CN116856883A

CN116856883A - Paraffin removal vehicle

Info

Publication number: CN116856883A
Application number: CN202310934788.2A
Authority: CN
Inventors: 袁圣杰; 刘元良; 刘有仓; 李平
Original assignee: Yantai Jereh Petroleum Equipment and Technologies Co Ltd
Current assignee: Yantai Jereh Petroleum Equipment and Technologies Co Ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2023-10-10
Also published as: CN114198057B; CN114198057A

Abstract

The application discloses a paraffin removal vehicle, and relates to the technical field of oilfield yield increase operation wells. A paraffin removal vehicle comprising: the system comprises a vehicle chassis, a heating device, a first pressurizing device and a manifold system; the heating device and the first pressurizing device are respectively arranged on the chassis; the manifold system comprises a liquid inlet pipe, a liquid outlet pipe and a first connecting pipe, wherein the heating device is connected with the first pressurizing device through the first connecting pipe, the liquid inlet pipe is connected with the heating device, and the liquid outlet pipe is connected with the first pressurizing device. The application can at least alleviate the problem that the high-pressure fluid medium is limited by the pressure of the boiler and is difficult to meet the high-pressure requirement.

Description

Paraffin removal vehicle

This patent is application number: 2021113154262, filing date: 20211108, the division of Chinese patent application of the patent name "paraffin removal vehicle".

Technical Field

The application belongs to the technical field of oilfield yield-increasing operation wells, and particularly relates to a paraffin removal vehicle.

Background

When some prior hot oil paraffin removal vehicles are used, liquid is generally pressurized to high pressure through a plunger pump, then is conveyed to a boiler for heating, and finally, the high-temperature high-pressure liquid is used for well flushing paraffin removal operation.

However, some current hot oil paraffin removal vehicles have the following problems:

1) The highest working pressure is 20Mpa, which is limited by the boiler, so that the requirements of the working conditions of high pressure of some deep wells are difficult to be met;

2) The operation working condition is single, only high-pressure hot water can be generated, and the high-pressure hot water is injected into a well and is used for paraffin removal and blockage removal operation;

3) The water tank is in a sealed form, and can only be used for containing water or crude oil and other single liquids;

4) The low-pressure industrial working condition cannot be realized, and when the plunger pump works in some deep wells, the liquid suction capacity of the plunger pump is insufficient, so that the plunger pump is sucked for a long time, and the service life of the plunger pump is influenced for a long time;

5) After the well flushing operation is finished, residual liquid exists in the coiled tubing, so that the inner wall of the coiled tubing is corroded, and the service life of the coiled tubing is influenced;

6) When operating equipment in some severe environments, the operation is inconvenient, physical and mental health of operators is affected, and the like.

Disclosure of Invention

The embodiment of the application aims to provide a paraffin removal vehicle, which can solve at least one of the problems.

In order to solve the technical problems, the application is realized as follows:

the embodiment of the application provides a paraffin removal vehicle, which comprises: the system comprises a vehicle chassis, a heating device, a first pressurizing device and a manifold system;

the heating device and the first pressurizing device are respectively arranged on the chassis;

the manifold system comprises a liquid inlet pipe, a liquid outlet pipe and a first connecting pipe, wherein the heating device is connected with the first pressurizing device through the first connecting pipe, the liquid inlet pipe is connected with the heating device, and the liquid outlet pipe is connected with the first pressurizing device.

In the embodiment of the application, the fluid medium sequentially flows through the liquid inlet pipe, the heating device, the first connecting pipe, the first pressurizing device and the liquid outlet pipe, and when flowing through the heating device, the fluid medium is heated by the heating device to reach the required temperature, and when flowing through the first pressurizing device, the fluid medium is pressurized by the first pressurizing device to reach the required pressure, so that the high-temperature high-pressure fluid medium can flow out through the liquid outlet pipe, thereby meeting the paraffin removal and blockage removal requirements. In addition, the free movement of the paraffin removal vehicle can be realized through the chassis, so that the operation site can be changed conveniently. Based on the arrangement, the paraffin removal vehicle can effectively relieve the limitation of the pressure of the boiler when the high-pressure fluid medium flows into the boiler, thereby meeting the working condition requirement of higher pressure, moving at any time and any place and improving the working efficiency.

Drawings

FIG. 1 is a schematic diagram of a paraffin removal vehicle according to an embodiment of the present application;

FIG. 2 is a schematic diagram showing a combination of a liquid inlet pipe, a heating device, a first connecting pipe, a first pressurizing device and a liquid outlet pipe according to an embodiment of the present application;

fig. 3 is a schematic diagram of a combination of structures including a liquid inlet pipe, a second pressurizing device, a heating device, a first connecting pipe, a first pressurizing device, and a liquid outlet pipe according to an embodiment of the present application;

fig. 4 is a schematic combination diagram of structures of a liquid inlet pipe, a second pressurizing device, a metering container, a second connecting pipe, a heating device, a first connecting pipe, a first pressurizing device, a liquid outlet pipe and the like according to an embodiment of the present application;

fig. 5 is a schematic diagram of the chassis of the vehicle outputting power through a transmission according to an embodiment of the present application.

Reference numerals illustrate:

100-vehicle chassis; 110-chassis engine; 120-chassis gearbox;

200-heating device;

300-a first pressurizing device;

400-a second pressurizing device;

500-metering containers;

600-air compression device;

700-control room;

800-transmission device; 810-a broken shaft power take-off transfer case; 821-first transmission shaft; 822-a second drive shaft; 823-a third drive shaft; 824-fourth drive shaft; 830-auxiliary gearbox; 841-first power take-off; 842-a second power take-off; 851-a first hydraulic pump; 852-a second hydraulic pump; 861-first motor; 862-a second motor; 863-a third motor; 864-fourth motor;

910-a liquid inlet pipe; 920-a liquid outlet pipe; 930-a first connection tube; 940-a second connection tube; 950-a first branch pipe; 960-a second branch pipe; 970—a third branch pipe; 980-fourth branch pipe; 990-fifth branch pipe.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The following describes embodiments of the present application in detail through specific embodiments and application scenarios thereof with reference to the accompanying drawings.

Referring to fig. 1 to 5, the embodiment of the application discloses a paraffin removal vehicle which can be applied to well flushing paraffin removal operation. The disclosed paraffin removal vehicle includes a vehicle chassis 100, a heating device 200, a first pressurizing device 300, and a manifold system.

Wherein the vehicle chassis 100 is a basic installation component of the paraffin removal vehicle, which may provide an installation basis for the heating device 200, the first pressurizing device 300, the manifold system, etc., and the vehicle chassis 100 may also be used to travel the paraffin removal vehicle to change a work site. Alternatively, the chassis 100 may be fuel-powered, electrically-powered, or a hybrid fuel-and-electric drive. Alternatively, the heating device 200 and the first pressurizing device 300 are respectively disposed on the chassis 100, and the chassis 100 can carry the heating device 200, the first pressurizing device 300, and other components to travel, so as to implement operations on different places.

The manifold system is used for connecting the components and conveying the fluid medium. The manifold system includes a liquid inlet pipe 910, a liquid outlet pipe 920, and a first connection pipe 930, wherein the liquid inlet pipe 910 is connected to the heating device 200, the heating device 200 is connected to the first pressurizing device 300 through the first connection pipe 930, and the liquid outlet pipe 920 is connected to the first pressurizing device 300. In this manner, the liquid inlet pipe 910, the heating device 200, the first connection pipe 930, the first pressurizing device 300, and the liquid outlet pipe 920 are sequentially connected in the flow direction of the fluid medium, respectively. Based on this, the fluid medium may flow into the heating device 200 through the liquid inlet pipe 910, and heat the fluid medium by the heating device 200 to reach a preset temperature, then the heated fluid medium flows into the first pressurizing device 300 through the first connecting pipe 930, and pressurizes the fluid medium by the first pressurizing device 300 to reach a preset pressure, then the pressurized fluid flows out through the liquid outlet pipe 920, so that the fluid medium with high temperature and high pressure is injected into the well to realize the paraffin removal operation, and at the same time, the de-plugging operation may also be realized.

Based on the above arrangement, in the embodiment of the present application, the fluid medium is preferentially heated and then pressurized, so that the high-pressure fluid medium formed after pressurization is effectively prevented from flowing into the heating device 200, and therefore, the pressure of the fluid medium is not limited by the heating device 200, so that the fluid medium can reach a higher pressure, and the requirement of a deep well on the higher pressure of the fluid medium is met. In addition, the free movement of the paraffin removal vehicle can be realized through the vehicle chassis 100, and the operation at different places can be realized, so that the scheduling time can be saved, and the operation efficiency can be improved.

Referring to fig. 2, in some embodiments, the manifold system further includes a first branch pipe 950, one end of the first branch pipe 950 is connected to the first connection pipe 930, and the other end of the first branch pipe 950 is connected to the liquid outlet pipe 920. Based on this, the fluid medium can flow in through the liquid inlet pipe 910 and flow to the heating device 200 to be heated to reach a preset temperature, and then the heated high-temperature fluid medium flows to the liquid outlet pipe 920 and flows out through the liquid outlet pipe 920, so that the fluid medium can be used for cleaning the ground pipeline and equipment.

It should be noted that, the above process may generate a high-temperature liquid, which is not pressurized, so as not to be used for injecting into a well to perform a paraffin removal and blocking removal operation, but generates a high-temperature liquid so as to be used for cleaning some components (such as ground pipelines, equipment, etc.), thereby ensuring the cleaning of the components. In addition, in order to switch the flow path of the fluid medium, control valves may be provided on the side of the first connection pipe 930 near the first pressurizing device 300 and on the first branch pipe 950, respectively, and at this time, the on-off of the side of the first connection pipe 930 near the first pressurizing device 300 and the on-off of the first branch pipe 950 may be controlled by the control valves, respectively.

Referring to fig. 3, in some embodiments, the paraffin removal vehicle may further include a second pressurizing device 400, where the second pressurizing device 400 is disposed on the vehicle chassis 100 and is supported and carried by the vehicle chassis 100. Wherein, the second pressurizing device 400 is disposed on the liquid inlet pipe 910. Based on this, the second pressurizing device 400 is located upstream of the heating device 200, so that the fluid medium pressurized by the second pressurizing device 400 flows into the heating device 200, and then flows through the first pressurizing device 300 for secondary pressurization, so that the fluid medium reaches a higher pressure.

The second pressurizing means 400 may employ a low pressure pressurizing means in consideration of the fact that the heating means 200 itself is not subjected to an excessively high pressure. Alternatively, the second pressurizing means 400 may be a centrifugal pump. Based on this, can realize low pressure feed operating mode demand, and can cooperate with first pressure device 300, effectively alleviate the problem that first pressure device 300 imbibition ability is not enough to guarantee that first pressure device 300 can not appear inhaling empty phenomenon, prolonged first pressure device 300's life.

Based on the above arrangement, the fluid medium flows into the second pressurizing device 400 via the liquid inlet pipe 910 for primary pressurizing, so that the fluid medium has a certain pressure, the fluid medium after primary pressurizing flows into the heating device 200 for heating, and then the heated fluid medium flows to the first pressurizing device 300 via the first connecting pipe 930 for secondary pressurizing, so that the high-pressure fluid medium can be obtained, and thus, the fluid medium after secondary pressurizing and heating meets the requirements of pressure and temperature in the paraffin removal and plugging removal operation process, and can be injected into the well for paraffin removal and plugging removal operation.

Referring to fig. 3, in some embodiments, the manifold system may further include a second branch pipe 960, one end of the second branch pipe 960 is connected to the liquid inlet pipe 910, and a junction of the second branch pipe 960 and the liquid inlet pipe 910 is located between the second pressurizing device 400 and the heating device 200, and the other end of the second branch pipe 960 is connected to the first connecting pipe 930. Based on this, the fluid medium after the first pressurization by the second pressurization device 400 may further flow to the first connection pipe 930 through the second branch pipe 960, and then flow into the first pressurization device 300 to be pressurized twice, and finally the fluid medium after the second pressurization flows out through the liquid outlet pipe 920.

Based on the above arrangement, the high pressure fluid medium which can be formed by two times of pressurization is not passed through the heating device 200, so that the temperature of the fluid medium is relatively low, which is unfavorable for paraffin removal and plugging removal operations, however, the high pressure fluid medium can be injected into the well for circulation or pressure test operations in the well.

Here, in order to switch the flow paths of the fluid medium, control valves may be provided at one end of the inlet pipe 910 near the heating device 200 and the second branch pipe 960, respectively, and at this time, the on-off of the inlet pipe 910 near the heating device 200 and the on-off of the second branch pipe 960 may be controlled by the control valves.

Referring to fig. 3, in some embodiments, the manifold system may further include a third branch pipe 970, one end of the third branch pipe 970 is connected to the liquid inlet pipe 910, and a junction between the third branch pipe 970 and the liquid inlet pipe 910 is located between the second pressurizing device 400 and the heating device 200, and the other end of the third branch pipe 970 is connected to the liquid outlet pipe 920. Based on this, the fluid medium once pressurized by the second pressurizing device 400 may also flow out through the liquid outlet pipe 920. Alternatively, the second pressurizing device 400 may be a low-pressure pressurizing device, and the fluid medium pressurized by the low-pressure pressurizing device may be used to supply liquid to other devices.

It should be noted that, since one end of the second branch pipe 960 is located between the second pressurizing device 400 and the heating device 200, and one end of the third branch pipe 970 is located between the second pressurizing device 400 and the heating device 200, one end of the second branch pipe 960 and one end of the third branch pipe 970 may be located at the same joint, and a section of a common main path exists between the second branch pipe 960 and the third branch pipe 970, and the respective branches. Of course, one end of the second branch pipe 960 and one end of the third branch pipe 970 may be located at different joints, and the two branch pipes may be used to drain fluid medium. In addition, in order to switch the flow path of the fluid medium, control valves may be provided at one end of the liquid inlet pipe 910 near the heating apparatus 200 and the third branch pipe 970, respectively, and at this time, the on-off at one end of the liquid inlet pipe 910 near the heating apparatus 200 and the on-off of the third branch pipe 970 may be controlled by the control valves.

Referring to fig. 4, in some embodiments, the paraffin removal vehicle further includes a metering container 500, which metering container 500 may be used to hold a fluid medium. The metering container 500 is disposed on the chassis 100 such that the metering container 500 may be carried by the chassis 100. Alternatively, the metering container 500 may be a metering tank. In addition, the metering container 500 can also be used for mixing chemical solutions, so that the problem that a conventional water tank is only used for containing water or crude oil and other single liquids can be effectively relieved.

The manifold system further comprises a fourth branch pipe 980, one end of the fourth branch pipe 980 is connected with the liquid inlet pipe 910, and a joint of the fourth branch pipe 980 and the liquid inlet pipe 910 is located between the second pressurizing device 400 and the heating device 200, and the other end of the fourth branch pipe 980 is connected with the metering container 500. Based on this, the fluid medium flows to the second pressurizing device 400 via the liquid inlet pipe 910, and the fluid medium pressurized by the second pressurizing device 400 may flow to the metering container 500 via the fourth branch pipe 980, thereby being used for supplying liquid to the metering container 500 or circulating the metering container 500.

Here, in order to switch the flow paths of the fluid medium, control valves may be provided at one end of the liquid inlet pipe 910 adjacent to the heating device 200 and the fourth branched pipe 980, respectively, and at this time, the on/off of the liquid inlet pipe 910 at one end adjacent to the heating device 200 and the on/off of the fourth branched pipe 980 may be controlled by the control valves.

Referring to fig. 4, in some embodiments, the manifold system further includes a fifth branch pipe 990, one end of the fifth branch pipe 990 is connected to the first connection pipe 930, and the other end of the fifth branch pipe 990 is connected to the metering container 500. Based on this, the fluid medium flows to the second pressurizing device 400 via the liquid inlet pipe 910 to be pressurized, and the pressurized fluid medium flows to the heating device 200 to be heated, so that the fluid medium with a certain pressure and a high temperature is obtained, and then the heated fluid medium flows back to the metering container 500 via the fifth branch pipe 990, so that the high temperature fluid medium is formed in the metering container 500, and at this time, other chemical reagents can be mixed to form a process liquid for the oil well stimulation operation.

Here, the other end of the fourth branch pipe 980 is connected to the measuring vessel 500, and the other end of the fifth branch pipe 990 is also connected to the measuring vessel 500, and in this case, there may be a common main line and respective branches between the fourth branch pipe 980 and the fifth branch pipe 990. Of course, the other end of the fourth branch pipe 980 and the other end of the fifth branch pipe 990 may be connected to the measuring vessel 500 at different positions, and in this case, the two branch pipes may each be used to drain the fluid medium into the measuring vessel 500.

Referring to fig. 4, in some embodiments, the manifold system may further include a second connection pipe 940, one end of the second connection pipe 940 is connected to the metering container 500, the other end of the second connection pipe 940 is connected to the liquid inlet pipe 910, and a junction of the second connection pipe 940 and the liquid inlet pipe 910 is close to the liquid inlet port of the liquid inlet pipe 910. Based on this, the fluid medium in the metering container 500 may be refluxed to the liquid inlet pipe 910 so as to flow to other devices, such as the heating device 200, the second pressurizing device 400, etc., via the liquid inlet pipe 910. Here, a control valve may be further disposed on the second connection pipe 940 to control on/off of the second connection pipe 940.

Based on the above arrangement, the fluid medium in the metering container 500 may be transferred into the liquid inlet pipe 910 through the second connection pipe 940, thereby achieving liquid supply; at the same time, the release of the fluid medium in the metering container 500 may also be achieved through the second connection pipe 940, or the process liquid formed by mixing in the metering container 500 may be transferred into the liquid inlet pipe 910 to transfer the process fluid to a desired location.

Referring to fig. 1, in some embodiments, the paraffin removal vehicle further includes an air compression device 600, the air compression device 600 being disposed on the vehicle chassis 100, the air compression device 600 being supported and carried by the vehicle chassis 100. After the well flushing operation is completed, liquid remains in the coiled tubing, and the residual liquid has a certain corrosion effect on the coiled tubing, so that the coiled tubing is damaged for a long time, and the oil well operation is influenced. Based on this, the air compression device 600 can be connected with the coiled tubing, so that air can be blown into the coiled tubing to purge and discharge the residual liquid in the coiled tubing, thereby ensuring the drying of the inside of the coiled tubing, relieving the corrosion of the residual liquid to the coiled tubing, and prolonging the service life of the coiled tubing.

Alternatively, the air compressor 600 may be an air compressor. The air compressor is a component with a certain pressure, and the high-pressure gas generated by the air compressor possibly causes a certain injury to operators, so that the air compressor 600 is arranged at the tail of the chassis 100, and the outlet of the air compressor 600 faces to the rear of the chassis 100, so that the outlet of the air compressor 600 faces outwards, and the operators on the chassis 100 are avoided, thereby ensuring the personal safety of the operators.

Referring to fig. 1, in some embodiments, the paraffin removal vehicle may further include a control room 700, the control room 700 being provided on the vehicle chassis 100. Alternatively, the control chamber 700 is located at the rear of the metering container 500, the metering container 500 is located at the rear of the heating device 200, and the second pressurizing device 400 is located at the lower portion of the metering container 500 and is connected to the metering container 500.

Through the setting of control room 700, can provide operating space for operating personnel, make things convenient for in the operation, and even the paraffin removal car is in the operation in adverse circumstances, because operating personnel operates in control room 700 for operating personnel is not influenced by external adverse circumstances basically, has guaranteed operating personnel's personal safety, and has improved the convenience of operation.

Optionally, the metering container 500 is mounted to the chassis 100 by legs; the second pressurizing device 400 is connected to the metering container 500 through a pipe (i.e., the fourth branch pipe 980) so that the fluid medium can flow back into the metering container 500, thereby cleaning the metering container 500 or supplying the metering container 500 with liquid; the control room 700 is mounted on the vehicle chassis 100 by a base.

In addition, the heating device 200 is located at the rear of the cab of the vehicle chassis 100. Alternatively, the heating device 200 may be mounted on the main beam of the chassis 100 by a base.

The first pressurizing device 300 is provided at the rear of the chassis 100, and the discharge port of the first pressurizing device 300 is provided toward the rear of the chassis 100.

Based on the above arrangement, the arrangement position of the control room 700 is far away from the heating device 200, so that the influence of higher temperature in the control room 700 on the operation of an operator on the paraffin removal vehicle can be effectively relieved; the air compressing device 600 and the first pressurizing device 300 are respectively arranged at the tail part of the chassis 100, and the exhaust ports of the air compressing device 600 and the first pressurizing device face to the rear of the chassis 100 respectively, so that the air compressing device deviates from the operators in the control room 700, and the personal safety of the operators is ensured to a certain extent.

Referring to fig. 1 and 5, in some embodiments, the paraffin removal vehicle may further include a transmission 800, the transmission 800 including a split power transfer case 810, a plurality of drive shafts, and an auxiliary gearbox 830. To achieve powering of the various devices, the vehicle chassis 100 may include a chassis engine 110 and a chassis gearbox 120, the chassis engine 110 may be a power source that may power the various devices, and the chassis gearbox 120 is drivingly connected to the chassis engine 110 to transmit and distribute power output by the chassis engine 110 to distribute power to the various devices.

Optionally, the off-axis power take-off transfer case 810 is in driving connection with the chassis gearbox 120 via a first transmission shaft 821, the auxiliary gearbox 830 is in driving connection with the off-axis power take-off transfer case 810 via a second transmission shaft 822, and the first pressurizing device 300 is in driving connection with the auxiliary gearbox 830 via a third transmission shaft 823. Based on this, the power output from the chassis engine 110 is transmitted to the chassis gearbox 120, and after being distributed, a part is transmitted to the off-axis power take-off transfer case 810 via the first transmission shaft 821, then transmitted to the auxiliary gearbox 830 via the second transmission shaft 822, and finally transmitted to the first pressurizing device 300 via the third transmission shaft 823, so that the pressurizing motion of the first pressurizing device 300 is achieved, and the pressurizing of the fluid medium is achieved.

The specific structure and operation principle of the chassis engine 110, the chassis gearbox 120, the split power transfer case 810, the auxiliary gearbox 830 and the like may be referred to in the related art, and will not be described in detail herein.

In addition, a portion of the power transmitted to the off-axis power take-off transfer case 810 is transmitted to the rear axle of the chassis 100 via the fourth drive shaft 824 to walk the chassis 100, thereby enabling transportation of the devices.

Based on the above arrangement, in the embodiment of the present application, the power of each device of the paraffin removal vehicle is derived from the chassis engine 110, so that no additional engine or generator set is needed to provide power. In addition, the chassis gearbox 120 has a plurality of gears, such as 16 gears, so that the power output can be adjusted by changing the gears to meet the demands of a plurality of working conditions. The auxiliary gearbox 830 may further comprise a plurality of gears, such as 4 gears, so that the first pressurizing device 300 may have more gears, so that the working condition requirement of the first pressurizing device 300 may be satisfied. When the first pressurizing device 300 is a plunger pump, the displacement point can be increased by a plurality of gears of the chassis gearbox 120 and a plurality of units of the auxiliary gearbox 830, so that the whole vehicle displacement can be used in a wider range of working conditions.

Referring to fig. 5, in some embodiments, the paraffin removal vehicle may further include a transmission 800, the transmission 800 further including a first power take-off 841, a second power take-off 842, a first hydraulic pump 851, a second hydraulic pump 852, a first motor 861, a second motor 862, a third motor 863, and a fourth motor 864.

The first motor 861 and the second motor 862 are respectively connected with the first hydraulic pump 851 through oil paths, the first hydraulic pump 851 is in transmission connection with the chassis gearbox 120 through the first power takeoff 841, so that the other part of power in the chassis gearbox 120 is transmitted to the first hydraulic pump 851, and the first hydraulic pump 851 is driven to work so as to drive hydraulic oil to flow in the oil paths, and the first motor 861 and the second motor 862 are driven to rotate through the hydraulic oil. In the embodiment of the present application, the first motor 861 is used to drive the second pressurizing device 400 to work, specifically, the first motor 861 drives the centrifugal pump to rotate, so as to generate the low-pressure fluid medium. The second motor 862 is used to drive the stirring device in the metering container 500 to rotate, so that the solution in the metering container 500 is stirred by the stirring device to make the solution more uniformly mixed.

The third motor 863 and the fourth motor 864 are respectively connected to the second hydraulic pump 852 through oil paths, and the second hydraulic pump 852 is drivingly connected to the chassis gearbox 120 through the second power takeoff 842, so that a further part of power in the chassis gearbox 120 is transmitted to the second hydraulic pump 852, thereby driving the second hydraulic pump 852 to operate to drive hydraulic oil to flow in the oil paths, and the third motor 863 and the fourth motor 864 are driven to rotate through hydraulic oil. In the embodiment of the present application, the third motor 863 is used to drive the air compressor 600 to work, so that the gas can be purged into the coiled tubing to blow away the residual liquid in the coiled tubing, thereby ensuring that the coiled tubing is not corroded by the residual liquid. The fourth motor 864 is used to drive the burner fan in the heating apparatus 200 to operate so that oxygen in the burner can be increased to enhance the heating effect of the heating apparatus 200.

It should be noted that, the specific structure and the working principle of the first power take-off 841 and the second power take-off 842 may refer to the related art, and will not be described in detail herein.

Based on the above arrangement, the power of the chassis gearbox 120 is transmitted to the first motor 861, the second motor 862, the third motor 863 and the fourth motor 864 through the first power takeoff 841 and the second power takeoff 842, so that an engine or a motor is not required to be separately arranged, the structure is simpler, the size is smaller, and the arrangement space of a power system and the whole machine is saved.

In conclusion, the embodiment of the application effectively solves the problem that the pressure of the fluid medium is limited by the boiler and is difficult to meet the requirements of deep well high-pressure operation conditions; the paraffin removal vehicle in the embodiment of the application can not only remove paraffin and remove blockage, but also clean pipelines and equipment, perform in-well circulation or pressure test operation, be used for supplying liquid to the metering container 500 or emptying the metering container 500, clean the metering container 500, mix chemical reagents in the metering container 500 to form process liquid and the like, so that the paraffin removal vehicle in the embodiment of the application can realize the switching of various operation modes, so that the paraffin removal vehicle has more functions and wider application range; in addition, the coiled tubing can be purged to avoid the residual liquid corroding the coiled tubing; and an operation space can be provided for operators, so that the operation is more convenient.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A paraffin removal vehicle, comprising: a chassis (100), a heating device (200), a first pressurizing device (300), and a manifold system;

the heating device (200) and the first pressurizing device (300) are respectively arranged on the chassis (100);

the manifold system comprises a liquid inlet pipe (910), a liquid outlet pipe (920) and a first connecting pipe (930), wherein the heating device (200) and the first pressurizing device (300) are connected through the first connecting pipe (930), the liquid inlet pipe (910) is connected with the heating device (200), and the liquid outlet pipe (920) is connected with the first pressurizing device (300);

the paraffin removal vehicle further comprises a second pressurizing device (400) arranged on the vehicle chassis (100), and the second pressurizing device (400) is arranged on the liquid inlet pipe (910);

the first pressurizing device (300) is a high-pressure pressurizing device, the second pressurizing device (400) is a low-pressure pressurizing device, and the pressure value of the fluid medium pressurized by the first pressurizing device (300) is higher than that of the fluid medium pressurized by the second pressurizing device (400);

the fluid medium flows into the second pressurizing device (400) through the liquid inlet pipe (910) for primary pressurizing, the fluid medium subjected to primary pressurizing flows into the heating device (200) for heating, and the heated fluid medium flows into the first pressurizing device (300) through the first connecting pipe (930) for secondary pressurizing;

the paraffin removal vehicle further comprises an air compression device (600), wherein the air compression device (600) is arranged on the vehicle chassis (100) and is positioned at the tail part of the vehicle chassis (100), and a discharge outlet of the air compression device (600) is arranged towards the rear of the vehicle chassis (100); and/or, the paraffin removal vehicle further comprises a control room (700), a metering container (500) and a second pressurizing device (400) which are respectively arranged on the chassis (100), wherein the metering container (500) is positioned at the rear part of the heating device (200), the second pressurizing device (400) is positioned at the lower part of the metering container (500) and is connected with the metering container (500), and the control room (700) is positioned at the rear part of the metering container (500); and/or the first pressurizing device (300) is positioned at the tail part of the chassis (100), and the outlet of the first pressurizing device (300) is arranged towards the rear of the chassis (100); and/or the heating device (200) is located at the rear of the cab of the chassis (100);

the paraffin removal vehicle further comprises a transmission device (800), wherein the transmission device (800) comprises a broken shaft power taking transfer case (810), a plurality of transmission shafts and an auxiliary gearbox (830); the vehicle chassis (100) comprises a chassis engine (110) and a chassis gearbox (120) in transmission connection with the chassis engine (110), the off-axis power taking transfer case (810) is in transmission connection with the chassis gearbox (120) through a first transmission shaft (821), the auxiliary gearbox (830) is in transmission connection with the off-axis power taking transfer case (810) through a second transmission shaft (822), and the first pressurizing device (300) is in transmission connection with the auxiliary gearbox (830) through a third transmission shaft (823).

2. The paraffin removal vehicle of claim 1, wherein the manifold system further comprises a first branch pipe (950), one end of the first branch pipe (950) is connected to the first connection pipe (930), and the other end of the first branch pipe (950) is connected to the liquid outlet pipe (920).

3. The paraffin removal vehicle of claim 1, wherein the manifold system further comprises a second branch pipe (960), one end of the second branch pipe (960) is connected to the liquid inlet pipe (910), and a junction between the second branch pipe (960) and the liquid inlet pipe (910) is located between the second pressurizing device (400) and the heating device (200), and the other end of the second branch pipe (960) is connected to the first connecting pipe (930).

4. The paraffin removal vehicle according to claim 1, wherein the manifold system further comprises a third branch pipe (970), one end of the third branch pipe (970) is connected to the liquid inlet pipe (910), and a junction between the third branch pipe (970) and the liquid inlet pipe (910) is located between the second pressurizing device (400) and the heating device (200), and the other end of the third branch pipe (970) is connected to the liquid outlet pipe (920).

5. The paraffin removal vehicle as claimed in claim 1, further comprising a metering container (500) provided to the vehicle chassis (100);

the manifold system further comprises a fourth branch pipe (980), one end of the fourth branch pipe (980) is connected with the liquid inlet pipe (910), the joint of the fourth branch pipe (980) and the liquid inlet pipe (910) is positioned between the second pressurizing device (400) and the heating device (200), and the other end of the fourth branch pipe (980) is connected with the metering container (500);

and/or the manifold system comprises a fifth branch pipe (990), one end of the fifth branch pipe (990) is connected with the first connecting pipe (930), and the other end of the fifth branch pipe (990) is connected with the metering container (500).

6. The paraffin removal vehicle according to any one of claims 1 to 5, further comprising a metering container (500);

the manifold system further comprises a second connecting pipe (940), one end of the second connecting pipe (940) is connected with the metering container (500), the other end of the second connecting pipe (940) is connected with the liquid inlet pipe (910), and the joint of the second connecting pipe (940) and the liquid inlet pipe (910) is close to the liquid inlet port of the liquid inlet pipe (910).

7. The paraffin removal vehicle as claimed in claim 1, further comprising a transmission (800), the transmission (800) further comprising a first power take-off (841), a second power take-off (842), a first hydraulic pump (851), a second hydraulic pump (852), a first motor (861), a second motor (862), a third motor (863) and a fourth motor (864), wherein the first motor (861) and the second motor (862) are connected with the first hydraulic pump (851) by oil paths, respectively, and the third motor (863) and the fourth motor (864) are connected with the second hydraulic pump (852) by oil paths, respectively;

the vehicle chassis (100) comprises a chassis engine (110) and a chassis gearbox (120) in transmission connection with the chassis engine (110), the first hydraulic pump (851) is in transmission connection with the chassis gearbox (120) through the first power takeoff (841), and the second hydraulic pump (852) is in transmission connection with the chassis gearbox (120) through the second power takeoff (842).