Tectonic plate reconstruction-based ground stress prediction method, device, equipment, medium and program

Abstract

The present disclosure relates to the technical field of data processing, and particularly relates to a method and device for predicting geo-stress based on plate reconstruction, equipment, medium and program. The method comprises: determining a tectonic period of a target region based on historical geological data of the target region; wherein the historical geological data comprises at least one of the following: seismic data and logging data, and the tectonic period is used to indicate a period of movement of the target region; determining a plate reconstruction model and a target topological grid based on the tectonic period; wherein the target topological grid is a closed polygon region in the target region that changes over time; determining a geo-stress parameter of the target region based on the plate reconstruction model; and processing the target topological grid and the geo-stress parameter to obtain a target geo-stress of the target region.

Description

Technical Field

[0001] This disclosure relates to the field of data processing technology, and in particular to a method, apparatus, device, medium, and program for predicting geostress based on plate tectonics reconstruction. Background Technology

[0002] In-situ stress exists within the Earth's crust. It refers to the force per unit area within the medium caused by rock deformation. Since it includes stress caused by the weight of the overlying rock and tectonic stress (tectonic stress directly reflects the driving force of crustal movement), in-situ stress prediction is an important consideration in oil and gas exploration and development.

[0003] In related technologies, the prediction of geostress relies on theories such as elasticity, plasticity, and fracture mechanics, combined with tectonic stress fields and geological conditions, to estimate the geostress state through analytical or semi-analytical solutions. Alternatively, it depends on actual measurements of geostress. These prediction methods typically focus on specific small-scale regions (i.e., small areas) and cannot macroscopically represent large-scale regions (i.e., large areas), potentially leading to discrepancies with the tectonic background and resulting in inaccurate geostress predictions. Summary of the Invention

[0004] This disclosure provides a method, apparatus, device, medium, and program for predicting geostress based on plate reconstruction, in order to avoid the problem of inaccurate geostress prediction due to the inability to macroscopically characterize large-scale areas (i.e., large-area areas) and the possibility of situations that contradict the geotectonic background.

[0005] In a first aspect, this disclosure provides a method for predicting geostress in plate remodeling, including:

[0006] Based on historical geological data of the target area, the tectonic period of the target area is determined; wherein, the historical geological data includes at least one of the following: seismic data and well logging data, and the tectonic period is used to indicate the period of movement of the target area;

[0007] Based on the aforementioned construction period, a plate reconstruction model and a target topological mesh are determined; wherein, the target topological mesh is a closed polygonal region in the target region that changes over time;

[0008] Based on the plate reconstruction model, the geostress parameters of the target area are determined;

[0009] The target geostress of the target region is obtained by processing the target topology grid and the geostress parameters.

[0010] In some embodiments, determining the tectonic period of the target area based on historical geological data of the target area includes:

[0011] By performing structural interpretation on the historical geological data, the tectonic development history of the target area can be obtained;

[0012] Based on the aforementioned tectonic development history, the tectonic period is determined.

[0013] In some embodiments, determining the plate reconstruction model and target topology mesh based on the construction period includes:

[0014] Based on the aforementioned tectonic period, a plate reconstruction model suitable for the plate tectonic geographic information system platform is determined;

[0015] Based on the historical geological data and the target topology grid, the movement of each sub-target area within the target area is determined;

[0016] Based on the motion and the plate reconstruction model, the target topological mesh is determined.

[0017] In some embodiments, determining the geostress parameters of the target area based on the plate reconstruction model includes:

[0018] Determine the deformable mesh points for each of the sub-target regions;

[0019] In the plate tectonics geographic information system platform, the sub-geostress parameters of each of the deformed grid points are determined, and each of the sub-geostress parameters is determined as the geostress parameters of the target area.

[0020] In some embodiments, the process of processing based on the target topology grid and the geostress parameters to obtain the target geostress of the target region includes:

[0021] Based on the target topology grid and the geostress parameters, geostress prediction is performed to obtain the initial geostress of the target region in each of the tectonic periods;

[0022] The target geostress of the target region is obtained by weighted summation based on the initial geostresses.

[0023] In some embodiments, the weighted summation based on each of the initial geostresses to obtain the target geostress of the target region includes:

[0024] Determine the geological activity of the target area during each of the tectonic periods;

[0025] Based on the geological activity, the weighting coefficients of the target area in each of the tectonic periods are determined;

[0026] The target ground stress is obtained by performing a weighted summation based on the weighting coefficients and the initial ground stress.

[0027] Secondly, this disclosure provides a geostress prediction device based on plate tectonics reconstruction, comprising:

[0028] The first determining module is used to determine the tectonic period of the target area based on historical geological data of the target area; wherein the historical geological data includes at least one of the following: seismic data and well logging data, and the tectonic period is used to indicate the period of movement of the target area;

[0029] The second determining module is used to determine the plate reconstruction model and the target topological mesh based on the construction period; wherein the target topological mesh is a closed polygonal region in the target region that changes over time;

[0030] The third determining module is used to determine the geostress parameters of the target area based on the plate reconstruction model.

[0031] The processing module is used to process the target topology grid and the geostress parameters to obtain the target geostress of the target area.

[0032] Thirdly, this disclosure provides a computer device including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the method described in the foregoing aspects.

[0033] Fourthly, this disclosure provides a computer-readable storage medium having a computer program stored thereon that, when executed by a processor, implements the steps of the methods described in the above aspects.

[0034] Fifthly, this disclosure provides a computer program product, including a computer program / instructions that, when executed by a processor, implement the steps of the methods described in the foregoing aspects.

[0035] This disclosure provides a method, apparatus, equipment, medium, and program for predicting geostress based on plate tectonics reconstruction. It determines the geological movement state of a target region to obtain its tectonic period. Then, a plate tectonics reconstruction model is constructed for the target region. Subsequently, the target geostress is determined using the tectonic period and the plate tectonics reconstruction model. By considering internal data from multiple geological movements and systematically predicting geostress in the target region under the constraints of the geological tectonic background, the method can be applied to target regions of various sizes without contradicting the tectonic background, thus improving the accuracy of geostress prediction. Attached Figure Description

[0036] The present disclosure will be described in more detail below based on embodiments and with reference to the accompanying drawings:

[0037] Figure 1This is a flowchart illustrating a method for predicting geostress in plate reconstruction, provided as an embodiment of this disclosure.

[0038] Figure 2 This is a schematic diagram illustrating the specific process of a geostress prediction method based on plate reconstruction, provided in an embodiment of this disclosure.

[0039] Figure 3 A plate reconstruction map based on plate reconstruction for geostress prediction is provided as an embodiment of this disclosure.

[0040] Figure 4 This disclosure provides a tectonic stress distribution map based on plate reconstruction for geostress prediction.

[0041] Figure 5 A linear tectonic stress diagram based on plate reconstruction for geostress prediction is provided in an embodiment of this disclosure.

[0042] Figure 6 This is a schematic diagram of a geostress prediction device based on plate reconstruction, provided as an embodiment of this disclosure.

[0043] Figure 7 A schematic diagram of an electronic device provided in this disclosure.

[0044] In the accompanying drawings, the same parts are referred to by the same reference numerals, and the drawings are not drawn to scale. Detailed Implementation

[0045] To enable those skilled in the art to better understand the technical solutions of this disclosure, and to fully understand and implement the process of how this disclosure applies technical means to solve technical problems and achieve corresponding technical effects, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, not all embodiments. The embodiments of this disclosure and the various features within them can be combined with each other without conflict, and the resulting technical solutions are all within the protection scope of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort should fall within the protection scope of this disclosure.

[0046] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0047] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0048] In this document, the term "and / or" merely describes a relationship, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0049] Research has revealed that geostress exists within the Earth's crust. It is the force per unit area within the medium caused by rock deformation. Since it includes stress caused by the weight of the overlying rock and tectonic stress (tectonic stress directly reflects the driving force of crustal movement), geostress prediction is an important consideration in oil and gas exploration and development.

[0050] In related technologies, the prediction of geostress relies on theories such as elasticity, plasticity, and fracture mechanics, combined with tectonic stress fields and geological conditions, to estimate the geostress state through analytical or semi-analytical solutions. Alternatively, it depends on actual measurements of geostress. These prediction methods typically focus on specific small-scale regions (i.e., small areas) and cannot macroscopically represent large-scale regions (i.e., large areas), potentially leading to discrepancies with the tectonic background and resulting in inaccurate geostress predictions.

[0051] Based on the above research, this disclosure provides a method for predicting geostress. By determining the geological movement state of the target area, the tectonic period of the target area is obtained. Then, a plate reconstruction model is constructed for the target area. Subsequently, the target geostress in the target area is determined using the tectonic period and the plate reconstruction model. Considering the internal data of multiple geological movements, geostress prediction is systematically performed for the target area under the constraints of the geological tectonic background, yielding the target geostress. This method can be applied to target areas of various sizes and will not contradict the tectonic background, thus improving the accuracy of geostress prediction.

[0052] It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases the steps shown or described may be executed in a different order than that shown here.

[0053] To facilitate understanding of this embodiment, a method for predicting geostress disclosed in this disclosure will first be described in detail. The subject executing the geostress prediction method provided in this disclosure is generally an electronic device with a certain computing capability. In some possible implementations, this behavior recognition method can be implemented by a processor calling computer-readable instructions stored in memory.

[0054] Example 1

[0055] Figure 1 This is a schematic flowchart illustrating a geostress prediction method based on plate tectonics provided in an embodiment of this disclosure. Figure 1 As shown, a geostress prediction method based on plate tectonics reconstruction includes:

[0056] S101. Based on historical geological data of the target area, determine the tectonic period of the target area; wherein the historical geological data includes at least one of the following: seismic data and well logging data, and the tectonic period is used to indicate the period of movement of the target area.

[0057] In the embodiments of this disclosure, historical geological data of the target area can be determined by collecting seismic geological data of the target area.

[0058] Here, historical geological data of the target area can be summarized to determine the historical geological movements of the target area, thereby identifying the different tectonic periods in the target area caused by these geological movements.

[0059] Here, earthquake data can refer to earthquake science sensing data.

[0060] The seismic data includes, but is not limited to, pre-stack seismic data.

[0061] Here, pre-stack seismic data can be processed to obtain post-stack seismic data, which can then be identified as historical geological data.

[0062] S102. Based on the construction period, determine the plate reconstruction model and the target topological mesh; wherein, the target topological mesh is a closed polygonal region in the target region that changes over time.

[0063] In embodiments of this disclosure, firstly, a plate reconstruction model can be determined based on the tectonic period. Then, a target topological mesh can be determined based on the plate reconstruction model and the tectonic period.

[0064] Here, multiple topologically deformable polygonal meshes can be created for each construction period.

[0065] Then, the topologically deformed polygonal meshes from each construction period can be determined as the target topological mesh.

[0066] Among them, the topologically deformable polygon mesh is a closed polygon constrained by multiple plate boundaries, which changes over time.

[0067] S103. Based on the plate reconstruction model, determine the geostress parameters of the target area.

[0068] In embodiments of this disclosure, geostress parameters corresponding to the plate reconstruction model can be determined in a plate tectonics geographic information system platform (GPlates platform).

[0069] Here, the geostress parameters include at least one of the following: the latitude and longitude coordinates of the target area, the principal strain major angle / azimuth, the principal strain major axis, the principal strain minor axis, the dilatation strain rate, and the strain rate style.

[0070] The angle or azimuth of the principal stress direction can be selected. For example, the angle range of the principal stress direction is [-90, 90], with 0 pointing east; the azimuth range is [0, 180], with 0 pointing north.

[0071] S104. Based on the target topology grid and the geostress parameters, the target geostress of the target area is obtained by processing.

[0072] In embodiments of this disclosure, the target geostress can be obtained by weighted vector summation of the target topological mesh and geostress parameters.

[0073] In embodiments of this disclosure, firstly, based on historical geological data of the target area, the tectonic period of the target area is determined; wherein the historical geological data includes at least one of the following: seismic data and well logging data, and the tectonic period is used to indicate the period of movement of the target area; secondly, based on the tectonic period, a plate reconstruction model and a target topological grid are determined; wherein the target topological grid is a closed polygonal region in the target area that changes over time; thirdly, based on the plate reconstruction model, the geostress parameters of the target area are determined; finally, based on the target topological grid and the geostress parameters, the target geostress of the target area is obtained.

[0074] In the above implementation, the geological movement state of the target area is determined to obtain its tectonic period. Then, a plate reconstruction model is constructed for the target area. Subsequently, the target in-situ stress is determined using the tectonic period and the plate reconstruction model. By considering internal data from multiple geological movements and constrained by the geological tectonic background, in-situ stress prediction is systematically performed for the target area to obtain the target in-situ stress. This method can be applied to target areas of various sizes without contradicting the geological tectonic background, thus improving the accuracy of in-situ stress prediction.

[0075] Example 2

[0076] Based on the above embodiments, the tectonic period of the target area is determined based on historical geological data of the target area, specifically including the following steps:

[0077] First, the historical geological data is structurally interpreted to obtain the tectonic development history of the target area;

[0078] Then, based on the aforementioned structural development history, the structural period is determined.

[0079] In embodiments of this disclosure, historical geological data can be obtained by collecting seismic geological data of the target area (e.g., searching for seismic geological data of the target area in literature).

[0080] Afterwards, the historical geological data can be structurally interpreted to summarize the tectonic development history of the target area.

[0081] Example 3

[0082] Based on the above embodiments, and based on the construction period, the plate reconstruction model and target topology mesh are determined, specifically including the following steps:

[0083] First, based on the aforementioned tectonic period, a plate reconstruction model suitable for the plate tectonic geographic information system platform is determined;

[0084] Then, based on the historical geological data and the target topology grid, the movement of each sub-target area within the target area is determined;

[0085] Finally, based on the motion and the plate reconstruction model, the target topology mesh is determined.

[0086] In embodiments of this disclosure, a historical plate reconstruction model on a plate tectonics geographic information system platform can be evaluated based on the tectonic period, and the plate reconstruction model that includes the tectonic period can be selected from the historical plate reconstruction models.

[0087] For example, the similarity between the tectonic period and the historical plate reconstruction model on the plate tectonics geographic information system platform is determined, and the historical plate reconstruction model with the highest tectonic period is identified as the plate reconstruction module for the target area.

[0088] Here, based on historical geological data of the target area, the selected plate reconstruction model can be supplemented and modified according to the plate in which the target area is located.

[0089] Subsequently, tectonic lines for each tectonic period can be created in the plate reconstruction model to constrain the movement of the plate containing the target region, thereby obtaining the movement of each sub-target region within the target region. That is, the movement of the target region in each tectonic period.

[0090] Here, multiple topologically deformable polygonal meshes can be established at each tectonic stage in the plate reconstruction model to obtain multiple sub-target regions.

[0091] Then, you can select the sub-target region at each time point in sequence to create Deforming MeshPoints, and keep the time span consistent with the Deforming Mesh to obtain the target topology mesh.

[0092] Afterwards, the grid point density and initial crustal thickness can be adjusted to suit different target areas.

[0093] Example 4

[0094] Based on the above embodiments, the geostress parameters of the target area are determined based on the plate reconstruction model, specifically including the following steps:

[0095] First, determine the deformable mesh points for each of the sub-target regions;

[0096] Then, in the plate tectonics geographic information system platform, the sub-geostress parameters of each of the deformed grid points are determined, and each of the sub-geostress parameters is determined as the geostress parameters of the target area.

[0097] In the embodiments of this disclosure, after the deformation grid points are determined, the geostress-related data contained in the deformation grid points, namely the aforementioned geostress parameters, can be exported from the plate tectonics geographic information system platform.

[0098] Here, the geostress parameters include at least one of the following: latitude and longitude coordinates, principal strain major angle / azimuth (either angle or azimuth can be selected, where the angle range is [-90, 90], with 0 pointing east; the azimuth range is [0, 180], with 0 pointing north), principal strain major axis, principal strain minor axis, dilatation strain rate, and strain rate style.

[0099] Example 5

[0100] Based on the above embodiments, the target geostress of the target region is obtained by processing the target topology grid and the geostress parameters, specifically including the following steps:

[0101] Based on the target topology grid and the geostress parameters, geostress prediction is performed to obtain the initial geostress of the target region in each of the tectonic periods;

[0102] The target geostress of the target region is obtained by weighted summation based on the initial geostresses.

[0103] In the above embodiments, the average principal stress direction and average strain rate of each sub-target region in the target region during each construction period can be determined.

[0104] First, the principal stress directions and strain rates of each sub-target region at each tectonic stage can be determined. Second, the average principal stress directions and strain rates of each sub-target region can be calculated to obtain the average principal stress direction and average strain rate.

[0105] Subsequently, the average principal stress direction and average strain rate of each sub-target region can be determined as the initial geostress.

[0106] Example 6

[0107] Based on the above embodiments, the target geostress of the target area is obtained by performing a weighted summation based on the initial geostresses, specifically including the following steps:

[0108] First, determine the geological activity of the target area during each of the tectonic periods;

[0109] Then, based on the geological activity, the weighting coefficients of the target area in each of the tectonic periods are determined;

[0110] Finally, the target ground stress is obtained by performing a weighted summation based on the weighting coefficients and the initial ground stress.

[0111] In embodiments of this disclosure, the geological activity of each tectonic period can be determined based on historical geological data.

[0112] For example, the geological structure was relatively active during the Quaternary tectonic movement; the Mesozoic and Cenozoic tectonic movements had a lower impact on the current geostress field than the Quaternary tectonic movement; the Paleozoic tectonic movements had a lower impact than the Mesozoic and Cenozoic tectonic movements; and the Mesozoic and Cenozoic tectonic movements had a lower impact than the Paleozoic tectonic movements, meaning that the impact was mainly reflected in the deep crust as a background stress field.

[0113] Here, the higher the tectonic activity, the greater the weighting coefficient. For example, the Quaternary tectonic movement was relatively active, with a weighting coefficient of 40%-60%; the Mesozoic and Cenozoic tectonic movements still have a significant impact on the present-day geostress field, with a weighting coefficient of 20%-40%; the Paleozoic tectonic movements still retain some residual stress, with a weighting coefficient of 10%-20%; and the Precambrian tectonic activity (such as the Archean and Proterozoic tectonic movements) is mainly reflected in the deep crust as a background stress field, with a weighting coefficient of 5%-10%.

[0114] Here, the sum of the weighting coefficients for each structural period is 1.

[0115] Example 7

[0116] Based on the above embodiments, this embodiment provides a schematic diagram of the specific process of a geostress prediction method based on plate reconstruction. For example... Figure 2 As shown, where:

[0117] S10. Identify the seismic data and well logging data of the target area as historical geological data.

[0118] S20. Perform structural interpretation on historical geological data to obtain the tectonic development history of the target area.

[0119] S30. Based on the historical geological data and the target topology grid, determine the movement of each sub-target area within the target area.

[0120] S40. Based on the motion and the plate reconstruction model, determine the target topological mesh.

[0121] S50. Based on the aforementioned tectonic period, determine the plate reconstruction model.

[0122] S60. Based on the plate reconstruction model, determine the geostress parameters of the target area.

[0123] S70. Based on the target topology grid and the geostress parameters, geostress prediction is performed to obtain the initial geostress of the target region in each of the tectonic periods.

[0124] S80. Based on the initial ground stresses, a weighted summation process is performed to obtain the target ground stress of the target area.

[0125] Example 8

[0126] Based on the above embodiments, this embodiment provides a specific implementation.

[0127] Reference Figure 3 As shown, this is a plate reconstruction map for geostress prediction based on plate reconstruction, provided in an embodiment of this disclosure, wherein:

[0128] First, regional seismic and geological data were collected to summarize the tectonic history, identifying four major tectonic movements: the Late Paleozoic Caledonian Movement (approximately 400 Ma), the Early Mesozoic Indosinian Movement (approximately 200 Ma), the Early Cenozoic Himalayan Movement (approximately 45 Ma), and the Holocene Neotectonic Movement (0 Ma). After evaluation, the Cao_etal_GR_SouthChina model was selected. This model reconstructs ages ranging from 410 to 0 Ma and includes the main deformation boundaries and tectonic elements of the Eurasian Plate.

[0129] Then, in the GPlates model, topologically deformable polygonal meshes were created for the four tectonic periods, and the main fault data for each period were loaded. Four deformable meshes were selected sequentially, and deformable mesh points at the same time were created, with the mesh point density set to 7 (interval approximately 0.3 degrees) and the initial crustal thickness set to 40 km. The geostress-related data contained in the deformable mesh points were exported from the GPlates platform, including latitude and longitude coordinates, the direction of maximum principal stress (in this case, the unit is angle), the maximum principal strain axis, the minimum principal strain axis, the dilatational strain rate, and the strain rate pattern.

[0130] Reference Figure 4 The image shown is a tectonic stress distribution map for geostress prediction based on plate reconstruction, provided in an embodiment of this disclosure, wherein:

[0131] Then, the designated area was delineated, and the regional average principal stress direction and strain rate for the four periods were obtained by filtering by latitude and longitude and performing vector calculations (e.g., Figure 4 As shown, positive values ​​represent tension, and negative values ​​represent compression.

[0132] Reference Figure 5 The diagram shown is a linear tectonic stress graph for geostress prediction based on plate reconstruction, provided in an embodiment of this disclosure, wherein:

[0133] Finally, a vector weighted summation is performed to obtain the regional stress direction and strain rate. Figure 4 Among them, the weight of neotectonic movement is set at 50%, the weight of Himalayan tectonic movement is set at 30%, the weight of Indosinian tectonic movement is set at 10%, and the weight of Caledonian tectonic movement is set at 10%.

[0134] The predicted regional principal stress direction is similar to that of the well surface microseismic monitoring results (NE-SW), which shows that the above process can systematically and effectively predict geostress under the constraints of geological tectonic background.

[0135] The above embodiments consider the superposition of multiple tectonic movements in various geological periods and are constrained by the tectonic movements of multi-plate coupling, which is more in line with geological understanding. The geostress prediction results of this invention do not depend on well logging data, have low randomness, strong stability and applicability, and can be applied to any work area in the world. For specific work areas, interactive operations can be performed in the GPlates model, or reasonable corrections and improvements can be made to plate movements based on the latest seismic geological data, or small-scale tectonic lines can be added to refine the topological deformation grid, ultimately realizing basin-scale geostress zoning analysis.

[0136] Example 9

[0137] Based on the above embodiments and the same inventive concept, this disclosure also provides a geostress prediction device based on plate reconstruction, which corresponds to the geostress prediction method based on plate reconstruction. Since the principle of the device in this disclosure is similar to the geostress prediction method based on plate reconstruction described above, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be described again.

[0138] Reference Figure 6 The diagram shown is a schematic representation of a geostress prediction device based on plate tectonics according to an embodiment of this disclosure. The device includes: a first determining module 11, a second determining module 12, a third determining module 13, and a processing module 14; wherein:

[0139] The first determining module is used to determine the tectonic period of the target area based on historical geological data of the target area; wherein the historical geological data includes at least one of the following: seismic data and well logging data, and the tectonic period is used to indicate the period of movement of the target area;

[0140] The second determining module is used to determine the plate reconstruction model and the target topological mesh based on the construction period; wherein the target topological mesh is a closed polygonal region in the target region that changes over time;

[0141] The third determining module is used to determine the geostress parameters of the target area based on the plate reconstruction model.

[0142] The processing module is used to process the target topology grid and the geostress parameters to obtain the target geostress of the target area.

[0143] Specifically, the first determining module is also used to perform structural interpretation on the historical geological data to obtain the tectonic development history of the target area;

[0144] Based on the aforementioned tectonic development history, the tectonic period is determined.

[0145] Specifically, the second determining module is also used to determine a plate reconstruction model suitable for the plate tectonics geographic information system platform based on the tectonic period;

[0146] Based on the historical geological data and the target topology grid, the movement of each sub-target area within the target area is determined;

[0147] Based on the motion and the plate reconstruction model, the target topological mesh is determined.

[0148] Furthermore, the second determining module is also used to determine the deformable mesh points of each of the sub-target regions;

[0149] In the plate tectonics geographic information system platform, the sub-geostress parameters of each of the deformed grid points are determined, and each of the sub-geostress parameters is determined as the geostress parameters of the target area.

[0150] Specifically, the processing module is also used to predict geostress based on the target topological grid and the geostress parameters, so as to obtain the initial geostress of the target region in each of the tectonic periods;

[0151] The target geostress of the target region is obtained by weighted summation based on the initial geostresses.

[0152] Furthermore, the processing module is also used to determine the geological activity of the target area during each of the tectonic periods;

[0153] Based on the geological activity, the weighting coefficients of the target area in each of the tectonic periods are determined;

[0154] The target ground stress is obtained by performing a weighted summation based on the weighting coefficients and the initial ground stress.

[0155] This embodiment determines the geological movement state of the target area to obtain its tectonic period. Then, a plate reconstruction model is constructed for the target area. Subsequently, the target in-situ stress is determined using the tectonic period and the plate reconstruction model. By considering internal data from multiple geological movements and constrained by the geological tectonic background, in-situ stress prediction is systematically performed for the target area to obtain the target in-situ stress. This method can be applied to target areas of various sizes without contradicting the geological tectonic background, thus improving the accuracy of in-situ stress prediction.

[0156] The processing flow of each module in the device and the interaction flow between each module can be referred to the relevant descriptions in the above method embodiments, and will not be detailed here.

[0157] Example 10

[0158] Corresponding to Figure 1 The present disclosure also provides an electronic device 700, such as a plate-reconstruction-based geostress prediction method. Figure 7 The diagram shown is a structural schematic of an electronic device 700 provided in an embodiment of this disclosure, including:

[0159] The system includes a processor 71, a memory 72, and a bus 73. The memory 72 stores execution instructions and includes main memory 721 and external memory 722. The main memory 721, also called internal memory, temporarily stores the computational data in the processor 71, as well as data exchanged with external memory such as a hard disk. The processor 71 exchanges data with the external memory 722 through the main memory 721. When the electronic device 700 is running, the processor 71 communicates with the memory 72 through the bus 73, causing the processor 71 to execute the following instructions:

[0160] Based on historical geological data of the target area, the tectonic period of the target area is determined; wherein, the historical geological data includes at least one of the following: seismic data and well logging data, and the tectonic period is used to indicate the period of movement of the target area;

[0161] Based on the aforementioned construction period, a plate reconstruction model and a target topological mesh are determined; wherein, the target topological mesh is a closed polygonal region in the target region that changes over time;

[0162] Based on the plate reconstruction model, the geostress parameters of the target area are determined;

[0163] The target geostress of the target region is obtained by processing the target topology grid and the geostress parameters.

[0164] Example 10

[0165] Based on the above embodiments, this embodiment provides a computer device, including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the method described in the above embodiments.

[0166] In some embodiments of this example, a computer-readable storage medium is provided, on which a computer program is stored, which, when executed by a processor, implements the steps of the method described in the above embodiments.

[0167] In some embodiments of this example, a computer program product is provided, including a computer program / instructions, which, when executed by a processor, implements the steps of the method described in the above embodiments.

[0168] The processor may include, but is not limited to, one or more processors or microprocessors. Each processor may be implemented as an Application Specific Integrated Circuit (ASIC), Digital Signal Processor (DSP), Digital Signal Processing Device (DSPD), Programmable Logic Device (PLD), Field Programmable Gate Array (FPGA), controller, microcontroller, microprocessor, or other electronic component, for executing the methods described in the above embodiments.

[0169] Computer-readable storage media can be implemented by any type of volatile or non-volatile storage device or a combination thereof. Computer-readable storage media may include, but are not limited to, random access memory (RAM), read-only memory (ROM), flash memory, EPROM memory, EEPROM memory, registers, and computer storage media (e.g., hard disks, floppy disks, solid-state drives, removable disks, CD-ROMs, DVD-ROMs, Blu-ray discs, etc.).

[0170] Computer-readable storage media may also store at least one computer-executable program / instruction, such as computer-readable instructions. Computer-readable storage media include, but are not limited to, volatile memory and / or non-volatile memory. Volatile memory may include, for example, random access memory (RAM) and / or cache memory. Computer-readable storage media may include, for example, read-only memory (ROM), hard disk, flash memory, etc. For example, a non-transitory computer-readable storage medium may be connected to a computing device such as a computer, and then, when the computing device executes the computer-readable instructions stored on the computer-readable storage medium, the various methods described above can be performed.

[0171] In addition, the computer device may include (but is not limited to) a data bus, an input / output (I / O) bus, a display, and input / output devices (e.g., keyboard, mouse, speakers, etc.).

[0172] The processor can communicate with external devices via the I / O bus through wired or wireless networks.

[0173] In one embodiment, the at least one computer-executable instruction may also be compiled into or comprise a software product / computer program product, wherein one or more computer-executable instructions are executed by a processor to perform the steps of the various functions and / or methods in the embodiments described herein.

[0174] In the embodiments provided in this disclosure, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative; for example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0175] It should be noted that, in this disclosure, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element limited by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0176] While the embodiments disclosed herein are as described above, the foregoing content is merely for the purpose of facilitating understanding of this disclosure and is not intended to limit this disclosure. Any person skilled in the art to which this disclosure pertains may make any modifications and changes in form and detail of the implementation without departing from the spirit and scope of this disclosure; however, the scope of patent protection of this disclosure shall still be determined by the scope defined in the appended claims.

Claims

1. A method for predicting geostress based on plate tectonics reconstruction, characterized in that, include: Based on historical geological data of the target area, the tectonic period of the target area is determined; wherein, the historical geological data includes at least one of the following: seismic data and well logging data, and the tectonic period is used to indicate the period of movement of the target area; Based on the aforementioned construction period, a plate reconstruction model and a target topological mesh are determined; wherein, the target topological mesh is a closed polygonal region in the target region that changes over time; Based on the plate reconstruction model, the geostress parameters of the target area are determined; The target geostress of the target region is obtained by processing the target topology grid and the geostress parameters.

2. The method according to claim 1, characterized in that, The determination of the tectonic period of the target area based on historical geological data of the target area includes: By performing structural interpretation on the historical geological data, the tectonic development history of the target area can be obtained; Based on the aforementioned tectonic development history, the tectonic period is determined.

3. The method according to claim 1, characterized in that, The determination of the plate reconstruction model and target topological mesh based on the aforementioned construction period includes: Based on the aforementioned tectonic period, a plate reconstruction model suitable for the plate tectonic geographic information system platform is determined; Based on the historical geological data, the movement of each sub-target area within the target area is determined; Based on the motion and the plate reconstruction model, the target topological mesh is determined.

4. The method according to claim 3, characterized in that, The determination of geostress parameters for the target region based on the plate reconstruction model includes: Determine the deformable mesh points for each of the sub-target regions; In the plate tectonics geographic information system platform, the sub-geostress parameters of each of the deformed grid points are determined, and each of the sub-geostress parameters is determined as the geostress parameters of the target area.

5. The method according to claim 1, characterized in that, The process of processing based on the target topology grid and the geostress parameters to obtain the target geostress in the target region includes: Based on the target topology grid and the geostress parameters, geostress prediction is performed to obtain the initial geostress of the target region in each of the tectonic periods; The target geostress of the target region is obtained by weighted summation based on the initial geostresses.

6. The method according to claim 5, characterized in that, The step of performing a weighted summation based on each of the initial geostresses to obtain the target geostress in the target area includes: Determine the geological activity of the target area during each of the tectonic periods; Based on the geological activity, the weighting coefficients of the target area in each of the tectonic periods are determined; The target ground stress is obtained by performing a weighted summation based on the weighting coefficients and the initial ground stress.

7. A geostress prediction device based on plate tectonics reconstruction, characterized in that, include: The first determining module is used to determine the tectonic period of the target area based on historical geological data of the target area; wherein the historical geological data includes at least one of the following: seismic data and well logging data, and the tectonic period is used to indicate the period of movement of the target area; The second determining module is used to determine the plate reconstruction model and the target topological mesh based on the construction period; wherein the target topological mesh is a closed polygonal region in the target region that changes over time; The third determining module is used to determine the geostress parameters of the target area based on the plate reconstruction model. The processing module is used to process the target topology grid and the geostress parameters to obtain the target geostress of the target area.

8. A computer device, comprising a memory, a processor, and a computer program stored in the memory, characterized in that, The processor executes the computer program to implement the steps of the method according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the steps of the method according to any one of claims 1 to 6.

10. A computer program product comprising a computer program / instructions, characterized in that, When executed by a processor, the computer program implements the steps of the method according to any one of claims 1 to 6.

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