Geological interpretation method, geological interpretation device, electronic device and storage medium

Abstract

The present application discloses a geological interpretation method, a geological interpretation device, an electronic device and a storage medium. By acquiring target electrical data and seismic data of a work area, a plurality of geoelectric models corresponding to different geological structures are constructed according to the target electrical data and seismic data, the target electrical data are inverted based on each geoelectric model to obtain a first inversion result corresponding to the geoelectric model, a fitting error is obtained according to the geoelectric model and the first inversion result corresponding to the geoelectric model, the first inversion result corresponding to the fitting error with the smallest numerical value is selected as the second inversion result, and a geological interpretation result is obtained according to the second inversion result. When constructing a geoelectric model for a complex area, the accuracy of the geoelectric model is improved compared with the traditional model established with a single seismic data as a constraint, and the geological interpretation result has a small error and a high accuracy.

Description

Technical Field

[0001] The present application relates to the field of geophysical exploration, and in particular to a geological interpretation method, a geological interpretation device, an electronic device, and a storage medium. Background Art

[0002] Wide-field electromagnetic (WFE) is an artificial source frequency-domain electromagnetic method that uses a 2n-sequence pseudo-random signal as the excitation signal. By measuring a component of the electromagnetic field, it can obtain wide-area apparent resistivity, thereby intuitively reflecting the electrical characteristics of the subsurface. To obtain imaging results that closely resemble the true electrical characteristics of the subsurface, researchers often use geophysical inversion as the primary method for WFE analysis and processing. This method can recover the original subsurface physical parameters as closely as possible from limited observational data. However, inversion itself is merely a mathematical method, generally an optimization process. This optimization process is subject to multiple solutions, and direct geological interpretation of the inversion results can result in significant errors.

[0003] To address the multi-solution problem in the inversion process, predecessors proposed model-constrained inversion. By establishing a model to impose a priori constraints on the inversion, the data converges reasonably and the inversion results converge to the optimal solution near the prior model. Model establishment is the most important step in the model-constrained inversion process, so the accuracy of the model is crucial. Currently, model-constrained inversion for electrical methods is often constrained by seismic data. However, seismic data analysis is severely affected by velocity models. Therefore, the interpretation of seismic data in areas with complex structures and stratigraphy is often uncertain, which leads to a certain degree of uncertainty in the electrical inversion results.

[0004] In summary, the inversion of wide-area electromagnetic method is currently in a dilemma, that is, the inversion results are multi-solution, the inversion error is large, the accuracy is not high, and the necessary geological information cannot be obtained. Summary of the Invention

[0005] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a geological interpretation method, geological interpretation device, electronic device, and storage medium that can address the problems of multiple solutions, large inversion errors, and low accuracy in existing wide-area electromagnetic inversion results.

[0006] According to the geological interpretation method of the embodiment of the first aspect of the present application, the method includes: obtaining target electrical data of a work area, the work area including multiple strata, the target electrical data including electric field data of any section of the work area obtained by wide-area electromagnetic method; obtaining seismic data of the work area; constructing multiple geoelectric models corresponding to different geological structures based on the target electrical data and the seismic data; inverting the target electrical data based on each of the geoelectric models to obtain a first inversion result corresponding to the geoelectric model; obtaining a fitting error based on each geoelectric model and the first inversion result corresponding to the geoelectric model, the fitting error being the error of fitting the actual geological structure of the work area based on the geoelectric model; selecting the first inversion result corresponding to the fitting error with the smallest numerical value as the second inversion result; and obtaining a geological interpretation result based on the second inversion result.

[0007] The geological interpretation method according to the first embodiment of the present application has at least the following beneficial effects:

[0008] By acquiring target electrical data and seismic data of the work area, a plurality of geoelectric models corresponding to different geological structures are constructed based on the target electrical data and seismic data, the target electrical data are inverted based on each geoelectric model, and a first inversion result corresponding to the geoelectric model is obtained. A fitting error is obtained based on the geoelectric model and the first inversion result corresponding to the geoelectric model, and the first inversion result corresponding to the smallest fitting error is selected as the second inversion result, and a geological interpretation result is obtained based on the second inversion result. According to the geological interpretation method of the first embodiment of the present application, a plurality of geoelectric models of different geological structures are established based on the target electrical data and seismic data. When constructing a geoelectric model for a complex area, the accuracy of the geoelectric model is improved compared to the traditional model established with a single seismic data as a constraint. The target electrical data are inverted based on each geoelectric model to obtain a plurality of first inversion results, and the first inversion result with the smallest fitting error is selected as the second inversion result. Since the second inversion result has the smallest fitting error, it is closest to the actual situation of the work area. The geological interpretation result obtained by interpreting the second inversion result has a small error and high accuracy.

[0009] According to some embodiments of the present application, obtaining target electrical method data of a work area includes:

[0010] Obtaining original electrical data of the work area;

[0011] The raw electrical method data are preprocessed to obtain target electrical method data.

[0012] According to some embodiments of the present application, preprocessing the raw electrical method data to obtain target electrical method data includes:

[0013] The original electrical method data is subjected to Fourier transformation, flying spot elimination and static correction to obtain the target electrical method data.

[0014] According to some embodiments of the present application, constructing a plurality of geoelectrical models corresponding to different geological structures based on the target electrical data and the seismic data includes:

[0015] Acquiring well logging resistivity data, well logging formation characteristic data, and well logging structural characteristic data of the work area;

[0016] Conducting electrical analysis on each stratum in the work area according to the well logging resistivity data to obtain electrical stratification results;

[0017] Determining seismic interpretation models of multiple different geological structures by combining the well logging formation characteristic data, the well logging structural characteristic data, and the seismic data;

[0018] obtaining a formation structure model according to the target electrical data;

[0019] Establishing a geological structure model corresponding to each of the seismic interpretation models according to the plurality of seismic interpretation models and the stratum structure model;

[0020] The geoelectrical models of multiple different geological structures are obtained by assigning values ​​to the geological structure models according to the electrical stratification results.

[0021] According to some embodiments of the present application, obtaining a geological interpretation result based on the second inversion result includes: interpreting the second inversion result based on the electrical stratification result to obtain the geological interpretation result.

[0022] According to some embodiments of the present application, inverting the target electrical data based on each of the geoelectrical models to obtain a first inversion result corresponding to the geoelectrical model includes: iteratively calculating the target electrical data based on each of the geoelectrical models and the minimum support constraint theory to obtain the first inversion result corresponding to the geoelectrical model.

[0023] According to some embodiments of the present application, obtaining the fitting error based on each geoelectric model and the first inversion result corresponding to the geoelectric model includes: calculating the binary norm between the geoelectric model and the first inversion result corresponding to the geoelectric model, and obtaining the fitting error corresponding to the first inversion result.

[0024] According to the geological interpretation device of the second aspect of the present application, the device includes: a data acquisition module for acquiring target electrical data and seismic data of a work area, wherein the work area includes multiple strata, and the target electrical data includes electric field data of any section of the work area obtained by wide-area electromagnetic method; a model construction module for constructing multiple geoelectric models corresponding to different geological structures based on the target electrical data and the seismic data; an inversion module for inverting the target electrical data based on each of the geoelectric models to obtain a first inversion result corresponding to the geoelectric model, and obtaining a fitting error based on the geoelectric model and the first inversion result corresponding to the geoelectric model, wherein the fitting error is the error of fitting the actual geological structure of the work area based on the geoelectric model, and the first inversion result corresponding to the fitting error with the smallest numerical value is selected as the second inversion result; and a result output module for obtaining a geological interpretation result based on the second inversion result.

[0025] The geological interpretation device according to the second embodiment of the present application has at least the following beneficial effects:

[0026] By acquiring target electrical data and seismic data of a work area, a plurality of geoelectric models corresponding to different geological structures are constructed based on the target electrical data and seismic data, the target electrical data are inverted based on each geoelectric model to obtain a first inversion result corresponding to the geoelectric model, a fitting error is obtained based on the geoelectric model and the first inversion result corresponding to the geoelectric model, the first inversion result corresponding to the smallest fitting error is selected as the second inversion result, and a geological interpretation result is obtained based on the second inversion result. According to the geological interpretation device of the second embodiment of the present application, a plurality of geoelectric models of different geological structures are established based on the target electrical data and seismic data. When constructing a geoelectric model for a complex area, the accuracy of the geoelectric model is improved compared to the traditional model established with a single seismic data as a constraint. The target electrical data are inverted based on each geoelectric model to obtain a plurality of first inversion results, the first inversion result with the smallest fitting error is selected as the second inversion result. The second inversion result is closest to the actual situation of the work area because the fitting error is the smallest. The geological interpretation result obtained by interpreting the second inversion result has a small error and high accuracy.

[0027] According to the electronic device of the third embodiment of the present application, it includes: at least one processor; at least one memory for storing at least one program; when at least one of the programs is executed by at least one of the processors, the geological interpretation method as described above is implemented.

[0028] The electronic device according to the embodiment of the third aspect of the present application has at least the following beneficial effects:

[0029] By acquiring target electrical data and seismic data of a work area, a plurality of geoelectric models corresponding to different geological structures are constructed based on the target electrical data and seismic data, the target electrical data are inverted based on each geoelectric model to obtain a first inversion result corresponding to the geoelectric model, a fitting error is obtained based on the geoelectric model and the first inversion result corresponding to the geoelectric model, the first inversion result corresponding to the smallest fitting error is selected as the second inversion result, and a geological interpretation result is obtained based on the second inversion result. According to the electronic device of the third embodiment of the present application, a plurality of geoelectric models of different geological structures are established based on the target electrical data and seismic data. When constructing a geoelectric model for a complex area, the accuracy of the geoelectric model is improved compared to the traditional model established with a single seismic data as a constraint. The target electrical data are inverted based on each geoelectric model to obtain a plurality of first inversion results, the first inversion result with the smallest fitting error is selected as the second inversion result. The second inversion result is closest to the actual situation of the work area because the fitting error is the smallest. The geological interpretation result obtained by interpreting the second inversion result has a small error and high accuracy.

[0030] According to the computer-readable storage medium of the fourth embodiment of the present application, a program executable by a processor is stored therein, and the program executable by the processor is used to implement the geological interpretation method as described above when executed by the processor.

[0031] A computer-readable storage medium according to an embodiment of the fourth aspect of the present application has at least the following beneficial effects:

[0032] By acquiring target electrical data and seismic data of the work area, multiple geoelectric models corresponding to different geological structures are constructed based on the target electrical data and seismic data, and the target electrical data are inverted based on each geoelectric model to obtain a first inversion result corresponding to the geoelectric model, a fitting error is obtained based on the geoelectric model and the first inversion result corresponding to the geoelectric model, the first inversion result corresponding to the smallest fitting error is selected as the second inversion result, and a geological interpretation result is obtained based on the second inversion result. According to the computer-readable storage medium of the fourth embodiment of the present application, multiple geoelectric models of different geological structures are established based on the target electrical data and seismic data. When constructing a geoelectric model for a complex area, the accuracy of the geoelectric model is improved compared to the traditional model established with a single seismic data as a constraint. The target electrical data are inverted based on each geoelectric model to obtain multiple first inversion results, and the first inversion result with the smallest fitting error is selected as the second inversion result. The second inversion result has the smallest fitting error and is therefore closest to the actual situation of the work area. The geological interpretation result obtained by interpreting the second inversion result has a small error and high accuracy.

[0033] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present application is further described below with reference to the accompanying drawings and embodiments, wherein:

[0035] Figure 1 This is a flow chart of a geological interpretation method in one embodiment of the present application;

[0036] Figure 2 This is a flow chart for obtaining target electrical data in one embodiment of the present application;

[0037] Figure 3 This is a corresponding diagram of the original data curve diagram, the pseudo-seismic curve diagram and the equal frequency curve diagram in one embodiment of the present application;

[0038] Figure 4 A flowchart of constructing a geoelectric model in an embodiment of the present application;

[0039] Figure 5 This is a result diagram of the geological interpretation results in one embodiment of the present application;

[0040] Figure 6 This is a fitting error discrimination diagram of the geoelectric model in one embodiment of the present application;

[0041] Figure 7 This is a schematic diagram of a geological interpretation device in one embodiment of the present application;

[0042] Figure 8 Schematic diagram of an electronic device in one embodiment of the present application.

[0043] Reference numerals:

[0044] Geological interpretation device 100, data acquisition module 110, model building module 120, inversion module 130, result output module 140,

[0045] Electronic device 200 , processor 210 , and memory 220 . DETAILED DESCRIPTION

[0046] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0047] In the description of this application, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0048] In the description of this application, "a plurality" refers to more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0049] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0050] like Figure 1 As shown, Figure 1 This is a flow chart of a geological interpretation method according to an embodiment of the present application. The geological interpretation method according to an embodiment of the present application includes:

[0051] Step S100: Acquire target electrical data of a work area, where the work area includes multiple strata, and the target electrical data includes electric field data of any section of the work area obtained by wide-area electromagnetic method;

[0052] Step S200: Acquire seismic data of the work area;

[0053] Step S300: constructing multiple geoelectrical models corresponding to different geological structures based on target electrical data and seismic data;

[0054] Step S400: inverting the target electrical data based on each geoelectrical model to obtain a first inversion result corresponding to the geoelectrical model;

[0055] Step S500: obtaining a fitting error based on each geoelectric model and a first inversion result corresponding to the geoelectric model, where the fitting error is an error in fitting the actual geological structure of the work area based on the geoelectric model;

[0056] Step S600: selecting the first inversion result corresponding to the minimum fitting error as the second inversion result;

[0057] Step S700: Obtaining a geological interpretation result based on the second inversion result.

[0058] In this step, by acquiring target electrical data and seismic data of the work area, multiple geoelectric models corresponding to different geological structures are constructed based on the target electrical data and seismic data, and the target electrical data are inverted based on each geoelectric model to obtain a first inversion result corresponding to the geoelectric model, and a fitting error is obtained based on the geoelectric model and the first inversion result corresponding to the geoelectric model, and the first inversion result corresponding to the smallest fitting error is selected as the second inversion result, and a geological interpretation result is obtained based on the second inversion result. According to the geological interpretation method of an embodiment of the present application, multiple geoelectric models of different geological structures are established based on the target electrical data and seismic data. When constructing a geoelectric model for a complex area, the accuracy of the geoelectric model is improved compared to the traditional model established with a single seismic data as a constraint. The target electrical data are inverted based on each geoelectric model to obtain multiple first inversion results, and the first inversion result with the smallest fitting error is selected as the second inversion result. Since the second inversion result has the smallest fitting error, it is closest to the actual situation of the work area. The geological interpretation result obtained by interpreting the second inversion result has a small error and high accuracy.

[0059] like Figure 2 As shown, according to an embodiment of the present application, the step S100 of "obtaining target electrical method data of the work area" is further explained. Step S100 includes but is not limited to step S110 and step S120:

[0060] Step S110: obtaining original electrical data of the work area;

[0061] Step S120: pre-processing the original electrical method data to obtain target electrical method data.

[0062] In this step, the original electrical data of the work area is obtained. The original electrical data is the detection data obtained by detecting each point in a section of the work area using the wide-area electromagnetic method. The original electrical data is preprocessed to reduce the noise in the original electrical data and obtain the target electrical data.

[0063] According to an embodiment of the present application, in step S120, "pre-processing the original electrical method data to obtain target electrical method data" includes but is not limited to step S121:

[0064] Step 121: Perform Fourier transform, flying spot elimination and static correction on the original electrical method data to obtain target electrical method data.

[0065] In this step, the original electrical data is de-noised by Fourier transform, and the noise and electrical signal in the original electrical data are separated. Then, the flying points of the original electrical data are eliminated, and the Li index method is used in combination with the terrain characteristics of the work area to identify the static effects caused by surface resistivity anomalies and terrain undulations. Static correction is then performed on the points with static effects to achieve a high degree of separation between noise and electrical signals, reduce the impact of noise, and obtain target electrical data with a higher data signal-to-noise ratio. Figure 3 As shown in FIG, the target electrical method data obtained after preprocessing includes an original data curve graph, a pseudo-seismic curve graph and an equal frequency curve graph.

[0066] like Figure 4 As shown, according to one embodiment of the present application, the step S300 of "constructing multiple geoelectric models corresponding to different geological structures based on target electrical data and seismic data" is further explained, and the step S300 includes step S310, step S320, step S330, step S340, step S350 and step S360.

[0067] Step S310: Acquire well logging resistivity data, well logging formation characteristic data, and well logging structure characteristic data of the work area;

[0068] Step S320: performing electrical analysis on each stratum in the work area according to the well logging resistivity data to obtain electrical stratification results;

[0069] Step S330: Determine seismic interpretation models of multiple different geological structures by combining well logging stratigraphic characteristic data, well logging structural characteristic data, and seismic data;

[0070] Step S340: obtaining a formation structure model based on the target electrical data;

[0071] Step S350: establishing a geological structure model corresponding to each seismic interpretation model according to the multiple seismic interpretation models and the stratum structure model;

[0072] Step S360: Assign values ​​to each geological structure model according to the electrical stratification result to obtain multiple geoelectrical models of different geological structures.

[0073] In this step, the well logging resistivity data, well logging formation characteristic data and well logging structural characteristic data of the work area are obtained. The electrical properties of each stratum in the work area are analyzed based on the well logging resistivity data to obtain the electrical stratification results. Since the interpretation of seismic data requires the establishment of a velocity model, the geological structures interpreted by different velocity models are different. In the work area with complex structure, such as Figure 3As shown, the left side of the profile has strong fault tectonic activity, the seismic data has a low signal-to-noise ratio and cannot establish an accurate velocity model, which leads to multiple interpretation results of the profile. Therefore, the seismic data can be interpreted in combination with the well logging stratigraphic characteristic data and the well logging structural characteristic data to determine the possible multiple seismic interpretation models. The original data curve, pseudo-seismic curve and isofrequency curve are analyzed to determine the address significance, such as Figure 3 As shown, the left side of the original data curve has multiple irregularities, and the resistivity curve has a significant "drop." The corresponding pseudo-seismic curve also has tilted intersecting events at the same location, and irregularities also appear at the same point on the isofrequency curve. Therefore, it is inferred that three faults exist in the area, corresponding to the three irregularities on the left side of the figure. The curve on the right side of the original data curve has a generally better shape, with good lateral continuity of the events in the pseudo-seismic plot, and an overall layered distribution of electrical characteristics. A qualitative analysis of the work area profile using the original data curve, pseudo-seismic curve, and isofrequency curve revealed the distribution of the main faults and strata, dividing the profile into several regions and thus developing a stratigraphic model for the work area. A geological structural model corresponding to each seismic interpretation model was then established based on the multiple seismic interpretation models and stratigraphic structural models. The geological structural model was assigned values ​​based on the electrical stratification results, and multiple geoelectrical models of different geological structures were established.

[0074] It should be noted that when assigning a value to each region in the geological structure model, the resistivity value assigned to each region is the average resistivity value of all electrical layers in the region.

[0075] According to an embodiment of the present application, step S700 “obtaining a geological interpretation result according to the second inversion result” is further explained, and step S700 includes but is not limited to step S710.

[0076] Step S710: interpreting the second inversion result according to the electrical layering result to obtain a geological interpretation result.

[0077] In this step, according to the electrical stratification results, the electrical marker layer is determined from the multiple electrical layers in the second inversion result. Based on the electrical marker layer, each electrical layer except the electrical marker layer is calibrated in combination with the sedimentary characteristics and electrical characteristics of the stratum, and then further geological interpretation is performed to obtain the geological interpretation results, such as Figure 5 As shown, Figure 5 This is the result map of geological interpretation results.

[0078] According to an embodiment of the present application, step S400 of "inverting the target electrical data based on each geoelectrical model to obtain a first inversion result corresponding to the geoelectrical model" is further explained. Step S400 includes but is not limited to step S410.

[0079] Step S410: performing iterative calculations on the target electrical data according to each geoelectrical model and the minimum support constraint theory to obtain a first inversion result corresponding to the geoelectrical model.

[0080] In this step, based on the geoelectric model, the target electrical data are iteratively calculated using Zodananov's minimum support constraint theory to obtain the first inversion result.

[0081] It should be noted that, to ensure accuracy, the number of iterative calculations is 50 times. To ensure the accuracy of constrained inversion, the number of iterative calculations can also be set to other numbers, such as 60 times.

[0082] According to an embodiment of the present application, step S500 of “obtaining a fitting error according to each geoelectric model and a first inversion result corresponding to the geoelectric model” is further explained. Step S500 includes but is not limited to step S510.

[0083] Step S510: Calculate the second norm between the geoelectric model and the first inversion result corresponding to the geoelectric model to obtain a fitting error corresponding to the first inversion result.

[0084] In this step, after each iterative calculation obtains the first inversion result, the second norm between the geoelectric model and the first inversion result corresponding to the geoelectric model is calculated to obtain the fitting error corresponding to the first inversion result, so that in the subsequent steps, the first inversion result corresponding to the smallest fitting error is selected as the second inversion result. Since the fitting error is the smallest, the selected second inversion result is closest to the actual situation of the work area. Figure 6 As shown, Figure 6 This is the fitting error discrimination diagram of each geoelectric model. Among them, the fitting error of geoelectric models 1-6 is the smallest and is closest to the actual situation of the work area.

[0085] In addition, if Figure 7As shown, an embodiment of the present application further discloses a geological interpretation device 100, including: a data acquisition module 110, a model construction module 120, an inversion module 130 and a result output module 140, the data acquisition module 110 is used to acquire target electrical data and seismic data of a work area, the work area includes multiple strata, the target electrical data includes electric field data of any section of the work area obtained by wide-area electromagnetic method, the model construction module 120 is used to construct multiple geoelectric models corresponding to different geological structures based on the target electrical data and seismic data, the inversion module 130 is used to invert the target electrical data based on each geoelectric model respectively, to obtain a first inversion result corresponding to the geoelectric model, to obtain a fitting error based on the geoelectric model and the first inversion result corresponding to the geoelectric model, the fitting error being the error based on the geoelectric model fitting the actual geological structure of the work area, the first inversion result corresponding to the fitting error with the smallest numerical value is selected as the second inversion result, and the result output module 140 is used to obtain a geological interpretation result based on the second inversion result.

[0086] According to a geological interpretation device 100 of one embodiment of the present application, target electrical data and seismic data of a work area are acquired, and multiple geoelectric models corresponding to different geological structures are constructed based on the target electrical data and seismic data. The target electrical data are inverted based on each geoelectric model to obtain a first inversion result corresponding to the geoelectric model. A fitting error is obtained based on the geoelectric model and the first inversion result corresponding to the geoelectric model. The first inversion result corresponding to the fitting error with the smallest numerical value is selected as a second inversion result, and a geological interpretation result is obtained based on the second inversion result. According to a geological interpretation device 100 of one embodiment of the present application, multiple geoelectric models of different geological structures are established using target electrical data and seismic data. When constructing a geoelectric model for a complex area, the accuracy of the geoelectric model is improved compared to a traditional model established with a single seismic data as a constraint. The target electrical data is inverted based on each geoelectric model to obtain multiple first inversion results, and the first inversion result with the smallest fitting error is selected as the second inversion result. Since the second inversion result has the smallest fitting error, it is closest to the actual situation of the work area. The geological interpretation result obtained by interpreting the second inversion result has a small error and high accuracy.

[0087] In addition, if Figure 8 As shown, an embodiment of the present application further discloses an electronic device 200, comprising: at least one processor 210; at least one memory 220 for storing at least one program; when the at least one program is executed by the at least one processor 210, the geological interpretation method as described above is implemented.

[0088] According to an electronic device 200 of an embodiment of the present application, by acquiring target electrical data and seismic data of a work area, a plurality of geoelectric models corresponding to different geological structures are constructed based on the target electrical data and seismic data, the target electrical data are inverted based on each geoelectric model, a first inversion result corresponding to the geoelectric model is obtained, a fitting error is obtained based on the geoelectric model and the first inversion result corresponding to the geoelectric model, the first inversion result corresponding to the smallest fitting error is selected as the second inversion result, and a geological interpretation result is obtained based on the second inversion result. According to an electronic device 200 of an embodiment of the present application, a plurality of geoelectric models of different geological structures are established based on the target electrical data and seismic data. When constructing a geoelectric model for a complex area, the accuracy of the geoelectric model is improved compared to a traditional model established based on a single seismic data constraint. The target electrical data are inverted based on each geoelectric model to obtain a plurality of first inversion results, the first inversion result with the smallest fitting error is selected as the second inversion result. The second inversion result is closest to the actual situation of the work area because it has the smallest fitting error. The geological interpretation result obtained by interpreting the second inversion result has a small error and high accuracy.

[0089] In addition, an embodiment of the present application further discloses a computer-readable storage medium, which stores a computer-executable program. When the computer-executable program is executed by a computer, it is used to implement the geological interpretation method as described above.

[0090] According to a computer-readable storage medium of an embodiment of the present application, by acquiring target electrical data and seismic data of a work area, multiple geoelectric models corresponding to different geological structures are constructed based on the target electrical data and seismic data, the target electrical data are inverted based on each geoelectric model to obtain a first inversion result corresponding to the geoelectric model, a fitting error is obtained based on the geoelectric model and the first inversion result corresponding to the geoelectric model, the first inversion result corresponding to the smallest fitting error is selected as the second inversion result, and a geological interpretation result is obtained based on the second inversion result. According to a computer-readable storage medium of an embodiment of the present application, multiple geoelectric models of different geological structures are established based on the target electrical data and seismic data. When constructing a geoelectric model for a complex area, the accuracy of the geoelectric model is improved compared to a traditional model established based on a single seismic data constraint. The target electrical data are inverted based on each geoelectric model to obtain multiple first inversion results, and the first inversion result with the smallest fitting error is selected as the second inversion result. The second inversion result is closest to the actual situation of the work area because it has the smallest fitting error. The geological interpretation result obtained by interpreting the second inversion result has a small error and high accuracy.

[0091] Those skilled in the art will appreciate that all or some of the steps and systems in the method disclosed above can be implemented as software, firmware, hardware, and appropriate combinations thereof. Some physical components or all physical components can be implemented as software executed by a processor, such as a central processing unit, 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 can be distributed on a computer-readable medium, and the computer-readable medium can include computer storage media (or non-transitory media) and communication media (or temporary media). As known to those skilled in the art, the term computer storage media is included in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data) and is volatile and non-volatile, removable, and non-removable. Computer storage media includes, but is 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 tapes, disk storage, or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, as is well known to those skilled in the art, communication media typically 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.

[0092] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present application.

Claims

1. A geological interpretation method, characterized in that: include: Acquiring target electrical data of a work area, the work area including multiple strata, the target electrical data including electric field data of any section of the work area obtained by wide-area electromagnetic method; Obtaining seismic data of the work area; constructing a plurality of geoelectrical models corresponding to different geological structures according to the target electrical data and the seismic data; Inverting the target electrical data based on each of the geoelectrical models to obtain a first inversion result corresponding to the geoelectrical model; Obtaining a fitting error based on each geoelectric model and the first inversion result corresponding to the geoelectric model, wherein the fitting error is an error in fitting the actual geological structure of the work area based on the geoelectric model; Selecting the first inversion result corresponding to the fitting error with the smallest value as the second inversion result; A geological interpretation result is obtained according to the second inversion result.

2. The geological interpretation method according to claim 1, characterized in that: The obtaining of target electrical method data of the work area includes: Obtaining original electrical data of the work area; The raw electrical method data are preprocessed to obtain target electrical method data.

3. The geological interpretation method according to claim 2, characterized in that: The preprocessing of the original electrical method data to obtain target electrical method data includes: performing Fourier transformation, flying spot elimination and static correction on the original electrical method data to obtain the target electrical method data.

4. The geological interpretation method according to claim 1, characterized in that: The step of constructing a plurality of geoelectrical models corresponding to different geological structures based on the target electrical data and the seismic data includes: Acquiring well logging resistivity data, well logging formation characteristic data, and well logging structural characteristic data of the work area; Conducting electrical analysis on each stratum in the work area according to the well logging resistivity data to obtain electrical stratification results; Determining seismic interpretation models of multiple different geological structures by combining the well logging formation characteristic data, the well logging structural characteristic data, and the seismic data; obtaining a formation structure model according to the target electrical data; Establishing a geological structure model corresponding to each of the seismic interpretation models according to the plurality of seismic interpretation models and the stratum structure model; The geoelectrical models of multiple different geological structures are obtained by assigning values ​​to the geological structure models according to the electrical stratification results.

5. The geological interpretation method according to claim 4, characterized in that: Obtaining a geological interpretation result according to the second inversion result includes: interpreting the second inversion result according to the electrical stratification result to obtain the geological interpretation result.

6. The geological interpretation method according to claim 1, characterized in that: The inverting the target electrical data based on each of the geoelectrical models to obtain a first inversion result corresponding to the geoelectrical model includes: iteratively calculating the target electrical data according to each of the geoelectrical models and the minimum support constraint theory to obtain the first inversion result corresponding to the geoelectrical model.

7. The geological interpretation method according to claim 1, characterized in that: Obtaining a fitting error according to each geoelectric model and the first inversion result corresponding to the geoelectric model includes: calculating a binary norm between the geoelectric model and the first inversion result corresponding to the geoelectric model to obtain the fitting error corresponding to the first inversion result.

8. A geological interpretation device, characterized in that: include: a data acquisition module, configured to acquire target electrical data and seismic data of a work area, wherein the work area includes multiple strata, and the target electrical data includes electric field data of any section of the work area obtained by wide-area electromagnetic method; A model building module, configured to build a plurality of geoelectrical models corresponding to different geological structures based on the target electrical data and the seismic data; an inversion module, configured to invert the target electrical data based on each of the geoelectrical models to obtain a first inversion result corresponding to the geoelectrical model; obtain a fitting error based on the geoelectrical model and the first inversion result corresponding to the geoelectrical model, wherein the fitting error is an error in fitting the actual geological structure of the work area based on the geoelectrical model; and select the first inversion result corresponding to the fitting error with the smallest value as the second inversion result; The result output module is used to obtain a geological interpretation result based on the second inversion result.

9. An electronic device, characterized in that include: at least one processor; at least one memory for storing at least one program; When at least one of the programs is executed by at least one of the processors, the geological interpretation method according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium, characterized in that A program executable by a processor is stored therein, and when the program executable by the processor is executed by the processor, it is used to implement the geological interpretation method according to any one of claims 1 to 7.

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