Method and device for determining azimuth angle of geological structure

Abstract

The invention provides a geological structure azimuth angle determination method and apparatus. The method comprises the steps of obtaining seismic imaging data of a target work area where a target geological structure is located; determining characterization parameters of a measuring line corresponding to the target geological structure according to the seismic imaging data; and determining the azimuth angle of the target geological structure according to the characterization parameters. According to the method, the azimuth angle information of the underground structure is calculated based on the slope information of the underground structure which is relatively simple in acquisition mode, so that the method for determining the azimuth angle of the geological structure provided by the invention is relatively high in 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 information of underground structures and obtaining relatively accurate azimuth data are of great significance for seismic data processing or interpretation. For example, in the field of seismic data processing, azimuth information can be used to constrain structures or smooth structures in a way of prior information constraints, and can also be used to provide azimuth information for anisotropic modeling and imaging. In the field of seismic data interpretation, azimuth data can be used to guide the prediction of fracture directions and locate underground oil and gas reservoirs. It is an indispensable basic data for reservoir description and reservoir prediction.

[0003] In the prior art, a compass 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 with the increase of exploration depth, the prediction accuracy decreases; 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 that the wellhead position measurement is relatively accurate, and with the increase of the extrapolation distance, the accuracy of the determined azimuth gradually decreases, and in the early stage 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, which method first obtains seismic imaging data of a target work area where a target geological structure is located; then, characterization parameters of a survey line corresponding to the target geological structure are determined based on the seismic imaging data; and finally, the azimuth of the target geological structure is determined based on the characterization parameters. This method calculates the azimuth information of underground structures based on information such as the slope of underground structures that is relatively simple to obtain, and has strong applicability. Another object of the present invention is to provide a device for determining the azimuth of a geological structure. Another object of the present invention is to provide a computer device, which includes a memory and a processor, the memory stores a computer program, and the processor implements the steps of the method for determining the azimuth of the geological structure when executing the computer program. Another object of the present invention is to provide a readable medium, on which a computer program is stored, and when the computer program is executed by the processor, the steps of the method for determining the azimuth of the geological structure are implemented.

[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, a characterization parameter of a 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 according to the azimuths of a plurality of current underground points.

[0019] In one embodiment, determining the azimuth of the current underground point position 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 contact survey line;

[0021] Determine the quadrant to which the current underground point belongs according to 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 contact 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 contact survey line includes:

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

[0026] Determine the positive and negative values ​​of the inclination of the main survey line according to the slope of the main survey line;

[0027] The positive and negative values ​​of the inclination angle of the tie line are 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, used to determine the characterization parameters of the survey line corresponding to the target geological structure according to 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, used to determine grid data according to the terrain data of the target work area;

[0035] An acquisition data determination unit, configured to determine acquisition data of the seismic imaging data according to 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 determination unit, used 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 determination unit, used to respectively determine the positive and negative values ​​of the inclination of the main survey line and the positive and negative values ​​of the inclination of the contact survey line;

[0044] A quadrant determination unit, used to determine the quadrant to which the current underground point belongs according to 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 contact survey line;

[0045] A model determination unit, used for determining and calculating 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, used 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 values ​​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 method described above is implemented.

[0055] From the above description, it can be seen that the method and device for determining the azimuth of a geological structure provided in an embodiment of the present invention first obtain the seismic imaging data of the target work area where the target geological structure is located; then, the 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] The present invention calculates the azimuth information of the underground structure based on the underground structure slope information which is relatively simple to obtain, so the method has strong applicability. Firstly, the three-dimensional slope information of the underground structure is calculated based on the seismic imaging data body, 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 azimuth information corresponding to all sampling points in the underground space is obtained. 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0058] Figure 1 It is a flow chart of a method for determining the azimuth of a geological structure in Embodiment 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 Embodiment 1 of the present invention;

[0060] Figure 3 Schematic diagram of the flow 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 Schematic diagram of the flow of step 301 of the method for determining the azimuth of a geological structure in the first embodiment of the present invention;

[0062] Figure 5 This 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 It is a flow chart 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 seismic data volume cross section 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] Fig. 9 A schematic diagram of a slope profile corresponding to a main survey line direction input in the third embodiment of the present invention;

[0067] Fig.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] Fig.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] Fig.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] Fig.13 is a schematic diagram of an azimuth profile calculated in Example 3 of the present invention;

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

[0072] Fig.15 It is a structural block diagram of a method and device for determining the azimuth of a geological structure in Embodiment 4 of the present invention;

[0073] Fig.16 It is a schematic diagram of the structure of an electronic device in an embodiment of the present invention. DETAILED DESCRIPTION

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

[0075] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0076] Embodiment 1

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

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

[0079] According to the time domain seismic post-stack data of the target work area and the depth domain well data of the test well, a structural framework model is established. Then, the depth domain well data is converted into a time-depth relationship, so that the time domain well data can be obtained to prepare for the subsequent correction of the structural framework model. Then, the structural framework model is established through the time domain seismic post-stack data to obtain the 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 imaging images.

[0080] Step 200: determining the characterization parameters of the survey line corresponding to the target geological structure according to 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, fold, etc.) on the earth's surface and a reference direction. Usually, the azimuth is measured relative to the geographic north direction and is expressed in a 360-degree circle.

[0084] In this embodiment, the measurement of azimuth follows the following convention: the angle is measured clockwise from the north direction, with the north direction being 0 degrees, the east direction being 90 degrees, the south direction being 180 degrees, and the west direction being 270 degrees. Therefore, if the angle between a geological structure line and the north direction is 30 degrees, then its azimuth is 30 degrees. If the angle between it and the east direction is 120 degrees, then 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 a target work area where a target geological structure is located; then, characterization parameters of a survey line corresponding to the target geological structure are determined based on the seismic imaging data; and finally, the azimuth of the target geological structure is determined based on the characterization parameters.

[0086] The present invention calculates the azimuth information of the underground structure based on the underground structure slope information which is relatively simple to obtain, so the method has strong applicability. Firstly, the three-dimensional slope information of the underground structure is calculated based on the seismic imaging data body, 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 azimuth information corresponding to all sampling points in the underground space is obtained.

[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 selected in a direction perpendicular to the topographic undulation line, so as to cover different geological structures to the greatest extent.

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

[0091] When planning the main survey lines, the data density of data collection must also be considered. More dense main survey lines can provide higher-resolution underground information, but they will also increase exploration costs.

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

[0093] According to the purpose of 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, you can choose the main survey line direction corresponding to the trend of the structure.

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

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

[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 of data collection along the seismic profile (survey line). Usually, the main survey line direction is selected to be perpendicular to the terrain and other conditions to obtain more comprehensive underground information as much as possible.

[0098] The tie line refers to a secondary survey line perpendicular to the main survey line, which is used to supplement the main survey line data and improve the reliability and accuracy of the exploration results. In this embodiment, the tie line has the following requirements:

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

[0100] b. Uniform spacing: The contact lines are usually arranged at uniform spacing on the main survey line, which 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, if Figure 3 As shown, step 300 includes:

[0104] Step 301: determining 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 step 301 and step 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 pointed out 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, if 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 contact survey line;

[0109] Step 3012: determining the quadrant to which the current underground point belongs according to 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 contact 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: Determine and calculate the azimuth model corresponding to the azimuth according to the quadrant;

[0112] On the basis of step 3012, 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 the azimuth model corresponding to the current point position, 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 position.

[0115] In one embodiment, if 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 and negative values ​​of the inclination of the main survey line according to the slope of the main survey line;

[0118] Step 30113: Determine the positive and negative values ​​of the inclination angle of the tie line according to the slope of the tie line.

[0119] In step 30112 and step 30113, an inverse tangent 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 of the main survey line and the positive and negative values ​​of the inclination of the tie line.

[0120] From the above description, it can be seen that the method for determining the azimuth of the geological structure provided by the embodiment of the present invention calculates the azimuth information of the underground structure based on the underground structure slope information which is relatively simple to obtain, and the method has strong applicability. First, the three-dimensional slope information of the underground structure is calculated based on the seismic imaging data body, 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] Embodiment 2

[0122] The present invention provides a method for determining the azimuth of a geological structure. Compared with the prior art, 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 of the main survey line direction and the slope of the tie line direction. Specifically, Figure 6 As shown, the present invention comprises 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 three-dimensional 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 obtaining seismic imaging data, 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 contact side line 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 according to 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] Get the main line inclination θ x (i,j,k) and tie line inclination angle 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] From the above description, it can be seen that the method for determining the azimuth of the geological structure provided by the embodiment of the present invention calculates the azimuth information of the underground structure based on the underground structure slope information which is relatively simple to obtain, so the applicability of this method is relatively strong. First, the three-dimensional slope information of the underground structure is calculated based on the seismic imaging data body, 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] Embodiment 3

[0146] In order to further illustrate the technical solution of the present application and prove the accuracy and effectiveness of the method for determining the azimuth of the geological structure provided by the present application, the present invention is further described by taking a specific block as an example (i.e., by describing it through actual seismic data). In this specific application example, the process of determining the azimuth of the geological structure 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 three-dimensional data volume;

[0150] like Fig. 9 As shown in Figure 10, the slope profile of the main survey line direction is calculated using the three-dimensional 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 Fig.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 contact line, and obtain the azimuth arc value of each point based on the calculation formula of 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: Fig.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 a target work area where a target geological structure is located; then, characterization parameters of a survey line corresponding to the target geological structure are determined based on the seismic imaging data; and finally, the azimuth of the target geological structure is determined based on the characterization parameters.

[0157] The present invention calculates the azimuth information of the underground structure based on the underground structure slope information which is relatively simple to obtain, so the method has strong applicability. Firstly, the three-dimensional slope information of the underground structure is calculated based on the seismic imaging data body, 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 azimuth information corresponding to all sampling points in the underground space is obtained.

[0158] Embodiment 4

[0159] Based on the same principle, this embodiment also discloses a device for determining the azimuth of a geological structure. Fig.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 a characterization parameter of a survey line corresponding to the target geological structure according to the seismic imaging data;

[0162] The azimuth angle determination module 30 is used 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, used to determine grid data according to the terrain data of the target work area;

[0166] An acquisition data determination unit, configured to determine acquisition data of the seismic imaging data according to 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, used 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 determination unit, used to respectively determine the positive and negative values ​​of the inclination of the main survey line and the positive and negative values ​​of the inclination of the contact survey line;

[0175] A quadrant determination unit, used to determine the quadrant to which the current underground point belongs according to 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 contact survey line;

[0176] A model determination unit, used for determining and calculating 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, used 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 values ​​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] From the above description, it can be seen that the device for determining the azimuth of a geological structure provided in an embodiment of the present invention first obtains seismic imaging data of a target work area where a target geological structure is located; then, characterization parameters of a survey line corresponding to the target geological structure are determined based on the seismic imaging data; and finally, the azimuth of the target geological structure is determined based on the characterization parameters.

[0183] The present invention calculates the azimuth information of the underground structure based on the underground structure slope information which is relatively simple to obtain, so the method has strong applicability. Firstly, the three-dimensional slope information of the underground structure is calculated based on the seismic imaging data body, 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 azimuth information corresponding to all sampling points in the underground space is obtained.

[0184] Embodiment 5

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

[0186] Processor (processor) 1201, memory (memory) 1202, communication interface (CommunicationsInterface) 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 realize data transmission between related devices such as server-side devices, computing units, and client devices.

[0188] The processor 1201 is used to call the computer program in the memory 1202. When the processor executes the computer program, all the steps in 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: determining the characterization parameters of the survey line corresponding to the target geological structure according to 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 the steps in 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, all the steps in the method for determining the azimuth of a geological structure in the above embodiment are implemented. 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: determining the characterization parameters of the survey line corresponding to the target geological structure according to the seismic imaging data;

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

[0196] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the hardware + program embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0197] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0198] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, 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 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 flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, 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 flowchart and / or block diagram. 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 capable of directing a computer or other programmable data processing device to operate 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 A 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 operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0202] The present invention uses specific embodiments 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 idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on 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; The azimuth of the target geological structure is determined according to the characterization parameters.

2. The determination method according to claim 1, characterized in that: The obtaining of seismic imaging data of a target work area where a target geological structure is located comprises: 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: The survey line direction includes: a main survey line and a connecting line.

4. The determination method according to claim 3, characterized in that: The characterizing parameter is the inclination angle.

5. The determination method according to claim 4, characterized in that: Determining the azimuth of the target geological structure according to the characterization parameter includes: Determining an azimuth of a current underground point, wherein the current underground point is located in the target geological structure; The azimuth of the target geological structure is determined according to the azimuths of a plurality of current underground points.

6. The determination method according to claim 5, characterized in that: 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 contact survey line; Determine the quadrant to which the current underground point belongs according to 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 contact 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.

7. The determination method according to claim 5, characterized in that: 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 contact survey line, including: respectively determining the slope of the main survey line and the slope of the connecting survey line; Determine the positive and negative values ​​of the inclination of the main survey line according to the slope of the main survey line; The positive and negative values ​​of the inclination angle of the tie line are determined according to the slope of the tie line.

8. A device for determining the azimuth of a geological structure, 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, used to determine the characterization parameters of the survey line corresponding to the target geological structure according to the seismic imaging data; An azimuth determination module is used to determine the azimuth of the target geological structure according to the characterization parameters.

9. 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 according to any one of claims 1 to 7 are implemented.

10. 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 according to any one of claims 1 to 7 are implemented.

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