paraffin car

Abstract

The application discloses a wax removal vehicle and relates to the technical field of oil field production operation wells. The wax removal vehicle comprises a vehicle chassis, a heating device, a first pressurizing device and a manifold system. The heating device and the first pressurizing device are arranged on the vehicle chassis. The manifold system comprises a liquid inlet pipe, a liquid outlet pipe and a first connecting pipe. The heating device and the first pressurizing device are connected through the first connecting pipe. The liquid inlet pipe is connected with the heating device. The liquid outlet pipe is connected with the first pressurizing device. The application can at least alleviate the problem that high-pressure fluid medium is difficult to meet high-pressure requirements due to the limitation of boiler pressure.

Description

[0001] The present patent is a division of the Chinese patent application with the application number 2021113154262, the application date 20211108, and the patent name "wax removal vehicle". TECHNICAL FIELD

[0002] The present application belongs to the technical field of oilfield stimulation operation wells, and specifically relates to a wax removal vehicle. BACKGROUND

[0003] Currently, when some hot oil wax removal vehicles are used, liquid is generally pressurized to high pressure by a plunger pump first, then delivered to a boiler for heating, and finally the high-temperature and high-pressure liquid is used for well washing and wax removal operation.

[0004] However, the current hot oil wax removal vehicles have the following problems:

[0005] 1) Limited by the boiler, the maximum working pressure is generally 20Mpa, which is difficult to meet the operation working condition requirements of some deep wells with high pressure;

[0006] 2) The operation working condition is single, and only high-pressure hot water can be produced to be injected into the well for wax removal and plugging removal operation;

[0007] 3) The self-contained water tank is generally in a closed form and can only be used to contain single liquids such as water or crude oil;

[0008] 4) Low-pressure industrial working conditions cannot be achieved, and the liquid suction capacity of the plunger pump is insufficient when operating some deep wells, resulting in long-term suction of air, which affects the service life of the plunger pump over time;

[0009] 5) After well washing operation is completed, residual liquid is stored in the coiled tubing, which has a corrosive effect on the inner wall of the coiled tubing, affecting the service life of the coiled tubing;

[0010] 6) When operating the equipment in some harsh environments, it is inconvenient to operate and affects the physical and mental health of the operator, etc. SUMMARY

[0011] The purpose of the embodiments of the present application is to provide a wax removal vehicle that can solve at least one of the above problems.

[0012] In order to solve the above technical problems, the present application is implemented as follows:

[0013] The embodiments of the present application provide a wax removal vehicle, which comprises a vehicle chassis, a heating device, a first pressurizing device and a manifold system;

[0014] The heating device and the first pressurizing device are respectively arranged on the vehicle chassis;

[0015] The manifold system comprises an inlet pipe, an outlet pipe and a first connecting pipe, the heating device and the first pressurizing device are connected through the first connecting pipe, the inlet pipe is connected with the heating device, and the outlet pipe is connected with the first pressurizing device.

[0016] In the embodiment of the present application, the fluid medium flows through the inlet pipe, the heating device, the first connecting pipe, the first pressurizing device and the outlet pipe in sequence, 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 and high-pressure fluid medium can flow out through the outlet pipe, thereby meeting the requirements of wax removal and plugging removal. In addition, the free movement of the wax removal vehicle can be realized through the chassis to facilitate the change of the working site. Based on the above arrangement, the wax removal vehicle in the present application can effectively alleviate the limitation of the boiler pressure when the high-pressure fluid medium flows into the boiler, thereby meeting the requirements of higher pressure working conditions and being able to move anywhere at any time, improving the working efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structure schematic diagram of the wax removal vehicle disclosed in the embodiment of the present application;

[0018] Figure 2 A combination schematic diagram of the inlet pipe, the heating device, the first connecting pipe, the first pressurizing device and the outlet pipe disclosed in the embodiment of the present application;

[0019] Figure 3 A combination schematic diagram of the inlet pipe, the second pressurizing device, the heating device, the first connecting pipe, the first pressurizing device and the outlet pipe and other structures disclosed in the embodiment of the present application;

[0020] Figure 4 A combination schematic diagram of the inlet pipe, the second pressurizing device, the metering container, the second connecting pipe, the heating device, the first connecting pipe, the first pressurizing device and the outlet pipe and other structures disclosed in the embodiment of the present application;

[0021] Figure 5 A principle diagram of the chassis outputting power through the transmission device disclosed in the embodiment of the present application.

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] 100-chassis; 110-chassis engine; 120-chassis gearbox;

[0024] 200-heating device;

[0025] 300-first pressurizing device;

[0026] 400-second pressurizing device;

[0027] 500 - metering container;

[0028] 600 - air compression device;

[0029] 700 - control room;

[0030] 800 - transmission device; 810 - split-axle power take-off transfer case; 821 - first transmission shaft; 822 - second transmission shaft; 823 - third transmission shaft; 824 - fourth transmission shaft; 830 - auxiliary transmission; 841 - first power take-off; 842 - second power take-off; 851 - first hydraulic pump; 852 - second hydraulic pump; 861 - first motor; 862 - second motor; 863 - third motor; 864 - fourth motor;

[0031] 910 - liquid inlet pipe; 920 - liquid outlet pipe; 930 - first connecting pipe; 940 - second connecting pipe; 950 - first branch pipe; 960 - second branch pipe; 970 - third branch pipe; 980 - fourth branch pipe; 990 - fifth branch pipe. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a category, not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally represents a "or" relationship between the front and rear associated objects.

[0034] The embodiments of the present application will be described in detail below with reference to the drawings and specific examples and their application scenarios.

[0035] Reference Figures 1 to 5 The embodiments of the present application disclose a wax cleaning vehicle, which can be applied to well washing and wax cleaning operation. The disclosed wax cleaning vehicle comprises a vehicle chassis 100, a heating device 200, a first pressurizing device 300, and a manifold system.

[0036] The vehicle chassis 100 is a basic installation component of the wax removal vehicle, which can provide installation basis for the heating device 200, the first pressure device 300, the manifold system and the like, and the vehicle chassis 100 can also be used to move the wax removal vehicle to change the working site. Optionally, the vehicle chassis 100 can be fuel-driven, electrically driven, or fuel-electric hybrid driven. Optionally, the heating device 200 and the first pressure device 300 are arranged on the vehicle chassis 100, and the vehicle chassis 100 can carry the heating device 200, the first pressure device 300 and the like to move to implement work at different sites.

[0037] The manifold system is used to connect various components and transport fluid medium. The manifold system includes a liquid inlet pipe 910, a liquid outlet pipe 920 and a first connecting pipe 930. The liquid inlet pipe 910 is connected with the heating device 200, the heating device 200 and the first pressure device 300 are connected through the first connecting pipe 930, and the liquid outlet pipe 920 is connected with the first pressure device 300. In this way, the liquid inlet pipe 910, the heating device 200, the first connecting pipe 930, the first pressure device 300 and the liquid outlet pipe 920 are sequentially connected along the flow direction of the fluid medium. Based on this, the fluid medium can flow into the heating device 200 through the liquid inlet pipe 910, and the fluid medium is heated by the heating device 200 to reach a preset temperature, and then the heated fluid medium flows into the first pressure device 300 through the first connecting pipe 930, and the fluid medium is pressurized by the first pressure device 300 to reach a preset pressure, and then the pressurized fluid medium flows out through the liquid outlet pipe 920, so that the high-temperature and high-pressure fluid medium is injected into the well to implement the wax removal work, and at the same time, the plugging removal work can also be implemented.

[0038] 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 can effectively flow 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 to meet the requirement of deep well for higher pressure of fluid medium. In addition, the vehicle chassis 100 can realize free movement of the wax removal vehicle, and different sites can be worked, so that the scheduling time can be saved and the work efficiency can be improved.

[0039] Reference Figure 2 In some embodiments, the manifold system further includes a first branch pipe 950, one end of the first branch pipe 950 is connected with the first connecting pipe 930, and the other end of the first branch pipe 950 is connected with the liquid outlet pipe 920. Based on this, the fluid medium can flow into the heating device 200 through the liquid inlet pipe 910 for heating 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 ground pipeline and equipment cleaning work can be implemented.

[0040] It should be noted that the above process can produce high-temperature liquid, and the high-temperature liquid is not used for injecting into the well for wax removal and plugging removal operation due to no pressurization, but the high-temperature liquid is produced to facilitate cleaning of some components (such as ground pipelines, equipment, etc.) to ensure the cleanliness of the components. In addition, in order to switch the flow path of the fluid medium, a control valve can be arranged on the side of the first connecting pipe 930 close to the first pressurizing device 300 and on the first branch pipe 950, respectively, at this time, the on-off of the side of the first connecting pipe 930 close to the first pressurizing device 300 and the on-off of the first branch pipe 950 can be controlled by the control valves, respectively.

[0041] Reference Figure 3 In some embodiments, the wax removal vehicle can further include a second pressurizing device 400, which is arranged on the vehicle chassis 100 and supported and carried by the vehicle chassis 100. The second pressurizing device 400 is arranged 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.

[0042] Considering that the pressure borne by the heating device 200 itself should not be too high, thus, the second pressurizing device 400 can adopt a low-pressure pressurizing device. Alternatively, the second pressurizing device 400 can be a centrifugal pump. Based on this, the low-pressure liquid supply working condition requirement can be realized, and the problem of insufficient liquid suction capacity of the first pressurizing device 300 can be effectively alleviated, so as to ensure that the first pressurizing device 300 will not appear empty suction phenomenon, and the service life of the first pressurizing device 300 is prolonged.

[0043] Based on the above arrangement, the fluid medium flows into the second pressurizing device 400 through the liquid inlet pipe 910, is pressurized once, so that the fluid medium has a certain pressure, the fluid medium pressurized once flows into the heating device 200 for heating, and then the heated fluid medium flows to the first pressurizing device 300 through the first connecting pipe 930 for secondary pressurization, so that high-pressure fluid medium can be obtained, thus, the fluid medium pressurized twice and heated meets the requirements of pressure and temperature in the process of wax removal and plugging removal operation, so as to be injected into the well for wax removal and plugging removal operation.

[0044] Reference Figure 3In some embodiments, the manifold system can further include a second branch pipe 960, one end of the second branch pipe 960 being connected with the liquid inlet pipe 910, and the joint between the second branch pipe 960 and the liquid inlet pipe 910 being located between the second pressurizing device 400 and the heating device 200, and the other end of the second branch pipe 960 being connected with the first connecting pipe 930. Based on this, the fluid medium that has been pressurized once by the second pressurizing device 400 can further flow to the first connecting pipe 930 through the second branch pipe 960, and then flow into the first pressurizing device 300 to be pressurized twice, and finally the fluid medium that has been pressurized twice flows out through the liquid outlet pipe 920.

[0045] Based on the above arrangement, the high-pressure fluid medium formed by being pressurized twice has a relatively low temperature due to not passing through the heating device 200, which is not conducive to wax removal and plugging removal operations, however, the high-pressure fluid medium can be injected into the well for well circulation or pressure test operations.

[0046] It should be noted here that in order to switch the flow path of the fluid medium, a control valve can be arranged on the end of the liquid inlet pipe 910 close to the heating device 200 and on the second branch pipe 960 respectively, at this time the on-off of the end of the liquid inlet pipe 910 close to the heating device 200 and the on-off of the second branch pipe 960 can be controlled by the control valve.

[0047] Reference Figure 3 In some embodiments, the manifold system can further include a third branch pipe 970, one end of the third branch pipe 970 being connected with the liquid inlet pipe 910, and the joint between the third branch pipe 970 and the liquid inlet pipe 910 being located between the second pressurizing device 400 and the heating device 200, and the other end of the third branch pipe 970 being connected with the liquid outlet pipe 920. Based on this, the fluid medium that has been pressurized once by the second pressurizing device 400 can further flow out through the liquid outlet pipe 920. Optionally, the second pressurizing device 400 can be a low-pressure pressurizing device, and the fluid medium pressurized by the second pressurizing device 400 can be used to supply liquid to other equipment.

[0048] 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, thus, the one end of the second branch pipe 960 and the one end of the third branch pipe 970 can be located at the same connection, at this time, there is a shared main path between the second branch pipe 960 and the third branch pipe 970, and respective branch paths. Of course, the one end of the second branch pipe 960 and the one end of the third branch pipe 970 can also be located at different connections, at this time, the two branch pipes can be used for respectively conducting fluid medium. In addition, in order to switch the flow path of the fluid medium, a control valve can be arranged on the one end of the liquid inlet pipe 910 close to the heating device 200 and the third branch pipe 970 respectively, at this time, the on-off of the one end of the liquid inlet pipe 910 close to the heating device 200 and the on-off of the third branch pipe 970 can be controlled by the control valves.

[0049] Reference Figure 4 In some embodiments, the wax removal vehicle also includes a metering container 500, which can be used to hold fluid medium. The metering container 500 is arranged on the vehicle chassis 100, so that the metering container 500 can be carried by the vehicle chassis 100. Optionally, the metering container 500 can be a metering tank. In addition, the metering container 500 can also be used for mixing chemical solutions, so as to effectively alleviate the problem that the conventional water tank is only used to hold a single liquid such as water or crude oil.

[0050] The manifold system also includes a fourth branch pipe 980, one end of the fourth branch pipe 980 is connected with the liquid inlet pipe 910, and the connection between 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 through the liquid inlet pipe 910, and the fluid medium pressurized by the second pressurizing device 400 can flow into the metering container 500 through the fourth branch pipe 980, so as to be used for supplying liquid to the metering container 500 or circulating cleaning the metering container 500.

[0051] It should be noted that, in order to switch the flow path of the fluid medium, a control valve can be arranged on the one end of the liquid inlet pipe 910 close to the heating device 200 and the fourth branch pipe 980 respectively, at this time, the on-off of the one end of the liquid inlet pipe 910 close to the heating device 200 and the on-off of the fourth branch pipe 980 can be controlled by the control valves.

[0052] Reference Figure 4In some embodiments, the manifold system further comprises a fifth branch pipe 990, one end of which is connected with the first connecting pipe 930, and the other end of which 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 for pressurization, and the pressurized fluid medium flows to the heating device 200 for heating, so as to obtain fluid medium with certain pressure and high temperature, and then the heated fluid medium flows back to the metering container 500 via the fifth branch pipe 990, so as to form high-temperature fluid medium in the metering container 500, at which time other chemical reagents can be mixed to form process liquid for oil well stimulation operation.

[0053] It should be noted that the other end of the fourth branch pipe 980 is connected with the metering container 500, and the other end of the fifth branch pipe 990 is also connected with the metering container 500, at which time there can be a shared main path between the fourth branch pipe 980 and the fifth branch pipe 990, and respective branch paths. Of course, the other end of the fourth branch pipe 980 and the other end of the fifth branch pipe 990 can also be connected with the metering container 500 at different positions, at which time the two branch pipes can be respectively used to conduct fluid medium to the metering container 500.

[0054] Reference Figure 4 In some embodiments, the manifold system can further comprise a second connecting pipe 940, one end of which is connected with the metering container 500, and the other end of which is connected with the liquid inlet pipe 910, and the connection between the second connecting 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 can flow back to the liquid inlet pipe 910, so as to flow to other devices such as the heating device 200 and the second pressurizing device 400 via the liquid inlet pipe 910. It should be noted that a control valve can also be arranged on the second connecting pipe 940 to control the on-off of the second connecting pipe 940.

[0055] Based on the above arrangement, the fluid medium in the metering container 500 can be delivered to the liquid inlet pipe 910 via the second connecting pipe 940, so as to realize liquid supply; at the same time, the fluid medium in the metering container 500 can also be released via the second connecting pipe 940, or the process liquid mixed and formed in the metering container 500 can be delivered to the liquid inlet pipe 910, so as to deliver the process liquid to the required position.

[0056] Reference Figure 1In some embodiments, the wax removal vehicle further comprises an air compression device 600, which is arranged on the vehicle chassis 100 and supported and carried by the vehicle chassis 100. After the well washing operation is completed, there is liquid remaining in the coiled tubing, which has a certain corrosive effect on the coiled tubing and can cause damage to the coiled tubing over a long period of time, affecting the oil well operation. Based on this, the air compression device 600 can be connected to the coiled tubing, so that air can be blown into the coiled tubing to blow out the remaining liquid in the coiled tubing, thereby ensuring the dryness of the inside of the coiled tubing and alleviating the corrosive effect of the remaining liquid on the coiled tubing, thereby prolonging the service life of the coiled tubing.

[0057] Optionally, the air compression device 600 can be an air compressor. The air compressor is a component with a certain pressure, and the high-pressure gas generated thereby can cause certain harm to the operator. Therefore, the air compression device 600 is arranged at the tail of the vehicle chassis 100, and the discharge port of the air compression device 600 faces the rear of the vehicle chassis 100. In this way, the discharge port of the air compression device 600 faces outward and avoids the operator on the vehicle chassis 100, thereby ensuring the personal safety of the operator.

[0058] Reference Figure 1 In some embodiments, the wax removal vehicle can further comprise a control room 700 arranged on the vehicle chassis 100. Optionally, the control room 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 part of the metering container 500 and connected to the metering container 500.

[0059] The provision of the control room 700 can provide an operating space for the operator, facilitating operation. Even if the wax removal vehicle is operating in a harsh environment, the operator is basically not affected by the harsh external environment, ensuring the personal safety of the operator and improving the convenience of operation.

[0060] Optionally, the metering container 500 is installed on the vehicle chassis 100 by a support leg; the second pressurizing device 400 is connected to the metering container 500 by a pipeline (i.e., a fourth branch pipe 980) to enable the fluid medium to flow back to the metering container 500, achieving cleaning or liquid supply to the metering container 500; and the control room 700 is installed on the vehicle chassis 100 by a base.

[0061] In addition, the heating device 200 is located at the rear of the cab of the vehicle chassis 100. Optionally, the heating device 200 can be installed on the main beam of the vehicle chassis 100 by a base.

[0062] In addition, the first pressurizing device 300 is arranged at the tail of the vehicle chassis 100, and the discharge port of the first pressurizing device 300 is arranged towards the rear of the vehicle chassis 100.

[0063] Based on the above arrangement, the control chamber 700 is arranged away from the heating device 200, so that the high temperature in the control chamber 700 can be effectively relieved to affect the operation of the operator; the air compressor 600 and the first pressurizing device 300 are arranged at the tail of the vehicle chassis 100, and the discharge ports of the two are arranged towards the rear of the vehicle chassis 100, so as to be away from the operator in the control chamber 700, thereby ensuring the personal safety of the operator to a certain extent.

[0064] Reference Figure 1 and Figure 5 In some embodiments, the wax removal vehicle can further include a transmission device 800, which includes a broken shaft power take-off transfer case 810, a plurality of transmission shafts and an auxiliary gearbox 830. In order to realize the power supply for each device, the vehicle chassis 100 can include a chassis engine 110 which can be used as a power source and can provide power for each device, and a chassis gearbox 120 which is in driving connection with the chassis engine 110 to transmit and distribute the power output by the chassis engine 110 to distribute the power to each device.

[0065] Optionally, the broken shaft power take-off transfer case 810 is in driving connection with the chassis gearbox 120 through a first transmission shaft 821, the auxiliary gearbox 830 is in driving connection with the broken shaft power take-off transfer case 810 through a second transmission shaft 822, and the first pressurizing device 300 is in driving connection with the auxiliary gearbox 830 through a third transmission shaft 823. Based on this, the power output by the chassis engine 110 is transmitted to the chassis gearbox 120, and after being distributed, a part of the power is transmitted to the broken shaft power take-off transfer case 810 through the first transmission shaft 821, and then transmitted to the auxiliary gearbox 830 through the second transmission shaft 822, and finally transmitted to the first pressurizing device 300 through the third transmission shaft 823, so as to realize the pressurizing movement of the first pressurizing device 300 to realize the pressurization of the fluid medium.

[0066] It should be noted here that the specific structure and working principle of the above-mentioned chassis engine 110, chassis gearbox 120, broken shaft power take-off transfer case 810, auxiliary gearbox 830 and the like can refer to related technologies, and will not be described in detail here.

[0067] In addition, the power transmitted to the broken shaft power take-off transfer case 810 is also transmitted to the rear axle of the vehicle chassis 100 through a fourth transmission shaft 824 to make the vehicle chassis 100 walk, so as to realize the transportation of each device.

[0068] Based on the above setting, in the embodiments of the present application, the power of each device of the wax 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 multiple gears, such as 16 gears, so that the power output can be adjusted by changing the gear to meet the needs of multiple working conditions. The auxiliary gearbox 830 can also include multiple gears, such as 4 gears, so that the first pressurizing device 300 has more gears to meet the working condition requirements of the first pressurizing device 300. When the first pressurizing device 300 is a plunger pump, the multiple gears of the chassis gearbox 120 and the multiple units of the auxiliary gearbox 830 can increase the displacement point, so that the vehicle displacement working condition range is wider.

[0069] Reference Figure 5 In some embodiments, the wax removal vehicle can also include a transmission device 800, which further includes a first power takeoff 841, a second power takeoff 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.

[0070] The first motor 861 and the second motor 862 are respectively connected to the first hydraulic pump 851 through an oil circuit, and the first hydraulic pump 851 is drivingly connected to the chassis gearbox 120 through the first power takeoff 841. Thus, another part of the power in the chassis gearbox 120 is transmitted to the first hydraulic pump 851, so as to drive the first hydraulic pump 851 to work, so that the hydraulic oil flows in the oil circuit, and drives the first motor 861 and the second motor 862 to rotate through the hydraulic oil. In the embodiments 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 to generate 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 uniform.

[0071] The third motor 863 and the fourth motor 864 are connected with the second hydraulic pump 852 through oil lines respectively, the second hydraulic pump 852 is in driving connection with the chassis transmission 120 through the second power takeoff 842, in this way, a part of power in the chassis transmission 120 is transmitted to the second hydraulic pump 852, so as to drive the second hydraulic pump 852 to work, to drive the hydraulic oil to flow in the oil line, and the third motor 863 and the fourth motor 864 are driven to rotate by the hydraulic oil. In the embodiment of the application, the third motor 863 is used to drive the air compression device 600 to work, so that the gas can be blown into the coiled tubing to blow away the residual liquid in the coiled tubing, and the coiled tubing is prevented from being corroded by the residual liquid. The fourth motor 864 is used to drive the burner fan in the heating device 200 to work, so that the oxygen in the burner can be increased, and the heating effect of the heating device 200 is enhanced.

[0072] It should be noted that the specific structure and working principle of the first power takeoff 841 and the second power takeoff 842 can refer to related technologies, and will not be described in detail here.

[0073] Based on the above setting, the power of the chassis transmission 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 a separate engine or motor is not needed, so that the structure is more simple and the volume is smaller, and the power system and the whole machine arrangement space are saved.

[0074] In summary, the embodiment of the application effectively overcomes the problem that the pressure of the fluid medium is limited by the boiler and is difficult to meet the working condition requirement of deep well high pressure operation; the wax removal vehicle in the embodiment of the application can not only perform wax removal and blockage removal operation, but also can clean pipelines and equipment, perform well circulation or pressure test operation, supply liquid to the metering container 500 or empty the metering container 500, clean the metering container 500, mix chemical reagents in the metering container 500 to form process liquid, etc., so that the wax removal vehicle in the embodiment of the application can switch between multiple operation modes, has more functions and is more widely applicable; and the coiled tubing can be blown to avoid corrosion of residual liquid; and operation space is provided for the operator to make operation more convenient.

[0075] The embodiments of the application are described above in combination with the drawings, but the application is not limited to the above specific embodiments, the above specific embodiments are only illustrative but not restrictive, and those skilled in the art can make many forms under the inspiration of the application without departing from the scope of the application and the protection scope of the claims.

Claims

1. A wax removal vehicle, characterized in that, include: The vehicle chassis (100), heating device (200), first pressurization device (300), and manifold system; The heating device (200) and the first pressurizing device (300) are respectively disposed on the vehicle chassis (100); The manifold system includes an inlet pipe (910), an outlet pipe (920), and a first connecting pipe (930). The heating device (200) and the first pressurizing device (300) are connected through the first connecting pipe (930). The inlet pipe (910) is connected to the heating device (200), and the outlet pipe (920) is connected to the first pressurizing device (300). The wax removal vehicle also includes a second pressurizing device (400) disposed on the chassis (100), and the second pressurizing device (400) is disposed 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 after pressurization by the first pressurizing device (300) is higher than the pressure value of the fluid medium after pressurization by the second pressurizing device (400); The fluid medium flows into the second pressurizing device (400) through the inlet pipe (910) for primary pressurization. After primary pressurization, the fluid medium flows into the heating device (200) for heating. After heating, the fluid medium flows through the first connecting pipe (930) to the first pressurizing device (300) for secondary pressurization. The wax removal vehicle also includes a metering container (500) disposed on the chassis (100), and the manifold system also includes a fifth branch pipe (990), one end of the fifth branch pipe (990) is connected to the first connecting pipe (930), and the other end of the fifth branch pipe (990) is connected to the metering container (500); The wax removal vehicle also includes an air compressor (600), which is disposed on the chassis (100) and located at the rear of the chassis (100), with the outlet of the air compressor (600) facing the rear of the chassis (100); and / or, the wax removal vehicle also includes a control room (700) and a second pressurizing device (400) respectively disposed on the chassis (100), the metering container (500) being located at the rear of the heating device (200), the second... The second pressurizing device (400) is located at the lower part of the metering container (500) and connected to the metering container (500), and the control room (700) is located at the rear of the metering container (500); and / or, the first pressurizing device (300) is located at the rear of the chassis (100), and the outlet of the first pressurizing device (300) is arranged facing 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 wax removal vehicle also includes a transmission device (800), which includes a power take-off transfer case (810), multiple drive shafts, and an auxiliary gearbox (830). The chassis (100) includes a chassis engine (110) and a chassis gearbox (120) connected to the chassis engine (110). The power take-off transfer case (810) is connected to the chassis gearbox (120) via a first drive shaft (821). The auxiliary gearbox (830) is connected to the power take-off transfer case (810) via a second drive shaft (822). The first pressurizing device (300) is connected to the auxiliary gearbox (830) via a third drive shaft (823).

2. The wax removal vehicle according to claim 1, characterized in that, The manifold system also includes a first branch pipe (950), one end of which is connected to the first connecting pipe (930), and the other end of which is connected to the outlet pipe (920).

3. The wax removal vehicle according to claim 1, characterized in that, The manifold system also includes a second branch pipe (960), one end of which is connected to the inlet pipe (910), and the connection between the second branch pipe (960) and the inlet pipe (910) is located between the second pressurizing device (400) and the heating device (200). The other end of the second branch pipe (960) is connected to the first connecting pipe (930).

4. The wax removal vehicle according to claim 1, characterized in that, The manifold system also includes a third branch pipe (970), one end of which is connected to the inlet pipe (910), and the connection between the third branch pipe (970) and the inlet pipe (910) is located between the second pressurizing device (400) and the heating device (200). The other end of the third branch pipe (970) is connected to the outlet pipe (920).

5. The wax removal vehicle according to claim 1, characterized in that, The manifold system also includes a fourth branch pipe (980), one end of which is connected to the inlet pipe (910), and the connection between the fourth branch pipe (980) and the inlet pipe (910) is located between the second pressurizing device (400) and the heating device (200). The other end of the fourth branch pipe (980) is connected to the metering container (500).

6. The wax removal vehicle according to any one of claims 1 to 5, characterized in that, The manifold system also includes a second connecting pipe (940), one end of which is connected to the metering container (500), and the other end of which is connected to the inlet pipe (910). The connection between the second connecting pipe (940) and the inlet pipe (910) is close to the inlet port of the inlet pipe (910).

7. The wax removal vehicle according to claim 1, characterized in that, The wax removal vehicle also includes a transmission device (800), which further includes 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 to the first hydraulic pump (851) through oil circuits, and the third motor (863) and the fourth motor (864) are respectively connected to the second hydraulic pump (852) through oil circuits. The vehicle chassis (100) includes a chassis engine (110) and a chassis gearbox (120) that is driven by the chassis engine (110). The first hydraulic pump (851) is driven by the chassis gearbox (120) through the first power take-off (841), and the second hydraulic pump (852) is driven by the chassis gearbox (120) through the second power take-off (842).

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