonic wave encoder comprises an infrasonic wave generating module, a first power module, a first electric/acoustic conversion module and a first communication module; the first communication module is sequentially connected with the first electric/acoustic conversion module and the infrasonic wave generation module, the first power supply module is connected with the first communication module, and the first communication module is connected with the data processing control end.
5. The regulated stratified water injection system using infrasonic waves according to claim 4, wherein the infrasonic wave decoder comprises an infrasonic wave collection module, a filtering module, a signal amplification module, a second sound/electricity conversion module, a second power module and a second communication module; the infrasonic wave acquisition module is sequentially connected with a second sound/electricity conversion module, a filtering module and a signal amplification module, and the second communication module is respectively connected with a second communication module and a data processing control end.
6. The regulated stratified water injection system using infrasonic waves as claimed in claim 5, wherein the data processing control terminal comprises a processor, a data processing module, a data storage module, a third communication module and a third power module; the processor is respectively connected with the data processing module, the data storage module, the third communication module and the third power module, and the third power module is also respectively connected with the data storage module and the third communication module.
7. The system according to claim 6, wherein the flow control unit comprises a digital-to-analog converter U4, a twelfth capacitor C12 to an eighteenth capacitor C18, a first adjustable resistor RK1, a second adjustable resistor RK2, a fourth resistor R4 to an eighth resistor R8 and an interface P3, the 2 nd and 5 th ends of the digital-to-analog converter U4 are connected in parallel with the twelfth capacitor C12 and the thirteenth capacitor C13 and are grounded, the 4 th and 11 th ends are connected in sequence with the second adjustable resistor RK2 and then connected to the 14 th end, the 7 th, 8 th, 9 th and 10 th ends are connected between the 1 st end and the second adjustable resistor RK2 through the eighth resistor R8, the seventh resistor R7, the sixth resistor R6 and the fifth resistor R5 and are connected in +3.3V, the 15 th end is connected to the second adjustable resistor RK2 through the first adjustable resistor RK1 and the fourteenth resistor RK 5819, the fourteenth resistor RK 57323 and the fourth adjustable resistor RK 57323 are connected in parallel with the fourth adjustable resistor RK 4623, the 20 th end is connected with the fourth resistor R4 side through a seventeenth capacitor C17, the 21 st end is connected with the fourth resistor R4 side through a sixteenth capacitor C16, the 23 th end is connected with the fourth resistor R4 side, the 2 nd end of the interface P3 is grounded, and an eighteenth capacitor C18 is connected between the 1 st end and the 2 nd end in parallel.
8. The regulated stratified water injection system using infrasonic waves as claimed in claim 7, wherein the data collecting unit 105 comprises a first comparator U2A, a second comparator U2B, a sixth resistor R6, a ninth resistor R9, a seventh capacitor C7, a fourteenth capacitor C14, a sixteenth capacitor C16, a high-precision A/D conversion chip U4, a first pressure sensor NY and a second pressure sensor WY, wherein the 9 th and 10 th ends of the high-precision A/D conversion chip U4 are respectively connected with the 3 rd and 4 th ends of the first pressure sensor NY, and a seventh capacitor C7 is connected between the two ends in parallel, the 11 th and 12 th ends are respectively connected with the 3 rd and 4 th ends of the second pressure sensor WY, a fourteenth capacitor C14 is connected between the two ends in parallel, the 2 nd end is connected to an analog ground through a sixteenth capacitor C16, the 1 st end of the first pressure sensor NY is connected with the 1 st end of the first comparator U2A, the 2 nd end is connected with an analog ground through a sixth resistor R6, the 1 st end of the second pressure sensor WY is connected with the 7 th end of a second comparator U2B, the 2 nd end is connected with the analog ground through a ninth resistor R9, the 2 nd end of the first comparator U2A is connected with the sixth resistor R6 side, the 3 rd end is connected with the 5 th end of a second comparator U2B, and the 6 th end of the second comparator U2B is connected with the ninth resistor R9 side.
9. The regulated stratified water injection system using infrasonic waves as claimed in claim 7, wherein the data processing control end 203 of the downhole intelligent water distributor processes the data of the water injection flow, the formation pressure, the pressure in the pipe, the water injection temperature and the water nozzle opening degree, sends the processed data to an infrasonic wave encoder of the downhole intelligent water distributor, and sends infrasonic signals to the ground control device through encoding by the infrasonic wave encoder.
10. A control method of a regulated stratified water injection system using infrasonic waves as claimed in any one of claims 1 to 9, wherein the method comprises: the ground control device sends coded infrasonic wave signal instructions to the underground intelligent water distributor, and the underground intelligent water distributor receives the infrasonic wave signal instructions;
the underground intelligent water distributor analyzes the infrasonic wave signal instruction to obtain an equipment address;
and comparing the equipment address with the equipment address, and if the equipment address is the same as the equipment address, executing a control instruction sent by the ground control device by the underground intelligent water distributor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110623904.XA CN113323638A (en) | 2021-06-04 | 2021-06-04 | Regulation and control separated layer water injection system using infrasonic wave and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110623904.XA CN113323638A (en) | 2021-06-04 | 2021-06-04 | Regulation and control separated layer water injection system using infrasonic wave and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113323638A true CN113323638A (en) | 2021-08-31 |
Family
ID=77419676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110623904.XA Pending CN113323638A (en) | 2021-06-04 | 2021-06-04 | Regulation and control separated layer water injection system using infrasonic wave and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113323638A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116752935A (en) * | 2023-08-23 | 2023-09-15 | 西安洛科电子科技股份有限公司 | Ground control device for high-speed pulse communication and regulation and control method thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621921A (en) * | 2012-03-13 | 2012-08-01 | 江西省电力科学研究院 | Programmer for electric energy meters |
| US20140198617A1 (en) * | 2013-01-16 | 2014-07-17 | Saudi Arabian Oil Company | Method and Apparatus for In-Well Wireless Control Using Infrasound Sources |
| CN106089186A (en) * | 2016-08-21 | 2016-11-09 | 中国石油化工股份有限公司 | Subsection water injection well well head and shaft bottom signal wireless transmitter and radio transmitting method |
| CN106168126A (en) * | 2016-08-21 | 2016-11-30 | 中国石油化工股份有限公司 | A kind of layering section water injection well radio fest and control water dispensing apparatus and layering section water injection string thereof |
| CN109025926A (en) * | 2018-09-06 | 2018-12-18 | 中国石油化工股份有限公司 | A kind of centralized control type intelligence separate layer water injection string and regulator control system |
| CN109854216A (en) * | 2019-03-18 | 2019-06-07 | 中国石油化工股份有限公司 | The layered water injection method of water injection well depositing distributed communication |
| CN110067540A (en) * | 2018-01-19 | 2019-07-30 | 中国石油化工股份有限公司 | Realize that dispensing surveys the system for adjusting log signal transmitting |
| CN110761840A (en) * | 2019-09-20 | 2020-02-07 | 山东科技大学 | Coal mine goaf fire zone detection system and method based on infrasonic wave information transmission |
| CN210948621U (en) * | 2020-06-04 | 2020-07-07 | 西安洛科电子科技股份有限公司 | Double wave code communication intelligent separate injection device |
| CN212694294U (en) * | 2020-09-25 | 2021-03-12 | 西安洛科电子科技股份有限公司 | High pressure flow automatic regulating apparatus |
| CN215979331U (en) * | 2021-06-04 | 2022-03-08 | 西安洛科电子科技股份有限公司 | Regulation and control separated layer water injection system using infrasonic wave |
-
2021
- 2021-06-04 CN CN202110623904.XA patent/CN113323638A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621921A (en) * | 2012-03-13 | 2012-08-01 | 江西省电力科学研究院 | Programmer for electric energy meters |
| US20140198617A1 (en) * | 2013-01-16 | 2014-07-17 | Saudi Arabian Oil Company | Method and Apparatus for In-Well Wireless Control Using Infrasound Sources |
| CN106089186A (en) * | 2016-08-21 | 2016-11-09 | 中国石油化工股份有限公司 | Subsection water injection well well head and shaft bottom signal wireless transmitter and radio transmitting method |
| CN106168126A (en) * | 2016-08-21 | 2016-11-30 | 中国石油化工股份有限公司 | A kind of layering section water injection well radio fest and control water dispensing apparatus and layering section water injection string thereof |
| CN110067540A (en) * | 2018-01-19 | 2019-07-30 | 中国石油化工股份有限公司 | Realize that dispensing surveys the system for adjusting log signal transmitting |
| CN109025926A (en) * | 2018-09-06 | 2018-12-18 | 中国石油化工股份有限公司 | A kind of centralized control type intelligence separate layer water injection string and regulator control system |
| CN109854216A (en) * | 2019-03-18 | 2019-06-07 | 中国石油化工股份有限公司 | The layered water injection method of water injection well depositing distributed communication |
| CN110761840A (en) * | 2019-09-20 | 2020-02-07 | 山东科技大学 | Coal mine goaf fire zone detection system and method based on infrasonic wave information transmission |
| CN210948621U (en) * | 2020-06-04 | 2020-07-07 | 西安洛科电子科技股份有限公司 | Double wave code communication intelligent separate injection device |
| CN212694294U (en) * | 2020-09-25 | 2021-03-12 | 西安洛科电子科技股份有限公司 | High pressure flow automatic regulating apparatus |
| CN215979331U (en) * | 2021-06-04 | 2022-03-08 | 西安洛科电子科技股份有限公司 | Regulation and control separated layer water injection system using infrasonic wave |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116752935A (en) * | 2023-08-23 | 2023-09-15 | 西安洛科电子科技股份有限公司 | Ground control device for high-speed pulse communication and regulation and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110067540B (en) | System for realizing separate injection well measuring and adjusting signal transmission | |
| CN202832516U (en) | Oil pumping well wireless transmission device from ground to underground well | |
| CN215979331U (en) | Regulation and control separated layer water injection system using infrasonic wave | |
| CN106089186B (en) | Segmented water injection well mouth and well bottom signal wireless transmitting and receiving device and wireless transmission method | |
| CN104695917B (en) | Intelligent watering system | |
| CN113323638A (en) | Regulation and control separated layer water injection system using infrasonic wave and control method | |
| CN215565881U (en) | Infrasonic wave regulation and control module, ground control device and underground intelligent water distributor | |
| CN212160900U (en) | Pipeline landslide monitoring and early warning system | |
| CN110735621B (en) | Method and system for intelligent testing and adjusting underground wireless layered water distribution | |
| CN107313764B (en) | Cable-free oil extraction well layered production allocation device and method | |
| CN113323639A (en) | Infrasonic wave regulation and control module, ground control device and underground intelligent water distributor | |
| CN201738908U (en) | Water distributing device with ultrasonic measurement and control | |
| CN212927833U (en) | Automatic test and control device for working fluid level of cluster well group | |
| CN211987835U (en) | Remote automatic monitoring and purifying system for harmful gas in single-pile foundation of offshore wind turbine | |
| CN108729900B (en) | Self-powered underwater abandoned oil well monitoring system and monitoring method | |
| CN208703400U (en) | A kind of dynamic sealing means | |
| CN208532418U (en) | A kind of intelligent water purifier of flow on-line checking | |
| CN106353472A (en) | Online monitoring device of longitudinal section fixing type multi-parameter water quality | |
| CN218546709U (en) | Overwater monitoring system | |
| CN110593827A (en) | Layered water injection method | |
| CN205260023U (en) | Oil well producing fluid level degree of depth automatic monitoring appearance | |
| CN211692447U (en) | Oil well blowout preventer temperature and pressure monitoring system | |
| CN210953099U (en) | Noise data acquisition system of wind generating set and wind power plant | |
| CN108844575A (en) | The dedicated on-line monitoring system in airplane parking area and monitoring method | |
| CN219159028U (en) | Gas extraction monitoring facilities |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |