Automatic drilling fluid preparing and conveying system

Abstract

The utility model relates to the technical field of oil and gas field drilling fluid preparation equipment, in particular to an automatic drilling fluid preparation and conveying system, which is characterized in that a mixing unit comprises a mud tank, a feeding hopper, a conveying pump and an electric control valve, and a storage unit comprises a solid material storage unit, a liquid material storage unit and a drilling fluid storage unit, the power conveying unit comprises a conveying pump and an electric control valve, the medicine storage unit comprises a vertical storage tank, a chemical medicine barrel, a fan and a diaphragm pump, the drilling fluid performance monitoring system comprises a constant flow pump, a filter, a flow meter, a capillary tube and a PH measuring instrument, and the main control system comprises a central processing unit, an input and output port, a control system and a display. According to the utility model, automatic configuration, automatic monitoring, conveying and storage of the drilling fluid are realized, meanwhile, the original drilling fluid circulation process is upgraded, and the automation level of the drilling fluid configuration system is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the configuration equipment technical field of oil and gas field drilling fluid, specifically is a kind of automatic drilling fluid configuration and conveying system. BACKGROUND

[0002] At present, the configuration of drilling fluid, the addition of chemical materials, the measurement of drilling fluid performance parameters are completed by manual, and the conveying and storage process also needs manual to operate the opening and closing of equipment and valve, especially the distribution of equipment and valve in the solid control system is relatively dispersed, the number of valve is more, the labor intensity is big, and the operation efficiency is low. When six-speed viscometer is used to measure drilling fluid parameter, it needs half an hour to complete a measurement cycle, and the measurement data is discontinuous, and the accuracy is greatly influenced by operator or external factors. Therefore, it is necessary to improve the automation level of drilling fluid configuration and parameter measurement process, improve the operation efficiency, and also be beneficial to the management and control of on-site equipment. CONTENT OF UTILITY MODEL

[0003] In view of the above problems, the utility model provides a kind of automatic drilling fluid configuration and conveying system, solves the practical problems such as the high labor intensity of on-site operation feeding, the complex and discontinuous measurement process and the many on-site operation personnel.

[0004] The technical solution adopted by the utility model to solve its technical problems is: an automated drilling fluid configuration and delivery system, including a mixing unit, a storage unit, a power delivery unit, a drug storage unit, a drilling fluid performance monitoring system and a main control system, the mixing unit including a mud tank, a feeding funnel, a delivery pump and an electric control valve and necessary process pipelines, all components are integrated on a transport unit, and connectors with corresponding storage units are reserved for delivery of drilling fluid, the storage unit including a solid material storage unit, a liquid material storage unit and a drilling fluid storage unit and necessary process pipelines, all components are integrated on a transport unit, and connectors with corresponding mixing units and other storage units are reserved for delivery and storage of drilling fluid, the power delivery unit including a delivery pump and an electric control valve and necessary process pipelines, which are mainly used to deliver the configured drilling fluid to the storage unit or the drilling pump suction unit, the drug storage unit including The system includes vertical storage tanks, chemical barrels, a fan, a diaphragm pump, and necessary process pipelines. The fan is used to add solid materials from the vertical storage tank to the feeding funnel, completing the addition of solid chemicals; the diaphragm pump is used to add liquid materials from the chemical barrel to the feeding funnel, completing the addition of liquid chemicals. The drilling fluid performance monitoring system includes a constant flow pump, a filter, a flow meter, a capillary tube, a pH meter, and other instruments and meters for real-time measurement of drilling fluid performance parameters such as liquid level, density, viscosity, pH value, and particle concentration, and transmits these parameters to the main control system. The main control system includes a central processing unit, input and output ports, a control system, and a display. It receives signals from other units, compares them with target values ​​preset by the central processing unit, and outputs models to control the actions of devices and actuators, achieving fully automated and intelligent operation. Pipelines are installed between the mixing unit, storage unit, power transmission unit, and chemical storage unit. It primarily involves the automatic control of the configuration, mixing, monitoring, and delivery of drilling fluid in oil and gas fields. During the operation, the performance parameters of the drilling fluid in the mixing area, such as the liquid level, density, viscosity, pH value, particle concentration, etc., are monitored in real time and transmitted to the main control system. By comparing with the pre-set target value, a feedback signal is output to control the corresponding equipment and valve action, and the configured drilling fluid is discharged into the storage area. At the same time, the drilling fluid in the original mixing area is reconfigured, and the power delivery equipment of each added material also works synchronously to realize the automatic configuration and delivery of the drilling fluid. The advantage of the present utility model is that it realizes the automatic configuration, automatic monitoring, delivery and storage of drilling fluid. The operation process does not require manual loading and manual measurement, and realizes automatic control of drilling fluid configuration. The main control system can also be integrated with the drilling rig control system and transmit data. According to the drilling operation requirements and the drilling fluid expert system, the appropriate drilling fluid performance parameters are determined and the signal transmission is completed.

[0005] As an optimization, the controllers for the mixing unit, storage unit, power delivery unit, and drug storage unit are all integrated into the main control system, and the storage unit is located adjacent to the mixing unit. Both the mixing unit and storage unit feature a modular and standardized design for oil production, with consistent external connection dimensions. This allows for the addition of mixing units and storage units of the same specifications to accommodate drilling rigs of varying specifications, allowing for the configuration and storage of larger drilling fluid volumes. The power delivery equipment and valves within the mixing unit, storage unit, power delivery unit, and drug storage unit are all electronically controlled, with the controllers integrated into the control room.

[0006] As an optimization, the mixing unit is connected to the drilling fluid performance monitoring system for real-time measurement of various drilling fluid properties. The mixing unit is unique and is connected to the power delivery unit and the chemical storage unit to add chemicals and complete the configuration of the drilling fluid.

[0007] As an optimization, the storage unit is connected to the power delivery unit to deliver drilling fluid to a designated mud tank. The storage unit is expandable, and the storage tank is used only to store configured drilling fluid. It is connected to the power delivery unit to deliver drilling fluid to a designated mud tank, where it is pumped to the bottom of the well by a mud pump, completing the bending drilling operation cycle.

[0008] As an optimization, the power delivery unit includes a bracket and delivery pipelines, on which are mounted electrical cables, data cables, and signal cables. Furthermore, the delivery brackets adopt a modular and standardized design, and any two delivery brackets can be quickly connected to increase the delivery length and match the mixing unit and storage unit.

[0009] As an optimization, the solid material storage unit includes a plurality of vertical storage tanks, and weighing sensors are provided below the vertical storage tanks.

[0010] As an optimization, the liquid material storage unit includes several chemical barrels, and flow meters and liquid level meters are provided on the outside of the chemical barrels.

[0011] As an optimization, the pipeline includes a weighting pump No. 1, a weighting pump No. 2, a feeding funnel No. 1, a feeding funnel No. 2, a suction isolation valve, a discharge isolation valve No. 1 and a discharge isolation valve No. 2 connected to the mixing unit, and a delivery pump is provided on the delivery pipeline on the power delivery unit.

[0012] As an optimization, the drilling fluid storage unit includes a drilling fluid storage tank, the interior of the drilling fluid storage tank is provided with a mud tank and an agitator, the bottom is provided with a flushing pipeline, and the outside is provided with a suction control valve and a discharge control valve.

[0013] As an optimization, the drilling fluid performance monitoring system includes an integrated control room connected to the mixing unit, a mixing pump is provided outside the mixing unit, and a constant flow pump, a flushing port and a sewage outlet are provided inside the integrated control room.

[0014] The beneficial effects of the present invention are as follows: the present invention provides an automated drilling fluid configuration and delivery system that solves practical problems such as high labor intensity during on-site material addition, complex and discontinuous measurement processes, and a large number of on-site operators, thereby reducing risks caused by human factors and external environmental factors, and achieving automatic configuration, automatic monitoring, delivery, and storage of drilling fluid. At the same time, it also upgrades the original drilling fluid circulation process and improves the automation level of the drilling fluid configuration system. It mainly involves the automatic control of the configuration, mixing, monitoring, and delivery of drilling fluid in oil and gas fields. During operation, the performance parameters of the drilling fluid in the mixing area, such as the liquid level, density, viscosity, pH value, and particle concentration, are monitored in real time and transmitted to the main control system. By comparing with pre-set target values, feedback signals are output to control the corresponding equipment and valve operations, discharging the configured drilling fluid into the storage area. At the same time, the original mixing area is reconfigured for drilling fluid, and the power delivery equipment for each added material also operates synchronously, achieving automatic configuration and delivery of drilling fluid. The utility model has the advantages of realizing automatic configuration, automatic monitoring, transportation and storage of drilling fluid, and does not require manual loading and manual measurement during the operation process, thereby realizing automatic control of drilling fluid configuration.

[0015] (1) Automatic control of the drilling fluid configuration process is achieved, including real-time display of the process, addition of chemicals, drilling fluid transportation, and the volume of drilling fluid in the storage unit, which reduces the labor intensity of workers and improves the on-site HSE level.

[0016] (2) Realize the real-time measurement, display and storage of drilling fluid performance parameters during the drilling fluid configuration process, and improve data reliability.

[0017] (3) Realize integrated control and display of all equipment, control valves, instruments and meters, and visualize the operation process.

[0018] (4) Automated data collection and transmission, online diagnosis of equipment based on collected data, and generation of diagnostic records.

[0019] (5) The system can be expanded and superimposed. By increasing the number of storage units, the volume of drilling fluid in the storage unit can be increased, matching drilling rigs of more specifications, and realizing product standardization and automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attachment Figure 1 This is a schematic diagram of the top structure of the utility model:

[0021] Among them, 1- solid material storage unit; 2- liquid material storage unit; 3- integrated control room; 4- feeding funnel; 5- weighting pump; 6- mixing unit; 7- agitator; 8- drilling fluid storage unit; 9- power transmission unit;

[0022] Attachment Figure 2 This is a schematic diagram of the pipeline flow of the utility model:

[0023] Among them, 11-1 weighted pump; 12-2 weighted pump; 13-1 feeding funnel; 14-2 feeding funnel; 15-mixing unit; 16-reserve unit; 17-power transmission unit; 18-transmission pump; 1A1-suction isolation valve; 1A2-1 discharge isolation valve; 1A3-2 discharge isolation valve;

[0024] Attachment Figure 3 This is a schematic diagram of the control system of the utility model;

[0025] Attachment Figure 4 This is a schematic diagram of the top view of a conventional mud storage tank:

[0026] Among them, 21-mud tank; 22-agitator; 23-in-tank slurry suction butterfly valve (manual); 24-tank top slurry discharge butterfly valve (manual); 25-in-tank slurry suction butterfly valve (manual); 26-in-tank balancing butterfly valve (manual); 27-tank top slurry discharge butterfly valve (manual);

[0027] Attachment Figure 5 This is a schematic diagram of the top view of the mud storage tank of the utility model:

[0028] Among them, 21A-mud tank; 22A-agitator; 23A-flushing pipeline inside the tank; 24A-slurry suction butterfly valve outside the tank (electric); 25A-slurry discharge butterfly valve outside the tank (electric);

[0029] Attachment Figure 6 Schematic diagram of the online monitoring process of drilling fluid parameters in this utility model:

[0030] Among them, 31-mixing pump; 32-feeding funnel; 33-constant flow pump; 34-material addition; 35-flushing port; 36-drain port; 37-feedback input signal; 38-control output signal; 39-mixing unit; 310-integrated control room. DETAILED DESCRIPTION

[0031] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] For the convenience of description, if the words "up", "down", "left" and "right" appear in this utility model, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the present utility model.

[0034] like Figure 4 As shown in the figure, this is a schematic diagram of a conventional drilling fluid storage tank and flow chart. The tank has numerous and dispersed valves, with high- and low-level valves having different functions. Even if the valves are replaced with electric valves, each electric valve has a signal transmission line that is scattered throughout the mud tank, making true automation difficult.

[0035] like Figure 5 As shown, this is a schematic diagram of the drilling fluid storage tank and flow chart of the present invention. Only the suction control valve 24A and discharge control valve 25A are installed on the outside of the tank. The original flushing mud gun valve 27 has been replaced with a flushing line 23A installed at the bottom and connected to the discharge line, which serves to flush the tank bottom and prevent mud accumulation. Valves connecting to other units are integrated into the power transmission unit 9. This has the following advantages: first, the valve layout is relatively centralized, and the control and signal lines are arranged more uniformly, which are not easily mixed with other cables; second, the number of inter-tank connectors is reduced, and the power transmission unit 9 adopts a standardized design, which facilitates integration with subsequent units.

[0036] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0037] like Figure 1 Figure 1 shows the layout of the drilling fluid configuration and delivery system of the present invention. The solid material storage unit 1 and the liquid material storage unit 2 are installed near the mixing unit 6, facilitating the addition of chemicals to the feeding funnel 4. After the mixing unit 6 is configured, the mud is transferred via the weighted pump 5 and the discharge pipeline to the drilling fluid storage unit 8 for storage. To pump the drilling fluid stored in the drilling fluid storage unit 8 to the bottom of the well, the delivery pump 18 and associated valves are activated to pump the drilling fluid into the mud pump, completing the operational cycle.

[0038] like Figure 2This is a flow chart of the drilling fluid configuration and delivery system of the present invention. By closing the suction isolation valve 1A1 and the discharge isolation valves No. 1 and No. 2, the system can simultaneously configure drilling fluids of different properties in the two compartments of the mixing unit 6. By opening the suction control valve 1A1 and the discharge isolation valves No. 1 and No. 2, the two weighted mixing systems serve as backup for each other, preventing equipment anomalies and ensuring normal system operation.

[0039] like Figure 2 As shown, the No. 2 discharge isolation valve is opened, and the delivery pump 18 can deliver the drilling fluid configured in the reserve unit 16 to the mud pump through the power delivery unit 17. A connecting valve is installed between each reserve unit 16 and the power delivery unit 17. The valve is opened and closed at the same time to prevent mixing with the drilling fluid of other units.

[0040] like Figure 2 As shown, the power transmission unit 17 integrates the drilling fluid transmission pipeline, valves and control lines of all valves and equipment. The connection between modules is more convenient and neat, which facilitates the expansion of the system and can adapt to drilling rigs of different specifications.

[0041] like Figure 3 Figure 1 shows a schematic diagram of the control system of the present invention. The central processing unit receives signals from all the system's instrumentation, translates them, and displays them on the terminal. The processor then compares them with pre-set data within the system, outputting control signals to control the corresponding equipment or valves to achieve their intended functions. The system also allows operators to modify set parameters on the display terminal or activate and deactivate controlled equipment or valves to address specific operating conditions and perform internal system adjustments.

[0042] like Figure 6 The figure shows the process flow for online drilling fluid parameter monitoring in this utility model. The delivery pump 31 draws mud from the mixing unit 39, which then flows through the discharge pipeline into the feeding funnel 32. The mud is mixed with chemicals from the material addition unit 34 before being discharged back into the mixing unit 39, completing the drilling fluid circulation. To configure drilling fluid with new properties, different materials can be added from the material addition unit 34.

[0043] like Figure 6As shown, this is a schematic diagram of the online drilling fluid parameter monitoring process of the present invention. When drilling fluid performance needs to be tested, a constant flow pump 33 draws drilling fluid from a mixing unit 39. After passing through a series of test instruments, a portion of the drilling fluid returns to the mixing unit 39, while another portion of the drilling fluid passes through a capillary tube and is discharged from a drain outlet 36. Signals 37 fed back from each instrument are processed and fed back to the display terminal PC. The system automatically performs calculations and comparisons, and outputs signals 38 to control valve or actuator operation. This real-time monitoring process allows the desired drilling fluid performance to be achieved. The drilling fluid prepared by the mixing unit 39 is then delivered to the designated area. All monitoring equipment is integrated into the control room 310.

[0044] The above-mentioned specific implementation methods are only specific cases of the present utility model. The scope of patent protection of the present utility model includes but is not limited to the product form and style of the above-mentioned specific implementation methods. Any appropriate changes or modifications made to them by ordinary technicians in the relevant technical field that comply with the claims of the present utility model shall fall within the scope of patent protection of the present utility model.

Claims

1. An automated drilling fluid configuration and delivery system, characterized in that: It includes a mixing unit, a storage unit, a power delivery unit, a drug storage unit, a drilling fluid performance monitoring system and a main control system. The mixing unit includes a mud tank, a feeding funnel, a delivery pump and an electric control valve. The storage unit includes a solid material storage unit, a liquid material storage unit and a drilling fluid storage unit. The power delivery unit includes a delivery pump and an electric control valve. The drug storage unit includes a vertical storage tank, a chemical barrel, a fan and a diaphragm pump. The drilling fluid performance monitoring system includes a constant flow pump, a filter, a flow meter, a capillary and a pH meter. The main control system includes a central processing unit, input and output ports, a control system and a display. Pipelines are provided between the mixing unit, storage unit, power delivery unit and drug storage unit.

2. The automated drilling fluid configuration and delivery system according to claim 1, characterized in that: The controllers of the mixing unit, storage unit, power delivery unit and drug storage unit are all integrated into a main control system, and the storage unit is adjacent to the mixing unit.

3. The automated drilling fluid configuration and delivery system according to claim 1, wherein: The mixing unit is connected to a drilling fluid performance monitoring system for real-time measurement of various properties of the drilling fluid.

4. The automated drilling fluid configuration and delivery system according to claim 1, wherein: The storage unit is connected to the power delivery unit and is used to deliver the drilling fluid to a designated mud tank.

5. The automated drilling fluid configuration and delivery system according to claim 4, characterized in that: The power transmission unit includes a bracket and a transmission pipeline, and the bracket is provided with a cable, a data line and a signal line.

6. The automated drilling fluid configuration and delivery system according to claim 1, characterized in that: The solid material storage unit includes a plurality of vertical storage tanks, and weighing sensors are provided below the vertical storage tanks.

7. The automated drilling fluid configuration and delivery system according to claim 1, wherein: The liquid material storage unit includes a plurality of chemical barrels, and flow meters and liquid level meters are arranged on the outside of the chemical barrels.

8. The automated drilling fluid configuration and delivery system according to claim 1, wherein: The pipeline includes a No. 1 weighting pump, a No. 2 weighting pump, a No. 1 feeding funnel, a No. 2 feeding funnel, a suction isolation valve, a No. 1 discharge isolation valve and a No. 2 discharge isolation valve connected to the mixing unit, and a delivery pump is provided on the delivery pipeline on the power delivery unit.

9. The automated drilling fluid configuration and delivery system according to claim 8, characterized in that: The drilling fluid storage unit comprises a drilling fluid storage tank, wherein a mud tank and an agitator are arranged inside the drilling fluid storage tank, a flushing pipeline is arranged at the bottom, and a suction control valve and a discharge control valve are arranged on the outside of the drilling fluid storage tank.

10. The automated drilling fluid configuration and delivery system according to claim 9, characterized in that: The drilling fluid performance monitoring system includes an integrated control room connected to the mixing unit. A mixing pump is provided outside the mixing unit, and a constant flow pump, a flushing port, and a sewage outlet are provided inside the integrated control room.

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