A monitoring and control system for oil well repair rig operation

Abstract

The present invention belongs to the technical field of oil well repair machine operation monitoring, and relates to an oil well repair machine operation monitoring and control system. The present invention is based on a well repair machine operation monitoring module, a well repair machine operation data analysis module, a well repair fluid parameter analysis module, a modification demand judgment module, a control module and a database. By obtaining the internal information of the target oil well repair machine corresponding to the drilling and the operation parameters and well repair fluid parameters of the target oil well repair machine during operation, it helps operators to timely discover and solve potential problems, thereby helping to reduce the risk of accidents. By analyzing the operation matching coefficient of the target oil well repair machine, it helps operators to accurately grasp the operation status and efficiency of the oil well repair machine, and then make timely adjustments and optimize the operation process, thereby improving the construction efficiency. By analyzing the well repair fluid matching coefficient of the target oil well repair machine, it helps to ensure that the waste treatment during the operation process meets environmental standards.

Description

Technical Field

[0001] The invention belongs to the technical field of petroleum workover rig operation monitoring and control, and relates to a petroleum workover rig operation monitoring and control system. Background Art

[0002] Oil well repair rig is a kind of power equipment used for well repair and underground operation. Oil well repair rig operation belongs to high-risk working environment. Once an accident occurs, it may cause casualties and environmental pollution. Therefore, the monitoring system for oil well repair rig operation is of great significance.

[0003] The existing monitoring system for oil well repair rig operation can monitor and control the operation status, parameters and equipment performance of the oil well repair rig in real time, and then can detect various parameters in the operation in real time and control them.

[0004] However, the existing monitoring system for oil well repair rig operations ignores the impact of internal information such as drilling geological hardness, porosity, underground pressure, temperature, depth and drill cuttings volume on the operating data and repair fluid parameters of the oil well repair rig operation process, and is unable to specifically and accurately regulate the operating data and repair fluid parameters of the oil well repair rig operation process, thereby failing to optimize the operation process, improve operation efficiency and reduce operation costs.

[0005] Among them, formations with high hardness require more downforce and higher drill bit rotation speed to penetrate. Higher porosity usually means that the formation is looser and relatively easy to drill, while lower porosity may result in higher friction and downforce, requiring higher rotation speed and descent speed to maintain the drilling speed. High underground pressure requires more downforce to resist to prevent bottom hole blowout. As the drilling depth increases, the downforce, rotation speed and descent speed usually need to increase accordingly to maintain the drilling speed and ensure stable drilling operations.

[0006] By adjusting the flow rate of the workover fluid, it can be ensured that enough drilling fluid is delivered to the bottom of the well to cool the drill bit, transport drill cuttings and maintain the stability of the well wall. By adjusting the temperature of the workover fluid, it can be ensured that the drill bit is cooled to prevent overheating and drill bit damage. By adjusting the density of the workover fluid, it can help maintain the bottom hole pressure and prevent bottom hole leakage or wellhead collapse. Appropriate viscosity helps to effectively transport drill cuttings, maintain hydraulic pressure and reduce friction losses, thereby improving the performance of the drilling fluid. Summary of the invention

[0007] In view of this, in order to solve the problems raised in the above background technology, a petroleum workover rig operation monitoring and control system is now proposed.

[0008] The purpose of the present invention can be achieved through the following technical solutions: The present invention provides an oil well repair rig operation monitoring and control system, including: a well repair rig operation monitoring module, which is used to monitor the target oil well repair rig in real time during the well repair operation, obtain the internal information of the target oil well repair rig corresponding to the drilling, and the operating data and well repair fluid parameters of the target oil well repair rig during operation.

[0009] The workover rig operation data analysis module is used to analyze the operation matching coefficient of the target oil workover rig according to the internal information of the target oil workover rig corresponding to the drilling well and the operation data of the target oil workover rig during operation.

[0010] The workover fluid parameter analysis module is used to analyze the workover fluid matching coefficient of the target oil workover rig according to the internal information of the target oil workover rig corresponding to the drilling well and the workover fluid parameters of the target oil workover rig during operation.

[0011] The modification demand judgment module is used to judge the modification demand of the operation data and the parameters of the workover fluid of the target oil workover rig.

[0012] The control module is used to control the operating data and workover fluid parameters of the target oil workover rig.

[0013] The database is used to store reference operating data and reference descent rate of the oil workover rig during operation corresponding to each depth of drilling, store reference internal information of the oil workover rig corresponding to each depth of drilling, store geological hardness corresponding to each depth of drilling, and store the final required depth of the oil workover rig corresponding to the drilling.

[0014] Preferably, the internal information of the target oil well repair rig corresponding to the well includes porosity, underground pressure, temperature, depth and amount of drill cuttings.

[0015] The operating data of the target oil well repairing machine during operation includes downward pressure, rotation speed and descending speed.

[0016] The workover fluid parameters during the operation of the target petroleum workover rig include flow rate, temperature, density and viscosity.

[0017] Preferably, the specific analysis method of the operation matching coefficient of the target oil well repair rig is: extracting the porosity, underground pressure and depth of the target oil well repair rig corresponding to the well, and extracting the downward pressure, rotation speed and descending speed of the target oil well repair rig during operation;

[0018] The target oil workover rig corresponding to the drilling depth is compared with the reference operation data of the oil workover rig corresponding to each drilling depth stored in the database, and the reference operation data of the target oil workover rig corresponding to the drilling depth of the target oil workover rig is obtained, which is recorded as the reference operation data of the target oil workover rig. Similarly, the reference internal information of the target oil workover rig can be obtained;

[0019] Extract the geological hardness corresponding to each drilling depth, and select the geological hardness corresponding to the drilling depth of the target oil well repair machine;

[0020] Analyze the estimated downforce during target oil well workover rig operation ,in are the porosity and underground pressure of the target oil well repair rig corresponding to the well, is the reference downforce of the oil well repair rig during operation extracted from the database, are the reference porosity and reference underground pressure of the corresponding wells of the oil workover rig extracted from the database, The geological hardness corresponding to the drilling depth of the target oil well repair rig, The correction factor for the unit reference geological hardness of the target oil workover rig corresponding to the drilling, They are the influencing factors corresponding to the set geological hardness, porosity and underground pressure;

[0021] Analyze the estimated rotation speed of the target oil well repair rig during operation ,in The target oil well repair rig corresponds to the drilling depth, is the reference speed of the oil well repair rig during operation extracted from the database, The final required depth of the well corresponding to the oil workover rig extracted from the database.

[0022] Analyze the estimated descent speed of the target oil well repair rig during operation ,in is the reference decline rate of the oil well repair rig during operation extracted from the database.

[0023] Analyze the operation matching coefficient of the target oil well repair rig ,in They are respectively the downward pressure, rotation speed and descending speed during the operation of the oil well repair rig. The thresholds of the estimated downforce and downforce ratio, the estimated speed and speed ratio, and the estimated descent speed and descent speed ratio are set respectively. are the weight factors of the operation matching coefficients corresponding to the set estimated downforce and downforce ratio, estimated speed and speed ratio, and estimated descent speed and descent speed ratio, respectively. is a natural constant.

[0024] Preferably, the specific judgment method of the modification requirement of the operation data of the target oil workover rig is: extracting the operation matching coefficient of the target oil workover rig, and comparing it with a preset operation matching coefficient threshold; if the operation matching coefficient of the target oil workover rig is greater than or equal to the preset operation matching coefficient threshold, then the modification requirement of the operation data of the target oil workover rig is that no modification is required; otherwise, the modification requirement of the operation data of the target oil workover rig is that modification is required.

[0025] Preferably, the specific control method of the operating data of the target oil workover rig is: if the modification demand of the operating data of the target oil workover rig is that modification demand is required, it is fed back to the oil workover rig control personnel, and the current downward pressure, current rotation speed and current descent speed of the target oil workover rig during operation are adjusted to the estimated downward pressure, estimated rotation speed and estimated descent speed respectively.

[0026] If the modification requirement of the operation data of the target oil well repair rig is that no modification requirement is required, the well repair rig operation monitoring module is executed.

[0027] Preferably, the specific analysis method of the workover fluid matching coefficient of the target petroleum workover rig is: extracting the temperature, depth, cuttings volume and underground pressure of the drilling well corresponding to the target petroleum workover rig.

[0028] The flow rate, temperature, density and viscosity of the target oil workover rig during operation are extracted, and then the temperature, depth, cuttings volume and underground pressure of the target oil workover rig corresponding to the workover fluid parameters during operation are obtained, which are recorded as the reference temperature, reference depth, reference cuttings volume and reference underground pressure of the target oil workover rig corresponding to the drilling.

[0029] Analyze the workover fluid matching coefficient of the target oil workover rig ,in are the temperature, depth, cuttings volume and underground pressure of the target oil well repair rig corresponding to the drilling, are the reference temperature, reference depth, reference cuttings volume and reference underground pressure of the target oil workover rig corresponding to the well, are the weight factors of the workover fluid matching coefficient corresponding to the set temperature, depth, cuttings volume and underground pressure respectively.

[0030] Preferably, the specific judgment method for the modification requirement of the workover fluid parameters of the target petroleum workover rig is: extracting the workover fluid matching coefficient of the target petroleum workover rig, subtracting it from a set target petroleum workover fluid matching coefficient threshold, obtaining the difference between the workover fluid matching coefficient of the target petroleum workover rig and the workover fluid matching coefficient threshold, and comparing it with the set difference threshold; if the difference between the workover fluid matching coefficient of the target petroleum workover rig and the workover fluid matching coefficient threshold is greater than the set difference threshold, then the modification requirement of the workover fluid parameters of the target petroleum workover rig is a modification requirement; otherwise, the modification requirement of the workover fluid parameters of the target petroleum workover rig is a modification requirement not required.

[0031] Preferably, the specific control method of the workover fluid parameters of the target oil workover rig is: analyzing the estimated flow rate of the workover fluid during the operation of the target oil workover rig ,in is the flow rate of the workover fluid during the operation of the target oil workover rig, It is the correction factor corresponding to the estimated flow rate of the workover fluid during the operation of the target oil workover rig.

[0032] Analyze the estimated temperature of the workover fluid during the target oil well workover rig operation ,in The temperature of the workover fluid during the operation of the target oil workover rig.

[0033] Analyze the estimated density of the target oil well workover rig operation ,in The density of the target oil workover rig during operation.

[0034] Analyze the estimated viscosity of the target oil well workover operation ,in The viscosity of the target oil well repair rig is Correction factor for the set estimated viscosity.

[0035] Extract the modification requirements of the workover fluid parameters of the target oil workover rig.

[0036] If the modification demand of the workover fluid parameters of the target oil workover rig is a modification demand, it will be fed back to the oil workover rig control personnel, and the flow rate, temperature, density and viscosity of the target oil workover rig during operation will be adjusted to the estimated flow rate, estimated temperature, estimated density and estimated viscosity respectively.

[0037] If the modification requirement of the workover fluid parameters of the target petroleum workover rig is that no modification requirement is required, the workover rig operation monitoring module is executed.

[0038] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention obtains the internal information of the target oil well repairing rig corresponding to the drilling and the operating data and repair fluid parameters of the target oil well repairing rig during operation by real-time monitoring of the target oil well repairing rig during the repairing operation, thereby effectively avoiding the low operating efficiency of the oil well repairing rig caused by the influence of internal information on the operating data and repairing fluid parameters during the operation of the oil well repairing rig, and helps operators to promptly discover and solve potential problems, thereby helping to reduce the risk of accidents.

[0039] 2. The present invention obtains different downward pressures, rotation speeds and descending speeds of the oil well repair machine during operation according to the different geological hardness, porosity and underground pressure inside the well, which is beneficial to preventing bottom hole blowouts, maintaining the drilling speed and ensuring stable drilling operations.

[0040] 3. The present invention adjusts the flow rate, temperature, density and viscosity of the workover fluid according to the different temperatures, depths and cuttings inside the well, thereby ensuring that sufficient drilling fluid is delivered to the bottom of the well, which is beneficial to preventing overheating and damage to the drill bit, preventing bottom hole blowouts or wellhead collapse, maintaining hydraulic pressure and reducing friction losses, and improving the performance of the drilling fluid.

[0041] 4. The present invention controls the operating data of the target oil workover rig by analyzing the operating matching coefficient of the target oil workover rig and judging the modification requirements of the operating data of the target oil workover rig, which helps the operator to accurately grasp the operating status and efficiency of the oil workover rig, and then make timely adjustments and optimize the operating process, thereby improving construction efficiency and reducing costs.

[0042] 5. The present invention controls the workover fluid parameters of the target oil workover rig by analyzing the workover fluid matching coefficient of the target oil workover rig and judging the modification requirements of the workover fluid parameters of the target oil workover rig, which is beneficial to more accurately regulate the workover fluid parameters according to the internal information of the target oil workover rig corresponding to the drilling, thereby helping to ensure the personal safety of construction personnel and environmental safety during the operation and minimize the impact on the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0044] Figure 1 It is a schematic diagram of system module connection of the present invention. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] See also Figure 1 As shown, the present invention provides a petroleum workover rig operation monitoring and control system, and the specific modules are distributed as follows: workover rig operation monitoring module, workover rig operation data analysis module, workover fluid parameter analysis module, modification demand judgment module, control module and database. Among them, the connection mode between the modules is: the workover rig operation monitoring module is connected with the workover rig operation data analysis module and the workover fluid parameter analysis module respectively, and the modification demand judgment module, control module and database are connected with the workover rig operation data analysis module and the workover fluid parameter analysis module respectively.

[0047] The workover rig operation monitoring module is used to monitor the target oil workover rig in real time during the workover operation, obtain the internal information of the target oil workover rig corresponding to the drilling well, as well as the operation data and workover fluid parameters of the target oil workover rig during operation.

[0048] As a preferred example, the internal information of the target oil well repair rig corresponding to the well includes porosity, underground pressure, temperature, depth and amount of drill cuttings.

[0049] It should be further explained that the specific method for obtaining the temperature and depth of the target oil well repair rig corresponding to the drilling is: a depth sounder and a temperature sensor are arranged on the drilling tool of the target oil well repair rig, and the temperature and depth of the target oil well repair rig corresponding to the drilling well are directly detected by the arranged depth sounder and temperature sensor.

[0050] The specific method for obtaining the porosity of the target oil well repair rig corresponding to the well is: a nuclear logging detector is arranged on the drill bit in the drilling tool of the target oil well repair rig, so as to use the arranged nuclear logging detector to emit neutrons to the underground formation of the well and generate gamma rays, and obtain the neutron count rate and gamma count rate from the nuclear logging detector, and then divide the neutron count rate by the gamma count rate to obtain the count rate ratio, further search for the corresponding data table of the relationship between the known porosity and the count rate ratio, and obtain the porosity of the well corresponding to the well of the target oil well repair rig.

[0051] The specific method for obtaining the underground pressure of the target oil workover rig corresponding to the well is: a pressure sensor is installed under the drilling tool of the target oil workover rig, and the underground pressure of the target oil workover rig corresponding to the well is directly detected by the installed pressure sensor.

[0052] The specific method for obtaining the amount of drill cuttings corresponding to the drilling of the target oil workover rig is: weighing and measuring the drill cuttings brought out by the workover fluid, and then obtaining the weight of the drill cuttings corresponding to the drilling of the target oil workover rig, which is recorded as the amount of drill cuttings corresponding to the drilling of the target oil workover rig.

[0053] The operating data of the target oil well repairing machine during operation includes downward pressure, rotation speed and descending speed.

[0054] It should be further explained that the specific method of obtaining the downward pressure and rotational speed of the target oil workover rig during operation is: a pressure sensor and a rotational speed sensor are arranged on the drill pipe in the drilling tool of the target oil workover rig, and then the downward pressure and rotational speed of the target oil workover rig during operation are detected by the arranged pressure sensor and rotational speed sensor.

[0055] The specific method for obtaining the descent speed of the target oil workover rig during operation is as follows: obtaining the current depth of the well corresponding to the target oil workover rig and the depth of the last monitored well corresponding to the target oil workover rig, subtracting them to obtain the depth difference between the current and last monitored well corresponding to the target oil workover rig, recording the current time point and the time point when the well corresponding to the target oil workover rig was last monitored, subtracting them to obtain the interval between the current time point and the time point when the well corresponding to the target oil workover rig was last monitored, recording it as the depth interval time of the well corresponding to the target oil workover rig, and further dividing the depth difference between the current and last monitored well corresponding to the target oil workover rig by the depth interval time of the well corresponding to the target oil workover rig to obtain the descent speed of the target oil workover rig during operation.

[0056] The workover fluid parameters during the operation of the target petroleum workover rig include flow rate, temperature, density and viscosity.

[0057] It should be further explained that the specific method for obtaining the flow rate, temperature, density and viscosity of the workover fluid during the operation of the target oil workover rig is as follows: a flow sensor, a temperature sensor, a density sensor and a viscosity sensor are arranged in the drill pipe of the drilling tool of the target oil workover rig, and the flow rate, temperature, density and viscosity of the workover fluid during the operation of the target oil workover rig are directly detected by using the arranged flow sensor, temperature sensor, density sensor and viscosity sensor.

[0058] The present invention obtains internal information of the target oil workover rig corresponding to the drilling well and operating data and workover fluid parameters of the target oil workover rig during operation by real-time monitoring of the target oil workover rig during the workover operation, thereby effectively avoiding the low operating efficiency of the oil workover rig caused by ignoring the influence of internal information such as geological hardness, porosity, underground pressure, temperature, depth and cuttings volume of the drilling well on the operating data and workover fluid parameters of the oil workover rig during operation, and is conducive to real-time detection of various parameters in the operation, helping operators to promptly discover and solve potential problems, thereby helping to reduce the risk of accidents.

[0059] The workover rig operation data analysis module is used to analyze the operation matching coefficient of the target oil workover rig according to the internal information of the target oil workover rig corresponding to the drilling well and the operation data of the target oil workover rig during operation.

[0060] The modification demand judgment module is used to judge the modification demand of the operation data and the parameters of the workover fluid of the target oil workover rig.

[0061] The control module is used to control the operating data and workover fluid parameters of the target oil workover rig.

[0062] As a preferred example, the specific analysis method of the operation matching coefficient of the target oil workover rig is: extracting the porosity, underground pressure and depth of the target oil workover rig corresponding to the drilling, and extracting the downward pressure, rotation speed and descent speed of the target oil workover rig during operation.

[0063] The drilling depth corresponding to the target oil workover rig is compared with the reference operating data of the oil workover rig corresponding to each drilling depth stored in the database, and the reference operating data of the target oil workover rig corresponding to the drilling depth of the target oil workover rig is obtained, which is recorded as the reference operating data of the target oil workover rig. Similarly, the reference internal information of the target oil workover rig can be obtained.

[0064] It should be further explained that the specific method for obtaining the reference operating data of the oil well repair rig during operation corresponding to each depth of the drilling is: the operating data of the oil well repair rig during operation corresponding to each depth of each historical drilling is collected, and the operating data are averaged to obtain the average operating data of the oil well repair rig during operation corresponding to each historical depth, which is recorded as the reference operating data of the oil well repair rig during operation corresponding to each depth of the drilling, and the reference descent speed in the reference operating data of the oil well repair rig during operation corresponding to each depth of the drilling is averaged again to obtain the reference descent rate of the oil well repair rig during operation.

[0065] The specific method for obtaining the reference internal information of the oil well repair rig corresponding to each depth of the well drilling is: a method for obtaining the reference operation data of the oil well repair rig during operation corresponding to each depth of the well drilling.

[0066] Extract the geological hardness corresponding to each drilling depth, and select the geological hardness corresponding to the drilling depth of the target oil well repair machine;

[0067] Analyze the estimated downforce during target oil well workover rig operation ,in are the porosity and underground pressure of the target oil well repair rig corresponding to the well, is the reference downforce of the oil well repair rig during operation extracted from the database, are the reference porosity and reference underground pressure of the corresponding wells of the oil workover rig extracted from the database, The geological hardness corresponding to the drilling depth of the target oil well repair rig, The correction factor for the unit reference geological hardness of the target oil workover rig corresponding to the drilling, They are the influencing factors corresponding to the set geological hardness, porosity and underground pressure;

[0068] Analyze the estimated rotation speed of the target oil well repair rig during operation ,in The target oil well repair rig corresponds to the drilling depth, is the reference speed of the oil well repair rig during operation extracted from the database, The final required depth of the well corresponding to the oil workover rig extracted from the database.

[0069] Analyze the estimated descent speed of the target oil well repair rig during operation ,in is the reference decline rate of the oil well repair rig during operation extracted from the database.

[0070] Analyze the operation matching coefficient of the target oil well repair rig ,in They are respectively the downward pressure, rotation speed and descending speed during the operation of the oil well repair rig. The thresholds of the estimated downforce and downforce ratio, the estimated speed and speed ratio, and the estimated descent speed and descent speed ratio are set respectively. are the weight factors of the operation matching coefficients corresponding to the set estimated downforce and downforce ratio, estimated speed and speed ratio, and estimated descent speed and descent speed ratio, respectively. is a natural constant.

[0071] As a preferred example, the specific judgment method for the modification requirement of the operating data of the target oil workover rig is: extracting the operating matching coefficient of the target oil workover rig, and comparing it with a preset operating matching coefficient threshold; if the operating matching coefficient of the target oil workover rig is greater than or equal to the preset operating matching coefficient threshold, then the modification requirement of the operating data of the target oil workover rig is that no modification is required; otherwise, the modification requirement of the operating data of the target oil workover rig is that modification is required.

[0072] As a preferred example, the specific control method of the operating data of the target oil well repair rig is: if the modification demand of the operating data of the target oil well repair rig is that modification demand is required, it is fed back to the oil well repair rig control personnel, and the current downward pressure, current rotation speed and current descent speed of the target oil well repair rig during operation are adjusted to the estimated downward pressure, estimated rotation speed and estimated descent speed respectively.

[0073] The invention obtains different downward pressures, rotation speeds and descending speeds of the oil well repair machine during operation according to different geological hardness, porosity and underground pressure inside the well, which is beneficial to preventing bottom hole blowouts, maintaining the drilling speed and ensuring stable drilling operations.

[0074] If the modification requirement of the operation data of the target oil well repair rig is that no modification requirement is required, the well repair rig operation monitoring module is executed.

[0075] The present invention controls the operating data of the target oil workover rig by analyzing the operating matching coefficient of the target oil workover rig and judging the modification requirements of the operating data of the target oil workover rig, which helps operators to accurately grasp the operating status and efficiency of the oil workover rig, and then make timely adjustments and optimize the operating process, thereby improving construction efficiency and reducing costs.

[0076] The workover fluid parameter analysis module is used to analyze the workover fluid matching coefficient of the target oil workover rig according to the internal information of the target oil workover rig corresponding to the drilling well and the workover fluid parameters of the target oil workover rig during operation.

[0077] As a preferred example, the specific analysis method of the workover fluid matching coefficient of the target oil workover rig is: extracting the temperature, depth, cuttings volume and underground pressure of the drilling well corresponding to the target oil workover rig.

[0078] The flow rate, temperature, density and viscosity of the workover fluid during the operation of the target oil workover rig are extracted, and then the temperature, depth, cuttings volume and underground pressure of the target oil workover rig corresponding to the workover fluid parameters during the operation of the target oil workover rig are obtained, and recorded as the reference temperature, reference depth, reference cuttings volume and reference underground pressure of the target oil workover rig corresponding to the drilling.

[0079] Analyze the workover fluid matching coefficient of the target oil workover rig ,in are the temperature, depth, cuttings volume and underground pressure of the target oil well repair rig corresponding to the drilling, are the reference temperature, reference depth, reference cuttings volume and reference underground pressure of the target oil workover rig corresponding to the well, are the weight factors of the workover fluid matching coefficient corresponding to the set temperature, depth, cuttings volume and underground pressure respectively.

[0080] As a preferred example, the specific judgment method for the modification requirement of the workover fluid parameters of the target oil workover rig is: extract the workover fluid matching coefficient of the target oil workover rig, subtract it from the set target oil workover fluid matching coefficient threshold, obtain the difference between the workover fluid matching coefficient of the target oil workover rig and the workover fluid matching coefficient threshold, compare it with the set difference threshold, if the difference between the workover fluid matching coefficient of the target oil workover rig and the workover fluid matching coefficient threshold is greater than the set difference threshold, then the modification requirement of the workover fluid parameters of the target oil workover rig is a modification requirement, otherwise, the modification requirement of the workover fluid parameters of the target oil workover rig is a modification requirement.

[0081] As a preferred example, the specific control method of the workover fluid parameters of the target oil workover rig is: analyzing the estimated flow rate of the workover fluid during the operation of the target oil workover rig ,in is the flow rate of the workover fluid during the operation of the target oil workover rig, It is the correction factor corresponding to the estimated flow rate of the workover fluid during the operation of the target oil workover rig.

[0082] Analyze the estimated temperature of the workover fluid during the target oil well workover rig operation ,in The temperature of the workover fluid during the operation of the target oil workover rig.

[0083] Analyze the estimated density of the workover fluid during the target oil well workover operation ,in The density of the workover fluid during the operation of the target oil workover rig.

[0084] Analyze the estimated viscosity of the workover fluid during the target oil well workover operation ,in The viscosity of the workover fluid during the operation of the target oil workover rig. Correction factor for the set estimated viscosity.

[0085] Extract the modification requirements of the workover fluid parameters of the target oil workover rig.

[0086] If the modification demand of the workover fluid parameters of the target oil workover rig is a modification demand, it will be fed back to the oil workover rig control personnel, and the flow rate, temperature, density and viscosity of the workover fluid during the operation of the target oil workover rig will be adjusted to the estimated flow rate, estimated temperature, estimated density and estimated viscosity respectively.

[0087] The present invention adjusts the flow rate, temperature, density and viscosity of the workover fluid according to the different temperatures, depths and cuttings inside the well, thereby ensuring that sufficient drilling fluid is delivered to the bottom of the well, which is beneficial to preventing overheating and damage to the drill bit, preventing bottom hole blowout or wellhead collapse, maintaining hydraulic pressure and reducing friction loss, and improving the performance of the drilling fluid.

[0088] If the modification requirement of the workover fluid parameters of the target petroleum workover rig is that no modification requirement is required, the workover rig operation monitoring module is executed.

[0089] The present invention controls the workover fluid parameters of the target oil workover rig by analyzing the workover fluid matching coefficient of the target oil workover rig and judging the modification requirements of the workover fluid parameters of the target oil workover rig, which is beneficial to more accurately regulate the workover fluid parameters according to the internal information of the target oil workover rig corresponding to the drilling, thereby helping to ensure the personal safety of construction personnel and environmental safety during the operation and minimizing the impact on the environment.

[0090] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the present invention, they shall all fall within the protection scope of the present invention.

Claims

1. A monitoring and control system for oil well repair rig operation, characterized in that: include: The workover rig operation monitoring module is used to monitor the target oil workover rig in real time during the workover operation, obtain the internal information of the target oil workover rig corresponding to the well, as well as the operation data and workover fluid parameters of the target oil workover rig during operation; A workover rig operation data analysis module is used to analyze the operation matching coefficient of the target oil workover rig according to the internal information of the target oil workover rig corresponding to the drilling well and the operation data of the target oil workover rig during operation; A workover fluid parameter analysis module is used to analyze the workover fluid matching coefficient of the target oil workover rig according to the internal information of the target oil workover rig corresponding to the drilling well and the workover fluid parameters of the target oil workover rig during operation; A modification demand judgment module is used to judge the modification demand of the operation data of the target oil workover rig and the parameters of the workover fluid; A control module, used to control the operating data and workover fluid parameters of the target oil workover rig; A database for storing reference operating data and reference descent rate of the oil workover rig during operation corresponding to each depth of the drilling, storing reference internal information of the oil workover rig corresponding to each depth of the drilling, storing geological hardness corresponding to each depth of the drilling, and storing the final required depth of the oil workover rig corresponding to the drilling; The internal information of the target oil well repair rig corresponding to the well includes porosity, underground pressure, temperature, depth and amount of drill cuttings; The operating data of the target oil well repairing machine during operation includes downward pressure, rotation speed and descending speed; The workover fluid parameters during the operation of the target oil workover rig include flow rate, temperature, density and viscosity; The specific analysis method of the operation matching coefficient of the target oil well repair rig is as follows: Extract the porosity, underground pressure and depth of the target oil well repair rig corresponding to the drilling, and extract the downward pressure, rotation speed and descending speed of the target oil well repair rig during operation; The target oil workover rig corresponding to the drilling depth is compared with the reference operation data of the oil workover rig corresponding to each drilling depth stored in the database, and the reference operation data of the target oil workover rig corresponding to the drilling depth of the target oil workover rig is obtained, which is recorded as the reference operation data of the target oil workover rig. Similarly, the reference internal information of the target oil workover rig can be obtained; Extract the geological hardness corresponding to each drilling depth, and select the geological hardness corresponding to the drilling depth of the target oil well repair machine; Analyze the estimated downforce during target oil well workover rig operation ,in are the porosity and underground pressure of the target oil well repair rig corresponding to the well, is the reference downforce of the oil well repair rig during operation extracted from the database, are the reference porosity and reference underground pressure of the corresponding wells of the oil workover rig extracted from the database, The geological hardness corresponding to the drilling depth of the target oil well repair rig, The correction factor for the unit reference geological hardness of the target oil workover rig corresponding to the drilling, They are the influencing factors corresponding to the set geological hardness, porosity and underground pressure; Analyze the estimated rotation speed of the target oil well repair rig during operation ,in The target oil well repair rig corresponds to the drilling depth, is the reference speed of the oil well repair rig during operation extracted from the database, The final required depth of the well corresponding to the oil workover rig extracted from the database; Analyze the estimated descent speed of the target oil well repair rig during operation ,in is the reference decline rate of the oil well repair rig operation extracted from the database; Analyze the operation matching coefficient of the target oil well repair rig ,in They are respectively the downward pressure, rotation speed and descending speed during the operation of the oil well repair rig. The thresholds of the estimated downforce and downforce ratio, the estimated speed and speed ratio, and the estimated descent speed and descent speed ratio are set respectively. are the weight factors of the operation matching coefficients corresponding to the set estimated downforce and downforce ratio, estimated speed and speed ratio, and estimated descent speed and descent speed ratio, respectively. is a natural constant; The specific method for determining the modification requirement of the operating data of the target oil well repairing rig is as follows: Extracting the operation matching coefficient of the target oil well workover rig, and comparing it with a preset operation matching coefficient threshold value, if the operation matching coefficient of the target oil well workover rig is greater than or equal to the preset operation matching coefficient threshold value, then the modification requirement of the operation data of the target oil well workover rig is no modification requirement, otherwise, the modification requirement of the operation data of the target oil well workover rig is a modification requirement; The specific analysis method of the workover fluid matching coefficient of the target petroleum workover rig is as follows: Extract the temperature, depth, cuttings volume and underground pressure of the corresponding well of the target oil workover rig; Extract the flow rate, temperature, density and viscosity of the workover fluid during the operation of the target oil workover rig, and then obtain the temperature, depth, cuttings volume and underground pressure of the target oil workover rig corresponding to the workover fluid parameters during the operation of the target oil workover rig, and record them as the reference temperature, reference depth, reference cuttings volume and reference underground pressure of the target oil workover rig corresponding to the drilling well; Analyze the workover fluid matching coefficient of the target oil workover rig ,in are the temperature, depth, cuttings volume and underground pressure of the target oil well repair rig corresponding to the drilling well, are the reference temperature, reference depth, reference cuttings volume and reference underground pressure of the target oil workover rig corresponding to the well, are weight factors of the workover fluid matching coefficient corresponding to the set temperature, depth, cuttings volume and underground pressure respectively; The specific method for determining the modification requirements of the workover fluid parameters of the target oil workover rig is as follows: The workover fluid matching coefficient of the target oil workover rig is extracted, and the difference between the workover fluid matching coefficient of the target oil workover rig and the workover fluid matching coefficient threshold is subtracted to obtain the difference between the workover fluid matching coefficient of the target oil workover rig and the workover fluid matching coefficient threshold, which is compared with the set difference threshold. If the difference between the workover fluid matching coefficient of the target oil workover rig and the workover fluid matching coefficient threshold is greater than the set difference threshold, then the modification requirement of the workover fluid parameters of the target oil workover rig needs to be modified; otherwise, the modification requirement of the workover fluid parameters of the target oil workover rig does not need to be modified.

2. The oil well repair rig operation monitoring and control system according to claim 1, characterized in that: The specific control method of the operating data of the target oil well repairing machine is: If the modification demand of the operation data of the target oil well workover rig is that the modification demand is required, the modification demand is fed back to the oil well workover rig control personnel, and the current downward pressure, current rotation speed and current descending speed of the target oil well workover rig during operation are adjusted to the estimated downward pressure, estimated rotation speed and estimated descending speed respectively; If the modification requirement of the operation data of the target oil workover rig is that no modification requirement is required, the information acquisition module is executed.

3. The oil well repair rig operation monitoring and control system according to claim 1, characterized in that: The specific control method of the workover fluid parameters of the target petroleum workover rig is: Analyze the estimated flow rate of workover fluid during target oil well workover rig operation ,in is the flow rate of the workover fluid during the operation of the target oil workover rig, A correction factor corresponding to the estimated flow rate of the workover fluid during the operation of the target oil workover rig; Analyze the estimated temperature of the workover fluid during the target oil well workover rig operation ,in The temperature of the workover fluid during the operation of the target oil workover rig; Analyze the estimated density of the workover fluid during the target oil well workover operation ,in The density of the workover fluid during the operation of the target oil workover rig; Analyze the estimated viscosity of the workover fluid during the target oil well workover operation ,in The viscosity of the workover fluid during the operation of the target oil workover rig. is the correction factor for the set estimated viscosity; Extract the modification requirements of the workover fluid parameters of the target oil workover rig; If the modification demand of the workover fluid parameters of the target oil workover rig is a modification demand, it is fed back to the oil workover rig control personnel, and the flow rate, temperature, density and viscosity of the workover fluid during the operation of the target oil workover rig are adjusted to the estimated flow rate, estimated temperature, estimated density and estimated viscosity respectively; If the modification requirement of the workover fluid parameters of the target petroleum workover rig is that no modification requirement is required, the information acquisition module is executed.

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