CN110725667B - LNG well-flushing paraffin removal vehicle - Google Patents
LNG well-flushing paraffin removal vehicle Download PDFInfo
- Publication number
- CN110725667B CN110725667B CN201911012480.2A CN201911012480A CN110725667B CN 110725667 B CN110725667 B CN 110725667B CN 201911012480 A CN201911012480 A CN 201911012480A CN 110725667 B CN110725667 B CN 110725667B
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- valve
- pressure
- gas
- gas cylinder
- liquid
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- 238000011010 flushing procedure Methods 0.000 title claims abstract description 19
- 239000012188 paraffin wax Substances 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000003908 quality control method Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 62
- 239000006200 vaporizer Substances 0.000 claims description 19
- 239000003381 stabilizer Substances 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000004381 surface treatment Methods 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 239000001993 wax Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention discloses an LNG well-flushing paraffin removal vehicle, which comprises a chassis vehicle, a gas cylinder group, a burner and a three-cylinder plunger pump, wherein the gas cylinder group comprises 450L gas cylinders and 335L gas cylinders, a boiler and an operation cabinet are arranged above the chassis vehicle, the burner is arranged on the boiler, the three-cylinder plunger pump is connected to the rear side of the boiler, the water cabinet is connected with the three-cylinder plunger pump through a water quality control system, the gas cylinder group is connected with an LNG gas circuit system, the LNG gas circuit system is connected with the burner, and the chassis vehicle is connected with a transmission system; the gas supply mode of the structure of the invention does not cause obvious drop of the pressure of the gas cylinder group, has obvious and important effect on reducing the pressure in the tank, and finally reduces the pressure in the gas cylinder group to the set pressure of the gas saving valve under the continuous operation of the burner.
Description
Technical Field
The invention relates to the field of well flushing equipment, in particular to an LNG well flushing paraffin removal vehicle.
Background
In the crude oil extraction process, along with the continuous increase of oil wells, continuous increase of workload, change of oil quality and aging of equipment, wax precipitation is serious, the flow of crude oil is hindered, the oil yield of the oil wells is affected, in addition, the demand for well-flushing wax removal equipment is also continuous increased, the cost is also continuous increased, and the existing well-flushing wax removal equipment of the oil wells cannot meet the requirement of crude oil production;
the number and functions of equipment on the conventional well-flushing paraffin removal vehicle are increased, the reasonable arrangement and load distribution of the equipment on a platform are required to be solved on the premise of meeting the technical performance requirements, the installation space is saved to the greatest extent, the trafficability, flexibility and safety of the whole vehicle are ensured, the well-flushing paraffin removal vehicle which is safer and has higher automation degree is required to be designed, and the safety of a wellhead and personal equipment is ensured, so that the invention provides the LNG well-flushing paraffin removal vehicle to solve the defects in the prior art.
Disclosure of Invention
Aiming at the problems, the invention provides the LNG well-flushing paraffin removal vehicle, the gas supply mode of the structure of the invention does not cause the pressure of the gas cylinder group to be obviously reduced, the invention has obvious and important effects on reducing the pressure in the tank, the pressure in the gas cylinder group is finally reduced to the set pressure of the gas saving valve under the continuous operation of the burner, the invention has simple structure, the space on the well-flushing paraffin removal vehicle can be reasonably distributed and utilized, the trafficability, the flexibility and the safety of the whole vehicle are high, and the well-flushing paraffin removal vehicle with higher safety and automation degree can be provided.
The invention provides an LNG well-flushing paraffin removal vehicle which comprises a chassis vehicle, a gas cylinder group, a combustor, a water tank, a boiler, an operation cabinet and a three-cylinder plunger pump, wherein the gas cylinder group comprises 450L gas cylinders and 335L gas cylinders, one side of the chassis vehicle is provided with the 450L gas cylinders, the boiler and the operation cabinet are arranged above the chassis vehicle, the combustor is arranged on the boiler, the rear side of the boiler is connected with the three-cylinder plunger pump, one side of the three-cylinder plunger pump is provided with the water tank, 335L gas cylinders 3 are arranged in the water tank, the 335L gas cylinders and the 450L gas cylinders are connected through a plurality of groups of pipelines, the water tank is connected with the three-cylinder plunger pump through a water quality control system, the LNG gas circuit system is connected with the combustor, the transmission system is connected with the three-cylinder plunger pump, and the transmission system is connected with a main vehicle gearbox of the chassis vehicle through a full-power take-off device.
The further improvement is that: the LNG gas circuit system comprises a liquid inlet valve, a pressure increasing valve, a first check valve, a liquid overflow valve, a pressure regulating valve, a liquid outlet valve, a gas saving valve, a liquid inlet, a supercharger, a vent valve, a main safety valve, an auxiliary safety valve, a first pressure gauge, a liquid level gauge, a vaporizer, a second pressure gauge, a pressure stabilizer, a buffer tank, a second check valve, a pressure reducing valve and a third pressure gauge, wherein the liquid inlet and the liquid inlet are arranged on a pipeline between the 450L gas cylinder and the 335L gas cylinder, the pressure increasing valve, the first check valve, the liquid overflow valve, the pressure regulating valve, the liquid outlet valve and the gas saving valve are arranged on the 450L gas cylinder, the supercharger, the vent valve, the main safety valve, the auxiliary safety valve and the liquid level gauge are arranged on the 335L gas cylinder, the first pressure gauge is arranged on a pipeline between the auxiliary safety valve and the liquid level gauge, the vaporizer is connected with the one side of the gas cylinder, the buffer tank is arranged on one side of the vaporizer, the second pressure gauge and the buffer tank are arranged on the pipeline between the vaporizer and the buffer tank, the combustor is connected with the pressure stabilizer and the pressure stabilizer, and the pressure stabilizing valve are arranged on the pressure stabilizer.
The further improvement is that: the water quality control system comprises a suction pipe system, a safety valve, a third check valve, a high-pressure valve, a liquid bag, a temperature sensor and a pressure sensor, wherein the suction pipe system is arranged on the three-cylinder plunger pump, the safety valve, the third check valve and the high-pressure valve are arranged on pipelines of the three-cylinder plunger pump and a boiler, the liquid bag is connected to the boiler, and the temperature sensor and the pressure sensor are arranged on the liquid bag.
The further improvement is that: the safety valve, the main safety valve and the auxiliary safety valve are all spring servo and leakage type valves.
The further improvement is that: the gas cylinder group is connected with the vaporizer through a low-temperature pipe, and all pipelines between the vaporizer and the burner are heat pipes.
The further improvement is that: the pipe materials of the pipeline and the suction pipe system are stainless steel pipes or copper pipes, and the connecting pieces on the pipeline and the suction pipe system are clamping sleeve connectors.
The further improvement is that: the tubing and connectors require surface treatment with surfactant prior to installation and then drying.
The beneficial effects of the invention are as follows: by arranging the main safety valve, the pressure rise caused by the heat insulation layer and the normal heat leakage loss of the support or the pressure rise caused by the accelerated heat leakage after the vacuum is damaged and under the fire condition can be diffused, and by arranging the auxiliary safety valve, the auxiliary safety valve can be started when the main safety valve fails or is blocked, when the working pressure of the gas cylinder group is lower than the set pressure of the gas saving valve, the gas saving valve is in a closed state, when the burner operates, the pressure in the gas cylinder group only presses liquid out of the bottom of the gas cylinder group into the vaporizer through the liquid outlet pipe, and the gas supply mode of supplying the liquid to the burner after gasification and temperature rise does not cause the pressure of the gas cylinder group to be obviously reduced; when the working pressure of the gas cylinder group is higher than the set pressure of the gas saving valve, the gas saving valve is opened, and when the burner is operated, the pressure in the gas cylinder group presses out the gas phase and liquid phase fuel from the top of the gas cylinder group through the gas phase pipe and the bottom liquid outlet pipe respectively, and then the gas-liquid mixed flow enters the carburetor, and the gas-liquid mixed flow is gasified and heated in the carburetor and then is supplied to the engine, so that the pressure in the tank is obviously and importantly reduced, and the pressure in the gas cylinder group finally drops to the set pressure of the gas saving valve under the continuous operation of the burner.
Drawings
FIG. 1 is a schematic diagram of a front view of a well cleanout truck according to the present invention;
FIG. 2 is a schematic diagram of the LNG gas circuit system of the present invention;
FIG. 3 is a schematic diagram of a water quality control system according to the present invention;
FIG. 4 is a schematic diagram of a transmission system according to the present invention.
Wherein: 1. chassis truck; 2. 450L gas cylinder; 3. 335L gas cylinder; 4. a burner; 5. a water tank; 6. a boiler; 7. an operation cabinet; 8. three-cylinder plunger pump; 9. a transmission system; 10. a full power takeoff; 11. a liquid inlet valve; 12. a pressure increasing valve; 13. a first check valve; 14. a liquid overflow valve; 15. a pressure regulating valve; 16. a liquid outlet valve; 17. a body saving valve; 18. a liquid inlet; 19. a supercharger; 20. an air vent; 21. a blow-off valve; 22. a main safety valve; 23. an auxiliary safety valve; 24. a first pressure gauge; 25. a liquid level gauge; 26. a reformer; 27. a second pressure gauge; 28. a voltage stabilizer; 29. a buffer tank; 30. a second check valve; 31. a pressure reducing valve; 32. a third pressure gauge; 33. suction piping; 34. a safety valve; 35. a third check valve; 36. a high pressure valve; 37. a liquid bag; 38. a temperature sensor; 39. a pressure sensor.
Detailed Description
The present invention will be further described in detail with reference to the following examples, which are only for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
According to the figures 1, 2, 3, 4 show, this embodiment provides a LNG well flushing paraffin removal car, including chassis car 1, gas cylinder group, combustor 4, water tank 5, boiler 6, operation cabinet 7 and three jar plunger pumps 8, the gas cylinder group includes 450L gas cylinder 2 and 335L gas cylinder 3, chassis car 1 one side is equipped with 450L gas cylinder 2, chassis car 1 top is equipped with boiler 6 and operation cabinet 7, be equipped with combustor 4 on the boiler 6, boiler 6 rear side is connected with three jar plunger pumps 8, three jar plunger pumps 8 one side is equipped with water tank 5, be equipped with 335L gas cylinder 3 in the water tank 5, be connected through multiunit pipeline between 335L gas cylinder 3 and 450L gas cylinder 2, water tank 5 passes through water quality control system and connects three jar plunger pumps 8, be connected with LNG gas circuit system on the gas cylinder group, LNG gas circuit system connects combustor 4, be connected with transmission system 9 on chassis car 1, transmission system 9 connects three jar plunger pumps 8, and transmission system 9 passes through full power transmission system 10 and connects power take off car 1.
The LNG gas circuit system comprises a liquid inlet valve 11, a pressure increasing valve 12, a first check valve 13, a liquid overflow valve 14, a pressure regulating valve 15, a liquid outlet valve 16, a gas saving valve 17, a liquid inlet 18, a booster 19, a vent 20, a vent valve 21, a main safety valve 22, an auxiliary safety valve 23, a first pressure gauge 24, a liquid level gauge 25, a vaporizer 26, a second pressure gauge 27, a pressure stabilizer 28, a buffer tank 29, a second check valve 30, a pressure reducing valve 31 and a third pressure gauge 32, wherein a pipeline between the 450L gas cylinder 2 and the 335L gas cylinder 3 is provided with the liquid inlet valve 11 and the liquid inlet 18, the 450L gas cylinder 2 is provided with the booster valve 12, the first check valve 13, the liquid overflow valve 14, the pressure regulating valve 15, the liquid outlet valve 16 and the gas saving valve 17, the booster 19, the vent 20, the vent valve 21, the main safety valve 22, the auxiliary safety valve 23 and the liquid level gauge 25, the first pressure gauge 24 is arranged on the pipeline between the auxiliary safety valve 23 and the meter 25, the liquid level gauge 26 is provided with the liquid level gauge 26, the liquid level gauge 26 is arranged on one side of the 450L gas cylinder 2 and the liquid level gauge 29, the liquid level gauge 26 is connected with the buffer tank 26 and the pressure stabilizer 28 is arranged on the side of the buffer tank 28 and the pressure stabilizer 28 is connected with the pressure stabilizer 28 and the pressure stabilizer 4.
The water quality control system comprises a suction pipe system 33, a safety valve 34, a third check valve 35, a high-pressure valve 36, a liquid bag 37, a temperature sensor 38 and a pressure sensor 39, wherein the suction pipe system 33 is arranged on the three-cylinder plunger pump 8, the safety valve 34, the third check valve 35 and the high-pressure valve 36 are arranged on the pipelines of the three-cylinder plunger pump 8 and the boiler 6, the liquid bag 37 is connected to the boiler 6, and the temperature sensor 38 and the pressure sensor 39 are arranged on the liquid bag 37.
The relief valve 34, the primary relief valve 22 and the secondary relief valve 23 are all spring-actuated, leak-type valves.
The gas cylinder group is connected with the vaporizer 26 through a low-temperature pipe, and all the pipelines between the vaporizer 26 and the burner 4 are heat pipes.
The pipes of the pipeline and the suction pipe system 33 are stainless steel pipes or copper pipes, and the connectors on the pipeline and the suction pipe system 33 are clamping sleeve connectors.
The tubing suction piping 33 and connectors require surface treatment with surfactant prior to installation and then drying.
By arranging the main safety valve 22, the pressure rise caused by the heat insulation layer and the normal heat leakage loss of the support or the pressure rise caused by the accelerated heat leakage after the vacuum is damaged and under the fire condition can be diffused, and by arranging the auxiliary safety valve 23, the auxiliary safety valve 23 can be started when the main safety valve 22 fails or is blocked, when the working pressure of the gas cylinder group is lower than the set pressure of the gas saving valve 17, the gas saving valve 17 is in a closed state, when the burner 4 operates, the pressure in the gas cylinder group only presses liquid out from the bottom of the gas cylinder group through a liquid outlet pipe into the vaporizer 26, and the gas supply mode of supplying the liquid to the burner 4 after gasification and temperature rise can not cause the pressure of the gas cylinder group to be obviously reduced; when the working pressure of the gas cylinder group is higher than the set pressure of the gas saving valve 17, the gas saving valve 17 is opened, when the burner 4 operates, the pressure in the gas cylinder group presses out the gas phase and liquid phase fuel from the top of the gas cylinder group through the gas phase pipe and the bottom liquid pipe respectively, and the gas-liquid mixed flow enters the vaporizer 26, is gasified and heated in the vaporizer 26 and then is supplied to the engine, so that the pressure in the tank is obviously and importantly reduced, and the pressure in the gas cylinder group finally drops to the set pressure of the gas saving valve 17 under the continuous operation of the burner 4.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. An LNG well-flushing paraffin removal vehicle which is characterized in that: the automatic transmission device comprises a chassis vehicle (1), a gas cylinder group, a combustor (4), a water tank (5), a boiler (6), an operation cabinet (7) and a three-cylinder plunger pump (8), wherein the gas cylinder group comprises 450L gas cylinders (2) and 335L gas cylinders (3), 450L gas cylinders (2) are arranged on one side of the chassis vehicle (1), the combustor (4) is arranged above the chassis vehicle (1), the three-cylinder plunger pump (8) is connected to the rear side of the boiler (6), the water tank (5) is arranged on one side of the three-cylinder plunger pump (8), 335L gas cylinders (3) are arranged in the water tank (5), the 335L gas cylinders (3) and the 450L gas cylinders (2) are connected through a plurality of groups of pipelines, the water tank (5) is connected with the three-cylinder plunger pump (8) through a water quality control system, the gas cylinder group is connected with an LNG gas circuit system, the combustor (4) is connected with the chassis vehicle (1), a transmission system (9) is connected with the three-cylinder plunger pump (9), and the transmission system (9) is connected with the full-power transmission vehicle (10) through the transmission system (10);
the LNG gas circuit system comprises a liquid inlet valve (11), a pressure increasing valve (12), a first check valve (13), a liquid overflow valve (14), a pressure regulating valve (15), a liquid outlet valve (16), a gas saving valve (17), a liquid inlet (18), a booster (19), a vent port (20), a vent valve (21), a main safety valve (22), a secondary safety valve (23), a first pressure gauge (24), a liquid level gauge (25), a vaporizer (26), a second pressure gauge (27), a pressure stabilizer (28), a buffer tank (29), a second check valve (30), a pressure reducing valve (31) and a third pressure gauge (32), wherein the pipeline between the 450L gas cylinder (2) and 335L gas cylinder (3) is provided with the liquid inlet valve (11) and the liquid inlet (18), the 450L gas cylinder (2) is provided with the pressure increasing valve (12), the first check valve (13), the liquid overflow valve (14), the pressure regulating valve (15), the liquid outlet valve (16) and the gas saving valve (17), the L gas cylinder (3) is provided with the booster (19), the vent port (20), the main safety valve (21), the secondary safety valve (23) and the vent valve (25), a first pressure gauge (24) is arranged on a pipeline between the auxiliary safety valve (23) and the liquid level meter (25), one side of the gas cylinder group is connected with a vaporizer (26), one side of the vaporizer (26) is provided with a buffer tank (29), a second pressure gauge (27) and a pressure stabilizer (28) are arranged on the pipeline between the vaporizer (26) and the buffer tank (29), the pressure stabilizer (28) is connected with the burner (4), and a second check valve (30), a pressure reducing valve (31) and a third pressure gauge (32) are arranged on the pipeline between the pressure stabilizer (28) and the burner (4);
the water quality control system comprises a suction pipe system (33), a safety valve (34), a third check valve (35), a high-pressure valve (36), a liquid bag (37), a temperature sensor (38) and a pressure sensor (39), wherein the suction pipe system (33) is arranged on the three-cylinder plunger pump (8), the safety valve (34), the third check valve (35) and the high-pressure valve (36) are arranged on the pipeline between the three-cylinder plunger pump (8) and the boiler (6), the liquid bag (37) is connected to the boiler (6), and the temperature sensor (38) and the pressure sensor (39) are arranged on the liquid bag (37);
the gas cylinder group is connected with the vaporizer (26) through a low-temperature pipe, and all pipelines between the vaporizer (26) and the burner (4) are heat pipes.
2. An LNG flushing paraffin removal vehicle as claimed in claim 1, wherein: the safety valve (34), the main safety valve (22) and the auxiliary safety valve (23) are all spring servo and leakage type valves.
3. An LNG flushing paraffin removal vehicle as claimed in claim 1, wherein: the pipes of the pipeline and the suction pipe system (33) are stainless steel pipes or copper pipes, and the connecting pieces on the pipeline and the suction pipe system (33) are clamping sleeve connectors.
4. An LNG flushing paraffin removal vehicle as claimed in claim 3, wherein: the tubing (33) and connectors require surface treatment with surfactant prior to installation and then drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911012480.2A CN110725667B (en) | 2019-10-23 | 2019-10-23 | LNG well-flushing paraffin removal vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911012480.2A CN110725667B (en) | 2019-10-23 | 2019-10-23 | LNG well-flushing paraffin removal vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110725667A CN110725667A (en) | 2020-01-24 |
| CN110725667B true CN110725667B (en) | 2023-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911012480.2A Active CN110725667B (en) | 2019-10-23 | 2019-10-23 | LNG well-flushing paraffin removal vehicle |
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| Country | Link |
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| CN (1) | CN110725667B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233244B (en) * | 2021-12-29 | 2024-01-09 | 吉林石油装备技术工程服务有限公司 | Full-automatic intelligent paraffin removal device |
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|---|---|
| CN110725667A (en) | 2020-01-24 |
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