Method and device for determining structure interpretation style

By dividing the seismic profile into structural parts and calculating the elevation change, combined with the structural interpretation style plate, the problem of inaccurate structural interpretation style in traditional methods is solved, and a simple and efficient structural interpretation is achieved, which is suitable for complex structural areas.

CN120686325APending Publication Date: 2025-09-23PETROCHINA CO LTD
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Patent Information

Application Number
CN202410322321.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-03-20
Publication Date
2025-09-23

AI Technical Summary

Technical Problem

Traditional structural interpretation methods have multiple solutions in areas with unclear seismic profile data or complex structures, making it difficult to accurately determine the structural interpretation style. They are also time-consuming, complex and difficult to repeat.

Method used

By dividing the seismic profile of the target area into structural parts, calculating the elevation changes of the front wing, core and rear wing, and combining the pre-established structural interpretation style plate to determine the structural interpretation style, human interference is eliminated and the operation process is simplified.

Benefits of technology

It achieves accurate structural interpretation in complex structural areas, simplifies the operation process, improves the accuracy of identification, has good practicality and objectivity, and is suitable for foreland basins or complex compressional structural areas.

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Abstract

The invention discloses a method and device for determining a structure interpretation pattern, and the method comprises the steps: carrying out the structural part subdivision of a seismic section of a target region, and obtaining a plurality of traps; dividing each trap into a front wing, a core part and a rear wing of the structure; respectively calculating elevation values of each stratigraphic position line in a front wing, a core part and a rear wing in the seismic section; respectively calculating the elevation variation of the front wing and the core part and the elevation variation of the front wing and the rear wing according to the elevation values; and determining the structural interpretation style of the seismic section according to the elevation variation in combination with a pre-established structural interpretation style chart.
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Description

Technical Field

[0001] This article relates to the field of geological exploration technology, and in particular to a method and device for determining structural interpretation style. Background Art

[0002] Tectonic movement causes deformation in the strata, creating faults and folds. Fault-related folds are an important research topic in the field of tectonics. Fault-related folds include fault-bend folds, fault-propagation folds, slip folds, and wedge-shaped structures. Different structural styles lead to different results in the interpretation of seismic profiles, determining the interpreted shape of the trap, the extension of the fault, and the interpretation scheme for stratigraphic horizons near the fault. The implementation of trap morphology and fault interpretation schemes is crucial to the exploration of underground mineral resources such as oil and natural gas, and has important application value in the depth and location of exploration wells, as well as the evaluation of trap integrity. Traditional structural interpretation is mostly forward modeling, which has disadvantages such as multiple solutions in areas with unclear seismic profile data or complex structures.

[0003] Therefore, realizing a method to determine the structural interpretation style and determining the structural interpretation style more accurately is an urgent problem to be solved. Summary of the Invention

[0004] The present application provides a method and device for determining a structural interpretation style. The method determines the structural interpretation style based on the elevation change combined with a pre-established structural interpretation style plate. The method eliminates the interference of human factors, is simple to operate, has high judgment accuracy, and has good practicality, objectivity and operability.

[0005] In a first aspect, the present application provides a method for determining a structural interpretation style, the method comprising:

[0006] The seismic section of the target area is divided into structural parts to obtain multiple traps;

[0007] Each trap is further divided into the front wing, core and back wing of the structure;

[0008] Calculate the elevation of each stratigraphic line in the front wing, core and back wing of the seismic section respectively;

[0009] Calculating the elevation changes of the front wing and the core, and the elevation changes of the front wing and the rear wing respectively according to the elevation values;

[0010] The structural interpretation style of the seismic section is determined according to the elevation change amount in combination with a pre-established structural interpretation style plate.

[0011] In the second aspect, an embodiment of the present invention also provides a device for determining a construction interpretation style, the device comprising: a memory and a processor; the memory is used to store a program for determining a construction interpretation style, and the processor is used to read and execute the program for determining a construction interpretation style, and execute any one of the methods described in the above embodiments.

[0012] In a third aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a data processing program is stored, and the data processing program is used by a processor to execute the method described in any one of the above embodiments.

[0013] Compared with related technologies, the present application provides a method and device for determining a structural interpretation style, the method comprising: performing structural segmentation on a seismic profile in a target area to obtain multiple closures; further segmenting each closure into the front wing, core, and back wing of the structure; respectively calculating the elevation values ​​of each stratigraphic line in the front wing, core, and back wing of the seismic profile; respectively calculating the elevation changes of the front wing and core, and the elevation changes of the front wing and back wing based on the elevation values; and determining the structural interpretation style of the seismic profile based on the elevation changes in combination with a pre-established structural interpretation style plate. The present application determines the structural interpretation style based on the elevation changes in combination with a pre-established structural interpretation style plate. This method eliminates interference from human factors, is simple to operate, has high identification accuracy, and has good practicality, objectivity, and operability.

[0014] Other features and advantages of the present application will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present application. Other advantages of the present application can be realized and obtained by the solutions described in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide an understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0016] Figure 1 A flow chart of a method for determining a construction interpretation style according to an embodiment of the present application;

[0017] Figure 2 A schematic diagram of a device for determining a structural interpretation style according to an embodiment of the present application;

[0018] Figure 3 Schematic diagram of seismic cross section of the study area in some exemplary embodiments;

[0019] Figure 4 A schematic diagram of the seismic section structure division in some exemplary embodiments;

[0020] Figure 5 Schematic diagram of the variation pattern of the height difference of each stratigraphic line at different structural parts of the research work area in some exemplary embodiments;

[0021] Figure 6 Explain the style determination diagram for the construction of some exemplary embodiments;

[0022] Figure 7 It is a schematic diagram of the final interpretation result determined according to the judgment template in some exemplary embodiments. DETAILED DESCRIPTION

[0023] This application describes multiple embodiments, but this description is exemplary rather than restrictive, and it will be apparent to those skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described herein. Although many possible feature combinations are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with any other feature or element in any other embodiment, or may replace any other feature or element in any other embodiment.

[0024] This application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features, and elements disclosed in this application may also be combined with any conventional features or elements to form a unique inventive solution defined by the claims. Any features or elements of any embodiment may also be combined with features or elements from other inventive solutions to form another unique inventive solution defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in this application may be implemented individually or in any appropriate combination. Therefore, except for the limitations made according to the appended claims and their equivalents, the embodiments are not subject to other limitations. In addition, various modifications and changes may be made within the scope of protection of the appended claims.

[0025] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not rely on the specific order of the steps described herein, the method or process should not be limited to the steps in the specific order described. As will be understood by those skilled in the art, other orders of steps are also possible. Therefore, the specific order of the steps set forth in the specification should not be interpreted as a limitation to the claims. In addition, the claims for the method and / or process should not be limited to performing their steps in the order written, and those skilled in the art can readily understand that these orders can be changed and still remain within the spirit and scope of the embodiments of the present application.

[0026] Some methods for determining structural style interpretation schemes are mainly based on the results of structural physical simulation and structural numerical simulation.

[0027] The physical simulation method primarily uses materials such as clay, quartz sand, and silica gel to simulate subsurface strata. Continuous stress is then applied under specific conditions, causing the strata to deform, forming structural patterns similar to those observed in seismic profiles. The results of the physical simulation are then used to interpret the structural patterns and infer fault development patterns within the seismic profiles. First, this method often assumes that stress application begins after all strata have been deposited. Actual geological conditions may be a contemporaneous sedimentary process, resulting in discrepancies between the physical simulation and the actual geological deformation process. Second, the materials used in this method's stratum simulation differ significantly from the actual strata, leading to significant variations in deformation patterns caused by different material combinations. Physical simulations often rely on simple material combinations, resulting in discrepancies between the results and actual geological conditions. Overall, this method provides some guidance for determining structural patterns, but is not accurate and is time-consuming and labor-intensive.

[0028] The structural numerical simulation method mostly uses structural simulation software to simulate structural deformation under different geological conditions. This method has a certain reference value for geological deformation in complex compression structural areas, but it still has some defects. First, this method requires a high background of technical personnel, and the software operation is relatively complex. There are many parameters that can be set, and structural simulation personnel are relatively arbitrary when setting parameters. Second, most of these parameters lack the support of actual experimental data, so the simulation results are also multi-solution and have certain differences from the actual geological conditions. Third, this method has a preconceived characteristic for the simulation results. Researchers often set the corresponding simulation conditions according to the results and phenomena they hope to see, which lacks objectivity.

[0029] In summary, these two methods are usually time-consuming and have a high failure rate for determining structural schemes. They fail to match the actual geological conditions, and different structural styles will appear under different stratigraphic combinations and stress conditions. Therefore, multiple prerequisites need to be met before application and implementation. The implementation process is complex, the cycle is long, and it is difficult to repeat.

[0030] In response to the problems existing in the above-mentioned methods, the inventors have proposed a method for interpretation and analysis based on multiple high-precision seismic profiles. Due to the high resolution of the seismic profiles, the stratigraphic lines and fault lines are clear, and there is no need to use physical simulation and numerical simulation to verify the interpretation scheme. A structural interpretation identification template is established through the stratigraphic line height difference data of multiple high-precision seismic profiles, and the interpretation style of the seismic profile to be interpreted is determined based on the established structural interpretation identification template. This method eliminates the interference of human factors, has a simple operation method, high identification accuracy, and the data has the characteristics of quantitative analysis. Therefore, it has good practicality, objectivity and operability, and has good application prospects in the field of structural style identification formed under compression background conditions such as foreland basins or complex compressional structural areas.

[0031] The embodiment of the present invention provides a method for determining a construction interpretation style, such as Figure 1 As shown, the method includes steps S100-S140:

[0032] S100: Segmenting the target area seismic profile into structural parts to obtain multiple traps;

[0033] S110: Each trap is further divided into the front wing, core and back wing of the structure;

[0034] S120: Calculate the elevation value of each stratigraphic line in the front wing, core, and back wing of the seismic profile respectively;

[0035] S130: Calculating elevation changes of the front wing and the core, and elevation changes of the front wing and the rear wing, respectively, based on the elevation values;

[0036] S140: Determine the structural interpretation style of the seismic profile according to the elevation change and a pre-established structural interpretation style plate.

[0037] In an exemplary embodiment, the seismic profile is a seismic profile in the depth domain.

[0038] In an exemplary embodiment, a target area seismic section is segmented into structural parts to obtain a plurality of traps, including: obtaining two-dimensional depth domain seismic section image data of the target area, and performing horizon interpretation on the two-dimensional seismic section image; obtaining a plurality of traps based on the horizon interpretation results, such as Figure 3 The figure below shows a trap diagram obtained from a 2D seismic profile. Generally, a trap is selected for segmentation and identification within a tectonic belt. Because the stress background within a region is consistent, the deformation patterns of traps within the region are also consistent. Once an interpretation scheme for a trap is determined, the same scheme can be used for structural interpretation of other traps within the tectonic belt.

[0039] In an exemplary embodiment, each trap is further divided into a front wing, a core, and a back wing of the structure, including: determining a deformed part of the formation in each trap; dividing the deformed part with the axial plane as the boundary to obtain the front wing, the core, and the back wing of the trap, such as Figure 4 As shown, the dotted line in the figure is the axial line, that is, the dotted line separating the three parts A, B, and C.

[0040] In an exemplary embodiment, respectively calculating the elevation values ​​of a plurality of stratigraphic lines in the front wing, the core, and the back wing of the seismic profile includes:

[0041] Determine the elevation measurement points of each part of the front wing, core and back wing of the seismic profile respectively;

[0042] The elevation information corresponding to each stratum in the location is obtained based on the X-coordinate of the elevation measurement point.

[0043] In an exemplary embodiment, respectively calculating the elevation changes of the front wing and the core, and the elevation changes of the front wing and the rear wing according to the elevation values ​​includes:

[0044] The first step is to obtain the elevation change between the front wing and the core of each stratum by subtracting the elevation value of the core from the elevation value of the front wing of the stratum;

[0045] In the second step, for each stratum, the elevation value of the front wing is subtracted from the elevation value of the rear wing in the stratum to obtain the elevation change of the front wing and the rear wing of the stratum.

[0046] In an exemplary embodiment, determining the structural interpretation style of the seismic profile based on the elevation change in combination with a pre-established structural interpretation style plate includes:

[0047] Establish a height difference change map of the structural parts according to the elevation change of each stratum;

[0048] The structural interpretation style of the seismic section is determined by comparing the established structural elevation change map with the predetermined structural interpretation style map.

[0049] In an exemplary embodiment, the process of establishing the construction interpretation style plate is as follows:

[0050] The first step is to obtain high-resolution seismic profiles;

[0051] Step 2: Establishing a structural interpretation style based on the high-resolution seismic profile;

[0052] The third step is to count the height difference change maps corresponding to each structural interpretation template;

[0053] The fourth step is to determine the correspondence between the height difference change map and the structural interpretation style, and to establish a structural interpretation style map based on the correspondence. In general, a structural belt selects a trap for segmentation and identification. Because the stress background of a region is consistent, the deformation style of the traps in the region is consistent. Once the interpretation scheme of a trap is determined, the structural interpretation of other traps in the structural belt can refer to the scheme. However, some seismic data are unclear and cannot be well interpreted. The structural interpretation style map can be established through the stratigraphic interpretation results and fault data of multiple clear high-precision seismic sections, such as Figure 6 As shown, the structural interpretation style of the seismic section with low quality can be further identified based on the established structural interpretation style plate.

[0054] In an exemplary embodiment, the structural interpretation styles include thin-skinned detachment structures, thick-skinned basement involution structures, and wedge-shaped structures.

[0055] (1) Thin-skinned detachment structure is a structure in which the elevation change of the front wing and the rear wing is 0;

[0056] (2) Thick-skinned basement involution is a structure in which the elevation change of the front wing and the back wing is less than 0, and the elevation change of the front wing and the back wing of the i-th stratum is greater than the elevation change of the front wing and the back wing of the i-1-th stratum during the growth stage;

[0057] (3) The wedge-shaped structure is that the elevation change of the front wing and the back wing of the i-th stratum is less than the elevation change of the front wing and the back wing of the i-1-th stratum during the growth stage. Figure 6 As shown in the figure, three typical compressional structure interpretation templates were constructed using high-resolution seismic sections: thin-skinned detachment structure, thick-skinned basement involvement structure, and wedge-shaped structure. The identification criteria for the three templates are:

[0058] (1) The height difference between the rear wing A and the front wing C of the thin-skinned slip structure in the pre-growth stratum and growth stratum stages is 0, that is, ΔHaci=ΔHaci-1=0, where i≥1 and i is an integer.

[0059] (2) The height difference between the rear wing A and the front wing C of the thick-skinned basement incursion structure is significantly different between the pre-growth stratum and growth stratum stages. In the pre-growth stratum stage, ΔHaci≈ΔHaci-1>0, where i≥1 and i is an integer; in the growth stratum stage, ΔHaci>ΔHaci-1>0, where i≥1 and i is an integer.

[0060] (3) The height difference between the rear wing A and the front wing C of the wedge-shaped structure in the pre-growth stratum stage and the growth stratum stage is quite different. In the pre-growth stratum stage, ΔHaci≈ΔHaci-1<0, where i≥1 and i is an integer; in the growth stratum stage, ΔHaci<ΔHaci-1<0, where i≥1 and i is an integer.

[0061] The embodiment of the present invention provides a device for determining a construction interpretation style, such as Figure 2 As shown, the device includes: a memory 200 and a processor 210; the memory is used to store a program for determining a structural interpretation style, and the processor is used to read and execute the program for determining a structural interpretation style, and execute any one of the methods in the above embodiments.

[0062] An embodiment of the present invention further provides a computer-readable storage medium, on which a data processing program is stored. The data processing program is used by a processor to execute the method described in any one of the above embodiments.

[0063] The present invention provides a method and apparatus for determining a structural interpretation style, comprising: performing structural segmentation on a seismic profile in a target area to obtain multiple traps; further segmenting each trap into a front wing, a core, and a back wing of the structure; calculating the elevation values ​​of each stratigraphic line in the front wing, the core, and the back wing of the seismic profile; calculating the elevation changes of the front wing and the core, and the elevation changes of the front wing and the back wing based on the elevation values; and determining the structural interpretation style of the seismic profile based on the elevation changes and a pre-established structural interpretation style chart. The present invention establishes a structural interpretation identification template using stratigraphic line elevation difference data from multiple high-precision seismic profiles, and determines the interpretation style of the seismic profile to be interpreted based on the established structural interpretation identification template. The method eliminates interference from human factors, is simple to operate, has high identification accuracy, and has the characteristics of quantitative data analysis. Therefore, the method has good practicality, objectivity, and operability, and has good application prospects in the field of structural style identification formed under compression background conditions such as foreland basins or complex compressional structural areas.

[0064] Example 1

[0065] This example uses a 2D seismic profile in a study area as an example. The above method for determining the structural interpretation scheme is used to determine the structural interpretation style for the seismic profile. The specific process is as follows:

[0066] Step 1. Seismic section structural division

[0067] In this step, the seismic profile with depth data in the target area is selected, such as Figure 3 As shown;

[0068] The first step is to name the stratigraphic lines from top to bottom as Hi (i=1, 2, 3, 4...n), where n is the number of stratigraphic lines excluding the surface, which is a positive integer.

[0069] The second step is to divide the deformation zone of a single structural part into the rear wing A, the deformation core B, and the front wing C according to the stratum undulation deformation. Figure 4 As shown, the strata on the front and back wings of the fold have undergone little significant deformation, while the strata in the fold core have undergone significant bending, uplift, and deformation. When a single section contains multiple structures, these structures are analyzed separately, with individual structures dissected one by one.

[0070] Step 2. Elevation measurement of structural parts

[0071] Step 1: Determine the elevation measurement baseline

[0072] The lowest stratigraphic line is used as the elevation measurement baseline. In this example, the baseline is the horizontal plane where H7 is located. The elevation data of each stratigraphic line of the fold rear wing A, deformation core B, and front wing C are measured respectively.

[0073] Step 2: Determine the elevation measurement point

[0074] The height measurement points need to be on the same vertical line, that is, points with the same X coordinates, such as Figure 4 The vertical dashed lines shown in the figure are named Hai (i=1, 2, 3, 4, ... n), where n is the number of the stratigraphic line excluding the surface, a positive integer. The stratigraphic lines in the deformation core B are named Hbi (i=1, 2, 3, 4, ... n), where n is the number of the stratigraphic line excluding the surface, a positive integer. The stratigraphic lines in the front wing C are named Hci (i=1, 2, 3, 4, ... n), where n is the number of the stratigraphic line excluding the surface, a positive integer. The strata on the baseline, as they lie at the boundary of a major tectonic geological period, typically experience significant uplift and erosion, and this uplift and erosion are not uniform. Therefore, their elevations are generally not measured, as in this case, for example, Hb7 and Hc7. The results are shown in Table 1.

[0075] Table 1 Elevation information of different stratigraphic lines at different structural locations

[0076]

[0077] Step 3. Calculation of elevation differences at different structural locations

[0078] Step 1: Calculate the elevation change of the front wing and core of the structure

[0079] The elevation difference between the structural core B and the front wing C is ΔHbci=Hbi-Hci (i=1, 2, 3, 4...n), where n is the number of stratigraphic lines excluding the surface, which is a positive integer.

[0080] Step 2: Construct the elevation change of the front wing and the rear wing

[0081] The elevation difference between the rear wing A and the front wing C is ΔHaci=Hai-Hci (i=1, 2, 3, 4...n), where n is the number of stratigraphic lines excluding the ground surface, and is a positive integer.

[0082] The formation line height difference calculated in this example is shown in Table 2.

[0083] Table 2 Differences in stratigraphic elevations at different locations of the structure

[0084]

[0085]

[0086] Step 4. Create a structural elevation map based on the elevation changes of each stratum

[0087] The data in Table 2 are used to draw the hind wing A and the front wing C, and the height difference map of the core B and the front wing C is constructed. The results are shown in the figure. Figure 5 As shown. Figure 5 The following conclusions were drawn: During the growth phase, tectonic sedimentation occurred simultaneously, and the elevation difference between the rear wing A and the front wing C of the structure varied significantly, with ΔHac<ΔHac-1<0, where i ≥ 1 and i is an integer. In this example, the growth phase occurred after layer H4, with ΔHac4<ΔHac3<ΔHac2<ΔHac1<0.

[0088] Step 5. Create a structural interpretation style determination chart

[0089] A standard interpretation template is established by using multiple clear high-precision seismic section stratigraphic lines and fault data. Figure 6 As shown in the figure, this template data is used to further identify structural interpretations of low-quality seismic sections. Three typical compressional structural interpretation templates, thin-skinned slip structures, thick-skinned basement entanglement structures, and wedge-shaped structures, are constructed using high-resolution seismic sections. The identification criteria for the three templates are as follows:

[0090] (1) The height difference between the rear wing A and the front wing C of the thin-skinned slip structure in the pre-growth stratum and growth stratum stages is 0, that is, ΔHaci=ΔHaci-1=0, where i≥1 and i is an integer.

[0091] (2) The height difference between the rear wing A and the front wing C of the thick-skinned basement incursion structure is significantly different between the pre-growth stratum and growth stratum stages. In the pre-growth stratum stage, ΔHaci≈ΔHaci-1>0, where i≥1 and i is an integer; in the growth stratum stage, ΔHaci>ΔHaci-1>0, where i≥1 and i is an integer.

[0092] (3) The height difference between the rear wing A and the front wing C of the wedge-shaped structure in the pre-growth stratum stage and the growth stratum stage is quite different. In the pre-growth stratum stage, ΔHaci≈ΔHaci-1<0, where i≥1 and i is an integer; in the growth stratum stage, ΔHaci<ΔHaci-1<0, where i≥1 and i is an integer.

[0093] Step 6. Determine the construction style

[0094] The structural height difference characteristics of this example are as follows: Figure 5 As shown, it conforms to the third interpretation model, so it is judged to be a wedge-shaped structure. The elevation difference data of each stratigraphic line of the rear wing A, core B and front wing C of the structure in this example are shown in Table 2. ΔHac6≈ΔHac5<0, so the strata represented by H5 and H6 are in the pre-growth stratum stage. ΔHac4<ΔHac3<ΔHac2<ΔHac1<0, and the strata represented by H4, H3, H2, and H1 are in the growth stratum stage. Figure 5 As shown in Figure 2, the change in height difference is consistent with the height difference between the rear wing A and the front wing C of the wedge-shaped structure in the pre-growth stratum and growth stratum stages. Therefore, the final identification result of this example is that this deformation is a wedge-shaped structure. Figure 6 The execution of pattern 3 in the template yields the following result: Figure 7 The final structural interpretation results are shown.

[0095] The method used in this example to determine the structural interpretation style has the following technical effects:

[0096] 1. It is used in seismic sections of complex structures where the boundary between the core and the wing is unclear and the seismic data quality is not high. By inferring the low-quality sections from the sections formed in the similar structural background with clear geological quality, the low-quality seismic sections with low signal-to-noise ratio can be interpreted.

[0097] 2. This method eliminates the interference of human factors, has simple operation, high judgment accuracy, and the data has the characteristics of quantitative analysis. Therefore, it has good practicality, objectivity and operability.

[0098] 3. It has good application prospects in the field of structural style identification formed under compression background conditions such as foreland basins or complex compressional structural areas.

[0099] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all components may be implemented as software executed by a processor, such as a digital signal processor or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As is well known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable, and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those skilled in the art that communication media generally embodies computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

Claims

1. A method for determining a structural interpretation style, characterized in that: The method comprises: The seismic section of the target area is divided into structural parts to obtain multiple traps; Each trap is further divided into the front wing, core and back wing of the structure; Calculate the elevation of each stratigraphic line in the front wing, core and back wing of the seismic section respectively; Calculating the elevation changes of the front wing and the core, and the elevation changes of the front wing and the rear wing respectively according to the elevation values; The structural interpretation style of the seismic section is determined according to the elevation change amount in combination with a pre-established structural interpretation style plate.

2. The method for determining a structural interpretation style according to claim 1, wherein: The seismic profile is a seismic profile in the depth domain.

3. The method for determining a structural interpretation style according to claim 2, wherein: The structural segmentation of the seismic section of the target area is performed to obtain multiple traps, including: Acquiring two-dimensional depth-domain seismic profile image data of the target area, and performing horizon interpretation on the two-dimensional seismic profile image; Multiple traps were identified based on the horizon interpretation results.

4. The method for determining a structural interpretation style according to claim 1, wherein: Each trap is further divided into the front wing, core and back wing of the structure, including: Determine the deformation location of the formation in each trap; The deformed portion is divided along the axial line to obtain a closed front wing, a core and a rear wing.

5. The method for determining a structural interpretation style according to claim 1, wherein: The step of respectively calculating the elevation value of each stratigraphic line in the front wing, the core, and the back wing of the seismic profile includes: Determine the elevation measurement points of each part of the front wing, core and back wing of the seismic profile respectively; The elevation information corresponding to each stratum in the area is obtained according to the X-coordinate measurement of the elevation measurement point.

6. The method for determining a structural interpretation style according to claim 5, characterized in that: The step of calculating the elevation changes of the front wing and the core, and the elevation changes of the front wing and the rear wing respectively according to the elevation values ​​includes: For each stratum, the elevation value of the core is subtracted from the elevation value of the front wing of the stratum to obtain the elevation change of the front wing and the core of the stratum; For each stratum, the elevation value of the front wing is subtracted from the elevation value of the rear wing in the stratum to obtain the elevation change of the front wing and the rear wing of the stratum.

7. The method for determining a structural interpretation style according to claim 6, wherein: The determining of the structural interpretation style of the seismic section based on the elevation change in combination with a pre-established structural interpretation style plate includes: Establish a height difference change map of the structural parts according to the elevation change of each stratum; The structural interpretation style of the seismic section is determined by comparing the established structural elevation change map with the predetermined structural interpretation style map.

8. The method for determining a structural interpretation style according to claim 1, wherein: The process of establishing the structural interpretation style plate is as follows: Acquire high-resolution seismic profiles; establishing a structural interpretation style based on the high-resolution seismic profile; Count the height difference change maps corresponding to each structural interpretation template respectively; The correspondence between the elevation change map and the structural interpretation style is determined, and a structural interpretation style map is established based on the correspondence.

9. The method for determining a structural interpretation style according to claim 8, wherein: The structural interpretation styles include thin-skinned detachment structure, thick-skinned basement involution structure and wedge-shaped structure.

10. The method for determining a structural interpretation style according to claim 9, wherein: The thin-skinned slip structure is a structure in which the elevation change of the front wing and the rear wing is 0; The thick-skinned basement intrusion structure is a structure in which the elevation change of the front wing and the back wing is less than 0, and the elevation change of the front wing and the back wing of the i-th stratum is greater than the elevation change of the front wing and the back wing of the i-1-th stratum during the growth stratum stage; The wedge-shaped structure is that in the growth stratum stage, the elevation change of the front wing and the rear wing of the i-th stratum is smaller than the elevation change of the front wing and the rear wing of the i-1-th stratum.

11. A device for determining a structural interpretation style, characterized in that: The device includes: a memory and a processor; the memory is used to store a program for determining a structural interpretation style, and the processor is used to read and execute the program for determining a structural interpretation style, and execute the method according to any one of claims 1 to 10.

12. A computer-readable storage medium having a data processing program stored thereon, wherein a processor executes the method for determining a construction interpretation style according to any one of claims 1 to 10.