CN112412401A - Wireless measurement-based pumping unit intermittent pumping control system and method thereof - Google Patents
Wireless measurement-based pumping unit intermittent pumping control system and method thereof Download PDFInfo
- Publication number
- CN112412401A CN112412401A CN202011412971.9A CN202011412971A CN112412401A CN 112412401 A CN112412401 A CN 112412401A CN 202011412971 A CN202011412971 A CN 202011412971A CN 112412401 A CN112412401 A CN 112412401A
- Authority
- CN
- China
- Prior art keywords
- pumping unit
- module
- underground
- electric
- rtu
- 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
- 238000005086 pumping Methods 0.000 title claims abstract description 107
- 238000005259 measurement Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000005236 sound signal Effects 0.000 claims abstract description 33
- 238000012545 processing Methods 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 15
- 230000001012 protector Effects 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 11
- 230000001174 ascending effect Effects 0.000 claims description 5
- 230000008021 deposition Effects 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims 1
- 239000003129 oil well Substances 0.000 abstract description 9
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000009530 blood pressure measurement Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 235000019198 oils Nutrition 0.000 description 37
- 238000010586 diagram Methods 0.000 description 6
- 210000002445 nipple Anatomy 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 108091026890 Coding region Proteins 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
-
- 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
- E21B47/12—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
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Acoustics & Sound (AREA)
- Remote Sensing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention provides a pumping unit interval pumping control system adopting wireless measurement and a method thereof, which at least comprise an underground acquisition device which is arranged in a shaft and used for acquiring the pressure and the temperature of the shaft, a ground signal processing device which is arranged at a wellhead and an RTU control device of a pumping unit; the underground acquisition device converts the acquired underground parameters into sound signals and transmits the sound signals to the ground signal processing device, the ground signal processing device converts the sound signals into electric signals and transmits the electric signals to the pumping unit RTU control device, and the pumping unit RTU control device controls the pumping unit to pump according to the received underground parameters. The underground wireless pressure measurement technology is applied, so that underground parameters are converted into sound signals to be transmitted to a wellhead, and wireless transmission of pressure and temperature is realized; the method realizes the oil well spacing based on the formation flow pressure spacing control, and has the characteristics of low failure rate, high measurement precision and excellent spacing degree. Meanwhile, the invention can realize the test of the formation pressure.
Description
Technical Field
The invention relates to the field of petroleum measurement, in particular to a pumping unit intermittent pumping control system adopting wireless measurement and a method thereof.
Background
As the oil field enters the later stage of exploration and development, the yield is gradually reduced year by year, no natural capacity exists, and the oil pumping unit is adopted for production. For low-yield and low-efficiency wells, even after the minimum pumping parameter is adjusted, the phenomenon of 'empty pumping' still exists, so that the problems of large reactive loss, large abrasion of pumping equipment, pipes and rods, short pump inspection period of an oil well and the like are caused.
At present, the oil field is mainly realized by adopting an intermittent method to solve the problem of air pumping, and the intermittent operation of the oil field is mainly realized by determining the timing starting and stopping of the oil well according to the data of the oil well yield, an indicator diagram, the working fluid level and the like. The method is unscientific in determining the time interval between the starting and stopping of the pumping well, cannot change along with the change of the working condition of the pumping well, and has the problems of high requirement on the responsibility of post workers, high management and maintenance difficulty and the like.
Disclosure of Invention
The invention aims to provide a pumping unit intermittent pumping control system adopting wireless measurement and a method thereof, so as to overcome the technical defects.
In order to solve the technical problem, the invention provides a pumping unit intermittent pumping control system adopting wireless measurement, which at least comprises an underground acquisition device, a ground signal processing device and a pumping unit RTU control device, wherein the underground acquisition device is arranged in a shaft and is used for acquiring the pressure and the temperature of the shaft;
the underground acquisition device converts the acquired underground parameters into sound signals and transmits the sound signals to the ground signal processing device, the ground signal processing device converts the sound signals into electric signals and transmits the electric signals to the pumping unit RTU control device, and the pumping unit RTU control device controls the pumping unit to pump according to the received underground parameters.
Furthermore, the underground acquisition device comprises an oil pipe with two blocked ends, and a pressure sensor for acquiring underground pressure, a temperature sensor for acquiring underground temperature, a thermoelectric converter, a battery short section, a control circuit, an electric control switch and an electroacoustic transducer are packaged in the inner cavity of the oil pipe;
the control circuit acquires an underground pressure value and an underground temperature value, the control circuit controls the electroacoustic transducer to be powered on or powered off through the electric control switch, the electroacoustic transducer converts received electric signals into sound signals in the powered-on state, and the emitted sound pulses are transmitted to the ground signal processing device along the inner cavity of the oil pipe in an ascending mode;
the underground heat energy is converted into electric energy by the thermoelectric converter, the electric energy is stored in the battery nipple, and the battery nipple supplies power for the pressure sensor, the temperature sensor, the control circuit, the electric control switch and the electroacoustic transducer.
Preferably, the pressure sensor and the thermoelectric converter are fixedly installed at the bottom of the oil pipe through threads, the temperature sensor is adhered to the bottom of the oil pipe, and the battery short section, the control circuit, the electric control switch and the electroacoustic transducer are all installed on the inner wall of the oil pipe.
Furthermore, the ground signal processing device comprises a decoding module, a main control module, a power module storage module and a display module which are packaged in the explosion-proof cabinet body, and also comprises a receiving transducer which is arranged below a wellhead flange and covers the inner diameter of a shaft;
sound pulses emitted by the electroacoustic transducer are transmitted to the receiving transducer along the inner cavity of the oil pipe in an ascending mode, sound signals are converted into electric signals by the receiving transducer and transmitted to the decoding module, the decoded signals are transmitted to the storage module and the display module through the main control module, and the underground pressure value and the underground temperature value are displayed and stored on site;
the receiving transducer, the decoding module, the main control module, the storage module and the display module are electrically connected to the power supply module, and the power supply module supplies power to the power supply module.
Furthermore, the pumping unit RTU control device comprises a switching power supply, an RTU controller, an anti-surge protector, a wireless communication module, an electric quantity acquisition module, a relay group and a voice alarm module, wherein the switching power supply, the RTU controller, the anti-surge protector, the wireless communication module, the electric quantity acquisition module and the relay group are packaged in the cabinet body;
the wireless communication module is electrically connected with the RTU controller to realize data remote transmission;
the electric quantity acquisition module is electrically connected with the RTU controller and acquires three-phase electric parameters of the oil pumping unit;
the relay group is electrically connected with the RTU controller and controls the starting and stopping of the pumping unit;
the voice alarm module is electrically connected with the RTU controller to realize voice prompt when the pumping unit is started and stopped;
the RTU controller, the wireless communication module, the electric quantity acquisition module, the relay group and the voice alarm module are electrically connected with the anti-surge protector to protect the RTU control device of the pumping unit;
the switching power supply supplies power for the RTU controller, the anti-surge protector, the wireless communication module, the electric quantity acquisition module, the relay group and the voice alarm module.
The invention also protects a pumping unit intermittent pumping control method adopting wireless measurement, which at least comprises a pumping unit intermittent pumping control system adopting wireless measurement, and the specific control method comprises the following steps:
the underground acquisition device acquires an underground pressure value and an underground temperature value and converts the underground pressure value and the underground temperature value into a sound signal;
the ground signal processing device receives the sound signal and converts the sound signal into an electric signal;
the RTU control device of the oil pumping unit receives an electric signal;
the method comprises the following steps of (1) calling an underground temperature value in an RTU control device of the pumping unit to predict a wax deposition rule;
the underground pressure value in the RTU control device of the pumping unit is adjusted and marked as P;
obtaining a sum from the IPR curveRange of flow pressure [ P ]wf1，Pwf2]；
If P < Pwf1Stopping the oil pumping unit;
if P > Pwf2And then the pumping unit is started.
The invention has the following beneficial effects:
the invention provides a pumping unit interval pumping control system adopting wireless measurement and a method thereof, which skillfully apply the underground wireless pressure measurement technology, convert underground parameters into sound signals and transmit the sound signals to a wellhead, and realize the wireless transmission of pressure and temperature; the method realizes the oil well spacing based on the formation flow pressure spacing control, and has the characteristics of low failure rate, high measurement precision and excellent spacing degree. Meanwhile, the invention can realize the test of the formation pressure.
In order to make the aforementioned and other objects of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic diagram of a pumping unit intermittent pumping control system using wireless measurement.
Fig. 2 is a schematic structural diagram of a downhole acquisition device.
FIG. 3 is a schematic diagram of the connection of the downhole acquisition device.
Fig. 4 is a schematic structural diagram of the ground signal processing device.
Fig. 5 is a schematic structural diagram of an oil pumping unit RTU control device.
Description of reference numerals:
A1. an oil pipe; A2. a pressure sensor; A3. a temperature sensor; A4. a thermoelectric converter; A5. a battery nipple; A6. a control circuit; A7. an electric control switch; A8. an electroacoustic transducer;
B1. an explosion-proof cabinet body; B2. a receiving transducer; B3. a decoding module; B4. a main control module; B5. a power supply module; B6. a storage module; B7. a display module;
C1. a cabinet body; C2. a switching power supply; c3, RTU controller; C4. an anti-surge protector; C5. a wireless communication module; C6. an electric quantity acquisition module; C7. a relay group; C8. and a voice alarm module.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
In the present invention, the upper, lower, left and right in the drawings are regarded as the upper, lower, left and right of the pumping unit intermittent pumping control system using wireless measurement described in this specification.
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
The first embodiment:
the embodiment relates to an intermittent pumping control system of an oil pumping unit by adopting wireless measurement, which at least comprises an underground acquisition device, a ground signal processing device and an RTU (remote terminal unit) control device, wherein the underground acquisition device is arranged in a shaft and is used for acquiring the pressure and the temperature of the shaft;
referring to fig. 1, the underground acquisition device converts the acquired underground parameters into sound signals and transmits the sound signals to the ground signal processing device, the ground signal processing device converts the sound signals into electric signals and transmits the electric signals to the pumping unit RTU control device, and the pumping unit RTU control device controls the pumping unit to pump according to the received underground parameters.
The downhole acquisition device is intended to obtain downhole temperature and pressure values,the wax precipitation law can be predicted according to the downhole temperature value, the downhole pressure value reflects the downhole real-time pressure P, the real-time pressure P is compared with the reasonable flow pressure of the IPR curve, and if P is less than Pwf1Stopping the oil pumping unit; if P > Pwf2And then the pumping unit is started.
P is abovewf1Is a lower limit value of the reasonable flow pressure, Pwf2The upper limit value of the reasonable flow pressure is obtained by a known technology, and is not described herein any more, and only described briefly, as follows:
according to the IPR curve of the oil well, the output of the pumping unit well is influenced when the flowing pressure is too large or too small, and the output of the oil well can be maximized only when the flowing pressure is in a reasonable range, so that the reasonable flowing pressure is adopted as the starting and stopping control standard of the oil well in the implementation mode, and the reasonable flowing pressure determination method comprises the following steps:
according to the theory of downhole seepage, the following formula can be derived:
q0-well production;
J0-fluid production index;
fw-water cut;
pr-formation pressure;
pwf-a flow pressure;
r-original gas-oil ratio.
Obtaining a reasonable flow pressure range [ P ] through serial derivation solutionwf1，Pwf2]In which P iswf1＝pwf-0.5MPa，Pwf1＝pwf+0.5MPa。
It should be noted that, in the present embodiment, the downhole collecting device is used for collecting pressure and temperature, but is not limited thereto, and other downhole parameters may also be obtained according to actual requirements, which is not exemplified herein.
After the underground acquisition device obtains the underground parameters, the underground parameters are electric signals at the moment, the electric signals are converted into sound signals, the sound signals are transmitted to the ground signal processing device in the form of sound pulses, the sound signals are converted into the electric signals and transmitted to the pumping unit RTU control device, and the pumping unit RTU control device controls the pumping unit to pump between rooms according to the received underground parameters.
Second embodiment:
on the basis of the first embodiment, as shown in fig. 2, the downhole collection device comprises an oil pipe a1 with two ends plugged, a pressure sensor a2 for collecting downhole pressure, a temperature sensor A3 for collecting downhole temperature, a thermoelectric converter a4, a battery short section a5, a control circuit a6, an electric control switch a7 and an electroacoustic transducer A8 are packaged in the inner cavity of the oil pipe a 1;
referring to fig. 3, a control circuit a6 obtains a downhole pressure value and a downhole temperature value, the control circuit a6 controls an electroacoustic transducer A8 to be powered on or powered off through an electric control switch a7, in a powered-on state, the electroacoustic transducer A8 converts a received electric signal into a sound signal, and a sent sound pulse is transmitted to a ground signal processing device along an inner cavity of an oil pipe a1 in an upward mode;
the underground heat energy is converted into electric energy by a thermoelectric converter A4, the electric energy is stored in a battery nipple A5, and a battery nipple A5 supplies power for a pressure sensor A2, a temperature sensor A3, a control circuit A6, an electric control switch A7 and an electroacoustic transducer A8.
The two ends of the oil pipe A1 are blocked to ensure that the oil-water mixture can not invade the inside of the oil pipe A1.
The pressure sensor A2 and the thermoelectric converter A4 are fixedly installed at the bottom of the oil pipe A1 through threads, the temperature sensor A3 is pasted at the bottom of the oil pipe A1, and the battery pup joint A5, the control circuit A6, the electric control switch A7 and the electroacoustic transducer A8 are all installed on the inner wall of the oil pipe A1.
The control circuit A6 accurately acquires the measured values of the pressure sensor A2 and the temperature sensor A3, the on-off control of the electroacoustic transducer A8 is realized by controlling the electric control switch A7, and when the electroacoustic transducer A8 is electrified, sound pulses are emitted; when electroacoustic transducer A8 is de-energized, no sound is emitted.
Specifically, the method comprises the following steps:
the control circuit A6 controls the power on and off of the electroacoustic transducer A8 at regular time, for example, the timing setting can be 30 minutes, 1 hour and 2 hours … …, after the measured values of the pressure sensor A2 and the temperature sensor A3 are collected, the control circuit A6 generates sound pulses through the on of the electroacoustic transducer A8, and the sound pulses are sent out in a coded mode, wherein the coding method is as follows:
by adopting a differential Manchester coding method, the self-synchronizing capacity and the good anti-interference performance can be realized, but each code element is adjusted into two levels, the middle of each bit has a jump, the jump in the middle of the bit is used as a clock signal and a data signal, the jump from low to high represents '1', the jump from high to low represents '0', and the data transmission rate is only 1/2 of the modulation rate;
meanwhile, in order to facilitate decoding, when encoding, a message comprises a sending mark code, a pressure code, a temperature code and a check code, wherein the sending mark code and the check code are fixed values and are convenient to identify, and the pressure code and the temperature code are encoded according to actual measurement, and the method specifically comprises the following steps:
flag code (2 bits): set to 0, corresponding to manchester encoding of 01;
pressure encoding (14 bits): the measured pressure is 10.45MPa, the pressure value is rounded, 1 digit decimal is reserved, namely 105 is obtained, 105 is converted into binary data, namely 1101001, and the corresponding Manchester code is 10100110010110;
temperature encoding (20 bits): the measured temperature is 80.25 ℃, then the temperature value is rounded, 1 digit decimal is reserved, namely 803, 803 is converted into binary data, namely 1100100011, and the corresponding Manchester code is 10100101100101011010;
check code (2 bits): set to 1, corresponds to manchester encoding 10.
In summary, when the pressure acquisition value is 10.45MPa and the temperature acquisition value is 80.25 ℃, the Manchester coding sequence is as follows:
01 10 10 01 10 01 01 10 10 10 01 01 10 01 01 01 10 10 10。
as shown in fig. 4, the ground signal processing device includes a decoding module B3, a main control module B4, a power module B5, a storage module B6 and a display module B7 which are packaged in a flameproof cabinet body B1, and further includes a receiving transducer B2 which is installed under a wellhead flange, and the receiving transducer B2 covers the inner diameter of a shaft;
sound pulses emitted by an electroacoustic transducer A8 are transmitted to a receiving transducer B2 along the inner cavity of an oil pipe A1 in an ascending manner, sound signals are converted into electric signals by the receiving transducer B2 and transmitted to a decoding module B3, the decoded signals are transmitted to a storage module B6 and a display module B7 through a main control module B4, and downhole pressure values and downhole temperature values are displayed and stored on site;
the receiving transducer B2, the decoding module B3, the main control module B4, the storage module B6 and the display module B7 are electrically connected to the power supply module B5, and the power supply module B5 supplies power to the power supply module.
The main control module B4 is used for obtaining the sound pulse sent by the well to the well mouth, and obtaining the pressure and temperature in the well.
As shown in fig. 5, the pumping unit RTU control device includes a switching power supply C2, an RTU controller C3, an anti-surge protector C4, a wireless communication module C5, an electric quantity acquisition module C6, a relay group C7, which are packaged in a cabinet C1, and further includes a voice alarm module C8 installed outside the cabinet C1;
the wireless communication module C5 is electrically connected with the RTU controller C3 to realize data remote transmission;
the electric quantity acquisition module C6 is electrically connected with the RTU controller C3 and acquires three-phase electric parameters of the oil pumping unit;
the relay group C7 is electrically connected with the RTU controller C3 and controls the starting and stopping of the oil pumping unit;
the voice alarm module C8 is electrically connected with the RTU controller C3 to realize voice prompt when the pumping unit is started and stopped;
the RTU controller C3, the wireless communication module C5, the electric quantity acquisition module C6, the relay group C7 and the voice alarm module C8 are electrically connected with the anti-surge protector C4 to protect the RTU control device of the oil pumping unit;
the switching power supply C2 supplies power to an RTU controller C3, a surge protector C4, a wireless communication module C5, an electric quantity acquisition module C6, a relay group C7 and a voice alarm module C8.
The switching power supply C2 is used for supplying power to the whole RTU control system (the oil pumping unit RTU control device); the anti-surge protector C4 realizes the protection of the whole RTU control system; the wireless communication module C5 is connected with the RTU controller C3 through a radio frequency transmission line, so that the data remote transmission function of the RTU controller C3 is realized; the electric quantity acquisition module C6 is connected with the RTU controller C3 through a lead to realize the acquisition of three-phase electric power of the oil pumping unit; the relay group C7 is connected with the RTU controller C3 through a lead to realize the start and stop control of the oil pumping unit; the voice alarm module C8 is connected with the RTU controller C3 through a lead, so that the voice prompt function of the oil pumping unit during start and stop control is realized.
The third embodiment:
the embodiment provides a pumping unit intermittent pumping control method adopting wireless measurement, which at least comprises a pumping unit intermittent pumping control system adopting wireless measurement, and the specific control method comprises the following steps:
the underground acquisition device acquires an underground pressure value and an underground temperature value and converts the underground pressure value and the underground temperature value into a sound signal;
the ground signal processing device receives the sound signal and converts the sound signal into an electric signal;
the RTU control device of the oil pumping unit receives an electric signal;
the method comprises the following steps of (1) calling an underground temperature value in an RTU control device of the pumping unit to predict a wax deposition rule;
the underground pressure value in the RTU control device of the pumping unit is adjusted and marked as P;
obtaining a reasonable flow pressure range [ P ] according to the IPR curvewf1，Pwf2]；
If P < Pwf1Stopping the oil pumping unit;
if P > Pwf2And then the pumping unit is started.
Firstly, a downhole acquisition device measures formation pressure (flow pressure) and a temperature value, after Manchester encoding, coded signals are transmitted to a ground receiving module along an oil pipe through an electroacoustic transducer in an acoustic pulse mode; secondly, the receiving module converts the received sound pulse signals into electric signals, and the electric signals are decoded by the decoding module to obtain real pressure values and real temperature values; and finally, the well mouth RTU control system obtains underground pressure values and temperature values from the ground signal control processor through signal cables, and then realizes the start-stop control of the pumping unit according to an oil well interval pumping control algorithm.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (6)
1. A pumping unit intermittent pumping control system adopting wireless measurement is characterized by at least comprising an underground acquisition device which is arranged in a shaft and used for acquiring the pressure and the temperature of the shaft, a ground signal processing device which is arranged at a wellhead, and an RTU control device of a pumping unit;
the underground acquisition device converts the acquired underground parameters into sound signals and transmits the sound signals to the ground signal processing device, the ground signal processing device converts the sound signals into electric signals and transmits the electric signals to the pumping unit RTU control device, and the pumping unit RTU control device controls the pumping unit to pump according to the received underground parameters.
2. The pumping unit intermittent pumping control system adopting wireless measurement as claimed in claim 1, wherein the downhole collection device comprises an oil pipe (A1) with two ends plugged, a pressure sensor (A2) for collecting downhole pressure, a temperature sensor (A3) for collecting downhole temperature, a thermoelectric converter (A4), a battery short section (A5), a control circuit (A6), an electric control switch (A7) and an electroacoustic transducer (A8) are packaged in the inner cavity of the oil pipe (A1);
the control circuit (A6) acquires a downhole pressure value and a downhole temperature value, the control circuit (A6) controls the electric-acoustic transducer (A8) to be powered on or powered off through the electric control switch (A7), the electric-acoustic transducer (A8) converts received electric signals into sound signals in the powered-on state, and emitted sound pulses are transmitted to the ground signal processing device along the inner cavity of the oil pipe (A1) in an ascending mode;
the underground heat energy is converted into electric energy by a thermoelectric converter (A4), the electric energy is stored in a battery short section (A5), and the battery short section (A5) supplies power for a pressure sensor (A2), a temperature sensor (A3), a control circuit (A6), an electric control switch (A7) and an electroacoustic transducer (A8).
3. The pumping unit intermittent pumping control system adopting wireless measurement as claimed in claim 2, wherein the pressure sensor (a2) and the thermoelectric converter (a4) are both fixedly mounted at the bottom of the oil pipe (a1) through threads, the temperature sensor (A3) is adhered at the bottom of the oil pipe (a1), and the battery short section (a5), the control circuit (a6), the electric control switch (a7) and the electric acoustic transducer (A8) are all mounted on the inner wall of the oil pipe (a 1).
4. The pumping unit intermittent pumping control system adopting wireless measurement as claimed in claim 2, wherein the ground signal processing device comprises a decoding module (B3), a main control module (B4), a power supply module (B5), a storage module (B6) and a display module (B7) which are packaged in a flameproof cabinet body (B1), and further comprises a receiving transducer (B2) which is installed below a wellhead flange, and the receiving transducer (B2) covers the inner diameter of a shaft;
sound pulses emitted by an electroacoustic transducer (A8) are transmitted to a receiving transducer (B2) along the inner cavity of an oil pipe (A1) in an ascending mode, sound signals are converted into electric signals by the receiving transducer (B2) and transmitted to a decoding module (B3), the decoded signals are transmitted to a storage module (B6) and a display module (B7) through a main control module (B4), and downhole pressure values and downhole temperature values are displayed and stored in situ;
the receiving transducer (B2), the decoding module (B3), the main control module (B4), the storage module (B6) and the display module (B7) are electrically connected to the power supply module (B5), and the power supply module (B5) supplies power to the receiving transducer (B2), the decoding module (B3), the main control module (B4), the storage module (B6) and the display module (B7.
5. The pumping unit intermittent pumping control system adopting wireless measurement as claimed in claim 2, wherein the pumping unit RTU control device comprises a switching power supply (C2) packaged in a cabinet body (C1), an RTU controller (C3), an anti-surge protector (C4), a wireless communication module (C5), a power acquisition module (C6), a relay group (C7), and further comprises a voice alarm module (C8) installed outside the cabinet body (C1);
the wireless communication module (C5) is electrically connected with the RTU controller (C3) to realize data remote transmission;
the electric quantity acquisition module (C6) is electrically connected with the RTU controller (C3) and is used for acquiring the three-phase electric power of the oil pumping unit;
the relay group (C7) is electrically connected with the RTU controller (C3) and controls the starting and stopping of the oil pumping unit;
the voice alarm module (C8) is electrically connected with the RTU controller (C3) to realize the voice prompt when the pumping unit is started and stopped;
the RTU controller (C3), the wireless communication module (C5), the electric quantity acquisition module (C6), the relay group (C7) and the voice alarm module (C8) are electrically connected with the anti-surge protector (C4) to protect the RTU control device of the oil pumping unit;
the switching power supply (C2) supplies power to the RTU controller (C3), the anti-surge protector (C4), the wireless communication module (C5), the electric quantity acquisition module (C6), the relay group (C7) and the voice alarm module (C8).
6. A pumping unit intermittent pumping control method adopting wireless measurement is characterized by at least comprising the pumping unit intermittent pumping control system adopting wireless measurement according to any one of claims 1-5, and the specific control method is as follows:
the underground acquisition device acquires an underground pressure value and an underground temperature value and converts the underground pressure value and the underground temperature value into a sound signal;
the ground signal processing device receives the sound signal and converts the sound signal into an electric signal;
the RTU control device of the oil pumping unit receives an electric signal;
the method comprises the following steps of (1) calling an underground temperature value in an RTU control device of the pumping unit to predict a wax deposition rule;
the underground pressure value in the RTU control device of the pumping unit is adjusted and marked as P;
obtaining a reasonable flow pressure range [ P ] according to the IPR curvewf1，Pwf2]；
If P < Pwf1Stopping the oil pumping unit;
if P > Pwf2And then the pumping unit is started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011412971.9A CN112412401A (en) | 2020-12-04 | 2020-12-04 | Wireless measurement-based pumping unit intermittent pumping control system and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011412971.9A CN112412401A (en) | 2020-12-04 | 2020-12-04 | Wireless measurement-based pumping unit intermittent pumping control system and method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112412401A true CN112412401A (en) | 2021-02-26 |
Family
ID=74774878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011412971.9A Pending CN112412401A (en) | 2020-12-04 | 2020-12-04 | Wireless measurement-based pumping unit intermittent pumping control system and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112412401A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338909A (en) * | 2021-08-09 | 2021-09-03 | 天津市正方科技发展有限公司 | Pumping unit fault inspection system based on audio and sound collection method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1217850A (en) * | 1982-07-21 | 1987-02-10 | Charles L. Dennis | Method and system of data transmission for a borehole logging tool |
| EP0526246A2 (en) * | 1991-07-31 | 1993-02-03 | Gec-Marconi Limited | Data transmission along a borehole |
| CN103944251A (en) * | 2013-01-17 | 2014-07-23 | 上海奇亚特能源股份有限公司 | Power supply device and oil pumping unit system with same |
| CN203838525U (en) * | 2013-12-31 | 2014-09-17 | 大庆高新区中环电力控制系统有限公司 | Internet of Things oil pumping unit numerical control device |
| CN203905940U (en) * | 2014-04-30 | 2014-10-29 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | Oil well sound wave wireless testing system |
| US20180051555A1 (en) * | 2015-03-25 | 2018-02-22 | Ge Oil & Gas Esp, Inc. | System and method for real-time condition monitoring of an electric submersible pumping system |
| CN109267997A (en) * | 2018-09-30 | 2019-01-25 | 西安海联石化科技有限公司 | Collecting and distributing type hydrodynamic face monitoring method |
| US20190128080A1 (en) * | 2016-05-26 | 2019-05-02 | Metrol Technology Limited | Apparatus and method for pumping fluid in a borehole |
| CN111622742A (en) * | 2020-07-14 | 2020-09-04 | 中国石油大学(华东) | Fluid self-generating parameter detection and communication system |
-
2020
- 2020-12-04 CN CN202011412971.9A patent/CN112412401A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1217850A (en) * | 1982-07-21 | 1987-02-10 | Charles L. Dennis | Method and system of data transmission for a borehole logging tool |
| EP0526246A2 (en) * | 1991-07-31 | 1993-02-03 | Gec-Marconi Limited | Data transmission along a borehole |
| CN103944251A (en) * | 2013-01-17 | 2014-07-23 | 上海奇亚特能源股份有限公司 | Power supply device and oil pumping unit system with same |
| CN203838525U (en) * | 2013-12-31 | 2014-09-17 | 大庆高新区中环电力控制系统有限公司 | Internet of Things oil pumping unit numerical control device |
| CN203905940U (en) * | 2014-04-30 | 2014-10-29 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | Oil well sound wave wireless testing system |
| US20180051555A1 (en) * | 2015-03-25 | 2018-02-22 | Ge Oil & Gas Esp, Inc. | System and method for real-time condition monitoring of an electric submersible pumping system |
| US20190128080A1 (en) * | 2016-05-26 | 2019-05-02 | Metrol Technology Limited | Apparatus and method for pumping fluid in a borehole |
| CN109267997A (en) * | 2018-09-30 | 2019-01-25 | 西安海联石化科技有限公司 | Collecting and distributing type hydrodynamic face monitoring method |
| CN111622742A (en) * | 2020-07-14 | 2020-09-04 | 中国石油大学(华东) | Fluid self-generating parameter detection and communication system |
Non-Patent Citations (3)
| Title |
|---|
| 宋旭东: "低渗油田降低机采井耗电量的做法及认识", 《石油石化节能》 * |
| 杨瑞等: "油井远程监控系统的应用与展望", 《石油化工自动化》 * |
| 马虹等 编著, 西安电子科技大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338909A (en) * | 2021-08-09 | 2021-09-03 | 天津市正方科技发展有限公司 | Pumping unit fault inspection system based on audio and sound collection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205078262U (en) | Oil gas well data acquisition and remote monitering system | |
| CN101915077A (en) | Pressure and the output self-adaptation measurement and control system of electric pump producing well | |
| CN101819436A (en) | System for monitoring running of oil extractor in oil field | |
| CN201765287U (en) | Isolated high-voltage leakage current measuring device | |
| CN104964716A (en) | Fluid flow detecting device facilitating selection of position of monitoring point | |
| CN112412401A (en) | Wireless measurement-based pumping unit intermittent pumping control system and method thereof | |
| CN105257523A (en) | Oilfield water injection pump monitoring system based on GPRS technology | |
| CN104481512A (en) | Water source well carrier liquid level detection system | |
| CN103940494A (en) | Water level signal device for high-position pool | |
| CN115788364A (en) | Coal bed gas well casing pressure alarming and controlling device | |
| CN106917622B (en) | Coal bed gas well monitoring system | |
| CN201835799U (en) | Coal bed gas well screw type discharging and producing system based on internet of things | |
| CN203846565U (en) | Signal device for preventing water overflowing of high-position water pool | |
| CN104406647A (en) | 802.11.ah wireless communication-based gas metering device and management system | |
| CN102704916B (en) | Remote control automatic liquid level monitoring device | |
| CN201334905Y (en) | Underground wireless pressure transmission transmitter | |
| CN106300264B (en) | Submersible motor protector | |
| CN206468341U (en) | A kind of oil field indicator card collection sensor based on lora technologies | |
| CN101949723B (en) | Wireless telemetering remote control water level instrument | |
| CN103573598B (en) | System and method for controlling submersible pump | |
| CN210829231U (en) | Offshore oilfield downhole electric pump working condition testing pipe column and testing device | |
| CN112682028A (en) | Device and method for real-time testing and wireless transmission of indicator diagram of sucker-rod pump of pumping well | |
| CN109519168A (en) | Underground pressure wireless transmission sound production device for measuring working fluid level | |
| CN204024644U (en) | Ground and underground equipment two-way communication inclinometer | |
| RU2646287C1 (en) | Telemetry system of wellbore monitoring |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210226 |