Treatment method and device for waste petroleum drilling well, storage medium and electronic device

Abstract

The invention discloses a treatment method for a waste petroleum drilling well, and the method comprises the steps: obtaining geological parameters of an area where the waste petroleum drilling well is located; obtaining a pre-constructed stress analysis model of the abandoned petroleum drilling well, and determining stress characteristics of the abandoned petroleum drilling well based on the stress analysis model; based on the geological parameters and the stress characteristics, the geothermal resource depth of the area where the abandoned petroleum drilling well is located is determined; and according to the initial structure parameters of the abandoned petroleum drilling well and the geothermal resource depth, target structure parameters are determined, and the abandoned petroleum drilling well is treated according to the target structure parameters. By accurately judging the depth of the geothermal resource, the abandoned petroleum drilling well can be accurately and efficiently treated in combination with the initial structure parameters of the abandoned petroleum drilling well and the depth of the geothermal resource.

Description

Technical Field

[0001] This application relates to the technical field of oil drilling, and in particular, to a method and device for treating abandoned oil wells, a storage medium, and an electronic device. Background Art

[0002] With the continuous growth of energy demand, geothermal energy, as a clean and sustainable energy source, has received increasing attention and emphasis. The development of geothermal energy, especially the utilization of high-temperature geothermal resources, can provide a stable energy supply for power generation, heating, industrial heating, etc., while reducing greenhouse gas emissions, which is of great significance for combating climate change.

[0003] However, the development of traditional geothermal wells faces many challenges. One of the biggest obstacles is the high drilling cost. The drilling depth of geothermal wells is usually much greater than that of conventional oil and gas wells, reaching several kilometers. This process consumes a large amount of funds and time, and the geological conditions are complex and changeable, increasing the construction difficulty and risk.

[0004] The existence of abandoned oil wells provides a potential solution. These wells have overcome the high costs of geological exploration and deep drilling in the initial stage, leaving a complete underground structure, including wellbores, casings, and cement rings. Converting these abandoned wells into geothermal wells can significantly reduce the cost of re-drilling, while reducing the impact on the environment, with significant economic and environmental value.

[0005] Therefore, how to reasonably transform abandoned oil wells to provide technical support for geothermal development efficiently has become an urgent problem to be solved at present. Summary of the Invention

[0006] The embodiments of this application provide a method and device for treating abandoned oil wells, a storage medium, and an electronic device, so as to at least solve the problem that the efficiency is often low in the process of treating abandoned oil wells in related technologies.

[0007] According to an embodiment of the embodiments of this application, a method for treating an abandoned oil well is provided, including: obtaining geological parameters of the area where the abandoned oil well is located; obtaining a pre-constructed stress analysis model of the abandoned oil well, and based on the stress analysis model, determining the stress characteristics of the abandoned oil well; based on the geological parameters and the stress characteristics, determining the depth of geothermal resources in the area where the abandoned oil well is located; according to the initial structural parameters of the abandoned oil well and the depth of geothermal resources, determining target structural parameters, and treating the abandoned oil well according to the target structural parameters.

[0008] In an exemplary embodiment, determining the stress characteristics of the abandoned oil well based on the stress analysis model includes: initializing the stress analysis model based on set geological boundary conditions; inputting preset model parameters into the initialized stress analysis model to simulate the stress field of the abandoned oil well and obtain a stress field simulation result; and determining the stress characteristics of the abandoned oil well based on the stress field simulation result.

[0009] In an exemplary embodiment, determining the geothermal resource depth of the area where the abandoned oil well is located based on the geological parameters and the stress characteristics includes: dividing the area where the abandoned oil well is located into multiple sub-areas according to the geological parameters; determining the temperatures corresponding to the multiple sub-areas respectively based on the correlation between the stress characteristics and the heat source depth; and determining the geothermal resource depth of the area where the abandoned oil well is located based on the temperatures corresponding to the multiple sub-areas respectively.

[0010] In an exemplary embodiment, determining the geothermal resource depth of the area where the abandoned oil well is located based on the temperatures corresponding to the multiple sub-areas respectively includes: determining the sub-areas corresponding to the target temperatures that meet the temperature conditions among the temperatures of the multiple sub-areas as the heat accumulation positions; and determining the geothermal resource depth based on the depths of the heat accumulation positions.

[0011] In an exemplary embodiment, processing the abandoned oil well according to the target structural parameters includes: determining the well type and well depth according to the target structural parameters, and adjusting the wellbore of the abandoned oil well based on the well type and well depth to obtain a geothermal well.

[0012] In an exemplary embodiment, the method further includes: acquiring the fluid pressure and fluid temperature obtained by real-time data collection for the geothermal well; and outputting a warning message when the fluid pressure and fluid temperature meet the warning conditions.

[0013] According to another embodiment of the embodiments of the present application, there is also provided a processing device for an abandoned oil well, including: an acquisition module for acquiring the geological parameters of the area where the abandoned oil well is located; a determination module for acquiring the pre-constructed stress analysis model of the abandoned oil well and determining the stress characteristics of the abandoned oil well based on the stress analysis model; the determination module is further configured to determine the geothermal resource depth of the area where the abandoned oil well is located based on the geological parameters and the stress characteristics; and a processing module for determining target structural parameters according to the initial structural parameters of the abandoned oil well and the geothermal resource depth, and processing the abandoned oil well according to the target structural parameters.

[0014] According to another aspect of the embodiments of the present application, there is also provided a computer-readable storage medium storing a computer program, wherein the computer program is configured to execute the above method when running.

[0015] According to another aspect of the embodiments of the present application, there is also provided an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the above processor executes the above method through the computer program.

[0016] According to another aspect of the embodiments of the present application, there is also provided a computer program product, including a computer program, where the steps in any of the above method embodiments are implemented when the computer program is executed by a processor.

[0017] In the embodiments of the present application, by obtaining the geological parameters of the area where the abandoned oil well is located, combining with the pre-constructed stress analysis model to determine the stress characteristics of the well, and based on the analysis of the geological parameters and stress characteristics, the depth of geothermal resources can be determined more accurately. Thus, by combining the initial structural parameters of the abandoned oil well with the depth of the geothermal resources, the abandoned oil well can be processed accurately and efficiently. Description of the Drawings

[0018] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation of the present application. In the drawings:

[0019] Figure 1 is a hardware structure block diagram of a computer terminal for a method of processing an abandoned oil well according to an embodiment of the present application;

[0020] Figure 2 is a flowchart of a method for generating a method of processing an abandoned oil well according to an embodiment of the present application;

[0021] Figure 3 is a structure block diagram of a device for processing an abandoned oil well according to an embodiment of the present application. Detailed Embodiments

[0022] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0023] It should be noted that the terms "first", "second", etc. in the description, claims and the above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of this application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices; "a plurality" means two or more.

[0024] The method embodiments provided by the embodiments of this application can be executed on a computer terminal or a similar computing device or a cloud platform or an independent physical server or a software platform, where the above software platform runs through one or more servers. Taking running on a computer terminal as an example, Figure 1 is a hardware structure block diagram of a method for treating abandoned oil drilling in the embodiments of this application. As Figure 1 shown, the computer terminal may include one or more ( Figure 1 only one is shown in the figure) processors 102 and a memory 103 for storing data. In an exemplary embodiment, the above computer terminal may further include a transmission device 106 for communication functions and an input / output device 108. Among them, the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA. Those of ordinary skill in the art can understand that Figure 1 the structure shown is only schematic and does not limit the structure of the above computer terminal. For example, the computer terminal may further include more or fewer components than Figure 1 shown in the figure, or have the same functions as Figure 1 shown in the figure or different configurations with more functions than Figure 1 shown in the figure.

[0025] The memory 103 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the method in the embodiments of the present application. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 103, that is, implements the above-mentioned method. The memory 103 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memories, or other non-volatile solid-state memories. In some instances, the memory 103 may further include a memory remotely disposed relative to the processor 102, and these remote memories can be connected to the computer terminal through a network. Examples of the above-mentioned network include but are not limited to the Internet, enterprise intranet, local area network, mobile communication network, and combinations thereof.

[0026] The transmission device 106 is used to receive or send data via a network. Specific examples of the above-mentioned network may include a wireless network provided by a communication provider of a computer terminal. In one instance, the transmission device 106 includes a network adapter (Network Interface Controller, abbreviated as NIC), which can be connected to other network devices through a base station and thus communicate with the Internet. In one instance, the transmission device 106 can be a radio frequency (Radio Frequency, abbreviated as RF) module, which is used to communicate with the Internet wirelessly.

[0027] In this embodiment, a method for treating abandoned oil wells is provided, which is applied to the above computer device. Figure 2 It is a flowchart of the method for treating abandoned oil wells according to the embodiments of the present application, and this process includes the following steps:

[0028] Step S202, obtain the geological parameters of the area where the abandoned oil well is located;

[0029] It can be understood that the geological parameters may include the formation information of the area where the abandoned oil well is located, such as the type, thickness, age, physical parameters (such as density, porosity, permeability, and thermal conductivity) of each layer of rock, and these information can be obtained through geological maps, drilling records, and geological investigation reports. The geological parameters may also include the structural characteristics of the area, such as faults, folds, basins, etc., and these structural features may affect the storage and flow of geothermal fluids.

[0030] Step S204, obtain the stress analysis model of the abandoned oil well pre-constructed, and based on the stress analysis model, determine the stress characteristics of the abandoned oil well;

[0031] In an exemplary embodiment, determining the stress characteristics of the abandoned oil well based on the stress analysis model includes: initializing the stress analysis model based on set geological boundary conditions; inputting preset model parameters into the initialized stress analysis model to simulate the stress field of the abandoned oil well and obtain a stress field simulation result; and determining the stress characteristics of the abandoned oil well based on the stress field simulation result.

[0032] It should be noted that the boundary conditions of the model can be set based on rock type, formation thickness, groundwater pressure, etc. This is an important step in model initialization and directly affects the accuracy of the simulation.

[0033] The model parameters can include material property parameters, wellbore structure parameters, and groundwater and thermal fluid parameters. Among them, the material property parameters include elastic modulus, Poisson's ratio, shear modulus, density, coefficient of thermal expansion, etc. The wellbore structure parameters of the well include drilling diameter, wellbore shape, wellbore wall material and thickness, etc. The groundwater and thermal fluid parameters include parameters such as fluid density, viscosity, temperature, and pressure.

[0034] After inputting the model parameters into the initialized stress analysis model, run the stress analysis model to simulate the stress distribution of the abandoned oil well and the surrounding rocks under in-situ stress, obtain the stress field simulation result, analyze the stress field simulation result, and determine the stress characteristics. The stress characteristics can include the directions and magnitudes of the maximum and minimum principal stresses, stress gradients, and the effects of stress changes on wellbore stability and fracture formation. Through the stress characteristics, the locations of stress concentration or anomalies in the area can be identified, and these locations may be high-risk points for fracture formation or rock failure.

[0035] Step S206, determining the depth of geothermal resources in the area where the abandoned oil well is located based on the geological parameters and the stress characteristics;

[0036] In an exemplary embodiment, determining the depth of geothermal resources in the area where the abandoned oil well is located based on the geological parameters and the stress characteristics includes: dividing the area where the abandoned oil well is located into multiple sub-areas according to the geological parameters; determining the temperatures corresponding to the multiple sub-areas based on the correlation between the stress characteristics and the heat source depth; and determining the depth of geothermal resources in the area where the abandoned oil well is located based on the temperatures corresponding to the multiple sub-areas.

[0037] Among them, based on the collected geological parameters, including rock type, stratigraphic distribution, fault location, etc., the geological structure of the area where the abandoned oil well is located is analyzed. According to the results of the geological structure analysis, the entire area is divided into several sub-areas with similar geological characteristics. The division of sub-areas can take into account the thermal conductivity, permeability of rocks, and the distribution of geothermal anomaly areas. Ensure the consistency of geological parameters in each sub-area to facilitate subsequent prediction of temperature and pressure gradients.

[0038] It can be understood that there is a correlation between stress characteristics and temperature distribution, and high-stress areas may be related to geothermal anomalies. Using the results of the stress analysis model, analyze the influence of stress distribution at different depths on temperature changes. Specifically, establish an independent thermodynamic model for each sub-area, considering the stress characteristics, rock thermal conductivity, and geothermal gradient of the sub-area, and simulate the temperature distribution at different depths. Analyze the temperature simulation results of each sub-area to identify sub-areas with abnormally elevated temperatures, which may indicate areas with intensive geothermal resources or thermal fluid activities. Based on the relationship between temperature anomalies and depth, combined with knowledge of geothermal gradients and rock thermal conductivity, estimate the depth range of geothermal resources. Conduct a comprehensive analysis of the estimated results of the heat source depths of all sub-areas, and verify them in combination with historical geothermal drilling data and geophysical exploration results to improve the accuracy of depth prediction.

[0039] In some embodiments, a temperature distribution map of the entire area can be drawn to show the temperature change trends of different sub-areas at different depths. Compare the temperature distributions and estimated heat source depths of each sub-area, analyze the depth consistency of geothermal resources in the area, and identify the depths of the main heat sources. Based on the comprehensive analysis results, determine the geothermal resource depth of the area where the abandoned oil well is located, which will serve as the basis for retrofit design and drilling depth adjustment.

[0040] In the above embodiments, based on the geological parameters and stress characteristics of the area where the abandoned oil well is located, the geothermal resource depth of the area can be determined. This process makes full use of the original geological information of the abandoned well and combines the mechanical environment provided by stress analysis, providing a key depth reference for the retrofit of the abandoned oil well into a geothermal well, which is an essential preliminary assessment work in geothermal resource development.

[0041] In an exemplary embodiment, determining the geothermal resource depth of the area where the abandoned oil well is located based on the temperatures respectively corresponding to the multiple sub-areas includes: determining the sub-areas corresponding to the target temperatures that meet the temperature conditions among the temperatures of the multiple sub-areas as the heat accumulation positions; and determining the geothermal resource depth based on the depths of the heat accumulation positions.

[0042] It should be noted that the temperature threshold for geothermal resources is defined: The development of geothermal energy usually requires a certain minimum temperature, and this temperature threshold depends on specific geothermal applications. For example, geothermal power generation usually requires a temperature above 150 °C, while direct heating may only require a temperature of about 80 °C to 100 °C. According to the expected application of geothermal energy and industry standards, a specific target temperature is set as the standard for identifying heat accumulation locations.

[0043] Specifically, analyze the temperature data obtained by simulating each sub-region to identify which sub-regions have temperatures that reach or exceed the set target temperature. Mark the sub-regions that meet the temperature conditions as heat accumulation locations, which may contain rich geothermal resources. Further, based on knowledge of geological parameters and geothermal gradients, establish a relationship model between depth and temperature. Generally, as the depth increases, the temperature gradually rises. For each sub-region identified as a heat accumulation location, determine the specific depth at which the target temperature is reached based on its temperature data and the depth-temperature relationship model. This depth represents the critical point at which geothermal energy begins to meet the development requirements within the sub-region.

[0044] In some embodiments, the depth data corresponding to all heat accumulation locations can be compared and integrated to analyze their depth distribution patterns and identify the main depth of geothermal resource distribution. When determining the depth of geothermal resources, the geological structure and stress characteristics can be combined to evaluate the feasibility and safety of exploiting geothermal resources at the target depth. Based on the above analysis, determine the average or effective development depth of geothermal resources, which will be used as the main reference for transforming abandoned oil wells into geothermal wells.

[0045] In the above embodiments, heat accumulation locations can be effectively identified from multiple sub-regions, and based on the temperature conditions that meet the requirements of geothermal development, the depth of geothermal resources can be determined. This process not only relies on the accurate simulation of temperature data but also requires comprehensive consideration of geological structure and stress characteristics to ensure that the transformation of abandoned wells can safely and effectively exploit geothermal resources.

[0046] Step S208, determine the target structure parameters according to the initial structure parameters of the abandoned oil well and the depth of the geothermal resources, and process the abandoned oil well according to the target structure parameters.

[0047] In some embodiments, the initial structural parameters may include: Well type: the original well type of the abandoned oil well, such as vertical well, deviated well or horizontal well; Well depth: the depth of the abandoned oil well, and the structure within the wellbore (such as the position of the casing section, the thickness of the cement sheath, etc.); Wellbore diameter: the wellbore diameter of the abandoned oil well, which will affect the transmission efficiency of geothermal fluid and the selection of downhole tools; Geological environment: including rock type, formation pressure, temperature gradient, etc., these parameters have a direct impact on the transformation of the wellbore and the exploitation of geothermal resources. According to the depth of the geothermal resources, the target structural parameters are determined. For example, based on the depth of the geothermal resources, it is determined whether the well depth needs to be increased. If the existing well depth is insufficient, a plan for increasing the well depth needs to be designed; if the well depth is too deep, it may be necessary to seal the well near the resource depth. Considering the transmission requirements of geothermal fluid, it may be necessary to enlarge the diameter or maintain the existing diameter to ensure the smooth flow of the fluid and the operating space for downhole tools. According to the depth of the geothermal resources, suitable casing materials and types can also be selected to ensure the stability of the wellbore under high temperature and high pressure environments.

[0048] In an exemplary embodiment, the processing of the abandoned oil well according to the target structural parameters includes: determining the well type and well depth according to the target structural parameters, and adjusting the wellbore of the abandoned oil well based on the well type and well depth to obtain a geothermal well.

[0049] Among them, based on the target structural parameters, the most suitable geothermal well type is determined. For example, if the geothermal resources are located deep underground and multiple strata need to be penetrated, a vertical well may be selected; if the geothermal sources are distributed in layers, a horizontal well or a deviated well may be more suitable. According to the depth determined by the heat accumulation position, the well depth of the transformed geothermal well is calculated. If the existing well depth is insufficient, the well depth needs to be increased to reach the depth of the geothermal resources; if the well depth is too deep, it may be necessary to seal the well at a specific depth to avoid ineffective deep drilling.

[0050] In some embodiments, considering the high temperature and high pressure in the working environment of the geothermal well, it may be necessary to reinforce the wellbore, use materials that are more resistant to high temperature and high pressure, or increase the thickness of the wellbore to improve the structural stability and durability of the wellbore. According to the new well type and well depth, it may be necessary to replace or add casings, and at the same time adjust the setting of the cement sheath to ensure the sealing of the wellbore and the efficient transmission of the heat fluid. According to the well type and well depth, suitable geothermal downhole tools, such as heat exchangers, pumps and control valves, etc., are configured to adapt to the exploitation and transmission of geothermal fluid.

[0051] Through the above steps, processing the abandoned oil well according to the target structure parameters can effectively convert it into an efficient, safe and environmentally friendly geothermal well, providing a solid foundation for the development and utilization of geothermal energy. This process not only requires accurate geological and mechanical data support, but also requires rigorous operations in engineering design and construction to ensure the long-term stable operation of the geothermal well and the effective exploitation of resources.

[0052] In an exemplary embodiment, the method further includes: acquiring the fluid pressure and fluid temperature obtained by real-time data collection for the geothermal well; and outputting a warning message when the fluid pressure and fluid temperature meet the warning conditions.

[0053] It should be noted that pressure sensors are installed at key positions of the geothermal well (such as the wellhead, heat exchanger, pump, etc.) to monitor the pressure changes of the geothermal fluid in real time. Temperature sensors are installed at key points in the wellbore and the heat fluid transmission path to monitor the temperature changes of the fluid in real time. A data collection and transmission system is deployed to ensure that the sensor data can be transmitted to the central monitoring system in real time. At the same time, the system should have data processing and storage functions, and be able to perform preliminary cleaning and analysis on the original data.

[0054] Based on the design parameters and safety standards of the geothermal well, a warning threshold for the fluid pressure is set. For example, if the pressure resistance of the wellbore is not sufficient to withstand a pressure exceeding 100 Bar, then 100 Bar is the warning threshold. Similarly, based on the design parameters and application requirements, a warning threshold for the fluid temperature is set. For example, in geothermal power generation applications, too high a fluid temperature (which may exceed the temperature resistance range of the designed heat exchanger) or a sudden drop in temperature (which may indicate the exhaustion of the heat source or a wellbore leak) should be set as warning conditions. By displaying the fluid pressure and temperature data of the geothermal well in real time, so that the operators can immediately notice the abnormal changes.

[0055] When the monitored data of the fluid pressure or temperature reaches or exceeds the warning conditions, the system automatically triggers a warning signal. The warning message should include the abnormal values of the key parameters, the time and location of the abnormality, and possible risk warnings.

[0056] By real-time monitoring of the fluid pressure and temperature of the geothermal well and timely outputting warning messages in case of abnormalities, potential operation risks can be effectively prevented and controlled, ensuring the safe and stable operation of the geothermal well. At the same time, it is also an important guarantee for the efficient utilization of geothermal energy and environmental protection.

[0057] In the embodiments of the present application, geological parameters of the area where the abandoned oil well is located are obtained, and the stress characteristics of the well are determined by combining a pre-constructed stress analysis model. Based on the analysis of the geological parameters and stress characteristics, the depth of geothermal resources can be determined more accurately. Thus, the initial structural parameters of the abandoned oil well can be combined with the depth of the geothermal resources to accurately and efficiently process the abandoned oil well.

[0058] Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods of the various embodiments of the present application.

[0059] In the embodiments of the present application, a structural block diagram of a processing device for an abandoned oil well is also provided. Figure 3 It is a structural block diagram of a processing device for an abandoned oil well according to the embodiments of the present application; as Figure 3 shown, it includes:

[0060] An acquisition module 32, configured to acquire geological parameters of the area where the abandoned oil well is located;

[0061] A determination module 34, configured to acquire the pre-constructed stress analysis model of the abandoned oil well, and determine the stress characteristics of the abandoned oil well based on the stress analysis model;

[0062] The determination module 34 is further configured to determine the depth of geothermal resources in the area where the abandoned oil well is located based on the geological parameters and the stress characteristics;

[0063] A processing module 36, configured to determine target structural parameters according to the initial structural parameters of the abandoned oil well and the depth of the geothermal resources, and process the abandoned oil well according to the target structural parameters.

[0064] Through the above device, geological parameters of the area where the abandoned oil well is located are obtained, the stress characteristics of the well are determined by combining a pre-constructed stress analysis model, and based on the analysis of the geological parameters and stress characteristics, the depth of geothermal resources can be determined more accurately. Thus, the initial structural parameters of the abandoned oil well can be combined with the depth of the geothermal resources to accurately and efficiently process the abandoned oil well.

[0065] In an exemplary embodiment, the determination module 34 is further configured to initialize the stress analysis model based on set geological boundary conditions; input preset model parameters into the initialized stress analysis model to simulate the stress field of the abandoned oil well, and obtain a stress field simulation result; determine the stress characteristics of the abandoned oil well based on the stress field simulation result.

[0066] In an exemplary embodiment, the determination module 34 is further configured to divide the area where the abandoned oil well is located into multiple sub-areas according to the geological parameters; determine the temperatures corresponding to the multiple sub-areas respectively based on the correlation between the stress characteristics and the heat source depth; determine the geothermal resource depth of the area where the abandoned oil well is located based on the temperatures corresponding to the multiple sub-areas respectively.

[0067] In an exemplary embodiment, the determination module 34 is further configured to determine the sub-area corresponding to the target temperature that satisfies the temperature condition among the temperatures of the multiple sub-areas as the heat accumulation position; determine the geothermal resource depth based on the depth of the heat accumulation position.

[0068] In an exemplary embodiment, the processing module 36 is further configured to determine the well type and well depth according to the target structural parameters, and adjust the wellbore of the abandoned oil well based on the well type and well depth to obtain a geothermal well.

[0069] In an exemplary embodiment, the processing module 36 is further configured to obtain the fluid pressure and fluid temperature obtained by real-time data collection for the geothermal well; output a warning message when the fluid pressure and fluid temperature meet the warning conditions.

[0070] An embodiment of the present application further provides a storage medium, which includes a stored program, wherein the above program executes the method of any one of the above when running.

[0071] Optionally, in this embodiment, the above storage medium may be set to store program codes for executing the following steps:

[0072] S1, obtain the geological parameters of the area where the abandoned oil well is located;

[0073] S2, obtain the pre-constructed stress analysis model of the abandoned oil well, and determine the stress characteristics of the abandoned oil well based on the stress analysis model;

[0074] S3, determine the geothermal resource depth of the area where the abandoned oil well is located based on the geological parameters and the stress characteristics;

[0075] S4. Determine the target structural parameters according to the initial structural parameters of the abandoned oil well and the depth of the geothermal resources, and process the abandoned oil well according to the target structural parameters.

[0076] An embodiment of the present application further provides an electronic device, including a memory and a processor. A computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0077] Optionally, the above electronic device may further include a transmission device and an input / output device. Among them, the transmission device is connected to the above processor, and the input / output device is connected to the above processor.

[0078] Optionally, in this embodiment, the above processor may be configured to execute the following steps through a computer program:

[0079] S1. Obtain the geological parameters of the area where the abandoned oil well is located;

[0080] S2. Obtain the pre-constructed stress analysis model of the abandoned oil well, and based on the stress analysis model, determine the stress characteristics of the abandoned oil well;

[0081] S3. Based on the geological parameters and the stress characteristics, determine the depth of the geothermal resources in the area where the abandoned oil well is located;

[0082] S4. Determine the target structural parameters according to the initial structural parameters of the abandoned oil well and the depth of the geothermal resources, and process the abandoned oil well according to the target structural parameters.

[0083] Optionally, in this embodiment, the above storage medium may include but is not limited to: USB flash drive, read-only memory (ROM for short), random access memory (RAM for short), mobile hard disk, magnetic disk or optical disc and other media that can store program codes.

[0084] An embodiment of the present application further provides a computer program product. The above computer program product includes a computer program, and the steps in any one of the above method embodiments are implemented when the computer program is executed by a processor.

[0085] An embodiment of the present application further provides another computer program product, including a non-volatile computer-readable storage medium. The non-volatile computer-readable storage medium stores a computer program, and the steps in any one of the above method embodiments are implemented when the computer program is executed by a processor.

[0086] An embodiment of the present application further provides a computer program, which includes computer instructions stored in a computer-readable storage medium; a processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to cause the computer device to execute the steps in any one of the above method embodiments.

[0087] Optionally, specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and will not be elaborated herein.

[0088] Obviously, those skilled in the art should understand that the above-mentioned modules or steps of the present application can be implemented by a general-purpose computing device. They can be concentrated on a single computing device or distributed on a network composed of multiple computing devices. Optionally, they can be implemented by program codes executable by the computing device. Thus, they can be stored in a storage device and executed by the computing device. And in some cases, the steps shown or described can be executed in a different order from here, or they can be separately fabricated into individual integrated circuit modules, or multiple modules or steps among them can be fabricated into a single integrated circuit module to be implemented. In this way, the present application is not limited to any specific combination of hardware and software.

[0089] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for treating abandoned oil wells, characterized in that Including: Obtain the geological parameters of the area where the abandoned oil well is located; Obtain the pre-constructed stress analysis model of the abandoned oil well, and based on the stress analysis model, determine the stress characteristics of the abandoned oil well; Based on the geological parameters and the stress characteristics, determine the geothermal resource depth of the area where the abandoned oil well is located; According to the initial structural parameters of the abandoned oil well and the geothermal resource depth, determine the target structural parameters, and process the abandoned oil well according to the target structural parameters.

2. The method according to claim 1, characterized in that The determining the stress characteristics of the abandoned oil well based on the stress analysis model includes: Initialize the stress analysis model based on the set geological boundary conditions; Input the preset model parameters into the initialized stress analysis model to simulate the stress field of the abandoned oil well and obtain the stress field simulation result; Based on the stress field simulation result, determine the stress characteristics of the abandoned oil well.

3. The method according to claim 1, wherein The determining the geothermal resource depth of the area where the abandoned oil well is located based on the geological parameters and the stress characteristics includes: Divide the area where the abandoned oil well is located into multiple sub-areas according to the geological parameters; Based on the correlation between the stress characteristics and the heat source depth, determine the temperatures corresponding to the multiple sub-areas respectively; Based on the temperatures corresponding to the multiple sub-areas respectively, determine the geothermal resource depth of the area where the abandoned oil well is located.

4. The method according to claim 3, wherein The determining the geothermal resource depth of the area where the abandoned oil well is located based on the temperatures corresponding to the multiple sub-areas respectively includes: Determine the sub-areas corresponding to the target temperatures that meet the temperature conditions among the temperatures of the multiple sub-areas as the heat accumulation positions; Based on the depth of the heat accumulation positions, determine the geothermal resource depth.

5. The method according to claim 1, characterized in that, The processing the abandoned oil well according to the target structural parameters includes: According to the target structural parameters, determine the well type and well depth, and adjust the wellbore of the abandoned oil well based on the well type and well depth to obtain a geothermal well.

6. The method according to claim 5, wherein The method further includes: Obtain the fluid pressure and fluid temperature obtained by real-time data collection for the geothermal well; Output a warning message when the fluid pressure and fluid temperature meet the warning conditions.

7. A treatment device for abandoned oil drilling rigs, characterized in that, Including: An acquisition module for obtaining the geological parameters of the area where the abandoned oil well is located; A determination module for obtaining the pre-constructed stress analysis model of the abandoned oil well and determining the stress characteristics of the abandoned oil well based on the stress analysis model; The determination module is further configured to determine the geothermal resource depth of the area where the abandoned oil well is located based on the geological parameters and the stress characteristics; A processing module for determining the target structural parameters according to the initial structural parameters of the abandoned oil well and the geothermal resource depth, and processing the abandoned oil well according to the target structural parameters.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein the program executes the method described in any one of claims 1 to 6 above when running.

9. An electronic device, comprising a memory and a processor, characterized in that, A computer program is stored in the memory, and the processor is configured to execute the method described in any one of claims 1 to 6 through the computer program.

10. A computer program product, characterized in that, The computer program product includes a computer program, wherein when the computer program is executed by a processor, it executes the method described in any one of claims 1 to 6 above.

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