CN111577209A - Pressurization device for mechanical pumping drainage gas production well mouth and pressurization method thereof - Google Patents
Pressurization device for mechanical pumping drainage gas production well mouth and pressurization method thereof Download PDFInfo
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- CN111577209A CN111577209A CN202010494338.2A CN202010494338A CN111577209A CN 111577209 A CN111577209 A CN 111577209A CN 202010494338 A CN202010494338 A CN 202010494338A CN 111577209 A CN111577209 A CN 111577209A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 238000005086 pumping Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002699 waste material Substances 0.000 claims abstract description 4
- 235000020681 well water Nutrition 0.000 claims description 16
- 239000002349 well water Substances 0.000 claims description 16
- 238000012856 packing Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 92
- 238000000926 separation method Methods 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013051 drainage agent Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 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
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
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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
- E21B43/34—Arrangements for separating materials produced by the well
- E21B43/38—Arrangements for separating materials produced by the well in the well
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
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- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention provides a pumping drainage gas production wellhead supercharging device and a supercharging method thereof, the device at least comprises a gas well casing, a polish rod which is arranged in the gas well casing and can move up and down, a deep well pump oil pipe which is arranged in the gas well casing, a gas collecting pipeline for collecting gas and a liquid collecting pipeline for collecting waste liquid, and the device also comprises: the lower part of the outer working barrel is inserted into a gas well casing, the outer working barrel is hermetically connected with the gas well casing, and the lower end of the outer working barrel is provided with a variable diameter and is communicated with a deep well pump oil pipe; the lower end of the eye tube is detachably connected with the reducing part of the external working barrel; the lower part of the inner working barrel is inserted into the outer working barrel and is detachably connected with the top end of the eye tube, the top end of the outer working barrel is detachably connected with the outer circumferential surface of the inner working barrel, the polished rod penetrates through the inner working barrel and the eye tube, and the top end of the inner working barrel is hermetically connected with the outer circumferential surface of the polished rod; the invention improves the production efficiency and the utilization rate of the gas well with low gas production and high water content.
Description
Technical Field
The invention relates to the field of oil field gas production, in particular to a pressurization device and a pressurization method for a mechanical pumping drainage gas production wellhead.
Background
At present, increasing the consumption of natural gas in China, putting more and more hypotonic and ultralow-permeability gas wells into production, and as the development time is prolonged, the yield of the gas well is reduced, and meanwhile, the water produced by the well stratum can be discharged irregularly or continuously, so that the gas well cannot be produced by flooding; the drainage form may be liquid or foam, but the foam drainage method needs to continuously add foam drainage agent, the production cost is high, the gas lift valve has more faults, the maintenance procedures are more, and the gas flow is required to be more than 1000 square/day, thus seriously affecting the normal production of the gas field.
Disclosure of Invention
The invention provides a boosting device for a gas production wellhead by pumping drainage and a boosting method thereof, which solve the problems that the gas well yield is reduced, and simultaneously, water can be discharged irregularly or continuously under the well stratum water, so that the gas well is flooded and cannot be produced, and gas-liquid separation is realized, so that the gas outlet of the stratum pressed by the wellbore accumulated liquid is reduced, meanwhile, a ground gas-liquid separation device is reduced, and the production efficiency and the utilization rate of the gas well with low gas yield and high water content are improved.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
the utility model provides a machine is taken out drainage gas recovery well head supercharging device, includes the gas well sleeve pipe at least, sets up the polished rod of activity from top to bottom in the gas well sleeve pipe and sets up at the intraductal deep-well pump oil pipe of gas well sleeve, is used for collecting gaseous gas collecting line and the collection liquid pipeline of collecting the waste liquid, still includes:
the lower part of the outer working barrel is inserted into a gas well casing, the outer working barrel is hermetically connected with the gas well casing, and the lower end of the outer working barrel is provided with a variable diameter and is communicated with a deep well pump oil pipe;
the lower end of the eye tube is detachably connected with the reducing part of the external working barrel;
the lower part of the inner working barrel is inserted into the outer working barrel and is detachably connected with the top end of the eye tube, the top end of the outer working barrel is detachably connected with the outer circumferential surface of the inner working barrel, the polished rod penetrates through the inner working barrel and the eye tube, and the top end of the inner working barrel is hermetically connected with the outer circumferential surface of the polished rod;
the piston is detachably connected to the outer circumferential surface of the polish rod, and the outer circumferential surface of the piston is in sliding connection with the inner wall surface of the inner working cylinder;
a relief portion in communication with the gas well casing;
one end of the air inlet part is communicated with the inner working barrel, and the other end of the air inlet part is communicated with the gas well casing;
one end of the exhaust part is communicated with the inner working cylinder, and the other end of the exhaust part is communicated with the gas collecting pipeline;
and one end of the drainage part is communicated with the external working barrel, and the other end of the drainage part is communicated with the liquid collecting pipeline.
And a flange is fixed on the outer wall surface of the outer working barrel and is detachably and hermetically connected with the top end of the gas well casing.
The top end of the inner working barrel is detachably connected with a gas-proof wear-resistant packing box, and the polish rod penetrates through the gas-proof wear-resistant packing box and extends into the inner working barrel.
The emptying part comprises a first pipe and a first gate valve, one end of the first pipe is communicated with the gas well casing, and the other end of the first pipe is detachably connected with the first gate valve.
The air inlet portion comprises a second pipe, a first check valve and a second gate valve, one end of the second pipe is communicated with the inner working barrel, the other end of the second pipe is communicated with the emptying portion, the first gate valve and the first check valve can be detachably connected to the second pipe, and the first gate valve and the first check valve are close to the emptying portion and the inner working barrel respectively.
The exhaust portion includes pipe three, check valve two and gate valve three, three both ends of pipe communicate with interior working barrel and gas collecting pipeline respectively, the connection can be dismantled on pipe three with gate valve three to check valve two, check valve two and gate valve three are close to respectively in interior working barrel and gas collecting pipeline intercommunication.
The water discharging part comprises a pipe IV, a check valve III and a gate valve IV, and two ends of the pipe IV are respectively communicated with the outer working barrel and the liquid collecting pipeline.
A pressure boosting device for a mechanical pumping drainage gas production wellhead and a pressure boosting method thereof at least comprise any one of the pressure boosting devices for the mechanical pumping drainage gas production wellhead, and further comprise the following steps:
an upstroke: the piston is driven by the polish rod to move upwards in the inner working cylinder, gas well water moves upwards in the oil pipe of the deep well pump, the piston and the gas well water enter the inner working cylinder and the outer working cylinder through the eye pipe, meanwhile, the piston moves upwards to compress the space of the inner working cylinder, when the pressure is greater than the pressure set value of the check valve II, the check valve II is opened, and the gas enters the pipeline III through the check valve II and then enters the gas collection pipeline through the gate valve III;
a down stroke: the polish rod drives the piston to move downwards, negative pressure is formed in the inner working barrel, when the pressure is greater than a first check valve, the first check valve is opened, gas in the gas well casing passes through the first pipeline, enters the second pipeline through the first gate valve, enters the inner working barrel through the first check valve, gas well water moves downwards along with the downward propulsion of the piston, the pressures in the outer working barrel of the eye tube and the oil pipe of the deep well pump are increased, when the pressure is greater than a set value of the third check valve, the third check valve is opened, the gas well water enters the outer working barrel through the eye tube, the gas well water enters the fourth pipe, and the gas well water enters the liquid collecting pipeline through the third check valve.
The invention has the beneficial effects that: the gas-liquid separation is realized by pressurizing and producing gas at the wellhead plunger pump, so that the gas outlet of a shaft effusion pressing stratum is reduced, meanwhile, the ground gas-liquid separation device is reduced, and the production efficiency and the utilization rate of a gas well with low gas production and high water content are improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1-gas well casing; 2-eye tube; 3, a first gate valve; 4-a gate valve II; 5-a flange; 6-inner working barrel; 7-pipe two; 8-outer working barrel; 9-a one-way valve I; 10-gas-proof wear-resistant packing box; 11-a polish rod; 12-a one-way valve II; 13-gate valve III; 14-one-way valve III; 15-gate valve four; 16-a piston; 17-tube one; 18-tube III; 19-tube four; 20-deep well pump tubing.
Detailed Description
Example 1:
referring to fig. 1, which is a schematic structural diagram of embodiment 1 of the present invention, a pressure boosting device for a gas production wellhead with pumping drainage and water production, at least includes a gas well casing 1, a polish rod 11 disposed in the gas well casing 1 and movable up and down, a deep well pump oil pipe 20 disposed in the gas well casing 1, a gas collection pipeline for collecting gas, and a liquid collection pipeline for collecting waste liquid, and is characterized by further including:
the lower part of the outer working barrel 8 is inserted into the gas well casing 1, the outer working barrel 8 is hermetically connected with the gas well casing 1, and the lower end of the outer working barrel 8 is provided with a variable diameter communicated with a deep well pump oil pipe 20;
the eye tube 2 is arranged in the external working barrel 8, and the lower end of the eye tube 2 is detachably connected with the reducing part of the external working barrel 8;
the lower part of the inner working barrel 6 is inserted into the outer working barrel 8 and is detachably connected with the top end of the eye tube 2, the top end of the outer working barrel 8 is detachably connected with the outer circumferential surface of the inner working barrel 6, the polished rod 11 penetrates through the inner working barrel 6 and the eye tube 2, and the top end of the inner working barrel 6 is hermetically connected with the outer circumferential surface of the polished rod 11;
a piston 16, wherein the piston 16 is detachably connected with the outer circumferential surface of the polish rod 11, and the outer circumferential surface of the piston 16 is in sliding connection with the inner wall surface of the inner working barrel 6;
the emptying part is communicated with the gas well casing 1;
one end of the air inlet part is communicated with the inner working barrel 6, and the other end of the air inlet part is communicated with the gas well casing 1;
an exhaust part, one end of which is communicated with the inner working cylinder 6, and the other end of which is communicated with the gas collecting pipeline;
and one end of the water discharging part is communicated with the outer working barrel 8, and the other end of the water discharging part is communicated with a liquid collecting pipeline.
In actual use: the deep well pump continuously pumps liquid upwards through a deep well pump oil pipe 20, when a piston 16 is driven by a polish rod 11 to move downwards in an inner working cylinder 6, the piston 16 moves downwards, the spaces in the inner working cylinder 6, an outer working cylinder 8 and the deep well pump oil pipe 20 are reduced, the pressures in the outer working cylinder 8 and the deep well pump oil pipe 20 are increased, the liquid is squeezed into the outer working cylinder 8 through an eye tube 2 and is discharged through a drainage part to enter a liquid collecting pipeline, and the pressurization and liquid drainage are completed;
when the piston 16 moves downwards, the space in the inner working cylinder 6 is increased to form negative pressure, and gas in the well enters the inner working cylinder 6 through the gas inlet part to finish suction;
when the piston 16 moves to the lower limit position, the piston 16 is positioned in the lower end of the inner cylinder 6.
When the polish rod 11 drives the piston 16 to move upwards in the inner working cylinder 6, the piston 16 compresses the space in the inner working cylinder 6, compresses the gas in the inner working cylinder 6, increases the pressure of the gas, and enters a gas collecting pipeline through the gas discharging part to complete pressurization and gas discharging;
when the piston 16 moves upwards, the deep well pump continuously pumps liquid upwards through the deep well pump oil pipe 20, and the liquid enters the inner working barrel 6 to wait for the piston 16 to move downwards and push into the outer working barrel 8.
The pressurization of the gas and the pressurization of the liquid are accomplished by the upward and downward movement of the piston 16.
Example 2:
referring to fig. 1, the present embodiment is different from embodiment 1 in that: and a flange 5 is fixed on the outer wall surface of the outer working barrel 8, and the flange 5 is detachably and hermetically connected with the top end of the gas well casing 1.
In actual use: the outer working barrel 8 is hermetically connected with the gas well casing 1 through the flange 5, so that the gas well casing is convenient to disassemble and assemble.
Example 3:
referring to fig. 1, the present embodiment is different from embodiment 1 in that: the top end of the inner working barrel 6 is detachably connected with a gas-proof wear-resistant packing box 10, and the polish rod 11 penetrates through the gas-proof wear-resistant packing box 10 and extends into the inner working barrel 6.
In actual use: the polish rod 11 can keep the sealing in the inner working barrel 6 when the polish rod 11 moves up and down through the gas-proof wear-resistant packing box 10, so that gas leakage is prevented.
Example 4:
referring to fig. 1, the present embodiment is different from embodiment 1 in that: the emptying part comprises a first pipe 17 and a first gate valve 3, one end of the first pipe 17 is communicated with the gas well casing 1, and the other end of the first pipe 17 is detachably connected with the first gate valve 3.
In actual use: when working barrel 6 and outer working barrel 8 in the installation, open gate valve 3, gas in gas well casing 1 is discharged by gate valve 3 through pipe 17 again, prevents that flange 5, inner working barrel 6 and outer working barrel 8 from when the installation, because gaseous incessant discharge can't seal, increases its installation degree of difficulty, when dismantling, prevents that internal pressure from because opening the gap suddenly when dismantling, and gaseous blows to staff or part, causes the impact damage.
Example 5:
referring to fig. 1, the present embodiment is different from embodiment 1 in that: the air inlet portion comprises a pipe two 7, a check valve one 9 and a gate valve two 4, one end of the pipe two 7 is communicated with the inner working barrel 6, the other end of the pipe two 7 is communicated with the emptying portion, the gate valve one 3 and the check valve one 9 can be detachably connected to the pipe two 7, and the gate valve one 3 and the check valve one 9 are close to the emptying portion and the inner working barrel 6 respectively.
In actual use: firstly, the second gate valve 4 is opened, the first gate valve 3 is closed, when the piston 16 moves downwards, when the difference between the negative pressure in the inner working cylinder 6 and the pressure in the gas well casing 1 is overlarge, the first check valve 9 is opened under pressure, the gas in the gas well casing 1 enters the inner working cylinder 6 through the first pipe 17 and the second pipe 7, and the gas in the inner working cylinder 6 can be prevented from reversely flowing back when being compressed through the first check valve 9.
In this embodiment, the first check valve 9 is a constant pressure check valve.
Example 6:
referring to fig. 1, the present embodiment is different from embodiment 1 in that: the exhaust portion includes pipe three 18, check valve two 12 and gate valve three 13, pipe three 18 both ends communicate with interior working barrel 6 and gas collecting pipeline respectively, the connection can be dismantled on pipe three 18 to check valve two 12 and gate valve three 13, check valve two 12 and gate valve three 13 are close to respectively in interior working barrel 6 and gas collecting pipeline intercommunication.
In actual use: and opening the gate valve III 13, extruding the gas in the inner working cylinder 6 when the piston 16 moves upwards, and opening the check valve II 12 under pressure when the certain value is reached, so that the gas enters the pipe III 18 and enters the gas collection pipeline through the pipe III 18.
In this embodiment, the second check valve 12 is a constant pressure check valve.
Example 7:
referring to fig. 1, the present embodiment is different from embodiment 1 in that: the drainage part comprises a pipe IV 19, a one-way valve III 14 and a gate valve IV 15, and two ends of the pipe IV 19 are respectively communicated with the outer working barrel 8 and the liquid collecting pipeline.
In actual use: when the gate valve IV 15 is opened and the piston 16 moves downwards, the liquid pressure is increased while the deep well pump continuously pumps liquid upwards through the deep well pump oil pipe 20, the check valve III 14 is opened, the liquid enters the liquid collecting pipeline through the pipe IV 19, and the check valve III 14 is closed when the hydraulic pressure is insufficient.
In this embodiment, the third check valve 14 is a constant pressure check valve.
Example 8:
referring to fig. 1, a pressure boosting device for a mechanical pumping drainage gas production wellhead and a pressure boosting method thereof are characterized by comprising at least one pressure boosting device for a mechanical pumping drainage gas production wellhead as claimed in any one of claims 1 to 4, and further comprising the following steps:
an upstroke: the polish rod 11 drives the piston 16 to move upwards, the gas well water moves upwards in the deep well pump oil pipe 20, when the piston 16 moves to the lower part of the eye pipe 2, when the pressure of the outer working cylinder 8 and the inner working cylinder 6 is greater than the set value of the three one-way valve 14, the gas well water enters the pipeline three 19 through the opening of the three one-way valve 14, the gas well water is discharged through the gate valve four 15, when the piston 16 moves to the upper part of the eye pipe 2, the gas well water enters the outer working cylinder 8 through the eye pipe 2, the space of the inner working cylinder 6 is compressed at the same time, when the pressure is greater than the set value of the pressure of the two one-way valve 12, the two one-way valve 12 is opened, the gas enters the pipeline three 18;
a down stroke: the polish rod 11 drives the piston 16 to move downwards, when the polish rod moves to the top end of the eye tube 2, the inner working cylinder 6 forms negative pressure, when the pressure is greater than the first one-way valve 9, the first one-way valve 9 is opened, gas in the gas well casing 1 enters the second pipeline 7 through the first gate valve 3 and enters the inner working cylinder 6 through the first one-way valve 9, gas well water moves downwards along with the piston 16 and enters the outer working cylinder 8 through the eye tube 2, when the pressure is greater than the set value of the third one-way valve 14, the third one-way valve 14 is opened, the gas well water enters the third pipeline 19 through the third one-way valve 14 and is discharged through the fourth gate valve 15.
While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and the scope of the present invention is within the scope of the claims.
Claims (8)
1. The utility model provides a machine pumping drainage gas production well head supercharging device, includes gas well sleeve pipe (1) at least, sets up polished rod (11) and the deep-well pump oil pipe (20) of setting in gas well sleeve pipe (1) about the activity in gas well sleeve pipe (1), is used for collecting the gas collection pipeline of gas and the collection liquid pipeline of collecting the waste liquid, its characterized in that still includes:
the lower part of the outer working barrel (8) is inserted into the gas well casing (1), the outer working barrel (8) is hermetically connected with the gas well casing (1), and the variable diameter at the lower end of the outer working barrel (8) is communicated with a deep well pump oil pipe (20);
the eye tube (2) is arranged in the external working cylinder (8), and the lower end of the eye tube (2) is detachably connected with the reducing part of the external working cylinder (8);
the lower part of the inner working barrel (6) is inserted into the outer working barrel (8) and is detachably connected with the top end of the eye tube (2), the top end of the outer working barrel (8) is detachably connected with the outer circumferential surface of the inner working barrel (6), the polished rod (11) penetrates through the inner working barrel (6) and the eye tube (2), and the top end of the inner working barrel (6) is hermetically connected with the outer circumferential surface of the polished rod (11);
the piston (16), the piston (16) is connected to the outer circumference of the polished rod (11) in a detachable mode, and the outer circumference of the piston (16) is connected with the inner wall surface of the inner working cylinder (6) in a sliding mode;
the emptying part is communicated with the gas well casing (1);
one end of the air inlet part is communicated with the inner working barrel (6), and the other end of the air inlet part is communicated with the gas well casing (1);
one end of the exhaust part is communicated with the inner working cylinder (6), and the other end of the exhaust part is communicated with the gas collecting pipeline;
and one end of the water discharging part is communicated with the outer working barrel (8), and the other end of the water discharging part is communicated with a liquid collecting pipeline.
2. The pressure boosting device for the mechanical pumping drainage gas production wellhead as claimed in claim 1, wherein a flange (5) is fixed on the outer wall surface of the outer working cylinder (8), and the flange (5) is detachably and hermetically connected with the top end of the gas well casing (1).
3. The pressure boosting device of the mechanical pumping drainage gas production wellhead according to claim 1, characterized in that a gas-proof and wear-resistant packing box (10) is detachably connected to the top end of the inner working cylinder (6), and the polish rod (11) penetrates through the gas-proof and wear-resistant packing box (10) and extends into the inner working cylinder (6).
4. The pumped drainage gas production wellhead pressure boosting device of claim 1, wherein the emptying part comprises a first pipe (17) and a first gate valve (3), one end of the first pipe (17) is communicated with the gas well casing (1), and the other end of the first pipe (17) is detachably connected with the first gate valve (3).
5. The machine pumping drainage gas production wellhead supercharging device of claim 1, characterized in that the air inlet portion comprises a second pipe (7), a first check valve (9) and a second gate valve (4), one end of the second pipe (7) is communicated with the inner working barrel (6), the other end of the second pipe (7) is communicated with the emptying portion, the first gate valve (3) and the first check valve (9) are detachably connected to the second pipe (7), and the first gate valve (3) and the first check valve (9) are respectively close to the emptying portion and the inner working barrel (6).
6. The pressure boosting device of the mechanical pumping drainage gas production wellhead as claimed in claim 1, wherein the exhaust part comprises a pipe III (18), a check valve II (12) and a gate valve III (13), two ends of the pipe III (18) are respectively communicated with the inner working cylinder (6) and the gas collecting pipeline, the check valve II (12) and the gate valve III (13) are detachably connected to the pipe III (18), and the check valve II (12) and the gate valve III (13) are respectively communicated with the inner working cylinder (6) and the gas collecting pipeline.
7. The device for pressurizing a wellhead by pumping drainage and gas production according to claim 1, wherein the drainage part comprises a pipe four (19), a one-way valve three (14) and a gate valve four (15), and two ends of the pipe four (19) are respectively communicated with the outer working barrel (8) and the liquid collecting pipeline.
8. A pressure boosting device for a mechanical pumping drainage gas production wellhead and a pressure boosting method thereof are characterized by at least comprising the pressure boosting device for the mechanical pumping drainage gas production wellhead as claimed in any one of claims 1 to 4, and further comprising the following steps:
an upstroke: a polish rod (11) drives a piston (16) to move upwards in an inner working cylinder (6), gas well water moves upwards in a deep well pump oil pipe (20), the piston (16) enables the gas well water to enter the inner working cylinder (6) and an outer working cylinder (8) through an eye pipe (2), meanwhile, the piston (16) moves upwards to compress the space of the inner working cylinder (6), when the pressure is greater than the pressure set value of a check valve II (12), the check valve II (12) is opened, gas enters a pipeline III (18) through the check valve II (12), and then enters a gas collection pipeline through a gate valve III (13);
a down stroke: the polish rod (11) drives the piston (16) to move downwards, negative pressure is formed in the inner working barrel (6), when the pressure is larger than the first one-way valve (9), the first one-way valve (9) is opened, gas in the gas well casing (1) enters the second pipeline (7) through the first pipeline (17) and then enters the inner working barrel (6) through the first one-way valve (9), gas well water moves downwards along with the downward propulsion of the piston (16) to increase the pressure in the outer working barrel (8) of the eye tube (2) and the pressure in the deep well pump oil pipe (20), when the pressure is larger than the set value of the third one-way valve (14), the third one-way valve (14) is opened, the gas well water enters the outer working barrel (8) through the eye tube (2), and the fourth one-way valve (14) and the gate valve (15) enter the liquid collecting pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010494338.2A CN111577209A (en) | 2020-06-03 | 2020-06-03 | Pressurization device for mechanical pumping drainage gas production well mouth and pressurization method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010494338.2A CN111577209A (en) | 2020-06-03 | 2020-06-03 | Pressurization device for mechanical pumping drainage gas production well mouth and pressurization method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112900597A (en) * | 2021-01-25 | 2021-06-04 | 黄山学院 | Sponge city construction groundwater recharge well |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2350453A1 (en) * | 2000-07-18 | 2002-01-18 | Alvin C. Liknes | Method and apparatus for removing water from well-bore of gas wells to permit efficient production of gas |
| CN204457684U (en) * | 2014-12-12 | 2015-07-08 | 中国石油天然气股份有限公司 | Centralized pressurization gas lift drainage gas production system for low-pressure high-yield water and gas wells |
| CN205012973U (en) * | 2015-06-09 | 2016-02-03 | 李骥 | Machine pump drainage liquid gas production device |
| US20180320492A1 (en) * | 2015-11-02 | 2018-11-08 | Maohe SHEN | Device and method for water drainage and gas production by pressure control and gas lift |
| CN111021995A (en) * | 2019-12-18 | 2020-04-17 | 中国石油天然气股份有限公司 | Mechanical pumping drainage gas production wellhead pressurization process pipe column |
| CN111042771A (en) * | 2019-11-21 | 2020-04-21 | 中国石油天然气股份有限公司 | Wellhead casing gas pressurization recovery device, system, method and application |
-
2020
- 2020-06-03 CN CN202010494338.2A patent/CN111577209A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2350453A1 (en) * | 2000-07-18 | 2002-01-18 | Alvin C. Liknes | Method and apparatus for removing water from well-bore of gas wells to permit efficient production of gas |
| CN204457684U (en) * | 2014-12-12 | 2015-07-08 | 中国石油天然气股份有限公司 | Centralized pressurization gas lift drainage gas production system for low-pressure high-yield water and gas wells |
| CN205012973U (en) * | 2015-06-09 | 2016-02-03 | 李骥 | Machine pump drainage liquid gas production device |
| US20180320492A1 (en) * | 2015-11-02 | 2018-11-08 | Maohe SHEN | Device and method for water drainage and gas production by pressure control and gas lift |
| CN111042771A (en) * | 2019-11-21 | 2020-04-21 | 中国石油天然气股份有限公司 | Wellhead casing gas pressurization recovery device, system, method and application |
| CN111021995A (en) * | 2019-12-18 | 2020-04-17 | 中国石油天然气股份有限公司 | Mechanical pumping drainage gas production wellhead pressurization process pipe column |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112900597A (en) * | 2021-01-25 | 2021-06-04 | 黄山学院 | Sponge city construction groundwater recharge well |
| CN112900597B (en) * | 2021-01-25 | 2022-07-12 | 黄山学院 | Sponge city construction groundwater recharge well |
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