A seismic horizon interpretation verification method and device, electronic equipment and storage medium
By establishing seismic comparison profiles using central and standard well points under conditions of low well network density, well-seismic calibration and seismic horizon tracking are performed. This solves the problem that existing technologies cannot verify the rationality of seismic horizon interpretation in three-dimensional space, and achieves highly accurate two-dimensional and three-dimensional seismic horizon interpretation.
Patent Information
- Application Number
- CN202510410050.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2045-04-02
AI Technical Summary
Existing technologies, after projecting seismic interfaces into three-dimensional space, cannot effectively verify the spatial rationality of seismic horizon interpretation, especially when well network density is low, making it difficult to accurately analyze the transformation relationships between horizons.
Based on the preset central well point and standard well point, a seismic comparison profile is established. Through well-seismic calibration and seismic horizon tracking, continuous rolling layer flattening is performed to adjust the upper and lower horizon relationships of the seismic horizons, and comparison and verification are carried out in three-dimensional space.
It achieves highly accurate two-dimensional and three-dimensional seismic horizon interpretation, ensuring the spatial rationality of seismic horizon interpretation, forming a geologically significant seismic interpretation framework, and improving the interpretation accuracy in inter-well areas.
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Figure CN120294839B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of oil exploration and development, and particularly relates to a seismic horizon interpretation verification method and device, an electronic device and a storage medium. BACKGROUND
[0002] Seismic horizon interpretation is a key technology in seismic exploration, and is usually important basic data for drawing a stratigraphic structure map, a thickness map, paleogeomorphology recovery and seismic attribute extraction in geological work. The seismic horizon interpretation is a method for obtaining seismic horizon data by tracking and interpreting a target horizon on a seismic data volume according to seismic reflection characteristics of a target horizon. In the process of seismic horizon interpretation, the amplitude, phase, shape, continuity and characteristic combination of a seismic signal are mainly concerned. The technology is particularly important for oil and gas exploration and development, and is a way of using seismic data to study subsurface reservoir geology, because the accuracy of the technology directly affects the rationality of subsurface reservoir interpretation.
[0003] Seismic horizon correction is one of important work of seismic horizon interpretation, and the accuracy of the result directly affects the understanding of subsequent bottom, structure and reservoir. Nowadays, horizon correction mainly relies on well-seismic calibration by using stratified data on a well to correct the accuracy of seismic horizon. However, the correction method requires a high well pattern density, and it is difficult to fully use seismic information in the case of low well pattern density. The accuracy is good in a joint well profile, but it is difficult to accurately grasp the accuracy in the interwell area, so a method for analyzing the correctness in space is needed.
[0004] Seismic horizon flattening is a commonly used method for checking whether it is correct or not, but it is usually checked by a single profile, so it cannot analyze the correctness of a seismic interface in space. Although three-dimensional display technology can identify the similarity of a single layer after projecting it into three-dimensional space, it is difficult to analyze the transformation relationship between horizons, and cannot verify the rationality of the seismic horizon interpretation in space. SUMMARY
[0005] Therefore, it is necessary to provide a seismic horizon interpretation verification method, device, electronic device and storage medium to solve the technical problem that the rationality of the seismic horizon interpretation in space cannot be verified after projecting a seismic interface into three-dimensional space.
[0006] To solve the above technical problem, in a first aspect, the present application provides a seismic horizon interpretation verification method, comprising:
[0007] establishing a plurality of seismic correlation profiles passing through a center well point based on the center well point and a plurality of standard well points;
[0008] well-seismic calibration is performed on the plurality of seismic correlation profiles;
[0009] Based on the reflection characteristics of the seismic contrast profiles and the results of the well-seismic calibration, seismic horizon tracking is performed on the seismic contrast profiles, and all the tracked seismic horizons are continuously and rollingly horizon flattened on the seismic contrast profiles, and the seismic horizons are corrected based on the change trend between the upper and lower horizons of the flattened seismic horizons.
[0010] The seismic contrast profiles after the seismic horizon correction are projected into a three-dimensional space, and compared with a preset seismic axis in the three-dimensional space, and if there is no difference, it is confirmed that the verification is completed.
[0011] In some embodiments of the present application, the establishment of the seismic contrast profiles passing through the center well point based on the preset center well point and the plurality of standard well points comprises:
[0012] The well connection profile of the center well point and the plurality of standard well points is constructed;
[0013] Based on the well connection profile, a plurality of seismic contrast profiles are constructed with the center well point as the center and according to a preset interval angle.
[0014] In some embodiments of the present application, the well-seismic calibration of the plurality of seismic contrast profiles comprises:
[0015] The standard well points on the seismic contrast profile are stratigraphically divided;
[0016] The standard well points after the stratigraphic division are sequentially subjected to synthetic seismograms and time-depth conversion to obtain the positions of the strata of each standard well on the seismic interface.
[0017] In some embodiments of the present application, the stratigraphic division of the standard well on the seismic contrast profile comprises:
[0018] Based on the principle of stratigraphic correlation and the preset marker layer, the standard well is stratigraphically divided based on the cycle correlation method.
[0019] In some embodiments of the present application, the seismic horizon tracking of the plurality of seismic contrast profiles based on the reflection characteristics of the seismic contrast profiles and the results of the well-seismic calibration comprises:
[0020] For any seismic contrast profile, a stratigraphic framework division scheme is determined based on the corresponding reflection characteristics;
[0021] Based on the stratigraphic framework division scheme and the results of the well-seismic calibration, the seismic horizon tracking is performed on the seismic contrast profile;
[0022] Based on a preset line spacing, the seismic horizon tracking is performed on other seismic contrast profiles except the seismic contrast profile.
[0023] In some embodiments of the present application, the seismic horizon tracking on the seismic correlation profile based on the results of the stratigraphic framework division scheme and the well-seismic calibration comprises:
[0024] constructing a stratigraphic framework on the seismic correlation profile based on the stratigraphic framework division scheme;
[0025] tracking the seismic horizons in the stratigraphic framework based on the positions of the stratigraphic horizons of the standard wells on the seismic interface.
[0026] In some embodiments of the present application, the continuous rolling layer flattening of the tracked seismic horizons on the seismic correlation profile and the correction of the tracked seismic horizons on the seismic correlation profile based on the variation trend between the upper and lower horizons of the flattened seismic horizons comprise:
[0027] layer-by-layer layer flattening of the seismic horizons of the seismic correlation profile;
[0028] if the flattened seismic horizons and the upper and lower horizons of the seismic horizons diverge or converge, it is judged that the seismic horizon tracking of the seismic correlation profile is correct, otherwise the seismic horizon tracking is re-performed.
[0029] In a second aspect, a device for seismic horizon interpretation verification is provided, comprising:
[0030] a profile establishing module configured to establish a plurality of seismic correlation profiles passing through a center well point based on the center well point and a plurality of standard well points;
[0031] a well-seismic calibration module configured to calibrate the plurality of seismic correlation profiles;
[0032] a layer flattening verification module configured to track seismic horizons on the plurality of seismic correlation profiles based on the reflection characteristics of the seismic correlation profiles and the results of the well-seismic calibration, and continuously rolling layer flattening of all the tracked seismic horizons on the seismic correlation profiles, and correcting the seismic horizons based on the variation trend between the upper and lower horizons of the flattened seismic horizons;
[0033] a three-dimensional verification module configured to project the plurality of seismic correlation profiles after the seismic horizon correction to a three-dimensional space, and compare with a preset seismic axis in the three-dimensional space, if there is no difference, it is confirmed that the verification is completed.
[0034] In a third aspect, the present application further provides an electronic device, comprising:
[0035] a memory configured to store a program;
[0036] A processor coupled to the memory is configured to execute the program stored in the memory to implement the steps of the seismic horizon interpretation verification method according to any one of the above method items.
[0037] In a fourth aspect, the present application further provides a storage medium comprising:
[0038] A computer readable program or instruction for storing, which can implement the steps of the seismic horizon interpretation verification method according to any one of the above method items when executed by a processor.
[0039] The present application has the following beneficial effects: The seismic horizon interpretation verification method provided by the present application is based on a preselected representative center point and a standard point in a work area, a seismic correlation profile is established through the center point according to a preset interval, and then seismic horizon tracking is performed on the seismic correlation profile. The mutual relationship between the upper and lower strata on the seismic horizon is checked by continuously rolling layer flattening of the tracked horizon, the verification of the seismic horizon interpretation is completed, and the mutual relationship between the upper and lower strata is adjusted by continuously rolling the seismic correlation profile to make the mutual relationship between the upper and lower strata consistent with the geological understanding, so that a high-precision two-dimensional profile is obtained. Finally, each two-dimensional profile is transmitted to a three-dimensional space to obtain a high-precision three-dimensional seismic model, so that the rationality of each seismic horizon interpretation in space can be verified, a seismic interpretation framework with geological significance is formed, and the technical problem that the rationality of the seismic horizon interpretation in space cannot be verified after the seismic interface is projected into a three-dimensional space in the prior art is effectively solved. BRIEF DESCRIPTION OF DRAWINGS
[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0041] Figure 1 A flowchart of an embodiment of the seismic horizon interpretation verification method provided by the present application;
[0042] Figure 2 A flowchart of an embodiment of step S102 in the method; Figure 1
[0043] Figure 3 A radial seismic correlation profile provided by the present application Figure 1 A schematic diagram of an embodiment of the present application;
[0044] Figure 4 A schematic diagram of an embodiment of the reflection characteristics of the seismic correlation profile provided by the present application;
[0045] Figure 5 For Figure 1 A flow chart of an embodiment of step S103;
[0046] Figure 6 For Figure 5 A flow chart of an embodiment of step S502;
[0047] Figure 7 A structural schematic diagram of an embodiment of the seismic horizon interpretation verification device provided by the present application;
[0048] Figure 8 A structural schematic diagram of an embodiment of the electronic device provided by the present application. DETAILED DESCRIPTION
[0049] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0050] In the description of the embodiments of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more. The association relationship of the associated objects is described, which means that there can be three relationships, for example: A and / or B, which can represent the following three cases: A exists alone, A and B exist together, and B exists alone.
[0051] The "first", "second", and the like described in the embodiments of the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the technical features limited by "first" and "second" can explicitly or implicitly include at least one of the features.
[0052] In this document, the reference to "embodiments" means that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily mutually exclusive or alternative to other embodiments. The skilled person in the art explicitly and implicitly understands that the embodiments described herein can be combined with other embodiments.
[0053] Before the embodiments are displayed, the following terms are explained:
[0054] Well: refers to a drilled well, which is a vertical or inclined underground passage drilled for the purpose of geological exploration, oil and gas exploitation or scientific research, etc.
[0055] Layer flattening analysis: By flattening the seismic reflection horizons along a specific geological interface, the paleogeomorphology during the geological history is restored, and the paleostructure, paleodepositional characteristics and geological evolution of the underlying strata are investigated.
[0056] Continuous well section: It refers to the continuous geological section formed by comprehensive analysis of geological data of multiple wells, such as lithology, rock thickness, fossil data, etc. It can intuitively show the continuity of strata at different depths, helping geologists better understand the structure and distribution of underground strata.
[0057] Cycle correlation: Based on core and logging information, taking stratigraphic marker beds and spatial evolution of sedimentary facies as control, considering factors such as cycle characteristics, sedimentary microfacies combination and sand body configuration, the boundaries of high-order genetic stratigraphic units are correlated, the relationship between spatial distribution of genetic stratigraphic units and sedimentary facies evolution is analyzed, and the results of isochronous correlation are improved.
[0058] Reflection signal: It is the energy record of the reflection of seismic waves by underground stratum interfaces, and is the key information carrier for revealing underground structure and lithological characteristics.
[0059] Seismic interface: It refers to the interface in the underground medium layer that can reflect or refract artificial seismic waves, usually the wave impedance interface or velocity interface.
[0060] Seismic horizon tracking: It is the core step in seismic data interpretation, mainly used to identify the same phase axis (i.e. stratum interface reflection signal) in seismic data, so as to infer the underground geological structure and reservoir distribution.
[0061] The present application provides a kind of seismic horizon interpretation verification method, photovoltaic shelter power system and control method, the following are explained respectively.
[0062] Figure 1 As shown in Figure Figure 1 , the seismic horizon interpretation verification method includes:
[0063] S101, based on the center well point and a plurality of standard well points, a plurality of seismic correlation sections passing through the center well point are established.
[0064] It should be noted that when selecting the center well point and the standard well point, the representative well point in the study area should be selected as the center well point based on regional geological understanding, because the selected center well point is representative and has a standard role in the stratigraphic division of the area, and the stratigraphic division result is the most accurate. After determining the center well, find the standard well in each direction of the study area to provide support for the next step.
[0065] Further, the method steps of the present application are all performed in the petrel software, and modeling analysis is performed in the petrel to more intuitively analyze the correlation of the seismic horizon in space.
[0066] In order to improve the rationality of the final seismic horizon interpretation result in space, as many representative original samples as possible need to be obtained, such as Figure 2 In some embodiments of the present application, step S101 specifically comprises:
[0067] S201, constructing a connected well profile of the center well point and the plurality of standard well points;
[0068] S202, based on the connected well profile, constructing a plurality of seismic correlation profiles with the center well point as the center and according to a preset interval angle.
[0069] Preferably, the center well point is taken as the center, and 30° is taken as the interval angle to divide to obtain the common center point radial seismic correlation profile as shown in the drawing. Figure 3
[0070] S102, calibrating the plurality of seismic correlation profiles.
[0071] In order to further improve the accuracy of seismic horizon tracking, such as Figure 4 In some embodiments of the present application, step S102 comprises:
[0072] S401, stratigraphic division is performed on the standard well points on the seismic correlation profile.
[0073] Specifically, according to the principle of stratigraphic correlation, the stratigraphic division is performed on the standard well based on the method of cycle correlation with a preset marker layer as the basis.
[0074] S402, synthetic seismograms and time-depth conversion are performed on the standard well points after the stratigraphic division, to obtain the positions of the strata of each standard well on the seismic interface.
[0075] S103, based on the reflection characteristics of the seismic correlation profile and the results of the well-seismic calibration, seismic horizon tracking is performed on the plurality of seismic correlation profiles, and all the tracked seismic horizons are continuously rolled and flattened on the seismic correlation profile, and the seismic horizons are corrected based on the change trend between the upper and lower horizons of the flattened seismic horizons.
[0076] In some embodiments of the present application, step S103 comprises: Figure 5
[0077] S501, for any seismic correlation profile, a stratigraphic framework division scheme is determined based on the corresponding reflection characteristics.
[0078] Specifically, a stratigraphic framework division scheme is formed by comparing seismic profile reflection characteristics, and a stratigraphic framework division scheme is formed Figure 6 For example, the second-order sequence interface features on the seismic profile are obvious, and are all strong amplitude and continuous reflection, and local areas have reflection features such as truncation and onlap. The strata inside the second-order sequence interface are mostly medium-strong reflection or weak reflection, and have poor continuity.
[0079] S502, performing seismic horizon tracking on the seismic comparison profile based on the stratigraphic framework division scheme and the well-seismic calibration result;
[0080] S503, performing layer flattening on the seismic horizons of the seismic comparison profile layer by layer;
[0081] S504, if the flattened seismic horizons and the upper and lower horizons of the seismic horizons are jointly thickened and diverged or jointly converged and thinned, it is judged that the seismic horizon tracking of the seismic comparison profile is correct, and the next step is entered, otherwise, the seismic horizon tracking is performed again;
[0082] S505, performing seismic horizon tracking on other seismic comparison profiles except the above seismic comparison profile based on a preset line spacing;
[0083] Specifically, the center well point is taken as a starting point, the stratification point on the radial profile is taken as a starting point, and the seismic horizon division comparison is performed on the connecting lines of the main lines at a certain line spacing.
[0084] It should be noted that in the embodiment, whether the seismic horizon interpretation tracked by the present application is correct is confirmed, and if feasible, it is indicated that the other profiles are equivalent to the sample profile in terms of correctness, and therefore, layer flattening is only needed to be performed layer by layer according to the line spacing, so that the same correction accuracy can be achieved with less work.
[0085] S506, performing layer flattening on the seismic horizons of other seismic comparison profiles layer by layer;
[0086] S507, if the flattened seismic horizons and the upper and lower horizons of the seismic horizons are jointly thickened and diverged or jointly converged and thinned, it is judged that the seismic horizon tracking of the seismic comparison profile is correct, otherwise, the seismic horizon tracking is performed again.
[0087] It should be noted that layer flattening analysis is performed on each seismic horizon interpreted by the radial seismic comparison profile, and through the layer flattening, the relationship between the upper and lower seismic reflection layers is found. After flattening, the upper and lower layers may be equal or jointly thickened and diverged or jointly converged and thinned. This situation generally indicates that the comparison horizon is correct. If the upper and lower horizons are concave or convex in the same trend, it is very likely that the horizon is wrong during the comparison. The upper convexity may be a local horizon tracking deviation, and the lower concave may be a tracked horizon deviation. At this time, adjustment is needed.
[0088] For example, the second-order sequence interface features on the seismic profile are obvious, and are all strong amplitude and continuous reflection, and local areas have reflection features such as truncation and onlap. The strata inside the second-order sequence interface are mostly medium-strong reflection or weak reflection, and have poor continuity. Figure 6In some embodiments of the present application, step S502 comprises:
[0089] S601, constructing a formation skeleton on a seismic correlation profile based on a formation skeleton division scheme.
[0090] S602, performing seismic horizon tracking in the formation skeleton based on the position of the formation of each standard well on the seismic interface.
[0091] It can be understood that in the present embodiment, the large structure is first divided on the seismic correlation profile by the formation skeleton division scheme, and then the seismic horizon is refined at each level structure according to the position of the formation of each standard well on the seismic interface.
[0092] Through the above steps, the present application has obtained a seismic horizon interpretation with high accuracy in two-dimensional level, and further converts these two-dimensional seismic horizon interpretations into three-dimensional seismic horizon interpretations, so that they also have relevance in space, such as Figure 1 The present application further comprises the following steps:
[0093] S104, projecting the corrected seismic horizon of the plurality of seismic correlation profiles into a three-dimensional space, and comparing with a preset seismic axis in the three-dimensional space, if there is no difference, it is confirmed that the verification is completed.
[0094] Specifically, for the three-dimensional seismic model obtained by projecting the corrected plurality of seismic correlation profiles into the three-dimensional space, the preset seismic axis is rolled and compared in the main line direction and the contact line direction respectively, if there is no difference, the verification is completed.
[0095] Compared with the prior art, the seismic horizon interpretation verification method provided by the present application is based on the preselected representative center point and standard point in the work area, takes the center point as the center, establishes a seismic correlation profile through the center point according to the preset interval, then performs seismic horizon tracking on the seismic correlation profile, views the mutual relationship of the upper and lower formations on the seismic horizon by continuously rolling and flattening the tracked horizons, completes the verification of the seismic horizon interpretation, and adjusts the seismic horizon of the continuously rolling seismic correlation profile to make the mutual relationship of the upper and lower formations meet the geological understanding, obtains a high-precision two-dimensional profile, finally transmits each two-dimensional profile to a three-dimensional space, and obtains a high-precision three-dimensional seismic model, so as to verify the rationality of each seismic horizon interpretation in space, form a seismic interpretation framework with geological significance, and effectively solve the technical problem that the prior art cannot verify the rationality of the seismic horizon interpretation in space.
[0096] As Figure 7 In a second aspect, the present application further provides a seismic horizon interpretation verification device 70, comprising:
[0097] The profile creation module 710 is used to create several seismic comparison profiles passing through the center well point based on a preset center well point and several standard well points.
[0098] Well-seismic calibration module 720 is used to perform well-seismic calibration on several seismic comparison profiles;
[0099] The layer flattening and verification module 730 is used to track seismic horizons of several seismic comparison profiles based on the reflection characteristics of the seismic comparison profiles and the results of well-seismic calibration, and to continuously roll and flatten all the tracked seismic horizons on the seismic comparison profiles, and to correct the seismic horizons based on the changing trend between the upper and lower horizons of the flattened seismic horizons.
[0100] The 3D verification module 740 is used to project several seismic comparison profiles after seismic horizon correction into 3D space and compare them with the preset seismic axis in 3D space. If there is no difference, the verification is confirmed to be complete.
[0101] like Figure 8 Thirdly, the present invention also provides an electronic device 80, comprising:
[0102] Memory 810 is used to store programs;
[0103] The processor 820, coupled to the memory 810, is used to execute the program stored in the memory 810 to implement the steps in the seismic horizon interpretation and verification method described in any of the above-mentioned method items.
[0104] It should be understood that when the processor 820 executes the magnetic resonance image optimization program in the memory 810, in addition to the functions mentioned above, it can also perform other functions, as can be found in the description of the corresponding method embodiments above.
[0105] Furthermore, this embodiment of the invention does not specifically limit the type of electronic device 80 mentioned. Electronic device 80 can be a mobile phone, tablet computer, personal digital assistant (PDA), wearable device, laptop computer, or other portable electronic device. Exemplary embodiments of portable electronic devices include, but are not limited to, portable electronic devices running iOS, Android, Microsoft, or other operating systems. The aforementioned portable electronic device can also be other portable electronic devices, such as a laptop computer with a touch-sensitive surface (e.g., a touch panel). It should also be understood that in some other embodiments of the invention, electronic device 80 may not be a portable electronic device, but rather a desktop computer with a touch-sensitive surface (e.g., a touch panel).
[0106] Fourthly, the present invention also provides a storage medium, comprising:
[0107] A computer readable storage medium for storing a program or instructions, which, when executed by a processor, can implement the steps of the seismic horizon interpretation verification method in any one of the above method items.
[0108] Those skilled in the art can understand that all or part of the processes of the above-mentioned embodiments can be completed by a computer program instructing relevant hardware (such as a processor, a controller, etc.) to complete. The computer program can be stored in a computer readable storage medium. The computer readable storage medium is a disk, an optical disk, a read-only memory, or a random access memory, etc.
[0109] The above describes in detail a seismic horizon interpretation verification method, a photovoltaic shelter power supply system, and a control method provided by the present application. This document applies specific examples to describe the principles and implementation manners of the present application. The above description of the embodiments is only used to help understand the method and the core idea of the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manners and application ranges can be changed. In summary, the content of the present description should not be understood as a limitation of the present application.
Claims
1. A method of seismic horizon interpretation verification, characterized by, The method comprises the following steps: establishing a plurality of seismic correlation profiles passing through the center well point based on the preset center well point and a plurality of standard well points; calibrating the plurality of seismic correlation profiles; tracking the seismic horizons of the plurality of seismic correlation profiles based on the reflection characteristics of the seismic correlation profiles and the calibration results, and continuously rolling layer flattening of all tracked seismic horizons on the seismic correlation profiles, and correcting the seismic horizons based on the change trend between the upper and lower horizons of the flattened seismic horizons; projecting the plurality of seismic correlation profiles after the correction of the seismic horizons to a three-dimensional space, and comparing with a preset seismic axis in the three-dimensional space, and if there is no difference, it is confirmed that the verification is completed; wherein the step of establishing a plurality of seismic correlation profiles passing through the center well point based on the preset center well point and a plurality of standard well points comprises: constructing a connecting well profile of the center well point and the plurality of standard well points; based on the connecting well profile, a plurality of seismic correlation profiles are constructed with the center well point as the center and at a preset interval angle.
2. The seismic horizon interpretation verification method of claim 1, wherein, The step of calibrating the plurality of seismic correlation profiles comprises: stratigraphic division of the standard well points on the seismic correlation profiles; synthetic seismograms and time-depth conversion are performed on the standard well points after stratigraphic division to obtain the positions of the strata of each standard well on the seismic interface.
3. The seismic horizon interpretation verification method of claim 2, wherein, The step of stratigraphic division of the standard well on the seismic correlation profile comprises: based on the principle of stratigraphic correlation and the preset marker layer, the standard well is stratigraphically divided based on the cycle correlation method.
4. The seismic horizon interpretation verification method of claim 1, wherein, The step of tracking the seismic horizons of the plurality of seismic correlation profiles based on the reflection characteristics of the seismic correlation profiles and the calibration results, and continuously rolling layer flattening of all tracked seismic horizons on the seismic correlation profiles, and correcting the seismic horizons based on the change trend between the upper and lower horizons of the flattened seismic horizons comprises: for any seismic correlation profile, a stratigraphic framework division scheme is determined based on the corresponding reflection characteristics; tracking the seismic horizons of the seismic correlation profile based on the stratigraphic framework division scheme and the calibration results; layer flattening of the seismic horizons of the seismic correlation profile is performed layer by layer; if the flattened seismic horizons and the upper and lower horizons of the seismic horizons are divergent or convergent, it is judged that the seismic horizon tracking of the seismic correlation profile is correct and the next step is entered, otherwise the seismic horizon tracking is re-performed; tracking the seismic horizons of other seismic correlation profiles except the seismic correlation profile based on a preset line spacing; layer flattening of the seismic horizons of the other seismic correlation profiles is performed layer by layer; if the flattened seismic horizons and the upper and lower horizons of the seismic horizons are divergent or convergent, it is judged that the seismic horizon tracking of the seismic correlation profile is correct, otherwise the seismic horizon tracking is re-performed.
5. The seismic horizon interpretation verification method of claim 4, wherein, The step of tracking the seismic horizons of the seismic correlation profile based on the stratigraphic framework division scheme and the calibration results comprises: constructing a stratigraphic framework on the seismic correlation profile based on the stratigraphic framework division scheme; In the formation framework, seismic horizon tracking is performed based on the position of the formation of each standard well on the seismic interface.
6. The seismic horizon interpretation verification method of claim 1, wherein, The several seismic correlation profiles after the seismic horizon correction are projected into three-dimensional space, compared with the preset seismic axis in the three-dimensional space, and if there is no difference, it is confirmed that the verification is completed, including: The three-dimensional seismic model obtained by projecting the several seismic correlation profiles after the correction into three-dimensional space is rolled in the main line direction and the contact line direction respectively, and compared with the seismic axis in the rolling process to determine whether there is a difference in seismic horizon interpretation, and if there is no difference, the verification is completed.
7. A seismic horizon interpretation verification device, characterized by, Including: The profile establishing module is used to establish several seismic correlation profiles passing through the center well point based on the preset center well point and several standard well points, including constructing the well connection profile of the center well point and the several standard well points; based on the well connection profile, the center well point is taken as the center, and several seismic correlation profiles are constructed according to the preset interval angle; The well-seismic calibration module is used to calibrate the several seismic correlation profiles; The layer flattening verification module is used to perform seismic horizon tracking on the several seismic correlation profiles based on the reflection characteristics of the seismic correlation profiles and the results of well-seismic calibration, and continuously roll the layers on the seismic correlation profiles based on the change trend between the upper and lower horizons of the flattened seismic horizons to correct the seismic horizons; The three-dimensional verification module is used to project the several seismic correlation profiles after the seismic horizon correction into three-dimensional space, compare with the preset seismic axis in the three-dimensional space, and if there is no difference, it is confirmed that the verification is completed.
8. An electronic device, comprising: Including: The memory is used to store programs; The processor is coupled with the memory and is used to execute the programs stored in the memory to realize the steps in the seismic horizon interpretation verification method of any one of claims 1 to 6.
9. A storage medium, characterized by Including: The program or instruction stored in the memory is used to store computer readable programs or instructions, which can realize the steps in the seismic horizon interpretation verification method of any one of claims 1 to 6 when executed by the processor.
Citation Information
Patent Citations
Method for quantitatively evaluating formation brittle characteristic
CN105182421A
Multi-attribute constrained well-to-seismic joint multi-class drilling key horizon fine picking method
CN117169970A