A method and device for determining geological structure azimuth

Abstract

The present invention provides a method and apparatus for determining the azimuth of a geological structure. The method comprises: acquiring seismic imaging data of a target work area where a target geological structure is located; determining, based on the seismic imaging data, characterizing parameters of a survey line corresponding to the target geological structure; and determining the azimuth of the target geological structure based on the characterizing parameters. The present invention calculates the azimuth of the underground structure based on relatively simple underground structure slope information, thus providing a method for determining the azimuth of a geological structure with broad applicability.

Description

Technical Field

[0001] The present invention relates to the field of geophysical exploration technology, particularly to the field of underground structure characterization technology in geophysical exploration, and more particularly to a method and device for determining the azimuth of a geological structure. Background Art

[0002] In geophysical exploration, clarifying the azimuth of underground structures and obtaining relatively accurate azimuth data are crucial for both seismic data processing and interpretation. For example, in seismic data processing, azimuth information can be used to constrain or smooth structures using prior information, and can also provide azimuth information for anisotropic modeling and imaging. In seismic data interpretation, azimuth data can be used to predict fracture directions and locate underground oil and gas reservoirs, making it essential foundational data for reservoir description and prediction.

[0003] In the existing technology, compasses and geological tools are usually used to predict the azimuth of geological outcrops on the ground or the cored parts of well logging rocks, so as to infer the azimuth information of underground strata and structures. This method can achieve certain results in areas with stable sedimentation or relatively simple structures, but the prediction accuracy decreases with the increase of exploration depth. Another method is to directly measure the underground azimuth corresponding to the wellhead position by placing three-component detectors and other equipment in the well during the logging process, and then extrapolate the entire work area. This method requires relatively accurate measurement of the wellhead position, and as the extrapolation distance increases, the accuracy of the determined azimuth gradually decreases. In addition, in the early stages of exploration, there is usually no logging data available. Summary of the Invention

[0004] One object of the present invention is to provide a method for determining the azimuth of a geological structure. The method first acquires seismic imaging data of a target work area where a target geological structure is located; then, based on the seismic imaging data, characterization parameters of the survey line corresponding to the target geological structure are determined; and finally, based on the characterization parameters, the azimuth of the target geological structure is determined. This method calculates the azimuth information of the underground structure based on information such as the slope of the underground structure, which is relatively simple to obtain, and has strong applicability. Another object of the present invention is to provide an apparatus for determining the azimuth of a geological structure. Yet another object of the present invention is to provide a computer device comprising a memory and a processor, the memory storing a computer program, which implements the steps of the method for determining the azimuth of a geological structure when the processor executes the computer program. Yet another object of the present invention is to provide a readable medium storing a computer program, which implements the steps of the method for determining the azimuth of a geological structure when the processor executes the computer program.

[0005] In order to achieve the above objectives, the present invention discloses a method for determining the azimuth of a geological structure, comprising:

[0006] Acquire seismic imaging data of the target work area where the target geological structure is located;

[0007] Determining, based on the seismic imaging data, characterization parameters of the survey line corresponding to the target geological structure;

[0008] The azimuth of the target geological structure is determined according to the characterization parameters.

[0009] In one embodiment, obtaining seismic imaging data of a target work area where a target geological structure is located includes:

[0010] Obtain terrain data of the target work area;

[0011] Determining grid data according to the terrain data of the target work area;

[0012] determining acquisition data of the seismic imaging data according to the grid data and the terrain data;

[0013] The seismic imaging data is acquired according to the acquired data.

[0014] In one embodiment, the survey line direction includes: a main survey line and a connecting line.

[0015] In one embodiment, the characterization parameter is an inclination angle.

[0016] In one embodiment, determining the azimuth of the target geological structure according to the characterization parameter includes:

[0017] determining an azimuth of a current underground point, wherein the current underground point is located in the target geological structure;

[0018] The azimuth of the target geological structure is determined based on the azimuths of multiple current underground points.

[0019] In one embodiment, determining the azimuth of the current underground point includes:

[0020] respectively determining the positive and negative values ​​of the inclination angle of the main survey line and the positive and negative values ​​of the inclination angle of the connecting survey line;

[0021] Determining the quadrant to which the current underground point belongs based on the positive and negative values ​​of the inclination angle of the main survey line and the positive and negative values ​​of the inclination angle of the connecting survey line;

[0022] Determine and calculate the azimuth model corresponding to the azimuth according to the quadrant;

[0023] The azimuth of the current underground point is determined according to the inclination of the main survey line, the inclination of the tie line, and the azimuth model.

[0024] In one embodiment, respectively determining the positive and negative values ​​of the inclination angle of the main survey line and the positive and negative values ​​of the inclination angle of the connecting survey line includes:

[0025] respectively determining the slope of the main survey line and the slope of the connecting survey line;

[0026] Determining a positive or negative value of the inclination angle of the main survey line according to the slope of the main survey line;

[0027] The positive or negative value of the inclination angle of the tie line is determined according to the slope of the tie line.

[0028] The present invention also discloses a device for determining the azimuth of a geological structure, comprising:

[0029] A seismic imaging data acquisition module is used to acquire seismic imaging data of a target work area where a target geological structure is located;

[0030] a characterization parameter determination module, configured to determine the characterization parameters of the survey line corresponding to the target geological structure based on the seismic imaging data;

[0031] An azimuth determination module is used to determine the azimuth of the target geological structure according to the characterization parameters.

[0032] In one embodiment, the seismic imaging data acquisition module includes:

[0033] A terrain data acquisition unit, used to acquire terrain data of a target work area;

[0034] A grid data acquisition unit, configured to determine grid data based on the terrain data of the target work area;

[0035] an acquisition data determining unit, configured to determine acquisition data for the seismic imaging data based on the grid data and the terrain data;

[0036] A seismic imaging data acquisition unit is used to acquire the seismic imaging data according to the acquired data.

[0037] In one embodiment, the survey line direction includes: a main survey line and a connecting line.

[0038] In one embodiment, the characterization parameter is an inclination angle.

[0039] In one embodiment, the azimuth angle determination module includes:

[0040] a point azimuth determining unit, configured to determine the azimuth of a current underground point, the current underground point being located in the target geological structure;

[0041] The block azimuth determination unit is used to determine the azimuth of the target geological structure according to the azimuths of multiple current underground points.

[0042] In one embodiment, the point azimuth determination unit includes:

[0043] a positive and negative value determining unit, configured to respectively determine the positive and negative values ​​of the inclination angle of the main survey line and the positive and negative values ​​of the inclination angle of the connecting survey line;

[0044] a quadrant determining unit, configured to determine the quadrant to which the current underground point belongs based on the positive and negative values ​​of the inclination angle of the main survey line and the positive and negative values ​​of the inclination angle of the connecting survey line;

[0045] A model determining unit, configured to determine and calculate an azimuth model corresponding to the azimuth according to the quadrant;

[0046] The point azimuth determination subunit is used to determine the azimuth of the current underground point according to the inclination of the main survey line, the inclination of the tie line and the azimuth model.

[0047] In one embodiment, the positive and negative value determination unit includes:

[0048] a slope determination unit, configured to determine the slope of the main survey line and the slope of the connecting survey line respectively;

[0049] A first positive and negative value determination unit is used to determine the positive and negative value of the inclination of the main survey line according to the slope of the main survey line;

[0050] The second positive and negative value determination unit is used to determine the positive and negative values ​​of the inclination angle of the tie line according to the slope of the tie line.

[0051] The present invention also discloses a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor.

[0052] When the processor executes the program, the method described above is implemented.

[0053] The present invention also discloses a computer readable medium having a computer program stored thereon.

[0054] When the program is executed by a processor, the above-mentioned method is implemented.

[0055] As can be seen from the above description, the method and device for determining the azimuth of a geological structure provided in an embodiment of the present invention first obtain seismic imaging data of the target work area where the target geological structure is located; then, characterization parameters of the survey line corresponding to the target geological structure are determined based on the seismic imaging data; finally, the azimuth of the target geological structure is determined based on the characterization parameters.

[0056] This method calculates the azimuth of underground structures based on relatively simple underground structure slope information, making it highly applicable. First, three-dimensional slope information of the underground structure is calculated based on the seismic imaging data volume, including the slope of the main survey line and the slope of the tie line. This information is then used to determine the azimuth information corresponding to all sampling points in the underground space. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0058] Figure 1 Schematic diagram of the flow of the method for determining the azimuth of a geological structure in Example 1 of the present invention;

[0059] Figure 2 1 is a flow chart of step 100 of a method for determining a geological structure azimuth in a first embodiment of the present invention;

[0060] Figure 3 3 is a flow chart of step 300 of the method for determining the azimuth of a geological structure in the first embodiment of the present invention;

[0061] Figure 4 301 is a flow chart of the method for determining the azimuth of a geological structure in the first embodiment of the present invention;

[0062] Figure 5 30 is a flow chart of step 3011 of the method for determining the azimuth of a geological structure in the first embodiment of the present invention;

[0063] Figure 6 Schematic diagram of the flow of a method for determining the azimuth of a geological structure in Embodiment 2 of the present invention;

[0064] Figure 7 A schematic diagram of a cross section of a seismic data volume input in the third embodiment of the present invention;

[0065] Figure 8 A schematic diagram of another seismic data volume cross section input in the third embodiment of the present invention;

[0066] Figure 9 A schematic diagram of a slope profile corresponding to a main survey line direction input in embodiment 3 of the present invention;

[0067] Figure 10 A schematic diagram of a slope profile corresponding to another main survey line direction input in the third embodiment of the present invention;

[0068] Figure 11 A schematic diagram of a slope profile corresponding to a connecting survey line direction input in the third embodiment of the present invention;

[0069] Figure 12 A schematic diagram of a slope profile corresponding to another connecting survey line direction input in the third embodiment of the present invention;

[0070] Figure 13 This is a schematic diagram of an azimuth profile calculated in Example 3 of the present invention;

[0071] Figure 14 is a schematic diagram of another azimuth profile calculated in Example 3 of the present invention;

[0072] Figure 15 This is a structural block diagram of a method and apparatus for determining a geological structure azimuth in a fourth embodiment of the present invention;

[0073] Figure 16 Schematic diagram of the structure of an electronic device in an embodiment of the present invention. DETAILED DESCRIPTION

[0074] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0075] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0076] Example 1

[0077] In this embodiment, Figure 1 As shown, a method for determining the azimuth of a geological structure is provided, which includes:

[0078] Step 100: Acquire seismic imaging data of a target work area where a target geological structure is located;

[0079] A structural framework model is established based on the time-domain post-stack seismic data of the target area and the depth-domain well data of the test wells. Next, the depth-domain well data are converted to a time-domain well data, which is then used to calibrate the structural framework model. Next, the structural framework model is established using the time-domain post-stack seismic data to obtain an initial velocity model. Finally, the initial velocity model and pre-stack depth migration technology are used to process the pre-stack seismic data to obtain seismic images.

[0080] Step 200: Determine the characterization parameters of the survey line corresponding to the target geological structure based on the seismic imaging data;

[0081] Preferably, the characterization parameter in step 200 is the inclination of the survey line corresponding to the target geological structure.

[0082] Step 300: Determine the azimuth of the target geological structure according to the characterization parameters.

[0083] It should be noted that the azimuth of a geological structure refers to the horizontal angle between a geological structure line (such as a fault or fold) on the Earth's surface and a reference direction. Typically, azimuth is measured relative to geographic north and expressed as a 360-degree circle.

[0084] In this embodiment, azimuth is measured using the following convention: angles are measured clockwise from north, with north being 0 degrees, east being 90 degrees, south being 180 degrees, and west being 270 degrees. Therefore, if a geological structure line makes an angle of 30 degrees with the north, its azimuth is 30 degrees. If it makes an angle of 120 degrees with the east, its azimuth is 120 degrees, and so on.

[0085] From the above description, it can be seen that the method for determining the azimuth of a geological structure provided in an embodiment of the present invention first obtains seismic imaging data of the target work area where the target geological structure is located; then, based on the seismic imaging data, characterization parameters of the survey line corresponding to the target geological structure are determined; finally, the azimuth of the target geological structure is determined based on the characterization parameters.

[0086] This method calculates the azimuth of underground structures based on relatively simple underground structure slope information, making it highly applicable. First, three-dimensional slope information of the underground structure is calculated based on the seismic imaging data volume, including the slope of the main survey line and the slope of the tie line. This information is then used to determine the azimuth information corresponding to all sampling points in the underground space.

[0087] In one embodiment, if Figure 2 As shown, step 100 includes:

[0088] Step 101: Acquire terrain data of the target work area;

[0089] First, understand the topography of the seismic survey area. The main survey line is usually chosen to be perpendicular to the topographic undulations to maximize coverage of different geological structures.

[0090] Step 102: determining grid data according to the terrain data of the target work area;

[0091] When planning the main survey lines, the density of data collection also needs to be considered. More dense main survey lines can provide higher-resolution subsurface information, but this also increases exploration costs.

[0092] Step 103: determining acquisition data of the seismic imaging data according to the grid data and the terrain data;

[0093] Based on the purpose of the exploration, select the main survey line direction that can most effectively obtain relevant information. For example, if the goal is to explore a specific structure, the main survey line direction corresponding to the structure's strike can be selected.

[0094] Step 104: Acquire the seismic imaging data according to the acquired data.

[0095] Seismic imaging data is typically presented as seismic profiles, which can be two-dimensional (2D) or three-dimensional (3D). In a 2D seismic profile, seismic data is collected along a survey line; in a 3D seismic profile, seismic data is collected in space as a cube or grid.

[0096] In one embodiment, the survey line direction includes: a main survey line and a connecting line.

[0097] The main survey line direction refers to the direction along which data is collected along the seismic profile (survey line). Typically, the main survey line direction is selected perpendicular to the terrain and other conditions to obtain the most comprehensive underground information possible.

[0098] Tie lines are secondary survey lines perpendicular to the main survey lines. They are used to supplement the main survey line data and improve the reliability and accuracy of the exploration results. In this embodiment, the tie lines have the following requirements:

[0099] a. Vertical direction: The contact line should be perpendicular to the main survey line. This will allow it to cover more underground information and detect targets that may be missed on the main survey line.

[0100] b. Uniform spacing: Interconnection lines are usually arranged at uniform spacing on the main survey line. This can effectively supplement the main survey line data and improve the comprehensiveness of data collection.

[0101] c. Consider predictive models: When planning tie lines, seismic data processing and predictive models can be used to determine the optimal tie line direction and spacing.

[0102] In one embodiment, the characteristic parameter of the survey line corresponding to the target geological structure is the inclination angle.

[0103] In one embodiment, Figure 3 As shown, step 300 includes:

[0104] Step 301: Determine the azimuth of a current underground point, where the current underground point is located in the target geological structure;

[0105] Step 302: Determine the azimuth of the target geological structure based on the azimuths of multiple current underground points.

[0106] In steps 301 and 302, the azimuth of the current point in the target geological structure is first determined, and then the azimuths of multiple other points similar to the current point are determined, and the azimuths of the multiple points are sorted to form the azimuth of the target geological structure. It should be noted that in step 302, "multiple" includes at least the azimuths of two current underground points, and may not include all points of the target geological structure. When the azimuth of the underground point is sufficient to determine the azimuth of the target geological structure, there is no need to perform operations such as steps 301 and 302 on the azimuths of the remaining points.

[0107] In one embodiment, Figure 4 As shown, step 301 includes:

[0108] Step 3011: respectively determining the positive and negative values ​​of the inclination angle of the main survey line and the positive and negative values ​​of the inclination angle of the connecting survey line;

[0109] Step 3012: determining the quadrant to which the current underground point belongs based on the positive and negative values ​​of the inclination angle of the main survey line and the positive and negative values ​​of the inclination angle of the connecting survey line;

[0110] In step 3011 and step 3012, first, the positive and negative values ​​of the inclination of the main survey line and the positive and negative values ​​of the inclination of the connecting survey line are determined according to the slope of the main survey line direction and the slope of the connecting survey line respectively. Then, the quadrant to which the current underground point belongs is determined according to the positive and negative values ​​of the inclination of the main survey line and the positive and negative values ​​of the inclination of the connecting survey line (pre-divided into four quadrants according to the azimuth range of 0-360 degrees).

[0111] Step 3013: determining and calculating an azimuth angle model corresponding to the azimuth angle according to the quadrant;

[0112] On the basis of step 3012, the four quadrants correspond to four orientation models, and the corresponding orientation model is determined according to the quadrant to which the current point belongs.

[0113] Step 3014: Determine the azimuth of the current underground point according to the inclination of the main survey line, the inclination of the tie line, and the azimuth model.

[0114] On the basis of having determined the azimuth model corresponding to the current point, the inclination of the main survey line and the inclination of the tie line are input into the azimuth model to determine the azimuth of the current underground point.

[0115] In one embodiment, Figure 5 As shown, step 3011 includes:

[0116] Step 30111: respectively determining the slope of the main survey line and the slope of the connecting survey line;

[0117] Step 30112: Determine the positive or negative value of the inclination angle of the main survey line according to the slope of the main survey line;

[0118] Step 30113: Determine the positive or negative value of the inclination angle of the tie line according to the slope of the tie line.

[0119] In step 30112 and step 30113, an arctangent operation is performed on the slope of the main survey line and the slope of the tie survey line determined in step 3011 to determine the positive and negative values ​​of the inclination angle of the main survey line and the positive and negative values ​​of the inclination angle of the tie line.

[0120] As can be seen from the above description, the method for determining the azimuth of geological structures provided by the embodiment of the present invention calculates the azimuth information of underground structures based on the relatively simple acquisition method of underground structure slope information, and the method has strong applicability. First, the three-dimensional slope information of the underground structure is calculated based on the seismic imaging data volume, including the slope in the direction of the main survey line and the slope in the direction of the connecting line. On this basis, the mathematical algorithm proposed in this patent is used to perform trigonometric function calculations to obtain the azimuth information corresponding to all sampling points in the underground space.

[0121] Example 2

[0122] The present invention provides a method for determining the azimuth of a geological structure. Compared with the existing technology, this method calculates the azimuth information of the underground structure based on the underground structure slope information which is relatively simple to obtain, and has strong applicability. First, the three-dimensional slope information of the underground structure is calculated based on the seismic imaging data volume, including the slope in the direction of the main survey line and the slope in the direction of the connecting line. Specifically, Figure 6 As shown, the present invention includes the following steps:

[0123] S1: Input seismic 3D imaging data volume.

[0124] S2: Calculate the slope of the main survey line direction and the connecting line direction of the 3D data volume;

[0125] S3: Calculate the angles with the main survey line direction and the tie line direction (main survey line inclination and tie line inclination) based on the slope;

[0126] When seismic imaging data is obtained, the slopes of the main survey line and the tie line are calculated as S. x (i,j,k) and S y (i,j,k), then the main survey line inclination angle θ of the underground point (i,j,k) x (i, j, k) and the connecting lateral inclination angle θ y (i,j,k) can be expressed as:

[0127]

[0128] Where arctan represents the inverse tangent operation.

[0129] S4: Determine the quadrant of the azimuth angle based on the positive and negative inclination of the main survey line and the tie line, and obtain the azimuth arc value of each point according to the calculation formula of different quadrants;

[0130] Obtain the main survey line inclination θ x (i, j, k) and tie line inclination θ y After (i, j, k), the azimuth of the underground structure can be calculated according to the positive and negative classification and quadrant division of the two inclination angles. The range of azimuth is 0-360 degrees, usually divided into four quadrants, and the calculation method of different quadrants is different:

[0131] ①When θ x (i,j,k)≥0,θ y When (i,j,k)≥0, the azimuth is defined as the first quadrant, then

[0132]

[0133] Where β represents the stability factor, which is usually a smaller number.

[0134] ②When θ x (i,j,k)<0、θ y When (i,j,k)≥0, the azimuth is defined as the second quadrant, then

[0135]

[0136] ③When θ x (i,j,k)<0、θ y When (i,j,k)<0, the azimuth is defined as the third quadrant, then

[0137]

[0138] ④When θ x (i,j,k)≥0,θ y When (i,j,k)<0, the azimuth is defined as the fourth quadrant, then

[0139]

[0140] Here, β also represents the stability factor, which is usually a smaller number.

[0141] S5: Convert the radian value to the azimuth angle value.

[0142] Finally, by traversing all the imaging data sampling points, the azimuth information corresponding to the entire data volume can be obtained. Finally, the calculated radian A(i,j,k) can be converted to

[0143]

[0144] As can be seen from the above description, the method for determining the azimuth of geological structures provided in an embodiment of the present invention calculates the azimuth information of underground structures based on underground structure slope information, which is relatively simple to obtain. Therefore, this method has strong applicability. First, the three-dimensional slope information of the underground structure is calculated based on the seismic imaging data volume, including the slope in the direction of the main survey line and the slope in the direction of the connecting line. On this basis, the mathematical algorithm proposed in this patent is used to perform trigonometric function calculations to obtain the azimuth information corresponding to all sampling points in the underground space.

[0145] Example 3

[0146] To further illustrate the technical solution of this application and demonstrate the accuracy and effectiveness of the method for determining the azimuth of geological structures provided by this application, the present invention will be further described using a specific block as an example (i.e., using actual seismic data). In this specific application example, the process of determining the azimuth of geological structures is as follows:

[0147] 1) Input seismic 3D imaging data volume;

[0148] The input 3D seismic imaging data volume section is as follows: Figure 7 as well as Figure 8 shown.

[0149] 2) Calculate the slope of the main survey line direction and the connecting line direction of the 3D data volume;

[0150] like Figure 9 As shown in Figure 10, the slope profile of the main survey line direction is calculated using the 3D seismic imaging data volume. It can be seen that the extracted main survey line slope information has high accuracy and high signal-to-noise ratio.

[0151] like Figure 11 As shown in Figure 12, the slope profile of the tie line direction is calculated using the 3D seismic imaging data volume. It can be seen that the extracted tie line slope information has high accuracy and high signal-to-noise ratio.

[0152] 3) Calculate the angles with the main survey line direction and the tie line direction (main survey line inclination and tie line inclination) based on the slope;

[0153] 4) Determine the quadrant of the azimuth angle based on the positive and negative inclination of the main survey line and the tie line, and obtain the azimuth angle in radians of each point according to the calculation formulas for different quadrants;

[0154] 5) Convert the radian value to the azimuth angle value.

[0155] The azimuth profile corresponding to the 3D seismic imaging data volume calculated based on the slope of the main survey line and the slope of the tie line is as follows: Figure 13 As shown in Figure 14, the azimuth calculation is stable, no abnormal values ​​appear, and the results are in line with expectations.

[0156] From the above description, it can be seen that the method for determining the azimuth of a geological structure provided in an embodiment of the present invention first obtains seismic imaging data of the target work area where the target geological structure is located; then, based on the seismic imaging data, characterization parameters of the survey line corresponding to the target geological structure are determined; finally, the azimuth of the target geological structure is determined based on the characterization parameters.

[0157] This method calculates the azimuth of underground structures based on relatively simple underground structure slope information, making it highly applicable. First, three-dimensional slope information of the underground structure is calculated based on the seismic imaging data volume, including the slope of the main survey line and the slope of the tie line. This information is then used to determine the azimuth information corresponding to all sampling points in the underground space.

[0158] Example 4

[0159] Based on the same principle, this embodiment also discloses a device for determining the azimuth of a geological structure. Figure 15 As shown, in this embodiment, the device includes:

[0160] A seismic imaging data acquisition module 10 is used to acquire seismic imaging data of a target work area where a target geological structure is located;

[0161] a characterization parameter determination module 20, configured to determine the characterization parameters of the survey line corresponding to the target geological structure based on the seismic imaging data;

[0162] The azimuth angle determination module 30 is configured to determine the azimuth angle of the target geological structure according to the characterization parameters.

[0163] In one embodiment, the seismic imaging data acquisition module includes:

[0164] A terrain data acquisition unit, used to acquire terrain data of a target work area;

[0165] A grid data acquisition unit, configured to determine grid data based on the terrain data of the target work area;

[0166] an acquisition data determining unit, configured to determine acquisition data for the seismic imaging data based on the grid data and the terrain data;

[0167] A seismic imaging data acquisition unit is used to acquire the seismic imaging data according to the acquired data.

[0168] In one embodiment, the survey line direction includes: a main survey line and a connecting line.

[0169] In one embodiment, the characterization parameter is an inclination angle.

[0170] In one embodiment, the azimuth angle determination module includes:

[0171] a point azimuth determination unit, configured to determine the azimuth of a current underground point, the current underground point being located in the target geological structure;

[0172] The block azimuth determination unit is used to determine the azimuth of the target geological structure according to the azimuths of multiple current underground points.

[0173] In one embodiment, the point azimuth determination unit includes:

[0174] a positive and negative value determining unit, configured to respectively determine the positive and negative values ​​of the inclination angle of the main survey line and the positive and negative values ​​of the inclination angle of the connecting survey line;

[0175] a quadrant determining unit, configured to determine the quadrant to which the current underground point belongs based on the positive and negative values ​​of the inclination angle of the main survey line and the positive and negative values ​​of the inclination angle of the connecting survey line;

[0176] A model determining unit, configured to determine and calculate an azimuth model corresponding to the azimuth according to the quadrant;

[0177] The point azimuth determination subunit is used to determine the azimuth of the current underground point according to the inclination of the main survey line, the inclination of the tie line and the azimuth model.

[0178] In one embodiment, the positive and negative value determination unit includes:

[0179] a slope determination unit, configured to determine the slope of the main survey line and the slope of the connecting survey line respectively;

[0180] A first positive and negative value determination unit is used to determine the positive and negative value of the inclination of the main survey line according to the slope of the main survey line;

[0181] The second positive and negative value determination unit is used to determine the positive and negative values ​​of the inclination angle of the tie line according to the slope of the tie line.

[0182] As can be seen from the above description, the device for determining the azimuth of a geological structure provided in an embodiment of the present invention first obtains seismic imaging data of the target work area where the target geological structure is located; then, based on the seismic imaging data, characterization parameters of the survey line corresponding to the target geological structure are determined; and finally, the azimuth of the target geological structure is determined based on the characterization parameters.

[0183] This method calculates the azimuth of underground structures based on relatively simple underground structure slope information, making it highly applicable. First, three-dimensional slope information of the underground structure is calculated based on the seismic imaging data volume, including the slope of the main survey line and the slope of the tie line. This information is then used to determine the azimuth information corresponding to all sampling points in the underground space.

[0184] Example 5

[0185] The embodiment of the present application also provides a specific implementation of an electronic device that can implement all steps in the method for determining the azimuth of the geological structure in the above embodiment, see Figure 16 , electronic equipment specifically includes the following:

[0186] Processor 1201, memory 1202, communications interface 1203, and bus 1204;

[0187] The processor 1201 , the memory 1202 , and the communication interface 1203 communicate with each other via the bus 1204 ; the communication interface 1203 is used to implement data transmission between server-side devices, computing units, client devices, and other related devices.

[0188] The processor 1201 is used to call the computer program in the memory 1202. When the processor executes the computer program, all steps of the method for determining the azimuth of the geological structure in the above embodiment are implemented. For example, when the processor executes the computer program, the following steps are implemented:

[0189] Step 100: Acquire seismic imaging data of a target work area where a target geological structure is located;

[0190] Step 200: Determine the characterization parameters of the survey line corresponding to the target geological structure based on the seismic imaging data;

[0191] Step 300: Determine the azimuth of the target geological structure according to the characterization parameters.

[0192] The embodiments of the present application also provide a computer-readable storage medium capable of implementing all steps of the method for determining the azimuth of a geological structure in the above embodiment. The computer-readable storage medium stores a computer program. When the computer program is executed by a processor, the computer program implements all steps of the method for determining the azimuth of a geological structure in the above embodiment. For example, when the processor executes the computer program, the following steps are implemented:

[0193] Step 100: Acquire seismic imaging data of a target work area where a target geological structure is located;

[0194] Step 200: Determine the characterization parameters of the survey line corresponding to the target geological structure based on the seismic imaging data;

[0195] Step 300: Determine the azimuth of the target geological structure according to the characterization parameters.

[0196] The various embodiments in this specification are described in a progressive manner. Similar portions between the various embodiments can be referenced to each other. Each embodiment focuses on the differences between the other embodiments. In particular, the hardware + program embodiments are generally similar to the method embodiments, so their description is relatively simple. For relevant portions, refer to the description of the method embodiments.

[0197] The foregoing description of this specification describes specific embodiments. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in an order different from that described in the embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order shown or the sequential order to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0198] It will be understood by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0199] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0200] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0201] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 The steps for the function specified in one or more boxes.

[0202] Specific embodiments are used in the present invention to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core ideas. At the same time, for those skilled in the art, according to the ideas of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A method for determining the azimuth of a geological structure, characterized in that: include: Acquire seismic imaging data of the target work area where the target geological structure is located; Determining, based on the seismic imaging data, a characterization parameter of a survey line corresponding to the target geological structure, wherein the characterization parameter is an inclination angle, and the survey line direction includes: a main survey line and a tie line; Determining the azimuth of the target geological structure according to the characterization parameter includes: determining the azimuth of a current underground point, the current underground point being located in the target geological structure; determining the azimuth of the target geological structure according to the azimuths of multiple current underground points; Wherein, determining the azimuth of the current underground point position includes: respectively determining the positive and negative values ​​of the inclination angle of the main survey line and the positive and negative values ​​of the inclination angle of the connecting survey line; Determining the quadrant to which the current underground point belongs based on the positive and negative values ​​of the inclination angle of the main survey line and the positive and negative values ​​of the inclination angle of the connecting survey line; Determine and calculate the azimuth model corresponding to the azimuth according to the quadrant; The azimuth of the current underground point is determined according to the inclination of the main survey line, the inclination of the tie line, and the azimuth model.

2. The determination method according to claim 1, characterized in that Acquiring seismic imaging data of a target work area where a target geological structure is located includes: Obtain terrain data of the target work area; Determining grid data according to the terrain data of the target work area; determining acquisition data of the seismic imaging data according to the grid data and the terrain data; The seismic imaging data is acquired according to the acquired data.

3. The determination method according to claim 1, characterized in that Determining respectively the positive and negative values ​​of the inclination angle of the main survey line and the positive and negative values ​​of the inclination angle of the connecting survey line includes: respectively determining the slope of the main survey line and the slope of the connecting survey line; Determining a positive or negative value of the inclination angle of the main survey line according to the slope of the main survey line; The positive or negative value of the inclination angle of the tie line is determined according to the slope of the tie line.

4. A device for determining the azimuth of a geological structure based on the method for determining the azimuth of a geological structure according to any one of claims 1 to 3, characterized in that: include: A seismic imaging data acquisition module is used to acquire seismic imaging data of a target work area where a target geological structure is located; a characterization parameter determination module, configured to determine the characterization parameters of the survey line corresponding to the target geological structure based on the seismic imaging data; An azimuth determination module is used to determine the azimuth of the target geological structure according to the characterization parameters.

5. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method for determining the azimuth of a geological structure according to any one of claims 1 to 3 are implemented.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method for determining the azimuth of a geological structure according to any one of claims 1 to 3 are implemented.

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