CN117823120A - Microwave water content monitoring and testing tubular column and method for rodless pump - Google Patents
Microwave water content monitoring and testing tubular column and method for rodless pump Download PDFInfo
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- CN117823120A CN117823120A CN202211202435.5A CN202211202435A CN117823120A CN 117823120 A CN117823120 A CN 117823120A CN 202211202435 A CN202211202435 A CN 202211202435A CN 117823120 A CN117823120 A CN 117823120A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 238000012544 monitoring process Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 30
- 238000011010 flushing procedure Methods 0.000 claims description 29
- 238000012806 monitoring device Methods 0.000 claims description 29
- 239000000523 sample Substances 0.000 claims description 20
- 238000004891 communication Methods 0.000 claims description 10
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- 238000013461 design Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000003129 oil well Substances 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 6
- 238000005070 sampling Methods 0.000 description 6
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- 238000010168 coupling process Methods 0.000 description 5
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- 238000005259 measurement Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
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- 230000008054 signal transmission Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 241000191291 Abies alba Species 0.000 description 1
- 240000004045 Cassia javanica Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The invention discloses a microwave water content monitoring test pipe column of a rodless pump and a method thereof. Based on the rodless pump multiparameter sensor, the real-time monitoring of pump outlet flow, temperature and pressure data is realized by adopting a modularized design, and the single-well online automatic metering pry is transferred to the underground, so that the investment cost and the management difficulty are further reduced.
Description
Technical Field
The invention belongs to the technical field of oilfield exploitation, and particularly relates to a microwave water content monitoring and testing tubular column of a rodless pump and a method.
Background
At present, the water content monitoring of each large oil field is mainly performed by manual sampling test, the sampling test needs manual inspection and sampling, and the samples are sent to laboratory test, so that the water content of the oil well is obtained, and the manual inspection and sampling workload is large due to the star-shaped distribution of the oil well. Meanwhile, the monitoring period of water content in the manual sampling test is 3-10 d/time, and the existence of the water content is in a dot band; the water-containing test condition is greatly affected by whether the oil well is out or not, manual operation and the like. A single well metering water-containing device is developed for part of oil fields represented by Xinjiang oil fields, so that the metering frequency and precision requirements are met, and the problems of large investment and ground maintenance still exist. Carrying out wellhead moisture meter monitoring experiments on part of oil fields; the water content in the annular output profile continuous logging combined instrument of the related patent oilfield production well is mainly measured by a dielectric method, so that the instrument is suitable for high-water-content wells, real-time monitoring cannot be realized by independently feeding a communication cable, continuous monitoring of a mechanical pumping production well cannot be realized, and along with the increase of the number of the application wells of the present domestic rodless pump, the underground liquid amount water content measurement or multi-parameter metering production is a means for realizing digitization and investment reduction of the oilfield.
Meanwhile, the cable type electric submersible pump is increasingly widely applied in the field of oilfield exploitation, breakthrough is needed in underground liquid production parameter monitoring, and a proper technology for solving the problems is not available at present.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a microwave water-containing monitoring test tubular column and a microwave water-containing monitoring test method for a rodless pump, so as to solve the problem that the underground liquid production parameters are difficult to monitor, acquire and monitor in the prior art.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
a microwave water content monitoring and testing tubular column of a rodless pump comprises a ground control device, a wet joint, a water content monitoring device and an electric submersible pump;
the wet joint, the water-containing monitoring device and the submersible electric pump are arranged in the oil pipe from top to bottom in sequence in sections; the wet joint is connected with the ground control device through a cable, and the wet joint is connected with the submersible electric pump through a cable;
the water-containing monitoring device is internally provided with an overcurrent test tube, and the lower end of the overcurrent test tube is connected with a lower joint;
the overcurrent test tube is internally provided with a water-containing probe, an electric control well flushing valve and a circuit bin; a well flushing liquid inlet channel is formed in the lower joint and is provided with a flowmeter, and the well flushing liquid inlet channel is communicated with the submersible electric pump; the electric control well flushing valve controls the on-off of a well flushing liquid inlet channel; the circuit bin is connected with the wet joint through a cable, and the water-containing probe, the electric control well flushing valve and the flowmeter are all connected with the circuit bin through wires.
The invention further improves that:
preferably, a temperature sensor and a pressure sensor are further arranged in the overcurrent test tube, and the temperature sensor and the pressure sensor are connected with the circuit bin through wires.
Preferably, the wet joint comprises a wet joint female joint and a wet joint male joint tool string which are electrically connected, the wet joint male joint tool string is connected with the ground control device through a four-core cable, and the wet joint female joint is connected with the submersible electric pump and the circuit bin.
Preferably, the wet joint female is connected with the submersible electric pump through an external binding cable.
Preferably, the wet joint female is connected with the circuit bin through a communication cable.
Preferably, the overcurrent test tube is arranged in the outer protective tube.
Preferably, the upper end of the outer protective tube is connected with the upper joint, and the lower end of the outer protective tube is connected with the lower joint
Preferably, the lower end of the submersible electric pump is connected with a screen pipe, and the lower end of the screen pipe is connected with a plug.
Preferably, the water-containing probe is a microwave probe.
The monitoring and testing method based on the microwave water-containing monitoring and testing tubular column of the rodless pump comprises the following steps:
under the action of the submersible electric pump, the underground liquid enters an overflow test tube through a flushing liquid inlet channel, and a flowmeter tests the flow; the water content in the underground liquid is detected by the water-containing probe and then is transmitted to the wet joint through the circuit bin, and is transmitted to the ground control device through the wet joint.
Compared with the prior art, the invention has the following beneficial effects:
the invention discloses a microwave water content monitoring and testing tubular column of a rodless pump, which is characterized in that an underground water content monitoring device is arranged at the upper part of an electric submersible pump, the monitoring device comprises a water content probe and a flowmeter, the device monitors water content of an oil well in real time through the microwave water content probe, a coupling liquid amount weighting algorithm and power carrier transmission, the dynamic real-time monitoring of oil well production is realized, the workload of manual sampling and testing is eliminated, and the real-time performance and accuracy of the water content monitoring of the oil well are ensured. Based on the rodless pump multiparameter sensor, the real-time monitoring of pump outlet flow, temperature and pressure data is realized by adopting a modularized design, and the single-well online automatic metering pry is transferred to the underground, so that the investment cost and the management difficulty are further reduced.
The invention also discloses a microwave water content monitoring test pipe column and a method for the rodless pump, and the method realizes underground real-time measurement of parameters such as pump outlet flow, temperature, pressure, water content and the like. The method is suitable for the rodless pump oil production well based on power cable transmission, the influence of viscosity on measurement accuracy is further reduced by underground microwave water content monitoring, the microwave water content measurement range is enlarged, and the method is suitable for various oil reservoirs based on rodless pump oil production. The result adopts the underground microwave testing method, has wide precision and wide range, eliminates errors by a coupling liquid amount weighting algorithm, adopts a power carrier technology for signal transmission, does not need an additional signal cable to be put in, and is at an international leading level.
Drawings
FIG. 1 is a schematic diagram of a test string of a downhole water-containing monitoring device, wherein 1-1 of the ground control device, 1-2 of the ground control device is a four-core cable, 1-3 of the casing, 1-4 of the oil pipe, 1-5 of the wet joint male tool string, 1-6 of the wet joint female, 1-7 of the communication cable, 1-8 of the externally-bound cable, 1-9 of the water-containing monitoring device, 1-10 of the well flushing channel, 1-11 of the electric submersible pump, 1-12 of the screen pipe and 1-13 of the plug.
FIG. 2 is a schematic diagram of a downhole water-containing monitoring device, wherein 2-1 is an upper joint, 2-2 is an outer protection tube, 2-3 is a circuit bin, 2-4 is an electric control well flushing valve, 2-5 is a well flushing liquid inlet channel, 2-6 is a lower joint, 2-7 is a water-containing probe, 2-8 is an overcurrent test tube, and 2-9 is a flowmeter.
Detailed Description
The invention is described in further detail below with reference to the attached drawing figures:
in the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixed or removable, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, one of the embodiments of the present invention discloses a cable-casting type downhole water-containing monitoring device, which is arranged in a casing 1-3, and the water-containing pipe column structure comprises an oil pipe 1-4 and a coupling thereof, a wet joint female head 1-6, an oil pipe 1-4 and a coupling thereof, a downhole water-containing monitoring device 1-9, an electric submersible pump 1-11, a screen pipe 1-12 and a plug 1-13, which are sequentially connected from top to bottom. Specifically, the downhole water-containing monitoring devices 1-9 are multifunctional liquid production testers.
Specifically, a ground control device 1-1 is arranged on the ground, the ground control device 1-1 is connected with a wet joint male tool string 1-5 through a four-core cable 1-2, the upper end of the wet joint male tool string 1-5 is connected with the four-core cable 1-2, the four-core cable 1-2 is a power cable, and the lower end of the wet joint male tool string 1-5 is inserted into a wet joint female head 1-6; the ground control device 1-1 supplies power to the underground water-containing monitoring device and the signal transmission between the ground control device 1-1 and the underground water-containing monitoring device 1-1 is realized through the connection of the wet joint male tool string 1-5 and the wet joint female tool string 1-6.
Specifically, the wet joint female head 1-6 is connected with the electric submersible pump 1-11 by adopting an external binding cable 1-8, and the external binding cable 1-8 is a small flat cable, so that signal and electricity transmission can be performed; the wet joint female head 1-6 is connected with the underground water content monitoring device 1-9 through a communication cable 1-7, and the communication cable 1-7 is a steel pipe cable. The upper end of the wet joint female head 1-6 is connected to a wellhead through an oil pipe 1-4, a wet joint male head tool string 1-5 is put into the wet joint female head 1-6, and the wet joint male head tool string 1-5 is in butt joint with the wet joint female head 1-6 to realize electric connection and signal transmission.
The underground water-containing monitoring device 1-9 is mechanically connected with the oil-submersible electric pump 1-11 through the oil pipe 1-4, and the underground water-containing monitoring device 1-9 is lifted by the oil-submersible electric pump 1-11 to make the underground water-containing monitoring device 1-9 measure parameters such as flow, temperature, pressure, water content and the like; the downhole water content monitoring devices 1-9 are powered by an underground power supply. More specifically, from top to bottom, the wet joint wood 1-6, the water-containing detection tank 1-9, and the submersible electric pump 1-11 in this application are installed in the oil pipe 1-4 in this order as functional units.
The lower end of the electric submersible pump 1-11 is connected with a screen pipe 1-12, and the lower end of the screen pipe 1-12 is connected with a plug 1-13.
Referring to fig. 2, one of the embodiments of the present invention discloses a downhole water content monitoring device, wherein the downhole water content monitoring device 1-9 mainly comprises an upper joint 2-1, a lower joint 2-6, an outer protection pipe 2-2, a circuit cabin 2-3, an electric control well flushing valve 2-4, a water content probe 2-7, an overcurrent test pipe 2-8 and a flowmeter 2-9. The main structure is a tubular outer protective tube 2-2, the upper end of the outer protective tube 2-2 is connected with an upper joint 2-1, and the lower end of the outer protective tube 2-2 is connected with a lower joint 2-6; wherein the upper end of the upper joint 2-1 is mechanically connected with the wet joint female joint 1-6 through an oil pipe 1-4, and the lower joint 2-6 is mechanically connected with the electric submersible pump 1-11 through the oil pipe 1-4. The outer protection tube 2-2 is internally provided with a coaxial overcurrent test tube 2-8, the outer side wall of the overcurrent test tube 2-8 is connected with the inner side wall of the outer protection tube 2-2, the overcurrent test tube 2-8 is internally provided with a circuit cabin 2-3, an electric control well flushing valve 2-4, a water-containing probe 2-7, a temperature sensor and a pressure sensor, the circuit cabin 2-3 is connected with the wet joint female head 1-6 through a communication cable 1-7, the circuit cabin 2-3 is simultaneously connected with the electric control well flushing valve 2-4, the water-containing probe 2-7, the temperature sensor and the pressure sensor in the underground water-containing monitoring device 1-9 through wires, the underground monitoring box 1-9 receives instructions of the ground control device 1-1 through the wet joint male head string 1-5 and the wet joint female head, and then the on-off of the electric control well flushing valve 2-4 is controlled through signals, and meanwhile, data of the electric control well flushing valve 2-4, the water-containing probe 2-7 and the pressure sensor can be acquired and transmitted to the ground control device. The lower joint 2-6 is provided with a well flushing liquid inlet channel 2-5 and a flowmeter 2-9, and the electric control well flushing valve 2-4 is arranged above the well flushing liquid inlet channel 2-5 and is connected with the well flushing liquid inlet channel 2-5, so that the on-off of the well flushing liquid inlet channel 2-5 can be controlled; the flowmeter 2-9 is arranged at the position of the flushing liquid inlet channel 2-5, can test liquid inlet flow, is connected with the circuit bin 2-3, and the circuit bin 2-3 can collect flow of the flowmeter 2-9.
The working process of the water content detection device is that the submersible electric pump 1-11 pumps underground liquid into the oil pipe 1-4, then the underground liquid passes through the flushing liquid inlet channel 2-5 and the flow meter 2-9 overcurrent test pipe 2-8, and the underground liquid enters the upper oil pipe 1-4 through the water content probe 2-7, so that flow and water content measurement is realized. The circuit bin 2-3 realizes the functions of temperature, internal and external pressure, flow and decoding, and the ground control device 1-1 and the circuit bin 2-3 are mutually communicated through the connection of the wet joint male tool string 1-5 and the wet joint female tool string 1-6, and the water-containing probe 2-7 is a microwave water-containing probe.
The device adopts an underground microwave test method, has a high precision and a wide range, adopts a coupling liquid amount weighting algorithm to eliminate errors, adopts a power carrier technology, does not need an additional signal cable, and realizes real-time monitoring of parameters such as underground flow, temperature, pressure, water content and the like.
The embodiment of the invention also discloses an installation and working method of the underground water-containing monitoring device.
During the construction of a pipe column, a conventional screen pipe 1-12 and a plug 1-13 are installed at the lower end of an electric submersible pump, a unit cable of the electric submersible pump 1-11 is led out from the lower end of a female joint 1-5 of a wet joint, and is connected into a unit of the electric submersible pump 1-11 through an externally-bound cable 1-8. Likewise, the communication cable of the downhole water content monitoring device 1-9 is led out from the lower end of the wet joint female head 1-5, and is connected into the downhole water content monitoring device 1-9 through the communication cable 1-7. The upper end of the wet joint female head 1-6 is connected to a wellhead through an oil pipe 1-4, and after the wellhead christmas tree is installed, the wet joint male head tool string 1-5 is put into the oil pipe until a preset depth is butted with the wet joint female head 1-6, so that electric connection is realized. The wet joint male is connected to the surface control device 1-1 by a quad cable 1-2, wherein 1 cable is used to power and communicate with the downhole water monitoring device 1-9 and the other 3 cables are used to power the submersible electric pump 1-11.
During oil extraction, the submersible electric pump works to lift stratum fluid from a shaft to the ground, and the underground water content monitoring device and the multi-parameter sensor are additionally arranged at the upper end of the submersible electric pump, so that data such as flow, water content, temperature and pressure can be monitored in real time, and single-well fluid production information and the working state of the submersible electric pump can be obtained according to the data.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The microwave water content monitoring and testing tubular column of the rodless pump is characterized by comprising a ground control device (1-1), a wet joint, a water content monitoring device (1-9) and an electric submersible pump (1-11);
the wet joint, the water-containing monitoring device (1-9) and the submersible electric pump (1-11) are arranged in the oil pipe (1-4) from top to bottom in sequence in a segmented manner; the wet joint is connected with the ground control device (1-1) through a cable, and the wet joint is connected with the submersible electric pump (1-11) through a cable;
an overcurrent test tube (2-8) is arranged in the water-containing monitoring device (1-9), and the lower end of the overcurrent test tube (2-8) is connected with a lower joint (2-6);
the overcurrent test tube (2-8) is internally provided with a water-containing probe (2-7), an electric control well flushing valve (2-4) and a circuit bin (2-3); a well flushing liquid inlet channel (2-5) is formed in the lower joint (2-6) and is provided with a flowmeter (2-9), and the well flushing liquid inlet channel (2-5) is communicated with an electric submersible pump (1-11); the electric control well flushing valve (2-4) controls the on-off of the well flushing liquid inlet channel (2-5); the circuit bin (2-3) is connected with the wet joint through a cable, and the water-containing probe (2-7), the electric control well flushing valve (2-4) and the flowmeter (2-9) are all connected with the circuit bin (2-3) through wires.
2. The microwave water-containing monitoring test pipe column of the rodless pump according to claim 1, wherein a temperature sensor and a pressure sensor are further arranged in the overcurrent test pipe (2-8), and the temperature sensor and the pressure sensor are connected with the circuit bin (2-3) through wires.
3. A microwave water-containing monitoring test string for a rodless pump according to claim 2, characterized in that the wet joint comprises a wet joint female head (1-6) and a wet joint male head tool string (1-5) which are electrically connected, the wet joint male head tool string (1-5) and the ground control device (1-1) are connected through a quad cable (1-2), and the wet joint female head (1-6) is connected with an electric submersible pump (1-11) and a circuit bin (2-3).
4. A microwave water-containing monitoring test string for a rodless pump according to claim 3, characterized in that the wet-joint female (1-6) is connected to the submersible electric pump (1-11) by means of an external binding cable (1-8).
5. A microwave water-containing monitoring test string for a rodless pump according to claim 3, characterized in that the wet-joint female (1-6) is connected to the circuit compartment (2-3) by means of a communication cable (1-7).
6. A rodless pump microwave water-containing monitoring test string according to claim 1, with the over-flow test tube (2-8) being disposed in the outer sheath tube (2-2).
7. A microwave water-containing monitoring test string for a rodless pump according to claim 6, characterized in that the upper end of the outer protection tube (2-8) is connected to the upper joint (2-1), and the lower end of the outer protection tube (2-8) is connected to the lower joint (2-6).
8. A microwave water-containing monitoring and testing tubular column for a rodless pump according to claim 3, characterized in that the lower end of the submersible electric pump (1-11) is connected with a screen pipe (1-12), and the lower end of the screen pipe (1-12) is connected with a plug (1-13).
9. A rodless pump microwave water-containing monitoring test string according to claim 1, with the water-containing probe (2-7) being a microwave probe.
10. A method of monitoring a microwave water-containing monitoring test string based on a rodless pump according to any one of claims 1 to 9, comprising the steps of:
under the action of an electric submersible pump (1-11), underground liquid enters an overflow test tube (2-8) through a flushing liquid inlet channel (2-5), and a flowmeter (2-9) tests flow; the water content in the underground liquid is detected by the water-containing probe (2-7), and then is transmitted to the wet joint through the circuit bin (2-3) and transmitted to the ground control device (1-1) through the wet joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211202435.5A CN117823120A (en) | 2022-09-29 | 2022-09-29 | Microwave water content monitoring and testing tubular column and method for rodless pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211202435.5A CN117823120A (en) | 2022-09-29 | 2022-09-29 | Microwave water content monitoring and testing tubular column and method for rodless pump |
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| Publication Number | Publication Date |
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| CN117823120A true CN117823120A (en) | 2024-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211202435.5A Pending CN117823120A (en) | 2022-09-29 | 2022-09-29 | Microwave water content monitoring and testing tubular column and method for rodless pump |
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| Country | Link |
|---|---|
| CN (1) | CN117823120A (en) |
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2022
- 2022-09-29 CN CN202211202435.5A patent/CN117823120A/en active Pending
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