CN117905417A - Movable adjustable power-supply-free automatic dosing device for oil-gas well and pipeline and dosing method thereof - Google Patents
Movable adjustable power-supply-free automatic dosing device for oil-gas well and pipeline and dosing method thereof Download PDFInfo
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- CN117905417A CN117905417A CN202410316085.8A CN202410316085A CN117905417A CN 117905417 A CN117905417 A CN 117905417A CN 202410316085 A CN202410316085 A CN 202410316085A CN 117905417 A CN117905417 A CN 117905417A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000003814 drug Substances 0.000 claims abstract description 266
- 229940079593 drug Drugs 0.000 claims description 82
- 239000007788 liquid Substances 0.000 claims description 7
- 210000003437 trachea Anatomy 0.000 claims 1
- 239000003129 oil well Substances 0.000 abstract description 8
- 239000012188 paraffin wax Substances 0.000 abstract description 7
- 239000003208 petroleum Substances 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 2
- 239000008141 laxative Substances 0.000 abstract 1
- 230000002475 laxative effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 14
- 238000012377 drug delivery Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000001993 wax Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000012840 feeding operation Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/06—Methods or apparatus for cleaning boreholes or wells using chemical means for preventing or limiting, e.g. eliminating, the deposition of paraffins or like substances
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- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention discloses a movable and adjustable automatic dosing device for an oil-gas well and a pipeline without power supply and a dosing method thereof, relates to the technical field of petroleum exploitation, and aims to solve the problem that the dosing mode of the traditional dosing paraffin removal device is inconvenient to produce and use. The device includes travelling car and medicine storage tank, still includes quick-operation joint and quick dosing system, travelling car upper end is fixedly provided with medicine storage tank, medicine storage tank upper end is provided with the charge mouth by the middle part, medicine storage tank bottom is fixedly provided with the blowdown flange, can dismantle between flange and the blowdown flange down on the blowdown, the blowdown flange is provided with the medicine outlet by the middle part down, the fixed medicine outlet pipe that is provided with of medicine outlet inner wall, quick-operation joint is provided with row's medicine mouth and return air mouth, and this medicine adding device has got rid of traditional medicine adding process and relies on the electric pump to constantly energize just can be to the defect of laxative in the oil well, has improved this medicine adding device's application scope effectively to can obviously improve the speed in the medicament flow direction well, saved the medicine adding time.
Description
Technical Field
The invention relates to the technical field of petroleum exploitation, in particular to a movable and adjustable automatic dosing device for an oil-gas well and a pipeline without power supply and a dosing method thereof.
Background
In the petroleum exploitation process, wax deposition is a common problem, the wax deposition not only can block an oil well and reduce the yield of the oil well, but also can increase the maintenance cost of the oil well, in order to solve the problem, the chemical agent is added into the oil well to reduce the deposition rate of the wax, thereby achieving the purposes of prolonging the service life of the oil well and improving the yield.
The patent with the prior authorized bulletin number of CN216665568U discloses a novel high-pressure continuous dosing device for paraffin removal agent, which comprises a fixed seat, wherein the upper surface of the fixed seat is provided with a device main body, a box body and a compression plunger pump main body, the upper surface of the device main body is provided with a mounting ring, the inside of the mounting ring is provided with a feeding hopper, the end part of the device main body is provided with a connecting outlet, the two sides of the box body are respectively provided with an inlet pipe body and an outlet pipe body, and the end part of the outlet pipe body is fixedly arranged with one side of the compression plunger pump main body; through design spring and connecting plate at the lower surface of fixing base, can be when the device motion, take place elastic deformation's effect through the spring and push down the connecting plate, make the buffer rod take place certain gradient through the connecting pin when the connecting plate pushes down for the second slider slides in the inside of second spout, and the device can stabilize the buffering, easily shock attenuation makes the operation more stable.
However, the chemical adding device of the petroleum casing is similar to the chemical adding mode of the traditional chemical adding paraffin removal device, and the petroleum casing is powered on to pump into an oil well by an electric pump, so that the electric pump is easy to break, and is difficult to maintain and waste in electricity, and the chemical adding device is inconvenient to produce and use.
Therefore, the scheme can not meet the existing requirements, and the invention provides a movable adjustable power-free automatic dosing device for an oil-gas well and a pipeline and a dosing method thereof.
Disclosure of Invention
The invention aims to provide a movable and adjustable automatic dosing device for an oil-gas well and a pipeline without power supply and a dosing method thereof, so as to solve the problem that the dosing mode of the traditional dosing paraffin removal device provided in the background art is inconvenient to produce and use.
In order to achieve the above purpose, the present invention provides the following technical solutions: the automatic dosing device comprises a mobile trolley and a drug storage tank, and further comprises a quick connector and a quick dosing system, wherein the drug storage tank is fixedly arranged at the upper end of the mobile trolley, a dosing port is arranged near the middle part of the upper end of the drug storage tank, a blowdown upper flange is fixedly arranged at the bottom of the drug storage tank, the blowdown upper flange and a blowdown lower flange are detachably connected, a drug outlet is arranged near the middle part of the blowdown lower flange, a drug outlet pipe is fixedly arranged on the inner wall of the drug outlet pipe, the quick connector is provided with a drug outlet and a gas return port, the drug outlet port only allows drugs to flow into the well, the gas return port only allows the gas in the well to enter the drug storage tank, one end of the drug outlet pipe, which is far away from the blowdown lower flange, is fixedly connected with the drug outlet pipe, one end of the gas return pipe, which is far away from the quick connector, penetrates through the top of the drug storage tank and stretches into the inside of the drug storage tank, is provided with a flow control valve, the drug outlet control valve is used for controlling the flow of the drug outlet pipe to flow out of the drug storage tank, and the pressure of the drug outlet pipe is regulated by the pressure balance valve in the pressure of the drug storage tank;
The quick dosing system includes fixed cover, fixed plate and screw mechanism, fixed cover upper end array is fixed to be provided with four fixed columns, four the fixed column is all fixed respectively to be set up on the inner wall of medicine storage tank, can dismantle the setting between fixed plate and the inner wall of fixed cover, screw mechanism includes motor and rotary device, the motor is located between fixed plate and the fixed cover to fixed the upper end that sets up at the fixed plate, the output of motor is fixed to be provided with rotary device, rotary device passes the fixed plate and stretches into the bottom of medicine storage tank.
Further, the quick dosing system still includes and prevents rocking the board, prevent rocking the board and be located between fixed plate and the rotary device to slide along rotary device's axis and set up, prevent rocking the board and be used for reinforcing medicament stationarity, prevent that the medicament liquid level from rocking the range too big.
Further, a magnetic flap level gauge is further arranged on the medicine storage tank and is used for detecting the height of the liquid level of the medicine in the medicine storage tank.
Further, the upper end of the medicine storage tank is also provided with a pressure gauge, and the pressure gauge is used for detecting whether the pressure in the medicine storage tank reaches an equilibrium state.
Further, one side of the medicine storage tank, which is far away from the muffler, is provided with an exhaust pipe, the exhaust pipe is used for exhausting gas in the medicine storage tank, and an exhaust valve is arranged on the exhaust pipe.
Further, a protection pipe is arranged on one side, close to the exhaust pipe, of the medicine storage tank, a safety valve is arranged on the protection pipe, a dangerous threshold value and a safe threshold value are arranged in the safety valve, the safe threshold value is lower than the dangerous threshold value, when the pressure in the medicine storage tank exceeds the dangerous threshold value preset in the safety valve, the safety valve is opened, redundant gas in the medicine storage tank is discharged from the protection pipe, and the safety valve is closed until the pressure in the medicine storage tank is controlled below the safe threshold value preset in the safety valve.
The automatic dosing method for the movable adjustable power-free oil-gas well and the pipeline comprises the following steps:
step one: adding a medicament into the medicament storage tank: firstly, closing a flow control valve and a back pressure valve, and then adding the medicament into the medicament storage tank through a medicament adding port;
step two: pre-dosing assembly into a well: firstly, fixedly connecting a medicine discharging port and an air returning port on the quick connector with a medicine discharging pipe and an air returning pipe respectively, and then fixedly connecting the quick connector with a pipeline in a well;
step three: after the air pressure balance is adjusted, adding medicine: opening a back pressure valve, then adjusting a flow control valve to set dosing flow, continuously allowing gas in the well to enter a medicine storage tank through a gas return pipe, and when the gas pressure in the medicine storage tank is the same as the gas pressure in the well, reaching a gas pressure balance state, and continuously allowing the medicine to flow into the well through a medicine outlet pipe;
step four: the dosing process is ended: the flow control valve monitors the flow of the medicament flowing into the well from the medicament storage tank in real time, and after the flow of the medicament reaches the set medicament adding flow, the flow control valve is closed to stop continuing medicament adding;
step five: and (3) finishing: the back pressure valve is closed first, then the exhaust valve is opened, and the air pressure in the medicine storage tank is regulated to be the same as the atmospheric pressure.
Further, during the execution of the third step, the quick dosing system is started, and the rotating device drives the medicament in the medicament storage tank to rotate, so that the medicament inflow speed in the medicament storage tank into the well is increased, and the medicament dosing time is shortened.
Compared with the prior art, the invention has the following remarkable effects:
1. The invention discloses a movable and adjustable automatic medicine feeding device without power supply for an oil-gas well and a pipeline and a medicine feeding method thereof, wherein a medicine outlet pipe and an air return pipe are arranged, the medicine outlet pipe and the air return pipe are respectively and fixedly connected with a medicine outlet and an air return port through a quick connector, then the other end of the quick connector is fixedly connected with a pipeline in the well, gas in the well continuously enters a medicine storage tank through the air return pipe until the gas pressure in the medicine storage tank is the same as the gas pressure in the well, after the gas pressure reaches an air pressure balance state, medicine starts to flow into the well from the medicine outlet pipe independently, the flow rate of the medicine in the medicine storage tank flowing into the well is accurately controlled through a flow control valve, the defect that the medicine can be fed into the oil well only by continuously powering on an electric pump in the traditional medicine feeding process is overcome, and the application range of the medicine feeding device is effectively improved.
2. The invention discloses a movable and adjustable automatic medicine feeding device without power supply for an oil-gas well and a pipeline and a medicine feeding method thereof.
Drawings
FIG. 1 is an axial view of a mobile, tunable power-free automatic drug delivery device of the present invention;
FIG. 2 is a front view of the mobile, adjustable, power-free automatic medicine feeding device of the present invention;
FIG. 3 is a left side view of the mobile, adjustable, power-free automatic medicine feeding device of the present invention;
FIG. 4 is a rear view of the mobile power-free automatic medicine feeding device of the present invention;
FIG. 5 is an axial view of the rapid drug delivery system of the present invention;
FIG. 6 is a bottom view of the rapid drug delivery system of the present invention;
FIG. 7 is a schematic view of the structure of the retaining cap of the present invention;
fig. 8 is a schematic structural view of the screw mechanism of the present invention.
In the figure: 1. a moving trolley; 2. a drug storage tank; 3. a quick connector; 4. a rapid drug adding system; 5. a medicine adding port; 6. a sewage discharge upper flange; 7. a sewage discharge lower flange; 8. a medicine outlet; 9. a medicine outlet pipe; 10. a drug discharge port; 11. an air return port; 12. an air return pipe; 13. a flow control valve; 14. a back pressure valve; 15. a fixed cover; 16. a fixing plate; 17. a screw mechanism; 18. fixing the column; 19. a motor; 20. a rotating device; 21. an anti-shake plate; 22. a magnetic flap level gauge; 23. a pressure gauge; 24. an exhaust pipe; 25. an exhaust valve; 26. a protective tube; 27. a safety valve.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-8, the present invention provides the following embodiments:
example 1
Referring to fig. 1-4, the embodiment provides a mobile adjustable power-free oil-gas well and automatic drug feeding device for a pipeline, which comprises a mobile trolley 1 and a drug storage tank 2, and further comprises a quick connector 3 and a quick drug feeding system 4, wherein the upper end of the mobile trolley 1 is fixedly provided with the drug storage tank 2, the drug storage tank 2 is arranged on the mobile trolley 1, the drug storage tank 2 is more convenient to move, the drug feeding device is convenient to install, the drug storage tank 2 is suitable for various terrains, the upper end of the drug storage tank 2 is provided with a drug feeding port 5 near the middle part, the drug feeding port 5 is kept in a sealed state when the drug is fed into a well, the drug feeding port 5 is opened when the drug feeding into the drug storage tank 2 is required, the drug feeding port 5 is closed when the drug feeding into the drug storage tank 2 is finished, a drain upper flange 6 is fixedly arranged at the bottom of the drug storage tank 2, and is detachably connected with a drain lower flange 7, impurities are accumulated gradually in the drug storage tank 2 after the drug storage tank 2 is used for a longer time, therefore, the drug storage tank 2 is required to be cleaned up at regular time, the drug storage tank 2 is separated from the upper flange 6 and the drain port 10 is further provided with a drug discharge port 10, and the drug is further provided with a drug discharge port 10 through the filter screen 10, and a drug discharge port 10 is further arranged at the bottom of the drug storage tank 2, and a filter screen 10 is provided with a quick connector, and a drug discharge port is further provided with a drug discharge port 10, and a drug discharge port is provided with a drug port 10, and a drug discharge port is provided at the bottom port and is provided with a drug port and a drug port 3; the air return port 11 is internally provided with an air one-way valve, so that the air return port 11 only allows the gas in the well to enter the medicine storage tank 2, the air return port 11 arranged on the quick connector 3 allows the gas in the well to enter the medicine storage tank 2, and simultaneously prevents the gas in the medicine storage tank 2 from entering the well, thereby accelerating the process that the air pressure in the medicine storage tank 2 and the air pressure in the well reach an air pressure balance state, one end of the medicine outlet pipe 9 away from the sewage discharging lower flange 7 is fixedly connected with the medicine outlet 10, the air return port 11 is fixedly connected with an air return pipe 12, one end of the air return pipe 12 away from the quick connector 3 penetrates through the top of the medicine storage tank 2 and stretches into the inside of the medicine storage tank 2, the medicine outlet pipe 9 is provided with a flow control valve 13, the flow control valve 13 is used for controlling the medicine flow rate of the medicine flowing out from the medicine storage tank 2 through the medicine outlet pipe 9, the chemical adding amount in the well can be accurately controlled through the flow control valve 13, after the chemical flow reaches the set chemical adding flow, the flow control valve 13 is closed, so that the paraffin removal effect of the fixed chemical amount is more visual, workers can adjust the pre-added chemical flow according to the paraffin removal effect, the paraffin removal success rate is effectively improved, the return air pipe 12 is provided with the return pressure valve 14, the return pressure valve 14 is used for adjusting the pressure in the chemical storage tank 2 to keep a balanced state with the pressure in the well, the return pressure valve 14 needs to be opened before chemical adding in the well, the air pressure in the well is higher, and the air in the well continuously enters the chemical storage tank 2 through the return air port 11 until the air pressure in the chemical storage tank 2 is kept the same as the air pressure in the well, so that the chemical can flow into the well independently.
The medicine storage tank 2 is further provided with a magnetic flap liquid level meter 22, the magnetic flap liquid level meter 22 is used for detecting the height of the medicine liquid level in the medicine storage tank 2, the medicine amount in the medicine storage tank 2 can be displayed in real time, workers can supplement the medicine in the medicine storage tank 2 in time, the upper end of the medicine storage tank 2 is further provided with a pressure meter 23, the pressure meter 23 is used for detecting whether the pressure in the medicine storage tank 2 reaches an equilibrium state, when a pointer of the pressure meter 23 is not deviated any more, the air pressure in the medicine storage tank 2 is indicated to be the same as the air pressure in a well, at the moment, the medicine feeding operation in the well can be carried out, the air exhaust pipe 24 is arranged on one side, far away from the air return pipe 12, of the medicine storage tank 2, the air exhaust pipe 24 is used for exhausting the air in the medicine storage tank 2, the air exhaust pipe 24 is provided with an air exhaust valve 25, when the flow of the medicine in the medicine storage tank 2 reaches a set value, the air flow control valve 13 is closed, the medicine feeding operation is finished, the air return valve 14 is opened, the air exhaust valve 25 starts to discharge the air in the medicine storage tank 2 when the pointer of the pressure meter 23 is indicated to be 0, and the air pressure in the air pressure is indicated to be the same as the air pressure in the air pressure after the air pressure is the air.
The protection tube 26 is arranged on one side, close to the exhaust tube 24, of the medicine storage tank 2, the safety valve 27 is arranged on the protection tube 26, the dangerous threshold and the safe threshold are configured in the safety valve 27, the safe threshold is lower than the dangerous threshold, when the pressure in the medicine storage tank 2 exceeds the dangerous threshold preset in the safety valve 27, the safety valve 27 is opened, redundant gas in the medicine storage tank 2 is discharged from the protection tube 26 until the pressure in the medicine storage tank 2 is controlled below the safe threshold preset in the safety valve 27, the safety valve 27 is closed, the medicine adding device is in practical application, the pressure in a well can be excessively high, the back pressure valve 14 is opened to continuously discharge the gas in the well into the medicine storage tank 2, the situation that an explosion accident occurs is likely to happen due to the excessively high pressure in the medicine storage tank 2, the safety valve 27 is opened at the moment, the gas in the medicine storage tank 2 can be discharged in time, the medicine storage tank 2 can be rapidly reduced, the gas in the medicine storage tank 2 can be effectively reduced until the pressure in the medicine storage tank 2 is controlled below the safe threshold, the pressure in the well is not completely balanced, the pressure in the well can not be always reduced, and the pressure in the well can be constantly kept, and the pressure in the well can not be balanced, the medicine storage tank 2 is not completely, and the pressure in the dangerous situation is not reduced, and the pressure is not always is kept, and the pressure in the medicine can be completely.
Example two
On the basis of the first embodiment, please refer to fig. 1 and fig. 5-8, the rapid drug adding system 4 includes a fixed cover 15, a fixed plate 16 and a spiral mechanism 17, four fixed columns 18 are fixedly arranged at the upper end of the fixed cover 15 in an array, the four fixed columns 18 are fixedly arranged on the inner wall of the drug storage tank 2, the stability of the whole rapid drug adding system 4 is maintained through the four fixed columns 18, the fixed plate 16 and the inner wall of the fixed cover 15 are detachably arranged, the spiral mechanism 17 includes a motor 19 and a rotating device 20, the motor 19 is positioned between the fixed plate 16 and the fixed cover 15 and is fixedly arranged at the upper end of the fixed plate 16, the upper end of the fixed cover 15 is arranged into a curved surface, the drug flows into the bottom of the drug storage tank 2 more conveniently, the motor 19 is protected, the drug is effectively prevented from penetrating into the motor 19, the rotating device 20 is fixedly arranged at the output end of the motor 19, the rotating device 20 penetrates through the fixed plate 16 and is integrated into the bottom end of the drug storage tank 2, the motor 19 is started, the rotating device 20 is driven to rotate, thereby the drug in the drug storage tank 2 is formed, the swirl flow direction can be increased, the significant time can be saved, and the drug adding speed can be prolonged.
The rapid drug delivery system 4 further includes an anti-shaking plate 21, wherein the anti-shaking plate 21 is located between the fixed plate 16 and the rotating device 20 and is slidably disposed along the axis of the rotating device 20, and the anti-shaking plate 21 is used for enhancing the stability of the drug and preventing the shaking amplitude of the drug liquid surface from being too large.
Example III
On the basis of the first embodiment and the second embodiment, referring to fig. 1-8, the automatic dosing method for the mobile adjustable power-free oil-gas well and the pipeline comprises the following steps:
Step one: adding a medicament into the medicament storage tank 2: firstly, closing a flow control valve 13 and a back pressure valve 14, and then adding the medicament into the medicament storage tank 2 through a medicament adding port 5;
Step two: pre-dosing assembly into a well: firstly, a medicine outlet 10 and a return air inlet 11 on a quick connector 3 are respectively and fixedly connected with a medicine outlet pipe 9 and a return air pipe 12, and then the quick connector 3 is fixedly connected with a pipeline in a well;
Step three: after the air pressure balance is adjusted, adding medicine: opening a back pressure valve 14, then regulating a flow control valve 13 to set dosing flow, continuously allowing gas in a well to enter the medicine storage tank 2 through a gas return pipe 12, and when the gas pressure in the medicine storage tank 2 is the same as the gas pressure in the well, reaching a gas pressure balance state, and continuously allowing the medicine to flow into the well through a medicine outlet pipe 9;
Step four: the dosing process is ended: the flow control valve 13 monitors the flow of the medicament flowing into the well from the medicament storage tank 2 in real time, and after the medicament flow reaches the set medicament adding flow, the flow control valve 13 is closed to stop continuing medicament adding;
Step five: and (3) finishing: the back pressure valve 14 is closed first, and then the exhaust valve 25 is opened to adjust the air pressure in the medicine storage tank 2 to be the same as the atmospheric pressure.
During the execution of the third step, the rapid drug adding system 4 is started, and the rotating device 20 drives the drugs in the drug storage tank 2 to rotate, so that the speed of the drugs in the drug storage tank 2 flowing into the well is increased, and the drug adding time is shortened.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, and the division of the system, for example, is merely a logical function division, and there may be additional divisions when actually implemented, and for example, multiple systems or components may be combined or integrated into another system, or some features may be omitted or not performed.
Finally, it should be noted that: the above examples are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, but it should be understood by those skilled in the art that the present invention is not limited thereto, and that the present invention is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. Remove adjustable power supply oil gas well and pipeline automatic medicine feeding device that exempts from, including travelling car (1) and medicine storage jar (2), its characterized in that: still include quick-operation joint (3) and quick dosing system (4), quick-operation joint (1) upper end fixedly provided with medicine storage tank (2), medicine storage tank (2) upper end is provided with medicine adding port (5) by the middle part, medicine storage tank (2) bottom is fixedly provided with blowdown flange (6), can dismantle between blowdown flange (6) and blowdown lower flange (7) and be connected, blowdown lower flange (7) are provided with out medicine mouth (8) by the middle part, medicine outlet (8) inner wall fixed be provided with out medicine pipe (9), quick-operation joint (3) are provided with row medicine mouth (10) and return air mouth (11), medicine outlet (10) only allow medicine inflow in the well, return air mouth (11) only allow in the medicine storage tank (2) of in-well gas entering, the one end that blowdown lower flange (7) were kept away from to go out medicine pipe (9) is connected with medicine outlet (10) fixed, return air mouth (11) fixedly connected with trachea (12), return air mouth (12) are kept away from medicine outlet (3) and are passed through quick-operation joint (3) and are gone out medicine flow control valve (13) in the control tank (13) are gone out medicine flow rate in the control tank (2), a back pressure valve (14) is arranged on the air return pipe (12), and the back pressure valve (14) is used for adjusting the pressure in the medicine storage tank (2) and the pressure in the well to keep an equilibrium state;
Quick dosing system (4) are including fixed cover (15), fixed plate (16) and screw mechanism (17), fixed cover (15) upper end array is fixed to be provided with four fixed columns (18), four fixed column (18) are fixed respectively to be set up on the inner wall of medicine storage tank (2), can dismantle the setting between the inner wall of fixed plate (16) and fixed cover (15), screw mechanism (17) include motor (19) and rotary device (20), motor (19) are located between fixed plate (16) and fixed cover (15) to fixed the upper end that sets up at fixed plate (16), the output of motor (19) is fixed to be provided with rotary device (20), rotary device (20) pass fixed plate (16) and stretch into the bottom of medicine storage tank (2).
2. The mobile, tunable, power-free oil and gas well and pipeline automatic dosing device of claim 1, wherein: the rapid drug adding system (4) further comprises an anti-shaking plate (21), wherein the anti-shaking plate (21) is positioned between the fixed plate (16) and the rotating device (20) and is arranged in a sliding manner along the axis of the rotating device (20).
3. The mobile, tunable, power-free oil and gas well and pipeline automatic dosing device of claim 1, wherein: the medicine storage tank (2) is also provided with a magnetic flap level meter (22), and the magnetic flap level meter (22) is used for detecting the height of the liquid level of the medicine in the medicine storage tank (2).
4. The mobile, tunable, power-free oil and gas well and pipeline automatic dosing device of claim 1, wherein: the upper end of the medicine storage tank (2) is also provided with a pressure gauge (23), and the pressure gauge (23) is used for detecting whether the pressure in the medicine storage tank (2) reaches an equilibrium state.
5. The mobile, tunable, power-free oil and gas well and pipeline automatic dosing device of claim 1, wherein: one side of the medicine storage tank (2) far away from the muffler (12) is provided with an exhaust pipe (24), the exhaust pipe (24) is used for exhausting gas in the medicine storage tank (2), and the exhaust pipe (24) is provided with an exhaust valve (25).
6. The mobile, tunable, power-free oil and gas well and pipeline automatic dosing device of claim 1, wherein: one side of the medicine storage tank (2) close to the exhaust pipe (24) is provided with a protection pipe (26), the protection pipe (26) is provided with a safety valve (27), a dangerous threshold value and a safe threshold value are configured in the safety valve (27), the safe threshold value is lower than the dangerous threshold value, when the pressure in the medicine storage tank (2) exceeds the dangerous threshold value preset in the safety valve (27), the safety valve (27) is opened, redundant gas in the medicine storage tank (2) is discharged by the protection pipe (26), and the safety valve (27) is closed until the pressure in the medicine storage tank (2) is controlled below the safe threshold value preset in the safety valve (27).
7. A mobile adjustable power-free oil-gas well and pipeline automatic dosing method realized based on the mobile adjustable power-free oil-gas well and pipeline automatic dosing device as claimed in any one of claims 1-6, characterized by comprising the following steps:
Step one: adding a medicament into the medicament storage tank (2): firstly, closing a flow control valve (13) and a back pressure valve (14), and then adding the medicament into the medicament storage tank (2) through a medicament adding port (5);
Step two: pre-dosing assembly into a well: firstly, a medicine outlet (10) and a return air inlet (11) on a quick connector (3) are respectively and fixedly connected with a medicine outlet pipe (9) and a return air pipe (12), and then the quick connector (3) is fixedly connected with an in-well pipeline;
Step three: after the air pressure balance is adjusted, adding medicine: opening a back pressure valve (14), then adjusting a flow control valve (13) to set dosing flow, enabling gas in a well to continuously enter a medicine storage tank (2) through a gas return pipe (12), and enabling a medicine to continuously flow into the well through a medicine outlet pipe (9) when the gas pressure in the medicine storage tank (2) is the same as the gas pressure in the well and reaches a gas pressure balance state;
Step four: the dosing process is ended: the flow control valve (13) monitors the flow of the medicament flowing into the well from the medicament storage tank (2) in real time, and after the flow of the medicament reaches the set medicament adding flow, the flow control valve (13) is closed to stop continuing medicament adding;
Step five: and (3) finishing: the back pressure valve (14) is closed first, then the exhaust valve (25) is opened, and the air pressure in the medicine storage tank (2) is adjusted to be the same as the atmospheric pressure.
8. The mobile, tunable, power-free oil and gas well and pipeline automatic dosing method of claim 7, wherein: during the execution of the third step, the rapid drug adding system (4) is started, and the drug in the drug storage tank (2) is driven to rotate through the rotating device (20), so that the speed of the drug in the drug storage tank (2) flowing into the well is increased.
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