CN111255416B - Drainage gas production device and gas production pump thereof - Google Patents
Drainage gas production device and gas production pump thereof Download PDFInfo
- Publication number
- CN111255416B CN111255416B CN201811466755.5A CN201811466755A CN111255416B CN 111255416 B CN111255416 B CN 111255416B CN 201811466755 A CN201811466755 A CN 201811466755A CN 111255416 B CN111255416 B CN 111255416B
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- Prior art keywords
- gas production
- pump
- piston
- pressing
- gravity hammer
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Classifications
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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
- E21B43/128—Adaptation of pump systems with down-hole electric drives
-
- 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
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
-
- 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
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Electromagnetic Pumps, Or The Like (AREA)
Abstract
The invention relates to a drainage gas production device and a gas production pump thereof. The drainage gas production device comprises a gas production pipe extending in the up-down direction, at least one gas production pump is connected in series on the gas production pipe, the gas production pump comprises a pump shell and a pump core arranged in the pump shell, the pump core comprises a pressing piston movably and hermetically assembled with the pump shell in the axial direction, a gravity hammer is coaxially arranged above the pressing piston, or a gravity hammer and a bearing seat for bearing the gravity hammer are coaxially arranged below the pressing piston; the pump core further comprises an electromagnet which lifts the gravity hammer when electrified and releases the gravity hammer when powered off so that the gravity hammer falls under the action of gravity and drives the pressing piston to move downwards, an elastic buffer seat is arranged below the pressing piston, a communication hole which is communicated with the upper side and the lower side of the elastic buffer seat is arranged on the elastic buffer seat, and a pressing injection hole which is communicated with the upper side and the lower side of the pressing piston for injecting the accumulated liquid is arranged on the pressing piston. The effusion is sprayed to the top of gas production pump from the intercommunicating pore and the jet orifice of pressing, and the effusion is atomized when spraying in the pit, is convenient for gather natural gas.
Description
Technical Field
The invention relates to a drainage gas production device and a gas production pump thereof.
Background
In the gas production process of the natural gas well, the production pressure is reduced, the liquid carrying capacity is poor, part of stratum water cannot be carried out of the ground by the production pipe column, finally, the gas well is flooded, and the residual natural gas cannot be produced, so that drainage and gas production are needed.
Disclosure of Invention
The invention aims to provide a drainage gas production device so as to solve the problem that residual natural gas cannot be produced after a natural gas well is flooded in the prior art; the invention also provides a gas production pump used by the drainage gas production device, so as to solve the problem that residual natural gas cannot be produced after the natural gas well is flooded in the prior art.
In order to solve the technical problems, the technical scheme of the drainage gas production device is as follows:
The drainage gas production device comprises a gas production pipe extending in the up-down direction, at least one gas production pump is connected in series on the gas production pipe, the gas production pump comprises a pump shell and a pump core arranged in the pump shell, an upper joint and a lower joint which are used for being connected with the gas production pipe are respectively arranged at the upper end and the lower end of the pump shell, the pump core comprises a pressing piston which is axially movably and hermetically assembled with the pump shell, a gravity hammer is coaxially arranged above the pressing piston, or a gravity hammer and a bearing seat for bearing the gravity hammer are coaxially arranged below the pressing piston; the pump core further comprises an electromagnet which lifts the gravity hammer when electrified and releases the gravity hammer when powered off, an elastic buffer seat is arranged below the pressing piston, communication holes which are communicated with the upper side and the lower side of the elastic buffer seat are formed in the elastic buffer seat, and pressing spray holes which are communicated with the upper side and the lower side of the pressing piston and used for spraying effusion are formed in the pressing piston.
The beneficial effect of this technical scheme lies in: when the electromagnet is electrified, the gravity hammer is lifted and falls down when the electromagnet is powered off, potential energy of the gravity hammer is converted into kinetic energy of the pressurizing piston so as to drive the pressurizing piston to move downwards, the pressurizing piston compresses the elastic buffer seat, accumulated liquid below the elastic buffer seat is compressed and then is sprayed to the upper part of the gas production pump from the communication hole and the pressurizing injection hole, and underground accumulated liquid is atomized during spraying, so that natural gas is conveniently collected.
The upper part of the pressing piston is provided with a guide rod, and the gravity hammer is sleeved on the guide rod. The guide rod plays a guiding role in the movement of the gravity hammer, so that the deflection of the gravity hammer is avoided.
The electromagnet is arranged above the guide rod, and the electromagnet and the gravity hammer form an electromagnetic suction mechanism. The electromagnet lifts the gravity hammer through electromagnetic attraction force, so that the electromagnet is prevented from being damaged when the gravity hammer falls down.
The top end of the guide rod is connected with a sealing piston, the electromagnet is arranged in the sealing piston, and the sealing piston is provided with a sealing injection hole which is communicated with the upper side and the lower side of the sealing piston for injecting effusion. The sealing piston allows the liquid accumulation by pressing the piston to be atomized again.
The elastic buffer seat comprises a spring and a spring seat connected with the lower end of the spring, and the spring seat is detachably connected with the pump shell. The spring seat is detachably connected with the pump shell, so that the air extraction pump can be maintained conveniently.
The spring seat is connected with the pump shell through a clamp spring. The snap spring is simple to connect and convenient to operate.
The pressing jet hole is a reducing hole with the lower end diameter larger than the upper end diameter. The reducing holes can enhance the atomization effect of the effusion.
And a wiring pipe used for wiring to be connected with the electromagnetic iron is arranged on the pump shell. The wiring pipe can be used for conducting the cable arrangement, and wiring is convenient.
The technical scheme of the air collecting pump is as follows:
The air pump comprises a pump shell and a pump core arranged in the pump shell, wherein an upper connector and a lower connector which are used for being connected with an air production pipe are respectively arranged at the upper end and the lower end of the pump shell, the pump core comprises a pressing piston which is movably and hermetically assembled with the pump shell in the axial direction, a gravity hammer is coaxially arranged above the pressing piston, or a gravity hammer and a bearing seat for bearing the gravity hammer are coaxially arranged below the pressing piston; the pump core further comprises an electromagnet which lifts the gravity hammer when electrified and releases the gravity hammer when powered off, an elastic buffer seat is arranged below the pressing piston, communication holes which are communicated with the upper side and the lower side of the elastic buffer seat are formed in the elastic buffer seat, and pressing spray holes which are communicated with the upper side and the lower side of the pressing piston and used for spraying effusion are formed in the pressing piston.
The beneficial effect of this technical scheme lies in: when the electromagnet is electrified, the gravity hammer is lifted and falls down when the electromagnet is powered off, potential energy of the gravity hammer is converted into kinetic energy of the pressurizing piston so as to drive the pressurizing piston to move downwards, the pressurizing piston compresses the elastic buffer seat, accumulated liquid below the elastic buffer seat is compressed and then is sprayed to the upper part of the gas production pump from the communication hole and the pressurizing injection hole, and underground accumulated liquid is atomized during spraying, so that natural gas is conveniently collected.
The upper part of the pressing piston is provided with a guide rod, and the gravity hammer is sleeved on the guide rod. The guide rod plays a guiding role in the movement of the gravity hammer, so that the deflection of the gravity hammer is avoided.
The electromagnet is arranged above the guide rod, and the electromagnet and the gravity hammer form an electromagnetic suction mechanism. The electromagnet lifts the gravity hammer through electromagnetic attraction force, so that the electromagnet is prevented from being damaged when the gravity hammer falls down.
The top end of the guide rod is connected with a sealing piston, the electromagnet is arranged in the sealing piston, and the sealing piston is provided with a sealing injection hole which is communicated with the upper side and the lower side of the sealing piston for injecting effusion. The sealing piston allows the liquid accumulation by pressing the piston to be atomized again.
The elastic buffer seat comprises a spring and a spring seat connected with the lower end of the spring, and the spring seat is detachably connected with the pump shell. The spring seat is detachably connected with the pump shell, so that the air extraction pump can be maintained conveniently.
The spring seat is connected with the pump shell through a clamp spring. The snap spring is simple to connect and convenient to operate.
The pressing jet hole is a reducing hole with the lower end diameter larger than the upper end diameter. The reducing holes can enhance the atomization effect of the effusion.
And a wiring pipe used for wiring to be connected with the electromagnetic iron is arranged on the pump shell. The wiring pipe can be used for conducting the cable arrangement, and wiring is convenient.
Drawings
FIG. 1 is a schematic view of a drainage gas production apparatus according to an embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of a gas production pump of the drainage gas production apparatus of FIG. 1;
Fig. 3 is a schematic structural diagram of the sealing piston, the pressurizing piston and the elastic buffer seat of the gas production pump of fig. 2.
Each mark in the figure: 1. a gas production pipe; 2. a gas production pump; 3. pressing the piston; 4. a sealing piston; 5. a guide rod; 6. a tapered bore; 7. a carrying platform; 8. an electromagnet; 9. a gravity hammer; 10. a spring; 11. a fixed block; 12. perforating; 13. a ring groove; 14. a wiring tube; 15. and a pump shell.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
In the embodiment 1 of the drainage gas production device, as shown in fig. 1 to 3, the drainage gas production device comprises a gas production pipe 1, wherein the gas production pipe 1 extends along the up-down direction, the lower part of the fig. 1 is the lower end of the gas production pipe 1, and two gas production pumps 2 are connected on the gas production pipe 1 in series; in other embodiments, there may be only one or three, four, etc. gas production pumps 2 connected in series on the gas production pipe 1 according to the length requirement of the gas well.
As shown in fig. 2 and 3, the gas production pump 2 includes a pump housing 15 and a pump core disposed in the pump housing 15, and upper and lower ends of the pump housing 15 are respectively connected with an upper joint and a lower joint for connection with the gas production tube 1. The pump core comprises a sealing piston 4, a guide rod 5, a pressing piston 3 and an elastic buffer seat which are sequentially arranged from top to bottom, and the sealing piston 4 and the pressing piston 3 are respectively in sliding sealing fit with a pump shell 15. The pressurizing piston 3 is provided with conical holes 6 which are uniformly distributed around the center line and have variable diameters, the diameter of the lower end of each conical hole 6 is larger than that of the upper end of each conical hole, and the conical holes 6 form pressurizing injection holes which are communicated with the upper side and the lower side of the pressurizing piston 3 for injecting effusion. The upper end of the pressing piston 3 is provided with a bearing table 7, a guide rod 5 is fixedly connected to the bearing table 7, the guide rod 5 is a hollow rod, so that the weight of the gas production pump 2 is reduced, the sealing piston 4 is fixedly connected to the top end of the guide rod 5, and the pressing piston 3 and the sealing piston 4 are fixedly connected through the guide rod 5.
As shown in fig. 2, an electromagnet 8 is fixed in the sealing piston 4, a gravity hammer 9 capable of moving up and down is sleeved on the guide rod 5, the guide rod 5 can guide the movement of the gravity hammer 9, the gravity hammer 9 is prevented from shifting, and the electromagnet 8 and the gravity hammer 9 form an electromagnetic suction mechanism. Tapered holes 6 with variable diameters are uniformly arranged in the sealing piston 4 around the central line of the sealing piston, the tapered holes 6 in the sealing piston 4 are identical to the tapered holes 6 in the pressing piston 3 in structure, and the tapered holes 6 form sealing injection holes which are communicated with the upper side and the lower side of the sealing piston 4 for injection of effusion. When the electromagnet 8 is electrified, electromagnetic attraction force is generated between the electromagnet 8 and the gravity hammer 9, the gravity hammer 9 lifts against gravity, and the gravity hammer 9 ascends to the top end of the guide rod 5 and contacts with the sealing piston 4; when the electromagnet 8 is powered off, the gravity hammer 9 falls under the action of gravity and hammers the pressing piston 3, and the pressing piston 3 drives the sealing piston 4 to descend through the guide rod 5.
As shown in fig. 3, the elastic buffer seat comprises a spring 10 and a fixed block 11 arranged below the spring 10, the fixed block 11 forms a spring seat of the spring 10, and the top end of the spring 10 is in pressing fit with the lower end surface of the pressing piston 3 so as to facilitate the elastic buffer seat to be removed from the pump shell 15. The fixed block 11 is of a cylindrical structure, two annular grooves 13 are formed in the peripheral surface of the fixed block 11 at intervals along the axial direction of the fixed block, snap springs are fixed in the annular grooves 13, and the fixed block 11 is detachably connected with the pump shell 15 through the snap springs; in other embodiments, the outer wall of the fixed block 11 is provided with external threads, the pump housing 15 is provided with internal threads, and the fixed block 11 is detachably connected with the pump housing 15 through a thread structure. Axially extending through holes 12 are uniformly arranged in the fixed block 11 around the central line of the fixed block, and the through holes 12 form communication holes for communicating the upper side and the lower side of the fixed block 11.
As shown in fig. 2, the pump cores further comprise a running pipe 14 extending up and down, and a cable for connecting the electromagnet 8 of each pump core with an external power supply is arranged in the running pipe 14.
When the drainage gas production device is used, the drainage gas production device is lowered into a set well depth, and at the moment, the gravity hammer 9 is positioned at the bottom end of the guide rod 5 and falls on the bearing table 7 under the action of gravity. The electromagnet 8 is electrified, electromagnetic attraction force is generated between the gravity hammer 9 and the electromagnet 8, the gravity hammer 9 is lifted to the top end of the guide rod 5 against gravity, and electric energy is converted into potential energy of the gravity hammer 9; the electromagnet 8 is powered off and releases the gravity hammer 9, the gravity hammer 9 hammers the bearing table 7 at the upper end of the pressing piston 3 under the action of gravity, potential energy of the gravity hammer 9 is converted into kinetic energy of the pressing piston 3, the pressing piston 3 drives the sealing piston 4 to move downwards through the guide rod 5, the spring 10 is compressed, accumulated liquid below the fixed block 11 passes through the perforation 12 in the fixed block 11 and upwards presses the piston 3 and the conical hole 6 in the sealing piston 4, and the accumulated liquid is compressed and atomized layer by layer and sprayed to a wellhead when passing through the perforation 12 and the conical hole 6, so that the capability of carrying liquid by underground gas is improved. The frequency of the movement of the gravity hammer 9 can be changed by controlling the frequency of the on-off of the electromagnet 8, so that the speed of the air injection of the air extraction pump 2 is changed, and the operation is simple and the use is convenient.
Example 2 of the drainage gas production device of the present invention differs from example 1 in that: in the embodiment 1, a guide rod is arranged above the pressing piston, a gravity hammer is sleeved on the guide rod, in the embodiment, the guide rod is omitted, the sealing piston is connected with the pressing piston through a sleeve, and the gravity hammer is arranged in the sleeve.
Example 3 of the drainage gas production apparatus of the present invention differs from example 1 in that: in the embodiment 1, the gravity hammer is arranged above the pressing piston, in the embodiment, a connecting rod is arranged below the pressing piston, the gravity hammer is sleeved on the connecting rod, a bearing seat for bearing the gravity hammer is fixed at the bottom end of the connecting rod, and the lower end face of the bearing seat is in pressing fit with the spring.
Example 4 of the drainage gas production device of the present invention differs from example 1 in that: in the embodiment 1, the electromagnet is fixed in the sealing piston, the electromagnet lifts the gravity hammer through electromagnetic attraction, in the embodiment, the electromagnet is arranged in the pressurizing piston, the gravity hammer is a permanent magnet, the electromagnet lifts the gravity hammer through repulsive force when being electrified, and the electromagnet and the gravity hammer form an electromagnetic repulsive force mechanism.
Example 5 of the drainage gas production device of the present invention differs from example 1 in that: in the embodiment 1, the elastic buffer seat includes a spring and a spring seat, and in the embodiment, the elastic buffer seat is a rubber cylinder and a rubber cylinder seat.
Example 6 of the drainage gas production apparatus of the present invention differs from example 1 in that: in the embodiment 1, the pressing jet hole and the sealing jet hole are both conical holes, and in the embodiment, the pressing jet hole and the sealing jet hole may be spiral holes.
The specific structure of the embodiment of the air extraction pump of the invention is the same as that of the air extraction pump of the drainage air extraction device in any of the above embodiments, and will not be repeated here.
Claims (3)
1. The gas production pump, its characterized in that: the air pump comprises a pump shell and a pump core arranged in the pump shell, and the upper end and the lower end of the pump shell are respectively connected with an upper connector and a lower connector which are used for being connected with an air production pipe; the pump core comprises a sealing piston, a guide rod, a pressing piston and an elastic buffer seat which are sequentially arranged from top to bottom, and the sealing piston and the pressing piston are respectively in sliding sealing fit with the pump shell; the pressing piston is provided with conical holes which are uniformly distributed around the center line and have variable diameters, the diameter of the lower end of each conical hole is larger than that of the upper end of each conical hole, and the conical holes form pressing spray holes which are communicated with the upper side and the lower side of the pressing piston for effusion spraying; the upper end of the pressing piston is provided with a bearing table, a guide rod is fixedly connected to the bearing table, the guide rod is a hollow rod, so that the weight of the gas production pump is reduced, the sealing piston is fixedly connected to the top end of the guide rod, and the pressing piston is fixedly connected with the sealing piston through the guide rod; an electromagnet is fixed in the sealing piston, a gravity hammer capable of moving up and down is sleeved on the guide rod, the guide rod can guide the movement of the gravity hammer, the gravity hammer is prevented from shifting, and the electromagnet and the gravity hammer form an electromagnetic suction mechanism; tapered holes with variable diameters are uniformly arranged in the sealing piston around the central line of the sealing piston, the tapered holes in the sealing piston are identical to the tapered holes in the pressing piston in structure, and the tapered holes form sealing injection holes which are communicated with the upper side and the lower side of the sealing piston for injecting accumulated liquid; an elastic buffer seat is arranged below the pressing piston, and a communication hole for communicating the upper side and the lower side of the elastic buffer seat is arranged on the elastic buffer seat; the elastic buffer seat comprises a spring and a spring seat connected with the lower end of the spring, and the spring seat is detachably connected with the pump shell; the spring seat is connected with the pump shell through a clamp spring.
2. Drainage gas production device, its characterized in that: comprising a gas production pipe extending in the up-down direction, at least one gas production pump as claimed in claim 1 being connected in series to the gas production pipe.
3. The drainage and gas production device of claim 2, wherein: and a wiring pipe used for wiring to be connected with the electromagnetic iron is arranged on the pump shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811466755.5A CN111255416B (en) | 2018-12-03 | 2018-12-03 | Drainage gas production device and gas production pump thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811466755.5A CN111255416B (en) | 2018-12-03 | 2018-12-03 | Drainage gas production device and gas production pump thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111255416A CN111255416A (en) | 2020-06-09 |
| CN111255416B true CN111255416B (en) | 2024-10-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811466755.5A Active CN111255416B (en) | 2018-12-03 | 2018-12-03 | Drainage gas production device and gas production pump thereof |
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| Country | Link |
|---|---|
| CN (1) | CN111255416B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209637730U (en) * | 2018-12-03 | 2019-11-15 | 中国石油化工股份有限公司 | Water drainage gas production device and its gas production pump |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4363606A (en) * | 1980-06-30 | 1982-12-14 | Kilgore Raymond L | Free piston pump for pumping liquids from a well |
| CN2088611U (en) * | 1990-12-20 | 1991-11-13 | 南方冶金学院 | Deep blasting hole water drainage device |
| US6499384B1 (en) * | 2000-11-28 | 2002-12-31 | Jim S. Blair | Piston apparatus for gas/liquid pipeline |
| EP1916380A1 (en) * | 2006-10-24 | 2008-04-30 | Bp Exploration Operating Company Limited | Method and apparatus for removing liquid from a gas well |
| CN204140349U (en) * | 2014-09-05 | 2015-02-04 | 胜利油田北方实业集团有限责任公司 | A kind of tubing pump |
| CN205387930U (en) * | 2016-01-14 | 2016-07-20 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Low -pressure gas well two -fluid supersonic speed atomizing water pumping gas production system |
| CN105921338B (en) * | 2016-06-07 | 2018-10-30 | 太原理工大学 | A kind of lower flow self-oscillation high-efficiency atomizer of hypersonic air flow promotion |
| CN205744406U (en) * | 2016-07-07 | 2016-11-30 | 张海龙 | Oil-well pump of oil well increases row and helps picking device |
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2018
- 2018-12-03 CN CN201811466755.5A patent/CN111255416B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209637730U (en) * | 2018-12-03 | 2019-11-15 | 中国石油化工股份有限公司 | Water drainage gas production device and its gas production pump |
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| CN111255416A (en) | 2020-06-09 |
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