Explosion-proof control box body applied to on-line viscosity monitoring of drilling fluid

Abstract

The utility model discloses an anti-explosion control box body applied to on-line viscosity monitoring of drilling fluid, and the anti-explosion control box body can realize the functions of monitoring the drilling fluid in real time and controlling related equipment through all parts integrated in the anti-explosion box body. The device comprises a stepping driver, a PLC controller, a wireless transmission module, a motor controller and a circuit breaker which are all arranged in an explosion-proof box body, the PLC controller is connected with the stepping driver, the wireless transmission module, the motor controller and the circuit breaker, the explosion-proof box body is provided with connecting ports, the connecting ports are all connected with the PLC controller, and the PLC controller is connected with the wireless transmission module. The stepping driver is used for being connected with an external rotating motor, the motor controller is connected with an external sampling circulating pump, the PLC outputs a control instruction and controls the rotating motor to rotate through the control instruction so as to collect detection information, and the PLC detects the viscosity of the drilling fluid on line according to the detection information.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of oil drilling, and particularly relates to an explosion-proof control box body applied to online viscosity monitoring of drilling fluid. BACKGROUND

[0002] In oil drilling operation, the viscosity of drilling fluid is an important parameter, and the data of the viscosity is directly related to drilling efficiency, well wall stability and drilling cost. In order to control and adjust the viscosity of drilling fluid and ensure that the drilling fluid meets the requirements of different drilling stages, real-time online viscosity monitoring of the drilling fluid has become a demand in the industry. At present, a six-speed rotary viscometer commonly used in a laboratory, as a kind of precise measuring instrument, provides an effective means for accurate determination of the viscosity of drilling fluid.

[0003] The six-speed rotary viscometer mainly comprises core components such as a motor, a rotor, a measuring head, a display screen, a button and the like, and its working principle is based on driving the outer cylinder to rotate by the motor. When the drilling fluid to be measured acts on the inner cylinder, a torque is generated, causing the inner cylinder connected with the torsional spring to be deflected. According to Newton's internal friction law, the deflection angle of the inner cylinder at a specific shear rate is in a proportional relationship with the viscosity of the liquid, so that the viscosity value of the liquid is indirectly obtained by measuring the rotation angle of the inner cylinder. This method has high measurement accuracy and reliability in a laboratory environment.

[0004] However, although the six-speed rotary viscometer performs well under laboratory conditions, in actual industrial production environment, especially in a drilling site, the traditional six-speed rotary viscometer is manually operated, so that the viscosity change in the drilling process cannot be reflected in time, the demand for real-time monitoring cannot be met, and the working efficiency of drilling cannot be improved. CONTENT OF THE INVENTION

[0005] The application provides an explosion-proof control box body applied to online viscosity monitoring of drilling fluid, which is used to solve the above technical problems.

[0006] The application provides an explosion-proof control box body applied to online viscosity monitoring of drilling fluid, which comprises an explosion-proof box body, a stepping driver, a PLC controller, a wireless transmission module, a motor controller, a circuit breaker and a connection port.

[0007] The stepping driver, the PLC controller, the wireless transmission module, the motor controller and the circuit breaker are arranged in the explosion-proof box body, the PLC controller is connected with the stepping driver, the wireless transmission module, the motor controller and the circuit breaker respectively, the connection port is arranged on the explosion-proof box body, and the connection port is connected with the PLC controller.

[0008] The step drive is used for connecting with an external rotary motor, the motor controller is connected with an external sampling circulating pump, the PLC controller outputs a control instruction, and controls the rotary motor to rotate to collect detection information according to the control instruction, and the PLC controller obtains the viscosity of the drilling fluid according to the detection information.

[0009] Optionally, the circuit breaker, the wireless transmission module, the motor controller and the power switch are arranged on one side of the inside of the explosion-proof box body, the wireless transmission module is arranged on one side of the circuit breaker, the circuit breaker is arranged above the power switch, and the wireless transmission module is arranged above the power switch.

[0010] Optionally, the power switch is arranged on one side of the motor controller.

[0011] Optionally, the step drive, the PLC controller and the power supply are arranged on the other side of the inside of the explosion-proof box body, the step drive is arranged on one side of the power supply, and the PLC controller is arranged below the step drive and the power supply.

[0012] Optionally, a plurality of openings are arranged on the outside of the explosion-proof box body, the plurality of openings are arranged around the explosion-proof box body, and the connection port is arranged in the opening.

[0013] Optionally, the power supply is connected with the power switch.

[0014] Optionally, the PLC controller exchanges data and controls the motor controller and the step drive through a modbus RTU protocol.

[0015] Optionally, the PLC controller is connected with an external matching valve through the connection port.

[0016] Optionally, the step drive, the PLC controller, the wireless transmission module, the motor controller and the circuit breaker are connected with the power supply.

[0017] Optionally, an information collection module is arranged in the inside of the explosion-proof box body, and the information collection module is connected with the PLC controller.

[0018] From the above technical solutions, the application has the following advantages:

[0019] 1. The explosion-proof control box integrates a stepper driver, a PLC controller, a wireless transmission module, and a motor controller. The PLC controller automatically issues control commands to drive the external stepper driver and rotary motor to perform viscosity measurement without manual operation. This not only greatly reduces the labor intensity of workers but also avoids errors caused by human operation, improving measurement accuracy and efficiency.

[0020] 2. It can receive and process the detection information collected by the rotary motor in real time, thereby calculating the viscosity value of the drilling fluid, and transmit the data to the remote monitoring center or operating platform in real time via a wireless transmission module. This allows for immediate feedback on viscosity changes during the drilling process, providing data support for drilling operations, facilitating timely adjustments to drilling parameters, and achieving automatic monitoring functions. This, in turn, optimizes the drilling process and improves work efficiency.

[0021] 3. The explosion-proof enclosure ensures safe operation in high-risk, flammable and explosive drilling environments. Electronic components and controllers are enclosed in the explosion-proof enclosure, effectively isolating dangerous factors from the external environment and ensuring the safety of the equipment.

[0022] 4. The explosion-proof enclosure integrates components such as stepper drivers, PLC controllers, wireless transmission modules, motor controllers, and circuit breakers, achieving a high degree of integration. The modular design facilitates installation, maintenance, and upgrades, reducing later operation and maintenance costs while also improving overall reliability and stability.

[0023] 5. Through the various components integrated within the explosion-proof enclosure, the functions of real-time monitoring and control of drilling fluid and related equipment can be realized. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the internal structure of an explosion-proof control box for online viscosity monitoring of drilling fluid, provided in this application. Detailed Implementation

[0025] To address the aforementioned technical problems, this application provides a wastewater trough for collecting and storing wastewater, facilitating maintenance and repair by staff.

[0026] In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and other terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to describe the relative positional relationship between the components or parts and do not specifically limit the specific installation orientation of each component or part.

[0027] And, the above-mentioned partial terms, in addition to can be used to express the orientation or position relationship, can also be used to express other meanings, for example, the term "upper" may also be used to express a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in this application can be understood according to the specific circumstances.

[0028] In addition, the terms "mounting", "setting", "provided with", "connection", "connected" should be broadly understood. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate media, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0029] In addition, the structure, proportion, size, etc. drawn in the drawings in this application are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to define the limited conditions that can be implemented by this application, so they do not have technical substantive significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and the purpose that can be achieved by this application, still falls within the scope of the technical content disclosed by this application.

[0030] The technical solutions in this application will be described clearly and completely in the following combined with the drawings in this application. Obviously, the described embodiments are only a part of the embodiments of this application, not all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of this application.

[0031] Please refer to Figure 1The application provides an explosion-proof control box applied to drilling fluid online viscosity monitoring, including: an explosion-proof box body 1, a stepping drive 3, a PLC controller 8, a wireless transmission module 2, a motor controller, a circuit breaker 4 and a connection port 6; the stepping drive 3, the PLC controller 8, the wireless transmission module 2, the motor controller and the circuit breaker 4 are all arranged in the explosion-proof box body 1, the PLC controller 8 is connected with the stepping drive 3, the wireless transmission module 2, the motor controller and the circuit breaker 4 respectively, the connection port 6 is arranged on the explosion-proof box body 1, and the connection port 6 is connected with the PLC controller 8; the stepping drive 3 is used for being connected with an external rotary motor, the motor controller is connected with an external sampling circulating pump, the PLC controller 8 outputs a control instruction and controls the rotary motor to rotate to collect detection information, and the viscosity of drilling fluid is obtained according to the detection information.

[0032] Firstly, the functions and effects of various components are described:

[0033] The explosion-proof box body 1 is made of explosion-proof material, can withstand the extreme temperature, pressure and potential explosive gas environment that may be encountered in the drilling site, can not only protect the internal electronic equipment from physical damage such as impact, vibration, etc., but also can prevent the spark or high temperature generated by the internal electrical elements from causing explosion, so as to provide a safe and stable working environment for the whole viscosity monitoring process.

[0034] The stepping drive 3 receives pulse signals from the PLC controller 8 and controls the rotation angle, speed and direction of the rotary motor according to the signals, so as to ensure that the rotary motor rotates according to the corresponding rotation angle, speed and direction, thereby meeting the requirements of viscosity measurement. Through accurate control of the movement of the rotary motor, the stepping drive 3 provides stable and reliable driving force for viscosity measurement.

[0035] The PLC controller 8 is the control core, is responsible for receiving and sending control instructions, receiving and processing detection signals from the rotary motor, and calculating the viscosity value of drilling fluid. The PLC controller 8 realizes automatic control, improves the measurement efficiency, and at the same time, through accurate calculation and logical judgment, ensures the accuracy of viscosity measurement.

[0036] The wireless transmission module 2 is responsible for transmitting the viscosity value calculated by the PLC controller 8 and other related data to the remote monitoring center or operation platform through the wireless network, wherein the wireless transmission module 2 supports multiple wireless communication protocols and can ensure the safety and stability of data in the transmission process.

[0037] The wireless transmission module 2 realizes real-time transmission of data and remote monitoring, so that the viscosity change of the drilling site can be known by remote personnel in time, thereby helping to discover problems in time and take measures, improving the efficiency and safety of drilling operations.

[0038] Motor controller: The motor controller is responsible for controlling the operation of the sampling circulating pump, starting, stopping or adjusting the working state of the sampling circulating pump according to the instructions of the PLC controller 8, and ensuring that the drilling fluid can continuously and stably flow into the viscosity measurement area.

[0039] Circuit breaker 4: The circuit breaker 4 is a protection device that automatically cuts off the power 7 when abnormal conditions such as overload, short circuit or leakage occur in the circuit, preventing the current from continuing to flow and preventing equipment damage or personnel injury.

[0040] Connection port 6: The connection port 6 is an interface between the system and external devices, and realizes the signal and data transmission channel between the external devices such as the rotary motor and the sampling circulating pump and the PLC controller 8 through the connection port 6. The connection port 6 can conveniently connect external devices of different models and specifications to meet the diversified needs of the drilling site.

[0041] Overall working principle:

[0042] When the system starts, the PLC controller 8 first performs self-checking to check whether each component is working normally, and then initializes the working state of each component, such as the speed of the rotary motor and the working frequency of the sampling circulating pump. After that, the motor controller starts the sampling circulating pump according to the instructions of the PLC controller 8, the sampling circulating pump introduces the drilling fluid from the drilling site into the viscosity measurement area, and maintains the flow state of the drilling fluid through the circulating pipeline, ensuring the continuity and accuracy of viscosity measurement.

[0043] Then the PLC controller 8 sends control instructions to the stepper driver 3 to drive the rotary motor to rotate at a set speed and angle in the drilling fluid. When the rotary motor drives the viscometer rotor to rotate, it will be affected by the resistance of the drilling fluid. This resistance signal is converted into an electrical signal and transmitted back to the PLC controller 8.

[0044] After receiving the electrical signal from the rotary motor, the PLC controller 8 calculates the viscosity value of the drilling fluid according to the pre-set algorithm and model. The calculated viscosity value and other related data are sent to the remote monitoring center or operation platform through the wireless transmission module 2. Remote personnel can view the viscosity change of the drilling fluid in real time through computer, mobile phone and other terminal devices.

[0045] Therefore, the application applied to the explosion-proof control box for online viscosity monitoring of drilling fluid can realize real-time and automatic monitoring of the viscosity of the drilling fluid through the cooperative work of various components, which not only solves the technical defects of the traditional six-speed rotary viscometer in the application of the drilling site, but also provides a more efficient and safe monitoring method for drilling operations.

[0046] Optionally, the circuit breaker 4, the wireless transmission module 2, the motor controller and the power 7 switch 5 are arranged on one side in the explosion-proof box 1, the wireless transmission module 2 is arranged on one side of the circuit breaker 4, the circuit breaker 4 is arranged above the power 7 switch 5, the wireless transmission module 2 is arranged above the power 7 switch 5, and the power 7 switch 5 is arranged on one side of the motor controller.

[0047] In the embodiment of the application, the circuit breaker 4, the wireless transmission module 2, the motor controller and the power 7 switch 5 are arranged on one side in the explosion-proof box 1, and through the above layout, the convenience of maintenance can be effectively improved, and each component is protected by the explosion-proof box 1.

[0048] The circuit breaker 4 is arranged above the power 7 switch 5, so that when an abnormal condition such as overload or short circuit occurs in the circuit, the circuit breaker 4 can quickly cut off the power 7 to protect the power 7 switch 5 below and the entire circuit from damage.

[0049] The wireless transmission module 2 is arranged on one side of the circuit breaker 4, which not only ensures the stable and reliable communication connection between the wireless transmission module 2 and the PLC controller 8, but also avoids interference with the circuit breaker 4.

[0050] Optionally, the step-by-step driver 3, the PLC controller 8 and the power 7 are arranged on the other side in the explosion-proof box 1, the step-by-step driver 3 is arranged on one side of the power 7, and the PLC controller 8 is arranged below the step-by-step driver 3 and the power 7.

[0051] In the embodiment of the application, the step-by-step driver 3, the PLC controller 8 and the power 7 are also arranged on the other side in the explosion-proof box 1, and the power 7 is connected with the power 7 switch 5, which helps to separate components with different functions, reduce interference between them, and also helps to dissipate heat and maintain.

[0052] Optionally, a plurality of openings are arranged outside the explosion-proof box 1, the plurality of openings are arranged around the explosion-proof box 1, and the connection port 6 is arranged in the opening.

[0053] In the embodiments of the present application, the plurality of openings on the outside of the explosion-proof box body 1 are for facilitating the assembly of the connection port 6, so that the external device or cable can be connected with the components inside the box through the connection port 6, wherein the type and specification of the connection port 6 can be set according to the actual situation, such as a power supply 7 socket, a signal interface, a data line interface, etc., which are not specifically limited here.

[0054] Optionally, the PLC controller 8 exchanges data and controls the motor controller and the stepper driver 3 through the modbus RTU protocol.

[0055] In the embodiments of the present application, the PLC controller 8 as the master device is connected with the two slave devices of the motor controller and the stepper driver 3, and the data exchange and control through the Modbus RTU protocol is an effective way to realize the communication between the PLC controller 8 and the motor controller and the stepper driver 3, which not only can ensure the reliability and stability of the communication, but also can reduce the cost and complexity of the system, thereby improving the performance and reliability of the entire drilling fluid online viscosity monitoring system.

[0056] Optionally, the PLC controller 8 is connected with the external matching valve through the connection port 6.

[0057] In the embodiments of the present application, the connection port 6 is an interface for the physical connection and data exchange between the explosion-proof control box and the external components, allowing the PLC controller 8 to establish a communication link with the matching valve, so as to realize the control of the external device or receive the signal from the external device.

[0058] The stepper driver 3, the PLC controller 8, the wireless transmission module 2, the motor controller and the circuit breaker 4 are all connected with the power supply 7, and the power supply 7 provides power for the stepper driver 3, the PLC controller 8, the wireless transmission module 2 and the motor controller.

[0059] The information acquisition module is installed inside the explosion-proof box body 1 and is connected with the PLC controller 8, and is used to acquire external information such as temperature and pressure, which are not specifically limited here.

[0060] It should be noted that the above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the scope of the present application. Therefore, the present application should not be limited to the embodiments shown herein, but should be consistent with the widest scope of principles and novel features disclosed herein.

Claims

1. An explosion-proof control box applied to online viscosity monitoring of a drilling fluid, characterized in that, Include: Explosion-proof box, stepper driver, PLC controller, wireless transmission module, motor controller, circuit breaker and connection port; The stepper driver, the PLC controller, the wireless transmission module, the motor controller and the circuit breaker are arranged in the explosion-proof box, the PLC controller is connected with the stepper driver, the wireless transmission module, the motor controller and the circuit breaker respectively, the explosion-proof box is provided with the connection port, and the connection port is connected with the PLC controller; The stepper driver is used for being connected with an external rotary motor, the motor controller is connected with an external sampling circulating pump, the PLC controller outputs a control instruction, and rotates the rotary motor to collect detection information through the control instruction, and the PLC controller detects the viscosity of drilling fluid according to the detection information.

2. The explosion-proof control box applied to online viscosity monitoring of a drilling fluid according to claim 1, characterized in that, The circuit breaker, the wireless transmission module, the motor controller and the power switch are arranged on one side of the explosion-proof box, the wireless transmission module is arranged on one side of the circuit breaker, the circuit breaker is arranged above the power switch, and the wireless transmission module is arranged above the power switch.

3. The explosion-proof control box applied to online viscosity monitoring of a drilling fluid according to claim 2, characterized in that, The power switch is arranged on one side of the motor controller.

4. The explosion-proof control box applied to online viscosity monitoring of a drilling fluid according to claim 3, characterized in that, The stepper driver, the PLC controller and the power supply are arranged on the other side of the explosion-proof box, the stepper driver is arranged on one side of the power supply, and the PLC controller is arranged below the stepper driver and the power supply.

5. The explosion-proof control box applied to online viscosity monitoring of a drilling fluid according to claim 4, characterized in that, The explosion-proof box is provided with a plurality of openings, the plurality of openings are arranged around the explosion-proof box, and the connection port is arranged in the opening.

6. The explosion-proof control box applied to online viscosity monitoring of a drilling fluid according to claim 5, characterized in that, The power supply is connected with the power switch.

7. The explosion-proof control box applied to online viscosity monitoring of a drilling fluid according to claim 1, characterized in that, The PLC controller exchanges data with the motor controller and the stepper driver through the modbusRTU protocol and controls.

8. The explosion-proof control box applied to online viscosity monitoring of a drilling fluid according to claim 1, characterized in that, The PLC controller is connected with an external matching valve through the connection port.

9. The explosion-proof control box applied to online viscosity monitoring of a drilling fluid according to claim 4, characterized in that, The stepper driver, the PLC controller, the wireless transmission module, the motor controller and the circuit breaker are connected with the power supply.

10. The explosion-proof control box applied to online viscosity monitoring of a drilling fluid according to any one of claims 1 to 9, characterized in that, An information acquisition module is mounted in the explosion-proof box, and the information acquisition module is connected with the PLC controller.

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