Method, device, equipment and medium for identifying erosion lines

Abstract

The embodiments of the present application disclose a method, device, equipment, and medium for identifying an erosion line. The method includes: determining the bottom interface of the overlying stratum of the target stratum based on the bottom interface of the target stratum in the target area and the seismic data of the target area; and identifying the erosion line of the target stratum based on the reflection characteristics of the seismic waves at the bottom interface of the overlying stratum. This technical solution accurately determines the bottom interface of the overlying stratum of the target stratum through the bottom interface of the target stratum and seismic data, and accurately identifies the erosion line of the target stratum based on the reflection characteristics of the seismic waves at the bottom interface of the overlying stratum, which is of great significance for guiding oil and gas exploration and development.

Description

Technical Field

[0001] The present invention relates to the field of geological exploration technology, and in particular to a method, device, equipment and medium for identifying an erosion line. Background Art

[0002] Stratigraphic denudation lines are crucial for geological exploration, including trap identification. Currently, methods for identifying stratigraphic denudation lines include profile analysis, phase analysis, and waveform analysis. Accurately determining their location is crucial for understanding the distribution and size of stratigraphic reservoirs and guiding oil and gas exploration and development. Summary of the Invention

[0003] The present invention provides a denudation line identification method, device, equipment and medium, which can accurately identify the stratum denudation line and thus guide oil and gas exploration and development.

[0004] According to one aspect of the present invention, a method for identifying an ablation line is provided, the method comprising:

[0005] Determining a bottom interface of an overlying stratum of the target stratum based on a bottom interface of a target stratum in the target area and seismic data of the target area;

[0006] The erosion line of the target stratum is identified based on the reflection characteristics of the seismic waves at the bottom interface of the overlying stratum.

[0007] According to another aspect of the present invention, there is provided an apparatus for identifying an ablation line, comprising:

[0008] An overlying stratum determination module is used to determine a bottom interface of an overlying stratum of a target stratum based on a bottom interface of a target stratum in a target area and seismic data of the target area;

[0009] The erosion line identification module is used to identify the erosion line of the target stratum according to the reflection characteristics of the seismic wave at the bottom interface of the overlying stratum.

[0010] According to another aspect of the present invention, an electronic device is provided, comprising:

[0011] at least one processor; and

[0012] a memory communicatively connected to the at least one processor; wherein,

[0013] The memory stores a computer program executable by the at least one processor. The computer program is executed by the at least one processor so that the at least one processor can perform the method for identifying an ablation line according to any embodiment of the present invention.

[0014] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for identifying an ablation line according to any embodiment of the present invention when executed.

[0015] The technical solution of the embodiments of the present application includes: determining the bottom interface of the overlying stratum of the target stratum based on the bottom interface of the target stratum in the target area and seismic data of the target area; and identifying the denudation line of the target stratum based on the reflection characteristics of seismic waves from the bottom interface of the overlying stratum. This technical solution accurately determines the bottom interface of the overlying stratum of the target stratum based on the bottom interface of the target stratum and seismic data, and accurately identifies the denudation line of the target stratum based on the reflection characteristics of seismic waves from the bottom interface of the overlying stratum, which is of great significance for guiding oil and gas exploration and development.

[0016] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a flow chart of a method for identifying an ablation line according to the first embodiment of the present application;

[0019] Figure 2 This is a well-connected seismic profile provided according to Example 1 of the present application;

[0020] Figure 3 This is a flow chart of a method for identifying an ablation line according to the second embodiment of the present application;

[0021] Figure 4 This is a schematic diagram of an erosion line provided according to the second embodiment of the present application;

[0022] Figure 5 This is a schematic structural diagram of an erosion line identification device provided in accordance with the third embodiment of the present application;

[0023] Figure 6 It is a structural schematic diagram of an electronic device for implementing a method for identifying an ablation line according to an embodiment of the present application. DETAILED DESCRIPTION

[0024] Among the commonly used methods for identifying denudation lines and points in stratigraphic formations, the profile method uses seismic profiles that clearly reflect stratigraphic contacts. However, near denudation points, seismic blank zones are generated, resulting in ambiguity. The phase method converts seismic data from the time domain to the phase domain, generating a phase data volume. However, due to velocity differences, dip angles, and angles between the strata above and below the unconformity, the denudation points depicted by the phase attributes vary in distance from the unconformity, failing to fully characterize denuded strata at different times. Regarding the waveform analysis method, any change in stratigraphic characteristics will cause a change in the seismic waveform. Waveform changes can be caused by lithologic changes, pinching out of the denudation point, or faults. These variations lead to high ambiguity in waveform analysis techniques. To accurately locate denudation lines in stratigraphic formations, a denudation line identification method is proposed. This method can accurately identify the location of denudation lines based on the magnitude of seismic amplitude energy. The identification results are compared with actual strata encountered in newly drilled wells. The results have been validated and demonstrated to be highly accurate in predicting denudation lines.

[0025] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0026] It should be noted that the terms "first", "second", "target", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] Example 1

[0028] Figure 1A flowchart of a method for identifying an erosion line is provided for the first embodiment of the present application. The embodiment of the present application is applicable to the case of identifying stratum erosion lines. The method can be executed by an erosion line identification device. The erosion line identification device can be implemented in the form of hardware and / or software. The erosion line identification device can be configured in an electronic device with data processing capabilities. Figure 1 As shown, the method includes:

[0029] S110 , determining a bottom interface of an overlying stratum of the target stratum based on a bottom interface of the target stratum in the target area and seismic data of the target area.

[0030] The target area may be an area undergoing geological exploration, and stratum erosion may occur in the target area. The target stratum may be a stratum where stratum erosion has occurred. Part of the target stratum may be eroded while part is preserved. Typically, the erosion of the target stratum occurs at the point where the target stratum contacts the overlying stratum, and the bottom interface of the target stratum is usually intact.

[0031] The seismic data of the target area can reflect the characteristics of each stratum in the target area. After determining the bottom interface of the target stratum, the characteristics of the target stratum are determined based on the seismic data, and then the layer information (depth, position, etc.) of the bottom interface of the overlying stratum of the target stratum can be obtained. The seismic data can be a seismic profile, etc. The well-connected seismic profile can reflect the stratum distribution in the target area, for example, Figure 2 As shown, the dragon bottom is the bottom of the target formation after being flattened, and the dragon top is the top of the target formation. It can be seen that the dragon top and dragon bottom corresponding to the target formation are connected on the left side. From left to right, the distance between the dragon top and the dragon bottom first increases, and then maintains a relatively stable distance. That is, the left side is the erosion area of ​​the target formation, and the right side is the non-erosion area of ​​the target formation.

[0032] In the embodiment of the present application, stratum erosion occurs in and near the target stratum. After the stratum erosion, the target stratum is lost and its overlying stratum may also be eroded. Therefore, in the target stratum and the overlying stratum part of the target stratum, it is not easy to identify the bottom interface of the overlying stratum based on the information of the corresponding seismic data. It is necessary to identify the bottom interface of the target stratum. After obtaining the bottom interface of the target stratum, the bottom interface of the overlying stratum is determined in combination with data such as the seismic profile.

[0033] It should be noted that the overlying strata of the target stratum may be more than one stratum. The reason is that if the target stratum has not undergone stratum erosion, the overlying stratum of the target stratum may be stratum A, and the overlying stratum of stratum A may be stratum B; after erosion occurs in a part of the target stratum, the eroded part and the overlying stratum (stratum A) of the eroded part disappear, and the overlying stratum of the eroded part becomes stratum B. In this case, the overlying strata of the target stratum are stratum A and stratum B, that is, stratum A is located above the uneroded area of ​​the target stratum, and stratum B is located above the eroded area of ​​the target stratum.

[0034] Furthermore, the bottom interface of the overlying stratum is the top interface of the target stratum. Since the bottom interface of the overlying stratum is the bottom interface of different strata (the bottom interface of stratum A and stratum B), the reflection characteristics of the seismic waves of the bottom interface of the overlying stratum are not the same. Based on this, the erosion line of the target stratum can be identified through subsequent steps.

[0035] S120 , identifying an erosion line of the target stratum according to reflection characteristics of seismic waves at the bottom interface of the overlying stratum.

[0036] The reflection characteristics of seismic waves reflect information about the bottom interface of the overlying strata. Because the overlying strata are different, the reflection characteristics of seismic waves at the bottom interface of the overlying strata vary. The reflection characteristics of seismic waves can specifically include amplitude, phase, frequency, etc. For example, the reflection characteristics of seismic waves can be amplitude characteristics.

[0037] The denudation line of the target stratum refers to the boundary line between the denudation zone and the non-denudation zone of the target stratum. The denudation line of the target stratum is divided according to the reflection characteristics of the seismic waves at the bottom interface of the overlying stratum.

[0038] Specifically, after determining the bottom interface of the overlying stratum, the reflection characteristics of the seismic waves at the bottom interface of the overlying stratum are obtained in combination with the drilling data and the seismic data. Since the overlying stratum includes multiple strata with different properties, that is, the bottom interface of the overlying stratum is the bottom interface of multiple strata, the corresponding seismic wave reflection characteristics are not the same, and the erosion line of the target stratum can be identified based on this.

[0039] The technical solution of the embodiments of the present application includes: determining the bottom interface of the overlying stratum of the target stratum based on the bottom interface of the target stratum in the target area and seismic data of the target area; and identifying the denudation line of the target stratum based on the reflection characteristics of seismic waves from the bottom interface of the overlying stratum. This technical solution accurately determines the bottom interface of the overlying stratum of the target stratum based on the bottom interface of the target stratum and seismic data, and accurately identifies the denudation line of the target stratum based on the reflection characteristics of seismic waves from the bottom interface of the overlying stratum, which is of great significance for guiding oil and gas exploration and development.

[0040] In an embodiment of the present application, optionally, the erosion line of the target stratum is identified based on the reflection characteristics of the seismic waves of the bottom interface of the overlying stratum, including: determining a stratum with a preset thickness including the bottom interface based on the bottom interface of the overlying stratum; and identifying the erosion line of the target stratum based on the reflection characteristics of the seismic waves corresponding to the stratum with the preset thickness.

[0041] The preset thickness can be determined according to actual conditions. Specifically, the bottom interface of the overlying stratum may be a curved surface. Based on the bottom interface, a stratum layer with a preset thickness including the bottom interface can be determined. For example, 0.2 meters above and 0.2 meters below the bottom interface of the overlying stratum can be determined to have a preset thickness. The erosion line of the target stratum can be identified based on the reflection characteristics of the average seismic wave of the stratum with the preset thickness. Exemplarily, in the case where the reflection characteristic is amplitude energy, since the bottom interface of the overlying stratum is a surface, the amplitude energy of each point on the surface may have large differences caused by other factors. Therefore, the bottom interface is extended to the stratum with a preset thickness. After obtaining the amplitude energy of each position, the average value of the amplitude energy is calculated as the amplitude energy of the bottom interface. The amplitude energy of the bottom interface can be represented on a two-dimensional plane, that is, each position on the surface corresponds to the position of the bottom interface of the overlying stratum. The amplitude energy of each position is represented by a different color, thereby identifying the erosion line of the target stratum.

[0042] Example 2

[0043] Figure 3 This is a flow chart of a method for identifying an erosion line provided in Example 2 of the present application. This embodiment of the present application is optimized based on the above embodiment.

[0044] like Figure 3 As shown, the method of the embodiment of the present application specifically includes the following steps:

[0045] S210 , determining a bottom interface of an overlying stratum of the target stratum based on a bottom interface of the target stratum in the target area and seismic data of the target area.

[0046] In the embodiment of the present application, optionally, determining the bottom interface of the overlying stratum of the target stratum according to the bottom interface of the target stratum in the target area and the seismic data of the target area includes:

[0047] The bottom interface of the overlying stratum of the target stratum is determined based on the bottom interface of the target stratum in the target area and the thickness of the target stratum reflected by the seismic data.

[0048] Specifically, after determining the bottom interface of the target stratum in the target area, the overlying layer of the bottom interface of the target stratum can be determined from the stratigraphic layers reflected by the seismic data, and then the bottom interface of the overlying stratum can be determined; specifically, the bottom interface of the overlying stratum can be determined based on the bottom interface of the target stratum and the thickness of the target stratum.

[0049] In the embodiment of the present application, optionally, the process of determining the bottom interface of the target formation includes:

[0050] Determine the target seismic data corresponding to the bottom interface of the target formation at the logging location based on the well logging curve and seismic data calibrated in the target area;

[0051] Seismic interpretation technology is used to track and interpret the bottom interface of the target stratum based on the target seismic data.

[0052] For example, based on seismic interpretation technology, seismic data can be used to accurately track and interpret the bottom interface of the target layer; specifically, after fine calibration of the well seismic data, the bottom interface of the target layer at the logging position is determined, and then seismic interpretation technology is used to track and interpret the bottom interface of the target layer, and the seismic data body is spatially interpolated using the most optimized analysis concept to obtain the stratigraphic data of the bottom interface of the target layer.

[0053] S220: Divide the target stratum into an eroded area and a non-eroded area according to the amplitude energy value of the seismic wave at the bottom interface of the overlying stratum.

[0054] In the embodiment of the present application, the reflection characteristic is taken as an example of amplitude energy.

[0055] Specifically, according to the amplitude energy value of the seismic wave at the bottom interface of the overlying stratum, the area with a large amplitude energy value is divided into an erosion area, and the area with a small amplitude energy value is divided into a non-erosion area.

[0056] Specifically, usually, the erosion zone is an area, and an amplitude energy threshold can be set to divide the erosion zone and the non-erosion zone. However, due to certain errors in the acquisition process of the amplitude energy value of the seismic wave at the bottom interface of the overlying stratum, in the erosion zone, most of the amplitude energy values ​​may be greater than the amplitude energy threshold, and a small part may be less than the amplitude energy threshold, so it is necessary to adaptively determine the erosion zone.

[0057] In an embodiment of the present application, optionally, the erosion zone of the target stratum is divided according to the amplitude energy value of the seismic wave at the bottom interface of the overlying stratum, including: dividing at least one calibration area according to the amplitude energy value of the seismic wave at the bottom interface of the overlying stratum; traversing each calibration area, connecting the target calibration area and the calibration areas within a preset distance from the target calibration area; and determining the erosion zone of the target stratum based on the largest connected area obtained.

[0058] Specifically, at least one calibration region can be demarcated based on the amplitude energy value of the seismic wave at the bottom interface of the overlying stratum. That is, all regions with amplitude energy greater than an amplitude energy threshold are classified as calibration regions. The regions are then adaptively connected to obtain a maximum connected region, which is then used as the erosion region. Specifically, each calibration region can be traversed. If there are other calibration regions within a preset distance range of the target region, these two regions are connected. After traversing all calibration regions, a maximum connected region and several smaller regions may be obtained. The largest connected region is used as the erosion region of the target stratum.

[0059] In an embodiment of the present application, optionally, the erosion area of ​​the target formation is determined based on the largest connected area, including: obtaining logging results at a target position in the target area; if the logging results at the target position indicate that the target position corresponds to the erosion area, extending toward the target position based on the largest connected area so that the extended area includes the target position; and determining the erosion area of ​​the target formation based on the extended area.

[0060] Specifically, the embodiment of the present application will also perform logging on the target area to determine the logging results at the target position (logging position). The logging results indicate whether the target position is an erosion area or a non-erosion area. If the logging result of the target position is that the target position is an erosion area, then based on the largest connected area, it is extended to the target position so that the extended area includes the target position; the extended area is determined to be the erosion area of ​​the target formation.

[0061] S230: Determine the boundary between the erosion area and the non-erosion area as the erosion line.

[0062] For example, Figure 4 As shown, the left side of the erosion line is the erosion area, and the right side of the erosion line is the non-erosion area. The erosion line is the dividing line between the erosion area and the non-erosion area.

[0063] In the embodiment of the present application, optionally, well-connected seismic profiles are extracted to verify the erosion line to verify its rationality and reliability for guiding practical oil and gas exploration.

[0064] The technical solution of the embodiments of the present application includes: determining the bottom interface of the overlying stratum of the target stratum based on the bottom interface of the target stratum in the target area and seismic data of the target area; dividing the target stratum into an eroded area and a non-eroded area based on the amplitude energy value of the seismic wave at the bottom interface of the overlying stratum; and determining the boundary between the eroded area and the non-eroded area as the erosion line. This technical solution accurately identifies the erosion line of the target stratum and is of great significance for guiding oil and gas exploration and development.

[0065] In a certain study area, based on the existing seismic data and well logging data (such as Figure 4 ), using the method proposed in this paper to identify the distribution of erosion zones, it can be seen that the amplitude energy value on the left side of the erosion line is large, which is the stratum erosion zone, and on the right side of the erosion line, the seismic amplitude energy value is small, which is the stratum non-erosion zone.

[0066] For the well-connected seismic profile ( Figure 2 ),exist Figure 2 In the data from Well X1, the target formation was not found, the target formation in Well X102 was eroded, and the target formations in Wells X104 and X52 were not eroded. This is highly consistent with the erosion lines and areas identified by the method described in the examples of this application. Exploration practice has confirmed that this approach and erosion line identification technology are effective and feasible in complex areas and are worthy of promotion and application in similar areas.

[0067] Example 3

[0068] Figure 5 This is a schematic diagram of the structure of an erosion line identification device provided in the third embodiment of the present application. The device can execute the erosion line identification method provided in any embodiment of the present invention and has the corresponding functional modules and beneficial effects of the execution method. Figure 5 As shown, the device includes:

[0069] An overlying stratum determination module 310 is configured to determine a bottom interface of an overlying stratum of a target stratum based on a bottom interface of a target stratum in a target area and seismic data of the target area;

[0070] The denudation line identification module 320 is configured to identify the denudation line of the target stratum based on the reflection characteristics of the seismic waves at the bottom interface of the overlying stratum.

[0071] The technical solution of the embodiment of the present application includes: an overlying stratum determination module 310 for determining the bottom interface of the overlying stratum of the target stratum based on the bottom interface of the target stratum in the target area and the seismic data of the target area; and an erosion line identification module 320 for identifying the erosion line of the target stratum based on the reflection characteristics of seismic waves from the bottom interface of the overlying stratum. This technical solution accurately determines the bottom interface of the overlying stratum of the target stratum based on the bottom interface of the target stratum and seismic data, and accurately identifies the erosion line of the target stratum based on the reflection characteristics of seismic waves from the bottom interface of the overlying stratum, which is of great significance for guiding oil and gas exploration and development.

[0072] In the embodiment of the present application, the erosion line identification module 320 may optionally include:

[0073] a stratum determining unit, configured to determine, based on the bottom interface of the overlying stratum, a stratum having a preset thickness and including the bottom interface;

[0074] The erosion line identification unit is used to identify the erosion line of the target stratum according to the reflection characteristics of the seismic wave corresponding to the stratum with a preset thickness.

[0075] In the embodiment of the present application, optionally, the reflection characteristic is amplitude energy;

[0076] Accordingly, the erosion line identification module 320 includes:

[0077] an erosion zone dividing unit, configured to divide the target stratum into an erosion zone and a non-erosion zone according to an amplitude energy value of a seismic wave at a bottom interface of the overlying stratum;

[0078] The erosion line identification unit is used to determine the boundary line between the erosion area and the non-erosion area as the erosion line.

[0079] In the embodiment of the present application, the erosion area division unit may optionally include:

[0080] a calibration region determination subunit, configured to divide at least one calibration region according to the amplitude energy value of the seismic wave at the bottom interface of the overlying stratum;

[0081] The calibration area connecting subunit is used to traverse each calibration area and connect the target calibration area and the calibration areas within a preset distance from the target calibration area;

[0082] The denudation area determination subunit is used to determine the denudation area of ​​the target formation according to the obtained maximum connected area.

[0083] In the embodiment of the present application, optionally, the denudation area determination subunit is specifically configured to:

[0084] Acquire well logging results at a target location in a target area;

[0085] If the well logging result of the target position indicates that the target position corresponds to the denudation zone, extending the target position based on the largest connected area so that the extended area includes the target position;

[0086] The extended area is used to determine the erosion area of ​​the target formation.

[0087] In the embodiment of the present application, optionally, the overlying stratum determination module 310 includes:

[0088] The overlying stratum determining unit is used to determine the bottom interface of the overlying stratum of the target stratum according to the bottom interface of the target stratum in the target area and the thickness of the target stratum reflected by the seismic data.

[0089] In the embodiment of the present application, the device may optionally further include a module for determining the bottom interface of the target formation, specifically including:

[0090] a target seismic data determining unit, configured to determine target seismic data corresponding to a bottom interface of a target formation at a logging location based on the well logging curve and seismic data calibrated in a target area;

[0091] The bottom interface determination unit of the target stratum is used to track and interpret the bottom interface of the target stratum based on the target seismic data by using seismic interpretation technology.

[0092] An erosion line identification device provided in an embodiment of the present application can execute an erosion line identification method provided in any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method.

[0093] Example 4

[0094] Figure 6 A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0095] like Figure 6 As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., which is communicatively connected to the at least one processor 11. The memory stores a computer program that can be executed by the at least one processor. The processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 into the random access memory (RAM) 13. Various programs and data required for the operation of the electronic device 10 can also be stored in the RAM 13. The processor 11, ROM 12, and RAM 13 are connected to each other via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0096] Multiple components in the electronic device 10 are connected to the I / O interface 15, including an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.

[0097] The processor 11 can be any general-purpose and / or specialized processing component with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any other suitable processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the method for identifying ablation lines.

[0098] In some embodiments, the method for identifying an ablation line can be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the method for identifying an ablation line described above can be performed. Alternatively, in other embodiments, processor 11 can be configured to perform the method for identifying an ablation line in any other suitable manner (e.g., via firmware).

[0099] Various embodiments of the systems and techniques described above can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system-on-chip systems (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include being implemented in one or more computer programs that are executable and / or interpreted on a programmable system that includes at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0100] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer program is executed by the processor, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The computer program may be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0101] In the context of the present invention, computer-readable storage media can be tangible media that can contain or store a computer program for use with an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. Computer-readable storage media can include but are not limited to electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, computer-readable storage media can be machine-readable signal media. More specific examples of machine-readable storage media can include electrical connections based on one or more lines, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0102] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0103] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0104] A computing system may include clients and servers. The clients and servers are typically remote from each other and typically interact via a communication network. This client-server relationship arises through computer programs running on the respective computers, creating a client-server relationship. The server may be a cloud server, also known as a cloud computing server or cloud host. This server is a hosting product within the cloud computing service ecosystem that addresses the management difficulties and limited scalability of traditional physical hosting and VPS services.

[0105] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0106] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A method for identifying an erosion line, characterized in that: include: Determining a bottom interface of an overlying stratum of the target stratum based on a bottom interface of a target stratum in the target area and seismic data of the target area; identifying an erosion line of the target stratum based on reflection characteristics of seismic waves at the bottom interface of the overlying stratum; Wherein, the reflection characteristic is amplitude energy; Accordingly, identifying the erosion line of the target stratum according to the reflection characteristics of the seismic wave at the bottom interface of the overlying stratum includes: dividing the target stratum into an eroded area and a non-eroded area according to the amplitude energy value of the seismic wave at the bottom interface of the overlying stratum; Determine the boundary line between the erosion zone and the non-erosion zone as the erosion line; The erosion zone of the target stratum is divided according to the amplitude energy value of the seismic wave at the bottom interface of the overlying stratum, including: dividing at least one calibration area according to the amplitude energy value of the seismic wave at the bottom interface of the overlying stratum; Traverse each calibration area and connect the target calibration area and the calibration areas within a preset distance from the target calibration area; determining an erosion area of ​​the target formation according to the obtained maximum connected area; The step of determining the erosion area of ​​the target formation according to the largest connected area includes: Acquire well logging results at a target location in a target area; If the well logging result of the target position indicates that the target position corresponds to the denudation zone, extending the target position based on the largest connected area so that the extended area includes the target position; The extended area is used to determine the erosion area of ​​the target formation.

2. The method according to claim 1, characterized in that Identifying the erosion line of the target stratum based on the reflection characteristics of the seismic wave at the bottom interface of the overlying stratum includes: determining a stratum with a preset thickness including the bottom interface of the overlying stratum according to the bottom interface of the overlying stratum; The erosion line of the target stratum is identified according to the reflection characteristics of the seismic wave corresponding to the stratum with the preset thickness.

3. The method according to claim 1, characterized in that Determining the bottom interface of the overlying stratum of the target stratum based on the bottom interface of the target stratum in the target area and the seismic data of the target area includes: The bottom interface of the overlying stratum of the target stratum is determined based on the bottom interface of the target stratum in the target area and the thickness of the target stratum reflected by the seismic data.

4. The method according to claim 1, wherein The process of determining the bottom interface of the target formation includes: Determine the target seismic data corresponding to the bottom interface of the target formation at the logging location based on the well logging curve and seismic data calibrated in the target area; Seismic interpretation technology is used to track and interpret the bottom interface of the target stratum based on the target seismic data.

5. A device for identifying an ablation line, characterized in that: include: An overlying stratum determination module is used to determine a bottom interface of an overlying stratum of a target stratum based on a bottom interface of a target stratum in a target area and seismic data of the target area; an erosion line identification module, configured to identify an erosion line of the target stratum based on reflection characteristics of seismic waves at the bottom interface of the overlying stratum; Wherein, the reflection characteristic is amplitude energy; Correspondingly, the erosion line identification module includes: an erosion zone dividing unit, configured to divide the target stratum into an erosion zone and a non-erosion zone according to an amplitude energy value of a seismic wave at a bottom interface of the overlying stratum; An erosion line identification unit is used to determine the boundary line between the erosion area and the non-erosion area as the erosion line; Among them, the denudation zone is divided into units, including: a calibration region determination subunit, configured to divide at least one calibration region according to the amplitude energy value of the seismic wave at the bottom interface of the overlying stratum; The calibration area connecting subunit is used to traverse each calibration area and connect the target calibration area and the calibration areas within a preset distance from the target calibration area; an erosion area determination subunit, configured to determine the erosion area of ​​the target formation according to the obtained maximum connected area; The denudation zone determination subunit is specifically used for: Acquire well logging results at a target location in a target area; If the well logging result of the target position indicates that the target position corresponds to the denudation zone, extending the target position based on the largest connected area so that the extended area includes the target position; The extended area is used to determine the erosion area of ​​the target formation.

6. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor. The computer program is executed by the at least one processor so as to enable the at least one processor to perform the method for identifying an ablation line according to any one of claims 1 to 4.

7. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for identifying an ablation line according to any one of claims 1 to 4 when the instructions are executed.

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