CN115163010A - Foam discharging agent feeding device suitable for various natural gas wells - Google Patents
Foam discharging agent feeding device suitable for various natural gas wells Download PDFInfo
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- CN115163010A CN115163010A CN202210729381.1A CN202210729381A CN115163010A CN 115163010 A CN115163010 A CN 115163010A CN 202210729381 A CN202210729381 A CN 202210729381A CN 115163010 A CN115163010 A CN 115163010A
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- natural gas
- feeding
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- foam discharging
- medicine
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- 238000007599 discharging Methods 0.000 title claims abstract description 88
- 239000006260 foam Substances 0.000 title claims abstract description 80
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 78
- 239000002343 natural gas well Substances 0.000 title claims abstract description 43
- 239000003814 drug Substances 0.000 claims abstract description 82
- 239000000126 substance Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 43
- 238000004519 manufacturing process Methods 0.000 abstract description 21
- 239000008259 solid foam Substances 0.000 abstract description 20
- 239000007787 solid Substances 0.000 abstract description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 14
- 239000007788 liquid Substances 0.000 description 10
- 239000003345 natural gas Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 239000008258 liquid foam Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229940126589 solid medicine Drugs 0.000 description 4
- 239000013051 drainage agent Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005380 natural gas recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention discloses a foam discharging agent feeding device suitable for various natural gas wells, which comprises a medicine storage barrel, an intermediate pipeline and a blanking pipeline, wherein a medicine feeding assembly is arranged inside the blanking pipeline, the medicine feeding assembly comprises a medicine feeding pulling wheel rotatably arranged inside the blanking pipeline, and at least one pulling wheel notch is formed in the medicine feeding pulling wheel; and a main control valve is installed at the lower end of the middle pipeline, and a discharge port of the main control valve is communicated with the natural gas well through a wellhead connecting flange. According to the invention, the feeding amount of the solid medicament can be accurately controlled through the feeding shifting wheel, the shifting wheel rotates for one circle to represent that the medicament storage device feeds a solid foam drainage medicament to the middle channel at most, and the feeding amount is controlled by controlling the rotation number of the feeding impeller when the medicament is fed, so that the feeding amount of the foam drainage medicament is more accurate, the feeding amount of the foam drainage medicament meets the feeding requirement, and the gas production efficiency of a natural gas well is improved.
Description
Technical Field
The invention particularly relates to the technical field of foam discharging agent feeding, and particularly relates to a foam discharging agent feeding device suitable for various natural gas wells.
Background
At present, the domestic natural gas exploitation technology faces a plurality of problems, such as difficult exploration, insufficient technology, difficult separation of gas impurities and the like, and the problem of water accumulation at the bottom of a natural gas well seriously influences the natural gas exploitation efficiency. Gas wells operate at depths of several kilometers below the earth, and not only natural gas, but also mixtures of natural gas with water and other substances enter the gas well during production. Since water has a higher density than natural gas, it is not pumped to the surface with the natural gas, but instead is deposited downhole, forming a so-called bottom hole fluid. The accumulated liquid at the bottom of the well can slowly block the shaft, even the gas well is completely submerged by water, and the stratum near the gas well can be seriously damaged, so that the gas production efficiency and the gas production rate of the gas well are greatly reduced.
The drainage gas production process is related technology which is created for solving the problem of liquid accumulation at the bottom of a natural gas well and ensuring the gas production efficiency of the natural gas well, and the most widely adopted method at present is a foam drainage gas production method, namely when the liquid accumulation at the bottom of the well is serious, a chemical method, such as adding drainage medicaments such as a foam drainage rod or a foam drainage ball, is needed to be used, so that the liquid accumulation at the bottom of the gas well is changed into a foam shape, and the liquid accumulation can be pumped away by a gas pipe, so that the gas production of the gas well can normally work. The basic principle of the method is that a drainage agent filling device is used for feeding a foam drainage agent into a natural gas well, the foam drainage agent generates a chemical reaction after reaching a bottom accumulated water part, gas and liquid are mixed to form foam under the stirring of airflow, a foam layer is formed on the upper part of the accumulated water, the density of the foam layer is low, the foam layer can be continuously extracted to the ground, the liquid below the foam layer can be continuously lifted and is supplemented into the foam layer until all accumulated water at the bottom of the gas well is foamed and extracted to the ground, the problem of bottom accumulated liquid blockage of the gas well is relieved, and the natural gas recovery efficiency is recovered to be normal. And (4) until the foam discharging agent is completely consumed, accumulating liquid at the bottom of the well again, and when the accumulated liquid reaches a certain degree and the natural gas yield is seriously influenced, re-injecting the foam discharging agent, and circulating the steps.
The foam drainage gas production method is the most used drainage gas production method in China at present, and has the advantages of simple equipment, convenience in field construction, remarkable effect and the like, and most importantly, the normal work of a gas well is not interfered, so that the foam drainage method is generally applied in the world as the most main drainage gas production technology. The foam discharging agent comprises a liquid foam discharging agent and a solid foam discharging agent, the liquid foam discharging agent can be injected by means of a plunger pump, a foam discharging vehicle and the like, but the solid foam discharging agent also needs to be manually injected at a wellhead of a gas well. Therefore, the timely and quantitative filling of the solid foam discharging agent can be seriously influenced in severe weather such as snow and rain, and once the filling amount of the foam discharging agent does not meet the requirement, the gas production efficiency of the gas well can be seriously reduced.
Disclosure of Invention
The invention aims to provide a foam discharging agent feeding device suitable for various natural gas wells, and the foam discharging agent feeding device is used for solving the problem that the gas production efficiency of the gas well is seriously reduced due to the fact that the foam discharging agent filling amount provided in the background technology is not enough.
In order to achieve the purpose, the invention provides the following technical scheme:
a foam discharging agent feeding device suitable for various natural gas wells comprises a medicine storage barrel for storing foam discharging agents, an intermediate pipeline for feeding the foam discharging agents and a blanking pipeline for guiding the foam discharging agents in the medicine storage barrel into the intermediate pipeline, wherein a dosing assembly is arranged in the blanking pipeline and comprises a dosing pulling wheel rotatably arranged in the blanking pipeline, and at least one pulling wheel notch is formed in the dosing pulling wheel; the lower extreme of middle pipeline installs the master control valve, the discharge gate of master control valve passes through well head flange and natural gas well intercommunication, the master control valve is including the casing of seting up the cavity, rotate and install in the inside case of cavity and control the rotatory handle of case, the upper end and the middle passageway intercommunication of cavity, the lower extreme and the natural gas well intercommunication of cavity control case are rotatory through the handle to make the case switch on the cavity, thereby make the bubble that falls into the inside of middle passageway arrange the agent and throw into in the natural gas well behind the cavity.
As a further scheme of the invention: one end of the blanking pipeline is communicated with the medicine storage barrel, and the other end of the blanking pipeline is communicated with the middle pipeline.
As a still further scheme of the invention: the novel medicine injection valve is characterized in that the valve core is of a spherical structure, a medicine filling port is formed in the valve core, a connector is formed in one side of the valve core, a rotating port is formed in the other side of the valve core, the valve core is rotatably installed inside the shell through the rotating port, the valve core is connected with the handle through the connector, and the connector is polygonal so that the handle can drive the valve core to rotate when rotating.
As a still further scheme of the invention: the medicine loading opening is of a groove-shaped structure.
As a still further scheme of the invention: the medicine loading opening is of a through groove structure.
As a still further scheme of the invention: the upper end of middle passageway is provided with the piston pipe, the piston pipe with middle passageway intercommunication, and the internally mounted of piston pipe has piston assembly, piston assembly includes slidable mounting and the inside rack of piston pipe and the gear that rotates the setting, the gear with rack toothing, the lower extreme fixed mounting of rack has the piston.
As a still further scheme of the invention: still including the connecting tube, the one end of connecting tube with the lower part intercommunication of intermediate channel, the other end of connecting tube and the discharge gate intercommunication of main control valve are provided with the balanced valve on the connecting tube, the balanced valve is used for balancing intermediate channel and the pressure of natural gas well head or storage bucket, makes solid bubble arrange the agent and can fall into the intermediate channel from the storage bucket smoothly under the influence of self gravity, falls to the gas well inside from the intermediate channel again.
As a still further scheme of the invention: the medicine storage barrel comprises a barrel body and a rotating shaft which is installed inside the barrel body in a rotating mode, a plurality of medicine filling pipes are arranged in the barrel body in the circumferential direction, the medicine filling pipes are fixedly connected with the rotating shaft through connecting pieces, a feed inlet is formed in the upper portion of the barrel body, a feed opening is formed in the lower portion of the barrel body, the shapes of the feed inlet, the feed opening and the medicine filling pipes are the same, the control rotating shaft is rotated, so that the medicine filling pipes are communicated with the feed inlet, a foam discharging agent is filled into the medicine filling pipes, the control rotating shaft is rotated continuously, and when the medicine filling pipes filled with the foam discharging agent are communicated with the feed opening, the foam discharging agent enters a discharging channel along the feed opening.
As a still further scheme of the invention: the bottom of storage bucket still is provided with control the rotatory ratchet of pivot, as shown in the figure, ratchet includes the mounting bracket of being connected with storage bucket, the one end of pivot is stretched out storage bucket and is rotated with the mounting bracket and be connected, and the one end fixed mounting that storage bucket was stretched out in the pivot has the ratchet, install at least one pawl that prevents the reverse pivoted of ratchet on the mounting bracket.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the feeding dial wheel can accurately control the feeding amount of the solid medicaments, the dial wheel rotates for one circle to represent that the medicament storage device feeds a solid foam drainage medicament to the middle channel at most, and the feeding amount is controlled by controlling the rotation number of the feeding impeller when the medicament is fed, so that the feeding amount of the foam drainage medicament is more accurate, the feeding amount of the foam drainage medicament meets the feeding requirement, and the gas production efficiency of a natural gas well is improved.
Drawings
Fig. 1 is a schematic structural diagram of a foam discharging agent feeding device suitable for various natural gas wells.
Fig. 2 is a cross-sectional view of a foam displacement agent delivery device for a variety of gas wells.
Fig. 3 is a schematic structural diagram of a medicine storage barrel in the foam discharging agent feeding device applicable to various natural gas wells.
Fig. 4 is a schematic structural diagram of a ratchet mechanism in a foam discharging agent feeding device suitable for various natural gas wells.
Fig. 5 is a perspective view of a valve core in the foam discharging agent feeding device applicable to various natural gas wells.
Fig. 6 is a schematic structural diagram of a valve core in the foam discharging agent feeding device suitable for various natural gas wells.
Fig. 7 is another structural schematic diagram of a valve core in the foam discharging agent feeding device suitable for various natural gas wells.
In the figure: 1-piston tube, 2-medicine storage barrel, 21-medicine charging tube, 22-connecting piece, 23-rotating shaft, 24-ratchet wheel, 25-mounting rack, 26-pawl, 3-blanking pipeline, 31-medicine feeding drawing wheel, 32-drawing wheel notch, 4-main control valve, 41-shell, 42-valve core, 421-medicine charging port, 422-connecting port, 423-rotating port, 43-handle, 5-balance valve, 6-well connecting flange, 7-piston component, 71-gear, 72-rack and 73-piston.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The foam drainage gas production method is the most used drainage gas production method in China at present, and has the advantages of simple equipment, convenient field construction, obvious effect and the like, and most importantly, the foam drainage gas production method does not interfere the normal work of a gas well, so the foam drainage gas production method is generally applied in the world as the most main drainage gas production technology [5]. The foam discharging agent comprises a liquid foam discharging agent and a solid foam discharging agent, the liquid foam discharging agent can be injected by means of a plunger pump, a foam discharging vehicle and the like, but the solid foam discharging agent also needs to be manually injected at a wellhead of a gas well. Therefore, in severe weather such as snow and rain, the timely and quantitative filling of the solid foam discharging agent can be seriously influenced, and once the filling amount of the foam discharging agent does not meet the requirement, the gas production efficiency of the gas well can be seriously reduced.
Based on this, the embodiment of the invention provides a foam discharging agent feeding device suitable for various natural gas wells, as shown in fig. 1-4, which is used for feeding a foam discharging agent into a natural gas well and comprises a medicine storage barrel 2 used for storing the foam discharging agent, an intermediate pipeline used for feeding the foam discharging agent and a discharging pipeline 3 used for guiding the foam discharging agent in the medicine storage barrel 2 into the intermediate pipeline, wherein one end of the discharging pipeline 3 is communicated with the medicine storage barrel 2, the other end of the discharging pipeline 3 is communicated with the intermediate pipeline, as shown in fig. 1-2, in order to enable the foam discharging agent to automatically slide into the intermediate pipeline under the action of gravity, the upper end of the discharging pipeline 3 is communicated with the medicine storage barrel 2, and the lower end of the discharging pipeline 3 is communicated with the intermediate pipeline;
after being discharged from a medicine outlet of the medicine storage barrel 2, the foam discharging agent falls into the intermediate channel along the blanking pipeline 3, in order to avoid the problems that the solid medicines in the medicine storage barrel 2 all fall into the intermediate channel at one time, which may cause insufficient space and cause blockage of the device, and the like, and affect the normal administration of the solid medicines of the device, a medicine administration assembly is arranged in the blanking pipeline 3, the medicine administration assembly comprises a medicine administration pulling wheel 32 rotatably arranged in the blanking pipeline 3, at least one pulling wheel notch 32 is arranged on the medicine administration pulling wheel 32, it can be understood that the diameter of the pulling wheel notch 32 is the same as that of the blanking pipeline 3, and the size of the pulling wheel notch 32 is larger than or equal to that of the foam discharging agent, the medicine administration pulling wheel 32 is controlled to rotate, when the pulling wheel notch 32 is communicated with the upper section of the blanking pipeline 3, the foam discharging agent slides into the pulling wheel notch 32 along the blanking pipeline 3, and when the pulling wheel notch 32 is communicated with the lower section of the blanking pipeline 3, the foam discharging agent slides out of the pulling wheel notch 32 and enters the intermediate pipeline;
furthermore, in the embodiment of the present invention, the wheel notch 32 is suitable for application of spherical solid foam discharging agents, and it is impossible to control the feeding of the rod-shaped foam discharging agents, and if the design size of the spherical solid foam discharging agents is 30 × 30mm, in order to prevent the pipeline from being blocked due to errors such as irregular shape of the spherical solid foam discharging agents, the channel should be set to be relatively large, the inner diameter of the charging pipe and the inner diameter of the inclined pipeline are both set to be 35mm, so the inner diameter of the notch of the administration dial wheel is also set to be 35mm, the notch has a section designed to just accommodate a standard circular solid object with a size of 35 × 35mm, and the medicine receiving notch with the size is designed to only accommodate one football-shaped solid medicine, and cannot be blocked due to the extrusion of a plurality of football-shaped solid medicines.
In the embodiment of the invention, the lower end of the intermediate pipeline is provided with a main control valve 4, a discharge hole of the main control valve 4 is communicated with the natural gas well through a wellhead connecting flange 6, the main control valve 4 comprises a shell 41 provided with a cavity, a valve core 42 rotationally installed in the cavity and a handle 43 for controlling the valve core 42 to rotate, the upper end of the cavity is communicated with the intermediate channel, the lower end of the cavity is communicated with the natural gas well, the valve core 42 is controlled to rotate through the handle 43 so as to enable the valve core 42 to be communicated with the cavity, and therefore the foam discharging agent falling into the intermediate channel is thrown into the natural gas well after passing through the cavity;
referring to fig. 5 to 7, the valve core 42 is a spherical structure, a loading port 421 is opened in the valve core 42, in an embodiment, the loading port 421 is a groove-shaped structure, as shown in fig. 6, the valve core 42 is designed as a one-way sealed ball valve core, the valve core 42 of the main control valve 4 is set to have an initial state of opening upward, when a solid foam discharging agent falls from a middle channel, the solid foam discharging agent falls into a cavity of the valve core 42, the designed size of the cavity is consistent with the size of the middle channel, the inner diameter is 40mm, the depth is 65mm, two solid foam discharging balls can be loaded at the same time under normal conditions, when the solid foam discharging agent needs to be loaded, the valve core of the main control valve is controlled to rotate 180 degrees, the opening of the cavity of the valve core is changed from being aligned with the middle channel at the upper part to being aligned with the ball falling channel, and at this time, the solid foam discharging agent in the cavity of the valve core falls into a natural gas well through a well head connecting flange under the action of its own gravity;
in another embodiment, the loading port 421 is a through-slot structure, as shown in fig. 7, the valve core 42 is a straight-through valve core, so that the solid foam discharging agent can directly fall down after the main control valve 4 is opened, and does not stay in the valve core 42 of the main control valve, and at this time, the main valve core only needs to rotate within 90 degrees, and the efficiency is higher;
further, in the embodiment of the present invention, as shown in fig. 5, a connection port 422 is formed at one side of the valve body 42, a rotation port 423 is formed at the other side of the valve body 42, the valve body 42 is rotatably installed inside the housing 41 through the rotation port 423, the valve body 42 is connected to the handle 43 through the connection port 422, and the connection port 422 has a polygonal shape so that the handle 43 can rotate to drive the valve body 42 to rotate.
In the embodiment of the invention, a piston tube 1 is arranged at the upper end of the intermediate passage, the piston tube 1 is communicated with the intermediate passage, a piston assembly 7 is arranged in the piston tube 1, the piston assembly 7 comprises a rack 72 which is arranged in the piston tube 1 in a sliding manner and a gear 71 which is arranged in a rotating manner, the gear 71 is meshed with the rack 72, a piston 73 is fixedly arranged at the lower end of the rack 72, the gear 71 is controlled to rotate, the rack 72 and the piston 73 are driven to slide up and down in the piston tube 1, and the air pressure of the intermediate passage is adjusted, so that the solid foam discharging agent can also fall freely under the wellhead pressure condition.
In the embodiment of the invention, the gas well further comprises a connecting pipeline, one end of the connecting pipeline is communicated with the lower part of the middle channel, the other end of the connecting pipeline is communicated with a discharge hole of the main control valve 4, a balance valve 5 is arranged on the connecting pipeline, and the balance valve 5 is used for balancing the pressure between the middle channel and a natural gas well mouth or a medicine storage barrel 2, so that the solid foam discharging agent can smoothly fall into the middle channel from the medicine storage barrel 2 under the influence of self gravity and then fall into the gas well from the middle channel.
In addition, in the embodiment of the invention, the medicine storage barrel 2 comprises a barrel body and a rotating shaft 23 rotatably installed in the barrel body, a plurality of medicine loading pipes 21 are circumferentially arranged in the barrel body, the medicine loading pipes 21 are fixedly connected with the rotating shaft 23 through connecting pieces, a feed inlet is formed in the upper part of the barrel body, a discharge outlet is formed in the lower part of the barrel body, the shapes of the feed inlet, the discharge outlet and the medicine loading pipes 21 are the same, the rotating shaft 23 is controlled to rotate so as to enable the medicine loading pipes 21 to be communicated with the feed inlet, so that a foam discharging agent is loaded into the medicine loading pipes 21, the rotating shaft 23 is continuously controlled to rotate, and when the medicine loading pipes 21 loaded with the foam discharging agent are communicated with the discharge outlet, the foam discharging agent enters the discharge channel 3 along the discharge outlet;
further, the bottom of the medicine storage barrel 2 is further provided with a ratchet mechanism for controlling the rotation of the rotating shaft 23, as shown in fig. 4, the ratchet mechanism comprises an installation frame 25 connected with the medicine storage barrel 2, one end of the rotating shaft 23 extends out of the medicine storage barrel 2 and is rotatably connected with the installation frame 25, one end of the rotating shaft 23 extending out of the medicine storage barrel 2 is fixedly provided with a ratchet 24, and the installation frame 25 is provided with at least one pawl 26 for preventing the ratchet 24 from reversely rotating;
in addition, in the embodiment of the present invention, 12 medicine loading tubes 21 are provided, and 12 teeth are provided for the ratchet teeth, which are equal to the number of the medicine loading tubes.
According to the invention, the feeding dial wheel can accurately control the feeding amount of the solid medicaments, the dial wheel rotates for one circle to represent that the medicament storage device feeds a solid foam drainage medicament to the middle channel at most, and the feeding amount is controlled by controlling the rotation number of the feeding impeller when the medicament is fed, so that the feeding amount of the foam drainage medicament is more accurate, the feeding amount of the foam drainage medicament meets the feeding requirement, and the gas production efficiency of a natural gas well is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The foam discharging agent feeding device suitable for multiple natural gas wells is characterized by comprising a medicine storage barrel (2) for storing foam discharging agents, an intermediate pipeline for feeding the foam discharging agents and a feeding pipeline (3) for guiding the foam discharging agents in the medicine storage barrel (2) into the intermediate pipeline, wherein a feeding assembly is arranged in the feeding pipeline (3) and comprises a feeding pulling wheel (32) rotatably arranged in the feeding pipeline (3), and at least one pulling wheel notch (32) is formed in the feeding pulling wheel (32); main control valve (4) are installed to the lower extreme of middle pipeline, the discharge gate of main control valve (4) passes through well head flange (6) and natural gas well intercommunication, main control valve (4) are including casing (41), the rotation of seting up the cavity and install in inside case (42) of cavity and control case (42) rotatory handle (43), the upper end and the intermediate channel intercommunication of cavity, the lower extreme and the natural gas well intercommunication of cavity control case (42) are rotatory through handle (43) to make case (42) switch on the cavity, thereby make the bubble that falls into intermediate channel inside arrange the agent and throw into in the natural gas well behind the cavity.
2. The foam discharging agent feeding device applicable to various natural gas wells as claimed in claim 1, wherein one end of the discharging pipeline (3) is communicated with the chemical storage barrel (2), and the other end of the discharging pipeline (3) is communicated with the intermediate pipeline.
3. The foam discharging agent feeding device suitable for various natural gas wells is characterized in that the valve core (42) is of a spherical structure, a medicine filling port (421) is formed in the valve core (42), a connecting port (422) is formed in one side of the valve core (42), a rotating port (423) is formed in the other side of the valve core (42), the valve core (42) is rotatably installed inside the shell (41) through the rotating port (423), the valve core (42) is connected with the handle (43) through the connecting port (422), and the connecting port (422) is of a polygonal shape so that the valve core (42) can be driven to rotate when the handle (43) rotates.
4. The foam discharging agent feeding device for various natural gas wells as recited in claim 3, wherein the charging opening (421) is of a groove-shaped structure.
5. The foam discharging agent feeding device for various natural gas wells as recited in claim 3, wherein the charging port (421) is a through groove structure.
6. The foam discharging agent feeding device for various natural gas wells is characterized in that a piston pipe (1) is arranged at the upper end of the middle passage, the piston pipe (1) is communicated with the middle passage, a piston assembly (7) is arranged inside the piston pipe (1), the piston assembly (7) comprises a rack (72) which is slidably arranged inside the piston pipe (1) and a gear (71) which is rotatably arranged, the gear (71) is meshed with the rack (72), and a piston (73) is fixedly arranged at the lower end of the rack (72).
7. The foam discharging agent throwing device suitable for various natural gas wells is characterized by further comprising a connecting pipeline, one end of the connecting pipeline is communicated with the lower portion of the middle channel, the other end of the connecting pipeline is communicated with a discharging hole of the main control valve (4), and a balance valve (5) is arranged on the connecting pipeline.
8. The foam discharging agent feeding device suitable for various natural gas wells as defined in claim 1, wherein the medicine storage barrel (2) comprises a barrel body and a rotating shaft (23) rotatably mounted inside the barrel body, a plurality of medicine charging pipes (21) are circumferentially arranged inside the barrel body, the medicine charging pipes (21) are fixedly connected with the rotating shaft (23) through a connecting piece, a feeding hole is formed in the upper portion of the barrel body, a discharging hole is formed in the lower portion of the barrel body, and the feeding hole, the discharging hole and the medicine charging pipes (21) are identical in shape.
9. The foam discharging agent feeding device applicable to various natural gas wells is characterized in that a ratchet mechanism for controlling the rotation of the rotating shaft (23) is further arranged at the bottom of the medicine storage barrel (2), as shown in fig. 4, the ratchet mechanism comprises a mounting frame (25) connected with the medicine storage barrel (2), one end of the rotating shaft (23) extends out of the medicine storage barrel (2) and is rotatably connected with the mounting frame (25), a ratchet wheel (24) is fixedly mounted at one end of the rotating shaft (23) extending out of the medicine storage barrel (2), and at least one pawl (26) for preventing the ratchet wheel (24) from reversely rotating is mounted on the mounting frame (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210729381.1A CN115163010A (en) | 2022-06-24 | 2022-06-24 | Foam discharging agent feeding device suitable for various natural gas wells |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210729381.1A CN115163010A (en) | 2022-06-24 | 2022-06-24 | Foam discharging agent feeding device suitable for various natural gas wells |
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| CN115163010A true CN115163010A (en) | 2022-10-11 |
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| CN202210729381.1A Pending CN115163010A (en) | 2022-06-24 | 2022-06-24 | Foam discharging agent feeding device suitable for various natural gas wells |
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| CN202954801U (en) * | 2012-11-16 | 2013-05-29 | 中国石油天然气股份有限公司 | Piston gas well automatic foaming drainage ball throwing device |
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Application publication date: 20221011 |