CN212776826U - Pressure regulating and purifying device for natural gas lift of shale gas platform pipe network - Google Patents
Pressure regulating and purifying device for natural gas lift of shale gas platform pipe network Download PDFInfo
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- CN212776826U CN212776826U CN202021652401.2U CN202021652401U CN212776826U CN 212776826 U CN212776826 U CN 212776826U CN 202021652401 U CN202021652401 U CN 202021652401U CN 212776826 U CN212776826 U CN 212776826U
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Abstract
The utility model discloses a pressure regulating and purifier are used to shale gas platform pipe network natural gas lift, including consecutive double flange reducing connection assembly, throttle stop valve, double flange connection assembly, filter, double flange vary voltage connection assembly, the less one end of double flange reducing connection assembly diameter with the throttle stop valve links to each other, double flange reducing connection assembly with be equipped with the manometer on the pipeline of double flange connection assembly, the withstand voltage grade of double flange reducing connection assembly, throttle stop valve, double flange connection assembly and filter is greater than the withstand voltage grade of double flange vary voltage connection assembly. The utility model discloses can be according to the operating mode of gas lift operation, through throttle stop valve adjustment admission pressure, purify the feed gas through the filter, more do benefit to the different gas lift operating mode of adaptation, be favorable to the quick recurrence of flooding well, get rid of interior hydrops of well.
Description
Technical Field
The utility model relates to an oil gas bores and adopts equipment technical field, in particular to shale gas platform pipe network pressure regulating and purifier for natural gas lift.
Background
In the production process of a gas well, because the formation pressure is reduced, partial wells can not produce due to serious accumulated liquid at the bottom of the well, and the compression of natural gas by a compressor to lift drainage and gas production is one of the common methods for recovering the well productivity. The natural gas compressor gas lift drainage gas production is a mechanical drainage gas production process which is characterized in that natural gas is injected into an oil sleeve annulus or an oil pipe by means of a natural gas source of a shale gas platform pipe network after the natural gas is pressurized by a compressor, gas and liquid in a shaft are mixed by expansion energy of injected high-pressure gas and stratum produced gas, so that the liquid column density of the shaft is reduced, the shaft bottom back pressure is reduced, the production pressure difference is increased, the gas-liquid flow rate is improved, the liquid carrying capacity of the natural gas is increased, accumulated liquid in the shaft is discharged, the water flooded well is revived, and continuous or intermittent production is realized.
During the use of the compressor, natural gas with proper pressure needs to be provided for the compressor to be used as the raw gas for gas lift. The natural gas compressor has certain requirements on the air inlet pressure, the air inlet pressure is usually between 0.5 and 5Mpa, in the gas lift operation process, the air inlet pressure needs to be adjusted according to the actual working condition, the air inlet pressure influences the final gas injection quantity of the compressor, and the rate of the target measure well in the recovery is influenced.
At the initial stage of production of the shale gas platform well, the pressure of a pipe network is 1-2Mpa, the pressure of the pipe network gradually rises along with the production of natural gas in the well, and the pressure of the pipe network can reach 6-10Mpa (partial compressors cannot be directly applied). The high-pressure natural gas in the pipe network can not be directly used as the raw material gas of the compressor, and the gas source in the pipe network still needs to be subjected to pressure regulation and secondary filtration to be used as the raw material gas although the gas source is subjected to desanding and dewatering treatment.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model aims at providing a shale gas platform pipe network natural gas is pressure regulating and purifier for gas lift makes pipe network high pressure natural gas source as compressed natural gas for gas lift raw materials after pressure regulating, filtering.
The technical scheme of the utility model as follows:
the utility model provides a pressure regulating and purifier are used to natural gas lift of shale gas platform pipe network, includes consecutive double flange reducing connection assembly, throttle stop valve, double flange connection assembly, filter, double flange vary voltage connection assembly, the less one end of double flange reducing connection assembly diameter with the throttle stop valve links to each other, double flange reducing connection assembly with be equipped with the manometer on the pipeline of double flange connection assembly, the withstand voltage grade of double flange reducing connection assembly, throttle stop valve, double flange connection assembly and filter is greater than the withstand voltage grade of double flange vary voltage connection assembly.
Preferably, the pressure gauge is connected to the pipe by a cock.
Preferably, the pressure-resistant grades of the double-flange variable-diameter connecting assembly, the throttling stop valve, the double-flange connecting assembly and the filter are the same and 10MPa, and the pressure-resistant grade of the double-flange variable-pressure connecting assembly is 6 MPa.
Preferably, the outer diameters of the two ends of the double-flange reducing connection assembly are DN150 and DN50 respectively.
Preferably, the double-flange reducing connection assembly changes the outer diameter DN150 into DN50 through twice reducing.
Preferably, the filter includes the body, the inside filter screen that is equipped with of body, the filter screen sets up with the circulation of gas direction is perpendicular, the body bottom is equipped with the filter residue discharge hole, the body top is equipped with can dismantle the top cap.
Preferably, the filter screen is provided with a plurality of layers, and the pore diameter of the filter screen is smaller at one end closer to the double-flange variable-pressure connection assembly.
Preferably, the shell of the throttling stop valve, the double-flange connection assembly, the filter and the double-flange variable-pressure connection assembly is provided with a heat-insulating layer or a heating layer.
Preferably, the heat-insulating layer is made of any one of glass wool, ceramic fiber and silicon carbide fiber, and the heating layer is a heating resistance wire spirally wound on the shell.
The utility model has the advantages that:
by arranging the double-flange variable-diameter connecting assembly, a pipe network air source can be obtained through one end with a larger diameter, and the end with a smaller diameter is matched with the compressor air inlet pipeline, so that the device can be connected with a shale air pipe network and the compressor air inlet pipeline; the pressure of the gas source can be adjusted by arranging the throttling stop valve, so that the pressure of the gas source of the pipe network is reduced to meet the pressure requirement of the raw gas of the compressor; the pressure of the air source at the two ends of the throttle stop valve can be measured by arranging the pressure gauge, so that the pressure is conveniently regulated; quartz sand and fine impurities in a pipe network gas source can be removed by arranging a filter, and natural gas is further purified; to sum up make the utility model discloses can adjust inlet pressure according to the operating mode of gas lift operation, purify the feed gas, more do benefit to the different gas lift operating mode of adaptation, be favorable to the quick recurrence of water flooded well, get rid of interior hydrops of well.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is the utility model discloses pressure regulating and purifier for natural gas lift of shale gas platform pipe network's structural schematic.
Reference numbers in the figures:
1-double-flange variable diameter connection assembly, 2-throttling stop valve, 3-double-flange connection assembly, 4-filter, 5-double-flange variable pressure connection assembly, 6-cock connection pressure gauge, 7-filter residue discharge hole and 8-detachable top cover.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
It should be noted that, in the present application, the embodiments and the technical features of the embodiments may be combined with each other without conflict.
It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In the present application, the terms "first", "second", and the like are used for distinguishing similar objects, and not for describing a particular order or sequence order, unless otherwise specified. It is to be understood that the terms so used; the terms "upper", "lower", "left", "right", and the like are used generally with respect to the orientation shown in the drawings, or with respect to the component itself in a vertical, or gravitational orientation; likewise, "inner", "outer", and the like refer to the inner and outer relative to the contours of the components themselves for ease of understanding and description. The above directional terms are not intended to limit the present invention.
As shown in figure 1, a pressure regulating and purifying device for natural gas lift of shale gas platform pipe network, including consecutive double flange reducing connection assembly 1, throttle stop valve 2, double flange connection assembly 3, filter 4, double flange vary voltage connection assembly 5, the less one end of double flange reducing connection assembly 1 diameter with throttle stop valve 2 links to each other, double flange reducing connection assembly 1 with all be equipped with cock connection manometer 6 on double flange connection assembly 3's the pipeline, double flange reducing connection assembly 1, throttle stop valve 2, double flange connection assembly 3 and filter 4's withstand voltage level is greater than double flange vary voltage connection assembly 5's withstand voltage level.
In a specific embodiment, the pressure-resistant grades of the double-flange variable-diameter connection assembly 1, the throttling stop valve 2, the double-flange connection assembly 3 and the filter 4 are the same and 10MPa, and the pressure-resistant grade of the double-flange variable-pressure connection assembly 5 is 6 MPa.
In a specific embodiment, the outer diameters of the two ends of the double-flange reducing connection assembly 1 are DN150 and DN50 respectively. Optionally, the double-flange reducing connection assembly 1 changes the outer diameter DN150 into DN50 through twice reducing.
In order to facilitate cleaning or replacing the filter screen, optionally, the filter 4 includes a body, a filter screen (not shown in the figure) is arranged inside the body, the filter screen is perpendicular to the gas flow direction, a filter residue discharge hole 7 is arranged at the bottom of the body, and a detachable top cover 8 is arranged at the top of the body. Optionally, the filter screen is provided with multiple layers, and the pore size of the filter screen is smaller at one end closer to the double-flange variable-pressure connection assembly 5.
In order to prevent that gaseous pressure regulating back, gaseous state changes, and the temperature reduces, causes ice stifled, optionally, all be equipped with heat preservation or zone of heating (not shown in the figure) on the casing of throttle stop valve 2, two flange joint assembly 3, filter 4 and two flange vary voltage joint assembly 5, the heat preservation adopts any one of glass cotton, ceramic fibre, carborundum fibre, the zone of heating is the spiral winding heating resistor silk on the casing.
In all the above embodiments, the throttle stop valve is the prior art, and the detailed structure is not described herein.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent embodiments without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.
Claims (9)
1. The utility model provides a pressure regulating and purifier are used to natural gas lift of shale gas platform pipe network, a serial communication port, including consecutive double flange reducing connection assembly, throttle stop valve, double flange connection assembly, filter, double flange vary voltage connection assembly, the less one end of double flange reducing connection assembly diameter with the throttle stop valve links to each other, double flange reducing connection assembly with be equipped with the manometer on the pipeline of double flange connection assembly, double flange reducing connection assembly, throttle stop valve, double flange connection assembly and the withstand voltage grade of filter are greater than the withstand voltage grade of double flange vary voltage connection assembly.
2. The pressure regulating and purifying device for natural gas lift of shale gas platform pipe network of claim 1, wherein the pressure gauge is connected with the pipeline through a cock.
3. The pressure regulating and purifying device for natural gas lift of the shale gas platform pipe network of claim 1, wherein the pressure-resistant grades of the double-flange variable-diameter connection assembly, the throttling stop valve, the double-flange connection assembly and the filter are the same and are all 10MPa, and the pressure-resistant grade of the double-flange variable-pressure connection assembly is 6 MPa.
4. The pressure regulating and purifying device for the natural gas lift of the shale gas platform pipe network of claim 1, wherein the outer diameters of the two ends of the double-flange reducing connection assembly are DN150 and DN50 respectively.
5. The pressure regulating and purifying device for the natural gas lift of the shale gas platform pipe network of claim 4, wherein the double-flange reducing connection assembly changes the outer diameter DN150 into DN50 through twice reducing.
6. The pressure regulating and purifying device for natural gas lift of shale gas platform pipe network of claim 1, wherein the filter comprises a body, a filter screen is arranged inside the body, the filter screen is perpendicular to the gas flow direction, a filter residue discharge hole is arranged at the bottom of the body, and a detachable top cover is arranged at the top of the body.
7. The pressure regulating and purifying device for natural gas lift of shale gas platform pipe network of claim 6, wherein the filter screen is provided with a plurality of layers, and the pore diameter of the filter screen is smaller at one end closer to the double-flange pressure-swing connection assembly.
8. The pressure regulating and purifying device for natural gas lift of shale gas platform pipe network according to any one of claims 1 to 7, wherein the shell of the throttling stop valve, the double flange connection assembly, the filter and the double flange variable pressure connection assembly are all provided with an insulating layer or a heating layer.
9. The pressure regulating and purifying device for natural gas lift of shale gas platform pipe network of claim 8, wherein the heat preservation layer is made of any one of glass wool, ceramic fiber and silicon carbide fiber, and the heating layer is a heating resistance wire spirally wound on the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021652401.2U CN212776826U (en) | 2020-08-10 | 2020-08-10 | Pressure regulating and purifying device for natural gas lift of shale gas platform pipe network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021652401.2U CN212776826U (en) | 2020-08-10 | 2020-08-10 | Pressure regulating and purifying device for natural gas lift of shale gas platform pipe network |
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| CN212776826U true CN212776826U (en) | 2021-03-23 |
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| CN202021652401.2U Active CN212776826U (en) | 2020-08-10 | 2020-08-10 | Pressure regulating and purifying device for natural gas lift of shale gas platform pipe network |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115012879A (en) * | 2022-06-27 | 2022-09-06 | 捷贝通石油技术集团股份有限公司 | Method for one-vehicle double lifting of compressed natural gas by vehicle-mounted compressor of shale gas platform |
-
2020
- 2020-08-10 CN CN202021652401.2U patent/CN212776826U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115012879A (en) * | 2022-06-27 | 2022-09-06 | 捷贝通石油技术集团股份有限公司 | Method for one-vehicle double lifting of compressed natural gas by vehicle-mounted compressor of shale gas platform |
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