Multi-machine and multi-pump cementing truck

Abstract

The application discloses a multi-machine and multi-pump well cementation vehicle, which comprises a transport vehicle, at least two sets of driving modules and a control console, the at least two sets of driving modules are arranged on the transport vehicle and are arranged independently, each set of driving module comprises an engine, a driving pump assembly, a motor assembly and a plunger pump, the engine drives the driving pump assembly, the driving pump assembly drives the motor assembly to drive the plunger pump to move, and the engines in all the driving modules are electrically connected with the control console. The at least two sets of independently arranged driving modules can independently complete the well cementation task, so that when the components in any driving module are damaged, the work does not need to be stopped for repair, only another complete driving module needs to be started to continue the well cementation task, and the damaged components can be repaired at the same time, time is saved, and the operation efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of cementing equipment technology, and in particular to a multi-machine, multi-pump cementing truck. Background Technology

[0002] With the emergence of horizontal wells and high-pressure wells, and the increasing demands of various working conditions such as well workover, the demand for cementing equipment is also increasing. Users need cementing equipment with stronger applicability to meet various construction conditions with different pressures and discharge rates.

[0003] Traditional cementing trucks use a single on-board engine to drive a hydraulic gearbox for mechanical transmission. This single power transmission path means that if any component fails, the entire vehicle needs to be shut down for repairs, wasting a lot of time, manpower, and resources, resulting in low operational efficiency. Summary of the Invention

[0004] The main objective of this invention is to provide a multi-machine, multi-pump cementing truck, which aims to solve the problem that existing cementing trucks have a single power transmission path and require the entire vehicle to be shut down for repairs when any component is damaged, resulting in low operational efficiency.

[0005] To achieve the above objectives, the present invention provides a multi-machine, multi-pump cementing truck, comprising:

[0006] Transport vehicle;

[0007] At least two drive modules are provided, and both drive modules are installed on the transport vehicle and are independently configured. Each drive module includes an engine, a drive pump assembly, a motor assembly, and a plunger pump. The engine drives the drive pump assembly, and the drive pump assembly drives the motor assembly to move the plunger pump.

[0008] The console is electrically connected to all the engines in the drive modules.

[0009] Preferably, the transport vehicle is equipped with a slurry mixing tank; in each of the drive modules, the drive pump assembly includes a water injection pump, a grouting pump, a stirring pump, and a plunger drive pump. The water injection pump is used to supply water to the slurry mixing tank, the stirring pump is used to stir the water and cement ash in the slurry mixing tank to form cement slurry, the grouting pump is used to extract the cement slurry in the slurry mixing tank and transport it to the plunger pump, and the plunger drive pump drives the motor assembly to move the plunger pump.

[0010] Preferably, the water injection pump, the grouting pump, the stirring pump, and the plunger drive pump are all connected to the engine by a drive structure. The drive structure includes a first drive pump and a first drive motor. The engine drives the first drive pump, and each first drive pump drives the corresponding water injection pump, the grouting pump, the stirring pump, or the plunger drive pump through its corresponding first drive motor.

[0011] Preferably, the engine is equipped with a plurality of transfer cases, the number of which is consistent with the number of drive pump assemblies and is set in a one-to-one correspondence. All the first drive pumps in each drive pump assembly are connected to the corresponding transfer case and driven by the transfer case.

[0012] Preferably, the transport vehicle is also equipped with a metering tank, which is connected to an external water source and to the mixing tank. The water injection pump is used to draw water from the metering tank to the mixing tank.

[0013] Preferably, a plurality of water injection pumps are arranged in parallel, and a first butterfly valve is provided between each of the plurality of water injection pumps and the metering tank; a plurality of grouting pumps are arranged in parallel, and a second butterfly valve is provided between each of the plurality of grouting pumps and the mixing tank; and a third butterfly valve is provided between each of the plurality of grouting pumps and the plunger pump.

[0014] Preferably, the transport vehicle is further provided with an auxiliary drive assembly, which includes an auxiliary drive component and an auxiliary drive pump. The auxiliary drive component is used to drive the auxiliary drive pump, and the auxiliary drive pump is used to drive any of the motor components.

[0015] Preferably, the auxiliary drive component is the chassis engine of the transport vehicle.

[0016] Preferably, the plunger drive pump and the auxiliary drive pump in each drive module are connected in parallel, and a ball valve is provided between the auxiliary drive pump and each plunger drive pump.

[0017] Preferably, a plurality of the engines are spaced apart on the transport vehicle, and each of the plurality of engines is provided with a heat dissipation module for cooling the engine.

[0018] In the technical solution of this invention, by setting at least two independently configured drive modules on the transport vehicle, each drive module includes an engine, a drive pump assembly, a motor assembly, and a plunger pump, each drive module can independently complete the cementing task. The drive modules are completely redundant and can independently complete the cementing task. If any component in any drive module is damaged, there is no need to stop work for repair. Just start another complete drive module to continue the cementing task. The damaged component can also be repaired during the operation, saving time and greatly improving the efficiency of the operation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the left-side structure of a multi-machine, multi-pump cementing truck according to an embodiment of the present invention;

[0021] Figure 2 This is a right-side structural schematic diagram of a multi-machine, multi-pump cementing truck according to an embodiment of the present invention;

[0022] Figure 3 This is a partial structural schematic diagram of a multi-machine, multi-pump cementing truck according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the drive structure of a multi-machine, multi-pump cementing truck according to an embodiment of the present invention;

[0024] Figure 5 This is a diagram showing the power transmission relationship of a multi-machine, multi-pump cementing truck according to an embodiment of the present invention;

[0025] Figure 6 This is a diagram of the slurry mixing pipeline for a multi-machine, multi-pump cementing truck according to an embodiment of the present invention.

[0026] Explanation of icon numbers:

[0027] label name label name 1 Multi-machine multi-pump cementing truck 24 plunger-driven pump 10 transport vehicle 25 Motor assembly 11 Auxiliary drive components 251 drive motor 20 driver module 26 plunger pump 21 engine 30 Auxiliary drive pump 211 Transfer case 40 console 212 Heat dissipation module 50 Mixing tank 22 Drive pump assembly 51 Metering tank 221 Water pump 60 ball valve 222 Grouting pump 61 First butterfly valve 223 Agitator pump 62 Second butterfly valve 23 Drive structure 63 Third butterfly valve

[0028] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Furthermore, in this invention, descriptions involving ", second, etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with ", second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible to those skilled in the art. If a combination of technical solutions contradicts each other or cannot be implemented, such a combination should be considered non-existent and not within the scope of protection claimed by the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0034] This invention proposes a multi-machine, multi-pump cementing truck 1.

[0035] Please combine Figure 1 , Figure 2 , Figure 3 and Figure 5The multi-machine multi-pump cementing truck 1 in this embodiment includes a transport vehicle 10, a control console 40, and at least two sets of drive modules 20. The at least two sets of drive modules 20 are all mounted on the transport vehicle 10 and are set independently of each other. Each set of drive modules 20 includes an engine 21, a drive pump assembly 22, a motor assembly 25, and a plunger pump 26. The engine 21 drives the drive pump assembly 22, and the drive pump assembly 22 drives the motor assembly 25 to drive the plunger pump 26 to move. The engine 21 in all drive modules 20 is electrically connected to the control console 40.

[0036] In the technical solution of the present invention, by setting at least two independently configured drive modules 20 on the transport vehicle 10, each drive module 20 includes an engine 21, a drive pump assembly 22, a motor assembly 25 and a plunger pump 26, so that each drive module 20 can independently complete the cementing task. Each drive module 20 is completely backed up and can independently complete the cementing task. If any component in any drive module 20 is damaged, there is no need to stop work for repair. Just start another complete drive module 20 to continue the cementing task. The damaged component can also be repaired at the same time as the operation, saving time and greatly improving the operation efficiency.

[0037] In one embodiment, the transport vehicle 10 is equipped with a slurry mixing tank 50; in each drive module 20, the drive pump assembly 22 includes a water injection pump 221, a slurry injection pump 222, a mixing pump 223 and a plunger drive pump 24. The water injection pump 221 is used to supply water to the slurry mixing tank 50, the mixing pump 223 is used to mix the water and cement ash in the slurry mixing tank 50 to form cement slurry, the slurry injection pump 222 is used to extract the cement slurry in the slurry mixing tank 50 and transport it to the plunger pump 26, and the plunger drive pump 24 drives the plunger pump 26 to move via the drive motor assembly 25.

[0038] By integrating the water injection pump 221, grouting pump 222, mixing pump 223, and grout mixing tank 50 onto the transport vehicle 10, the cement slurry can be automatically produced through the cooperation of each component. This eliminates the need to prepare cement slurry from external sources, reduces manual labor, lowers labor costs, improves control precision, and increases the efficiency of cementing operations.

[0039] Please combine Figure 1 , Figure 2 and Figure 5 Furthermore, each of the water injection pump 221, grouting pump 222, mixing pump 223, and plunger drive pump 24 is connected to the engine 21 by a drive structure 23. The drive structure 23 includes a first drive pump and a first drive motor 251. The engine 21 drives the first drive pump, and each first drive pump drives its corresponding water injection pump 221, grouting pump 222, mixing pump 223, or plunger drive pump 24 via its corresponding first drive motor 251. Understandably, the first drive pump is a hydraulic pump, and the first drive motor 251 is a hydraulic drive motor.

[0040] The water injection pump 221, grouting pump 222, mixing pump 223, and plunger drive pump 24 have different requirements for the speed and torque of the engine 21. Therefore, they cannot be directly connected to the engine 21. A drive structure 23 needs to be set between the engine 21 and the engine 24. Through the cooperation of the first drive pump and the first drive motor 251, the different components can be controlled separately. The engine 21 can provide different output power to different components, which improves efficiency and the control accuracy of different components.

[0041] Specifically, the first drive pump is a variable displacement pump, and the first drive motor 251 is a variable displacement motor. The variable displacement pump and motor provide higher control precision, infinitely adjustable displacement, and no shift shock, improving operational stability. Simultaneously, they can adjust the output power in real time according to actual conditions, improving energy utilization.

[0042] In one embodiment, the engine 21 is equipped with multiple transfer cases 211, the number of which corresponds to the number of drive pump assemblies 22. All first drive pumps in each drive pump assembly 22 are connected to and driven by their corresponding transfer cases 211. The transfer cases 211 allow the engine 21 to simultaneously drive four first drive pumps in a single drive pump assembly 22, achieving multi-output and improving energy efficiency. Furthermore, each first drive pump can be independently controlled, improving control precision. Driving with a single transfer case 211 simplifies the entire transmission system, reduces complexity and the number of components, lowers maintenance costs, and reduces space requirements and overall transmission system size.

[0043] In one embodiment, the motor assembly 25 includes a plurality of hydraulic motors spaced apart on the piston pump 26. The piston pump 26 typically requires high flow and high pressure, which a single hydraulic motor may struggle to provide sufficient power to meet. By using multiple hydraulic motors, the load can be distributed, with each motor handling a portion of the work, thereby collectively providing the required high flow and high pressure. This ensures even usage of each hydraulic motor, reducing excessive wear and extending their lifespan. Furthermore, even if one motor fails or requires maintenance, the system can continue operating, improving system reliability and continuous performance.

[0044] In one embodiment, the transport vehicle 10 is also equipped with a metering tank 51, which is connected to an external water source and a mixing tank 50. A water pump 221 is used to pump water from the metering tank 51 to the mixing tank 50. By filling the metering tank 51 with water and then supplying water to the mixing tank 50 through the metering tank 51, firstly, a portion of water can be stored to prevent water shortages in case of sudden water outages, and it can also be used in areas where it is not possible to connect to an external water source. Secondly, the metering tank 51 accurately measures the amount of water injected into the mixing tank 50, thereby accurately proportioning water and cement ash, ensuring that the produced cement slurry meets the standards, improving the quality of the cement slurry, and preventing water waste, thus improving resource utilization.

[0045] Please see Figure 5 Furthermore, multiple water injection pumps 221 are connected in parallel, and each of the multiple water injection pumps 221 is equipped with a first butterfly valve 61 between itself and the metering tank 51. Multiple grouting pumps 222 are connected in parallel, and each of the multiple grouting pumps 222 is equipped with a second butterfly valve 62 between itself and the mixing tank 50. Each of the multiple grouting pumps 222 is equipped with a third butterfly valve 63 between itself and the plunger pump 26. One water injection pump 221 and one grouting pump 222 constitute a set of slurry mixing equipment. Multiple sets of slurry mixing equipment are set up independently and do not interfere with each other. If one set fails, it does not affect the operation of the others, improving operational efficiency and reliability. At the same time, multiple sets of slurry mixing equipment can operate simultaneously, improving slurry preparation efficiency and thus increasing overall operational efficiency.

[0046] Please see Figure 6 After opening the first butterfly valve 61, the second butterfly valve 62, and the third butterfly valve 63 of one of the mixing systems, water flows out from the metering tank 51, passes through the first butterfly valve 61, enters the water supply pump, is pressurized by the water supply pump, and enters the mixing tank 50. Then, it is mixed with cement ash in the mixing tank 50 to form cement slurry. After the cement slurry is output from the mixing tank 50, it passes through the second butterfly valve 62 and enters the grouting pump 222 for pressurization. Then, it passes through the third butterfly valve 63 and is transported to the plunger pump 26.

[0047] Understandably, with two sets of drive modules, when the demand for cement slurry is low, one of the first butterfly valves 61, one of the second butterfly valves 62, and one of the third butterfly valves 63 can be closed. A water injection pump 221 and a grouting pump 222 can then be used to mix the slurry, which is then supplied to the plunger pump 26, reducing energy consumption. When the demand for cement slurry is high, all of the first butterfly valves 61, the second butterfly valves 62, and the third butterfly valves 63 can be opened, allowing both sets of mixing equipment to operate simultaneously, improving slurry preparation efficiency. When a component of one set of mixing equipment fails, its corresponding first butterfly valves 61, 62, and 63 can be closed, while the first butterfly valves 61, 62, and 63 of the other set of mixing equipment can be opened, ensuring the slurry preparation process is not interrupted and improving operational efficiency and reliability.

[0048] In one embodiment, the transport vehicle is further provided with an auxiliary drive assembly, which includes an auxiliary drive component 11 and an auxiliary drive pump 30. The auxiliary drive component 11 is used to drive the auxiliary drive pump 30, and the auxiliary drive pump 30 is used to drive any of the motor components 25.

[0049] Meanwhile, through the cooperation of the auxiliary drive component 11 and the auxiliary drive pump 30, precise control can still be achieved in small displacement operation, with high control accuracy and high resource utilization. Under high power output conditions, the auxiliary drive component 11 can assist any motor component 25 to supplement the power of the engine 21, thereby meeting higher power output requirements. There is no need to upgrade to a higher power engine 21 to increase output power, which greatly reduces costs. At the same time, for the existing engine 21, its power requirements can be reduced, costs can be reduced, and the size can be reduced, making the overall vehicle layout more flexible.

[0050] In one specific implementation, the auxiliary drive pump 30 is a hydraulic variable displacement motor.

[0051] Specifically, the auxiliary drive component 11 is the chassis engine of the transport vehicle 10.

[0052] By using the chassis engine of the transport vehicle 10 itself as an auxiliary drive component, there is no need to set up an additional auxiliary drive component 11 on the transport vehicle 10, which reduces costs. At the same time, since the chassis engine is located on the chassis of the transport vehicle 10, it does not occupy space on the transport vehicle 10, making the overall vehicle layout more flexible.

[0053] Furthermore, the plunger drive pump 24 in each drive module 20 is connected in parallel with the auxiliary drive pump 30, and a ball valve 60 is provided between the auxiliary drive pump 30 and each plunger drive pump 24. By providing the ball valve 60 between the auxiliary drive pump 30 and each plunger drive pump 24, and controlling the opening and closing of the ball valve 60, the system controls whether the auxiliary drive pump 30 is driven by the auxiliary drive component 11 to assist in driving one of the plunger drive pumps 24, thereby improving flexibility under high power output conditions.

[0054] When the power demand is normal, all ball valves 60 are closed, and one of the plunger drive pumps 24 drives the motor assembly 25 and drives the plunger pump 26 to work. When the power demand is high, one of the ball valves 60 can be opened, so that the auxiliary drive pump 30 assists in driving the motor assembly 25 to increase the output power and achieve high-power operation of the plunger pump 26.

[0055] In one embodiment, multiple engines 21 are spaced apart on the transport vehicle 10, and each engine 21 is equipped with a heat dissipation module 212 on its top for cooling the engine 21. During operation, the engines 21 generate a large amount of heat. If not cooled, the temperature will rise, potentially causing overheating and damage. Therefore, a heat dissipation module 212 is installed on each engine 21 to dissipate heat, prevent damage, extend service life, and maintain a suitable temperature, thereby improving engine efficiency, increasing fuel utilization, and saving costs.

[0056] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A multi-machine, multi-pump cementing truck, characterized in that, include: Transport vehicle; At least two drive modules are provided, and both drive modules are installed on the transport vehicle and are independently configured. Each drive module includes an engine, a drive pump assembly, a motor assembly, and a plunger pump. The engine drives the drive pump assembly. The console, to which all the engines in the drive modules are electrically connected; The transport vehicle is equipped with a slurry mixing tank; in each of the drive modules, the drive pump assembly includes a water injection pump, a grouting pump, a mixing pump, and a plunger drive pump. The water injection pump is used to supply water to the slurry mixing tank, the mixing pump is used to mix the water and cement ash in the slurry mixing tank to form cement slurry, the grouting pump is used to extract the cement slurry in the slurry mixing tank and transport it to the plunger pump, and the plunger drive pump drives the motor assembly to move the plunger pump. Multiple water injection pumps are connected in parallel, multiple grouting pumps are connected in parallel, one water injection pump and one grouting pump form a grout mixing device, and multiple grout mixing devices are set up independently.

2. The multi-machine, multi-pump cementing truck as described in claim 1, characterized in that, The water injection pump, the grouting pump, the stirring pump, and the plunger drive pump are all connected to the engine by a drive structure. The drive structure includes a first drive pump and a first drive motor. The engine drives the first drive pump, and each first drive pump drives the corresponding water injection pump, grouting pump, stirring pump, or plunger drive pump through its corresponding first drive motor.

3. The multi-machine, multi-pump cementing truck as described in claim 2, characterized in that, The engine is equipped with multiple transfer cases, the number of which is the same as the number of drive pump assemblies and is set in a one-to-one correspondence. All the first drive pumps in each drive pump assembly are connected to the corresponding transfer case and driven by the transfer case.

4. The multi-machine, multi-pump cementing truck as described in claim 1, characterized in that, The transport vehicle is also equipped with a metering tank, which is connected to an external water source and to the mixing tank. The water pump is used to draw water from the metering tank to the mixing tank.

5. The multi-machine, multi-pump cementing truck as described in claim 4, characterized in that, A first butterfly valve is provided between each of the multiple water injection pumps and the metering tank, a second butterfly valve is provided between each of the multiple grouting pumps and the mixing tank, and a third butterfly valve is provided between each of the multiple grouting pumps and the plunger pump.

6. The multi-machine, multi-pump cementing truck as described in claim 1, characterized in that, The transport vehicle is also equipped with an auxiliary drive assembly, which includes an auxiliary drive component and an auxiliary drive pump. The auxiliary drive component is used to drive the auxiliary drive pump, and the auxiliary drive pump is used to drive any of the motor components.

7. The multi-machine, multi-pump cementing truck as described in claim 6, characterized in that, The auxiliary drive component is the chassis engine of the transport vehicle.

8. The multi-machine, multi-pump cementing truck as described in claim 6, characterized in that, The plunger drive pump and the auxiliary drive pump in each drive module are connected in parallel, and a ball valve is provided between the auxiliary drive pump and each plunger drive pump.

9. The multi-machine, multi-pump cementing truck as described in any one of claims 1-6, characterized in that, Multiple engines are spaced apart on the transport vehicle, and each of the multiple engines is provided with a heat dissipation module on its top for cooling the engine.

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