CN107013189B - Ultrasonic atomization drainage and liquid-reducing device for coal-bed gas well - Google Patents
Ultrasonic atomization drainage and liquid-reducing device for coal-bed gas well Download PDFInfo
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- CN107013189B CN107013189B CN201710379100.3A CN201710379100A CN107013189B CN 107013189 B CN107013189 B CN 107013189B CN 201710379100 A CN201710379100 A CN 201710379100A CN 107013189 B CN107013189 B CN 107013189B
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- 238000000889 atomisation Methods 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 106
- 239000007788 liquid Substances 0.000 claims abstract description 51
- 230000009467 reduction Effects 0.000 claims abstract description 6
- 239000003245 coal Substances 0.000 claims description 21
- 239000013078 crystal Substances 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 12
- 239000011159 matrix material Substances 0.000 claims description 11
- 210000002445 nipple Anatomy 0.000 claims description 9
- 238000001556 precipitation Methods 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000002817 coal dust Substances 0.000 description 12
- 238000005086 pumping Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008398 formation water Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/006—Production of coal-bed methane
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- Chemical Kinetics & Catalysis (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
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- Environmental & Geological Engineering (AREA)
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- Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention provides an ultrasonic atomization drainage and liquid reduction device for a coal-bed gas well, which is arranged in a casing of the coal-bed gas well, and comprises: the oil feeding pipe (2), the oil discharging pipe (11) and the connecting joint (9) are positioned in the sleeve; the cable (3) is arranged in the small oil pipe (4) and extends downwards from a wellhead; a wet joint (5) arranged in the small oil pipe and connected with the cable (3); a transducer (7) located within the connection joint (9) and connected to the wet joint (5); a water pump (12) located below the transducer (7) and supplying water to the transducer; the water pump is connected with the wet joint (5); and the air pump is positioned on the ground and connected with the small oil pipe. The invention has the advantages of low overall cost of equipment, low power consumption, simple and convenient installation and maintenance and good operation benefit.
Description
Technical Field
The invention relates to the field of coal bed gas exploitation, in particular to an ultrasonic atomization drainage and liquid reduction device for a coal bed gas well.
Background
In the process of exploiting coal bed gas from coal bed gas wells, water in the wells needs to be discharged, so that the coal bed gas can be analyzed and output. In the initial mining stage of the coal-bed gas well, because the stratum water yield is large, generally, a pumping unit is required to be installed on the ground, an oil pipe, a pumping rod and a deep well pump are used for draining water in the well, and in the middle and later mining stages, the stratum water yield is greatly reduced, the pumping unit can only be separated, and the liquid level is required to be measured frequently to ensure that the liquid level is at the designed depth, so that equipment and electric energy waste is caused.
In summary, the following problems exist in the prior art: in the middle and later periods of coal bed gas well exploitation, the formation water yield is greatly reduced, and the drainage of the traditional oil pumping unit is inconvenient.
Disclosure of Invention
The invention provides an ultrasonic atomization drainage and liquid-reducing device for a coal-bed gas well, which aims to solve the problems that the formation water output is greatly reduced and the drainage of a traditional oil pumping unit is inconvenient in the middle and later periods of coal-bed gas well exploitation.
Therefore, the invention provides an ultrasonic atomization drainage and liquid reduction device for a coal-bed gas well, which is arranged in a casing of the coal-bed gas well, and comprises:
the oil supply device comprises an upper oil pipe 2 and a lower oil pipe 11 which are positioned in a sleeve, and a connecting joint 9 connected between the upper oil pipe and the lower oil pipe; the upper end of the oil feeding pipe is positioned at the wellhead of the coal-bed gas well;
the small oil pipe 4 is sleeved in the upper oil pipe 2, and the inner diameter of the small oil pipe is smaller than that of the upper oil pipe; the small oil pipe 4 is positioned above the connecting joint 9;
a cable 3 arranged in the small oil pipe 4 and extending downwards from a wellhead;
a wet joint 5 arranged in the small oil pipe and connected with the cable 3;
a transducer 7 located within the connection joint 9 and connected to the wet joint 5;
a water pump 12 located below the transducer 7 and supplying water to the transducer; the water pump is connected with the wet joint 5;
the wellhead sealing device is arranged on the small oil pipe and the upper oil pipe, and the cable penetrates out of the wellhead sealing device;
and the air pump is positioned on the ground and connected with the small oil pipe.
Further, the transducer 7 comprises a plurality of piezoelectric crystals, the plurality of piezoelectric crystals are arranged to form an annular matrix, a hollow channel is arranged in the middle of the annular matrix, and the ultrasonic atomization drainage liquid-lowering device for the coal-bed gas well further comprises: and an upper water pipe 10 connected with the water pump, wherein the upper water pipe 10 passes through the channel from the lower oil pipe 11 upwards, and the top end of the upper water pipe 10 is positioned above the transducer 7 and below the wet joint 5.
Furthermore, a coal dust discharge hole 6 is formed in the side wall of the connecting joint 9, and the coal dust discharge hole 6 is located above the energy converter 7.
Further, the outer diameters of the upper oil pipe and the lower oil pipe are the same, the connecting joint 9 is a reducing short section, the maximum outer diameter of the connecting joint 9 is larger than the outer diameter of the upper oil pipe 2, and the minimum outer diameter of the connecting joint 9 is equal to the outer diameter of the upper oil pipe 2.
Further, the bottom end of the lower oil pipe 11 is also connected with a water pump protection nipple 13, the maximum inner diameter of the water pump protection nipple 13 is larger than the inner diameter of the lower oil pipe 11, and the water pump 12 is located in the water pump protection nipple 13.
Further, coal bed gas well ultrasonic atomization drainage precipitation device still includes: the liquid level switch is arranged on the side wall of the water feeding pipe 10 and located above the water pump, and the liquid level switch is connected with the water pump, the energy converter and the air pump.
Further, the outer diameter of the oil feeding pipe 2 is 73mm, the inner diameter of the oil feeding pipe 2 is 62mm, the outer diameter of the small oil pipe 4 is 50mm, and the inner diameter of the small oil pipe 4 is 40mm.
Further, the transducer 7 comprises 8 piezoelectric crystals, each of the piezoelectric crystals is in a circular shape with a diameter of 22mm, and the center of each of the piezoelectric crystals is arranged on a circumference with a diameter of 60 mm.
According to the invention, water in the shaft is pumped to the transducer 7 through the water pump, atomized water gas is pumped out through the small oil pipe 4 by atomizing the water in the shaft through the transducer, and the atomized water gas is effectively pumped out to the ground through the air pump, so that the purposes of liquid lowering and gas production are achieved, the liquid level height in the shaft can be accurately controlled, and the coal bed gas is analyzed and produced. The invention replaces the oil pumping unit, and has the advantages of low overall cost of equipment, low power consumption, simple and convenient installation and maintenance and good operation benefit.
Furthermore, the transducers 7 are arranged into an annular matrix, the water feeding pipes 10 connected with the water pump are arranged in the middle of the matrix, and the work of the transducers 7 is more uniform and stable, so that the problem of the frequency of a high-power transducer can be solved, the requirement on the frequency of the transducer is lowered, the diameters of fog drops are reduced, and the liquid dropping efficiency is improved.
Furthermore, the ultrasonic atomization drainage and liquid descending device provided by the invention is provided with the liquid level switch, can automatically detect the liquid level depth, automatically starts and stops atomization drainage according to the liquid level depth, and has the advantages of accurate liquid level control, low cost and low power consumption.
Drawings
FIG. 1 is a schematic overall structure diagram of an ultrasonic atomization drainage and liquid-lowering device for a coal-bed gas well according to the invention;
fig. 2 is a schematic diagram of the structure of the annular matrix of the transducer of the present invention.
The reference numbers illustrate: 1. a sleeve; 2, feeding an oil pipe; 3, a cable; 4, a small oil pipe; 5. a wet joint; 6, a pulverized coal discharge hole; 7. a transducer; an electronic compartment; 9 connecting a joint; 10. a water feeding pipe; discharging an oil pipe; 12, a water pump; 13, protecting a short joint of the water pump; 70. channel 71 piezoelectric crystal.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, the present invention will now be described with reference to the accompanying drawings.
As shown in fig. 1, an ultrasonic atomization drainage and fluid reduction device for a coal-bed gas well according to an embodiment of the present invention is disposed in a casing 1 of the coal-bed gas well, and includes:
the oil pipe comprises an upper oil pipe 2 and a lower oil pipe 11 which are positioned in a sleeve 1, and a connecting joint 9 connected between the upper oil pipe and the lower oil pipe; the upper end of the upper oil pipe 1 is positioned at the wellhead of the coal-bed gas well;
the small oil pipe 4 is sleeved in the upper oil pipe 2, and the inner diameter of the small oil pipe 4 is smaller than that of the upper oil pipe 2; the small oil pipe 4 is positioned above the connecting joint 9; the small oil pipe 4 is used for putting in components such as a cable, a wet joint and the like and discharging atomized water vapor;
a cable 3 arranged in the small oil pipe 4 and extending downwards from a wellhead; the cable 3 is connected with a power supply on the ground to provide power for components such as an energy converter, a water pump and the like;
a wet joint 5 arranged in the small oil pipe and connected with the cable 3; the cable 3 is connected to a cable head, and the wet joint 5 connects the cable head and the transducer 7, so that the transducer 7 is connected to the cable downhole; furthermore, in order to adapt to underground ultrasonic atomization drainage and liquid drop, the pressure resistance of the wet joint is more than or equal to 15 Mpa, the insulation value is more than or equal to 50M omega, the working current is more than or equal to 10A, and the working voltage is more than or equal to 110V; further, the wet joint outer diameter: phi 32, the design of male and female wet joints is finished without fishing;
the transducer 7 is positioned in the connecting joint 9 and connected with the wet joint 5, and the transducer 7 plays a role in ultrasonic atomization of water;
a water pump 12 located below the transducer 7 and supplying water to the transducer 7; the water pump 12 is connected with the wet joint 5 to realize electric connection; as a better choice, the pump lift of the water pump is more than or equal to 15m, and the flow is 8L/h; the power of the water pump 12 is 300w, which is much lower than that of the pumping unit, so that energy and electricity are saved;
the wellhead sealing device is arranged on the small oil pipe and the upper oil pipe and is used for sealing the cable, and the cable penetrates out of the wellhead sealing device; furthermore, the pressure resistance of the wellhead sealing device is more than or equal to 10Mpa so as to ensure blowout prevention and pressure resistance;
and the air pump is positioned on the ground and connected with the small oil pipe, and the air pump can penetrate through the wellhead sealing device through a pipeline to be connected with the small oil pipe.
According to the invention, water in the shaft is pumped to the energy converter 7 through the water pump 12 to form a liquid level or a water level in the connecting joint 9, the energy converter 7 is positioned below the liquid level or the water level, the energy converter 7 atomizes the water in the shaft, atomized water and air are pumped out through the small oil pipe 4 and are effectively pumped and discharged to the ground through the air pump, and the purposes of liquid lowering and gas production are achieved. The invention replaces the oil pumping unit, and has the advantages of low overall cost of equipment, low power consumption, simple and convenient installation and maintenance and good operation benefit.
Further, as shown in fig. 2, the transducer 7 comprises a plurality of piezoelectric crystals 71, the plurality of piezoelectric crystals are arranged to form an annular matrix, the annular matrix has a hollow passage 70 in the middle, and the ultrasonic atomized drainage liquid descending device for the coal-bed gas well further comprises: and an upper water pipe 10 connected with the water pump, wherein the upper water pipe 10 passes through the channel from the lower oil pipe 11 upwards, and the top end of the upper water pipe 10 is positioned above the transducer 7 and below the wet joint 5. And the upper water pipe 10 is used for supplying water pumped by the water pump to the energy converter 7, and the energy converter 7 is positioned at the liquid level or below the water level.
According to the invention, the transducers 7 are arranged into an annular matrix, the water feeding pipe 10 connected with the water pump is arranged in the middle of the matrix, the utilization efficiency of the space in a shaft can be improved, the directions of the water feeding pipe 10 are limited or stressed uniformly, the positioning is accurate, the water feeding pipe does not shake, and the work of the transducers 7 is more uniform and stable, so that the problem of the frequency of a high-power transducer can be solved, the requirement on the frequency of the transducer is reduced, the diameter of fog drops is reduced, and the liquid reducing efficiency is improved.
Furthermore, a coal dust discharge hole 6 is formed in the side wall of the connecting joint 9, and the coal dust discharge hole 6 is located above the energy converter 7. The pulverized coal discharge hole 6 plays a role in controlling the height of the liquid level (water surface) on the upper surface of the transducer 7 and plays a role in washing pulverized coal. The transducer is sensitive to the height of water on the upper surface of the transducer, the atomization efficiency of the transducer is highest in a certain height range, and the atomization efficiency of the transducer is seriously influenced if the height is too high or too low. When the liquid level on the upper surface of the energy converter 7 is too high, the coal powder is discharged through the coal powder discharge hole 6; when the coal dust is deposited on the energy converter, the coal dust can be easily discharged through the coal dust discharge hole 6 by pumping of the water pump and flowing of the liquid level of the upper surface of the energy converter 7, the water pump not only supplies water to the energy converter array, but also flushes the coal dust deposited on the surface of the energy converter array completely, and therefore the atomization efficiency can be prevented from being influenced by the fact that the coal dust is deposited on the energy converter.
Further, the outer diameters of the upper oil pipe and the lower oil pipe are the same, the connecting joint 9 is a reducing short section, the maximum outer diameter of the connecting joint 9 is larger than the outer diameter of the upper oil pipe 2, and the minimum outer diameter of the connecting joint 9 is equal to the outer diameter of the upper oil pipe 2, so that a larger space is provided for accommodating the transducer.
Further, the bottom of oil pipe 11 still is connected with water pump protection nipple joint 13 down to hold, support and protect the water pump, the biggest internal diameter of water pump protection nipple joint 13 is greater than the internal diameter of oil pipe 11 down, water pump 12 is located in water pump protection nipple joint 13.
Further, coal bed gas well ultrasonic atomization drainage precipitation device still includes: the liquid level switch is arranged on the side wall of the water feeding pipe 10 and located above the water pump, and the liquid level switch is connected with the water pump, the energy converter and the air suction pump. The transducer is sensitive to the height of water on the upper surface of the transducer, the atomization efficiency of the transducer is highest in a certain height range, and the atomization efficiency of the transducer is seriously influenced if the height is too high or too low. The depth error of the transducer when the transducer is lowered to the underground can exceed the value, so the transducer in the invention is above the liquid level at the bottom of the well, the liquid level switch is near the designed liquid level, and the water pump is below the liquid level at the bottom of the well. When the underground surface of the liquid well reaches the position to be treated, the liquid level switch is connected with a power supply, the water pump, the energy converter and the ground air pump work simultaneously, and when the liquid level drops below the position to be treated, the liquid level switch is closed, and the system stops working.
Further, the outer diameter of the oil feeding pipe 2 is 73mm, the inner diameter of the oil feeding pipe 2 is 62mm, the outer diameter of the small oil pipe 4 is 50mm, and the inner diameter of the small oil pipe 4 is 40mm, so that the ultrasonic atomization water drainage device is suitable for underground ultrasonic atomization water drainage.
Further, as shown in fig. 2, the transducer 7 includes 8 piezoelectric crystals 71, each piezoelectric crystal 71 is a circle with a diameter of 22mm, and the center of each piezoelectric crystal 71 is arranged on a circumference with a diameter of 60mm, so as to provide a good limiting effect on the water supply pipe 10. The transmitting power of the transducer array can reach more than 200W, the atomization amount is more than or equal to 4L/h, and the ultrasonic atomization water discharge device is suitable for ultrasonic atomization water discharge of coal-bed gas wells.
In order to provide the transducer 7 with stable operation performance, an electronic compartment 8, which is a device for generating and supplying ultrasonic energy to the ultrasonic transducer, is further connected below the transducer 7. The first function of the electronics bay is to provide an output power signal. When the power supply (voltage) of the generator changes. The output power of the generator will also change, which is reflected on the transducer as a sudden and sudden mechanical vibration, resulting in unstable effect. Therefore, the output power needs to be stabilized, and the power amplifier is adjusted correspondingly through the power feedback signal, so that the power amplification is stabilized. The electronic bay second function is to provide a frequency tracking signal. When the transducer works at a resonant frequency point, the efficiency is highest, the work is most stable, the resonant frequency point of the transducer can change due to assembly reasons and work aging, the changed frequency is only shifted and does not change greatly, and the frequency tracking signal can control the signal generator to enable the frequency of the signal generator to track the resonant frequency point of the transducer within a certain range. The generator is allowed to operate in an optimal state.
The depth of the shaft of the invention can reach more than 1000 meters, and the underground environment is as follows: the highest pressure is 5MPa, the highest temperature is 40 ℃, the liquid level can be controlled by the liquid level switch without measuring the liquid level, and the power of the water pump of the invention is only 300 watts and is much lower than that of an oil pumping unit.
The working process of the invention is as follows:
connecting a water pump protection short section 13 with an upper oil pipe 2, connecting a water pump 12, an upper water pipe 10 and a water pump power line after 3 upper oil pipes 2 are put in, enabling the water pump to be seated in the electric pump protection short section 13, connecting the upper ends of the upper water pipe 10 and the water pump power line with a connecting joint 9 at a well mouth (an electronic cabin 8, an energy converter 7 and a wet joint 5 are assembled in the connecting joint in advance), continuing to put the upper oil pipe 2 to a preset depth, putting a small oil pipe 4 to a preset depth, installing a cable sealing device at the well mouth, butting the lower cable 3 with the wet joint, checking on-off on the ground, closing a power supply after the system can normally work, and sealing the cable sealing device.
And (3) starting a power supply, supplying water to the transducer by the water pump, atomizing water by the transducer, starting the ground air exhaust fan to work, exhausting atomized water gas out through the small oil pipe 4, and producing the coal bed gas to a ground conveying pipeline through the annular space between the upper oil pipe 2 and the sleeve 1. In order to prevent the liquid level of the upper surface of the energy converter from being too high and coal dust from being deposited on the energy converter to influence the atomization efficiency, a drain hole (coal dust discharge hole) is formed in the upper part of the position of the energy converter, which is installed on the connecting joint, and the drain hole plays a role in controlling the liquid level of the upper surface of the energy converter and washing the coal dust. The transducer detects the liquid level in the well through the liquid level switch while working, and once the liquid level falls to the design depth, the device is automatically shut down. When the liquid level rises to the designed depth, the device is automatically started.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. In order that the components of the present invention may be combined without conflict, it is intended that all equivalent changes and modifications made by those skilled in the art without departing from the spirit and principles of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. The utility model provides a coal seam gas well ultrasonic atomization drainage precipitation device which characterized in that, coal seam gas well ultrasonic atomization drainage precipitation device sets up in the sleeve pipe of coal seam gas well, coal seam gas well ultrasonic atomization drainage precipitation device includes:
the oil supply device comprises an upper oil pipe (2) and a lower oil pipe (11) which are positioned in a sleeve and a connecting joint (9) connected between the upper oil pipe and the lower oil pipe; the upper end of the oil feeding pipe is positioned at the wellhead of the coal-bed gas well;
the small oil pipe (4) is sleeved in the upper oil pipe (2), and the inner diameter of the small oil pipe is smaller than that of the upper oil pipe; the small oil pipe (4) is positioned above the connecting joint (9);
the cable (3) is arranged in the small oil pipe (4) and extends downwards from a wellhead;
a wet joint (5) arranged in the small oil pipe and connected with the cable (3);
a transducer (7) located within the connection joint (9) and connected to the wet joint (5);
a water pump (12) located below the transducer (7) and supplying water to the transducer; the water pump is connected with the wet joint (5);
the wellhead sealing device is arranged on the small oil pipe and the upper oil pipe, and the cable penetrates out of the wellhead sealing device;
the air pump is positioned on the ground and connected with the small oil pipe;
a coal powder discharge hole (6) is formed in the side wall of the connecting joint (9), and the coal powder discharge hole (6) is located above the energy converter (7);
the outer diameters of the upper oil pipe and the lower oil pipe are the same, the connecting joint (9) is a reducing short section, the maximum outer diameter of the connecting joint (9) is larger than the outer diameter of the upper oil pipe (2), and the minimum outer diameter of the connecting joint (9) is equal to the outer diameter of the upper oil pipe (2);
the bottom of oil pipe (11) still is connected with water pump protection nipple joint (13) down, and the biggest internal diameter of water pump protection nipple joint (13) is greater than the internal diameter of oil pipe (11) down, water pump (12) are located in water pump protection nipple joint (13).
2. The ultrasonic atomized drainage and precipitation device for the coal-bed gas well as claimed in claim 1, wherein the transducer (7) comprises a plurality of piezoelectric crystals, the plurality of piezoelectric crystals are arranged to form an annular matrix, a hollow channel is arranged in the middle of the annular matrix, and the ultrasonic atomized drainage and precipitation device for the coal-bed gas well further comprises: and the upper water pipe (10) is connected with the water pump, the upper water pipe (10) upwards penetrates out of the channel from the lower oil pipe (11), and the top end of the upper water pipe (10) is positioned above the energy converter (7) and below the wet joint (5).
3. The ultrasonic atomized water discharge and liquid reduction device for the coal-bed gas well as claimed in claim 2, wherein the ultrasonic atomized water discharge and liquid reduction device for the coal-bed gas well further comprises: the liquid level switch is arranged on the side wall of the water feeding pipe (10), the liquid level switch is located above the water pump, and the liquid level switch is connected with the water pump, the energy converter and the air pump.
4. The ultrasonic atomization drainage and liquid descending device for the coal-bed gas well is characterized in that the outer diameter of the upper oil pipe (2) is 73mm, the inner diameter of the upper oil pipe (2) is 62mm, the outer diameter of the small oil pipe (4) is 50mm, and the inner diameter of the small oil pipe (4) is 40mm.
5. An ultrasonic atomizing drainage liquid descending device for a coal-bed gas well as defined in claim 2, characterized in that the transducer (7) comprises 8 piezoelectric crystals, each piezoelectric crystal is in a circle with a diameter of 22mm, and the center of each piezoelectric crystal is arranged on a circle with a diameter of 60 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710379100.3A CN107013189B (en) | 2017-05-25 | 2017-05-25 | Ultrasonic atomization drainage and liquid-reducing device for coal-bed gas well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710379100.3A CN107013189B (en) | 2017-05-25 | 2017-05-25 | Ultrasonic atomization drainage and liquid-reducing device for coal-bed gas well |
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| Publication Number | Publication Date |
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| CN107013189A CN107013189A (en) | 2017-08-04 |
| CN107013189B true CN107013189B (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710379100.3A Active CN107013189B (en) | 2017-05-25 | 2017-05-25 | Ultrasonic atomization drainage and liquid-reducing device for coal-bed gas well |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5410518A (en) * | 1993-11-12 | 1995-04-25 | Simmonds Precision Product, Inc. | Ultrasonic transducer assembly for measuring liquid level |
| US5462116A (en) * | 1994-10-26 | 1995-10-31 | Carroll; Walter D. | Method of producing methane gas from a coal seam |
| CN1305047A (en) * | 2000-12-26 | 2001-07-25 | 西南石油学院 | Ultrasonic water draining method for recovering gas |
| CN102373908A (en) * | 2011-10-08 | 2012-03-14 | 龚大建 | Underground ultrasonic yield-increasing pumping device for coalseam gas |
| CN206737893U (en) * | 2017-05-25 | 2017-12-12 | 泰尔达能源科技（北京）有限公司 | Coal bed gas well ultrasonic atomizatio draining descending liquid device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9664016B2 (en) * | 2013-03-15 | 2017-05-30 | Chevron U.S.A. Inc. | Acoustic artificial lift system for gas production well deliquification |
-
2017
- 2017-05-25 CN CN201710379100.3A patent/CN107013189B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5410518A (en) * | 1993-11-12 | 1995-04-25 | Simmonds Precision Product, Inc. | Ultrasonic transducer assembly for measuring liquid level |
| US5462116A (en) * | 1994-10-26 | 1995-10-31 | Carroll; Walter D. | Method of producing methane gas from a coal seam |
| CN1305047A (en) * | 2000-12-26 | 2001-07-25 | 西南石油学院 | Ultrasonic water draining method for recovering gas |
| CN102373908A (en) * | 2011-10-08 | 2012-03-14 | 龚大建 | Underground ultrasonic yield-increasing pumping device for coalseam gas |
| CN206737893U (en) * | 2017-05-25 | 2017-12-12 | 泰尔达能源科技（北京）有限公司 | Coal bed gas well ultrasonic atomizatio draining descending liquid device |
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| Publication number | Publication date |
|---|---|
| CN107013189A (en) | 2017-08-04 |
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