Identification method, device and equipment of denudation line and medium

Abstract

The embodiment of the invention discloses a denudation line identification method and device, equipment and a medium. The method comprises the following steps: determining a bottom interface of an overlying stratum of a target stratum according to a bottom interface of the target stratum of a target area and seismic data of the target area; and identifying the denudation line of the target stratum according to the reflection characteristics of the seismic waves of the bottom interface of the overlying stratum. According to the technical scheme, the bottom interface of the overlying stratum of the target stratum is accurately determined through the bottom interface of the target stratum and the seismic data, the denudation line of the target stratum is accurately identified according to the reflection characteristics of the seismic waves of the bottom interface of the overlying stratum, and the method has important significance in guiding oil and gas exploration and development.

Description

Technical Field

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

[0002] The stratigraphic erosion line is of great significance for geological exploration work such as trap identification. At present, the methods for identifying stratigraphic erosion lines include profile method, phase method and waveform analysis method. How to accurately determine the position of stratigraphic erosion lines is of great significance for correctly understanding the distribution and scale of stratigraphic oil 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 further 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] Determine 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;

[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 a device for identifying an ablation line, comprising:

[0008] An overlying stratum determination module 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 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 waves of the bottom interface of the overlying stratum.

[0010] According to another aspect of the present invention, an electronic device is provided, the electronic device 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, and 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 described in 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 embodiment of the present application includes: 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; and identifying the erosion line of the target stratum according to the reflection characteristics of the seismic waves of the bottom interface of the overlying stratum. The technical solution accurately determines the bottom interface of the overlying stratum of the target stratum through the bottom interface of the target stratum and the seismic data, and accurately identifies the erosion line of the target stratum according to the reflection characteristics of the seismic waves of 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 contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily 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 drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

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

[0019] Figure 2 A well-connected seismic profile diagram provided according to the first embodiment of the present application;

[0020] Figure 3 is a flow chart of a method for identifying an ablation line provided according to Embodiment 2 of the present application;

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

[0022] Figure 5 is a structural schematic diagram of an erosion line identification device provided according to Embodiment 3 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] At present, among the commonly used methods for identifying stratum erosion lines / erosion points, the seismic profile targeted by the profile method can clearly reflect the contact relationship of the strata, but when it is close to the erosion point, a seismic blank zone will be generated, which has multiple solutions. The phase method converts seismic data from the time domain to the phase domain to obtain a phase data volume, but due to the velocity difference of the strata above and below the unconformity surface and the difference in the stratum dip and angle, the erosion points characterized by the phase attributes are at different distances from the unconformity, and the erosion strata of different periods cannot be fully characterized. For the waveform analysis method, any change in stratum characteristics will cause changes in the seismic waveform. The waveform change may be caused by lithology changes, or it may be caused by the pinching out of the erosion point, or it may be caused by faults. This possibility brings high multiple solutions to the waveform analysis technology. Based on this, in order to accurately implement the position of the stratum erosion line, a method for identifying the stratum erosion line is proposed, which can accurately identify the position of the stratum erosion line according to the magnitude of the seismic amplitude energy. The identification results are compared and verified with the actual strata encountered in the new drilling. Practice shows that this method has a high accuracy in predicting the stratum erosion line.

[0025] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme 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 described embodiments are only embodiments of a part of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work 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 specification 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 data 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] Embodiment 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 can be applied to the case of identifying a stratum erosion line. The method can be performed 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 according to 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 for geological exploration, and there may be stratum erosion in the target area. The target stratum may be a stratum where stratum erosion occurs, and part of the target stratum may be eroded and part may be preserved. Usually, the erosion position of the target stratum is 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 according to 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 stratum after being flattened, and the dragon top is the top of the target stratum. It can be seen that the dragon top and dragon bottom corresponding to the target stratum are connected on the left, and the distance between the dragon top and the dragon bottom increases from left to right, and then maintains a relatively stable distance, that is, the left side is the erosion area of ​​the target stratum, and the right side is the non-erosion area of ​​the target stratum.

[0032] In the embodiment of the present application, stratum erosion occurs in and near the target stratum. After stratum erosion, the target stratum is missing 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 the seismic profile and other information.

[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 partial area 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 the erosion line of the target stratum according to the reflection characteristics of the seismic waves of the bottom interface of the overlying stratum.

[0036] Among them, the reflection characteristics of seismic waves reflect the information of the bottom interface of the overlying strata. Since the overlying strata are different strata, the reflection characteristics of seismic waves at the bottom interface of the overlying strata are different. The reflection characteristics of seismic waves can specifically be 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 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 of 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 reflection characteristics of the seismic waves are not the same, and the erosion line of the target stratum can be identified based on this.

[0039] The technical solution of the embodiment of the present application includes: 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; and identifying the erosion line of the target stratum according to the reflection characteristics of the seismic waves of the bottom interface of the overlying stratum. The technical solution accurately determines the bottom interface of the overlying stratum of the target stratum through the bottom interface of the target stratum and the seismic data, and accurately identifies the erosion line of the target stratum according to the reflection characteristics of the seismic waves of 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] Among them, the preset thickness can be determined according to actual conditions. Specifically, the bottom interface of the overlying stratum may be a curved surface, and based on the bottom interface, the stratigraphic layer with a preset thickness including the bottom interface can be determined. For example, 0.2 meters upward and 0.2 meters downward from the bottom interface of the overlying stratum, the stratum with a preset thickness is determined, and the erosion line of the target stratum is identified according to 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 a large difference caused by other factors, so the bottom interface is extended to the stratum with a preset thickness, and after the amplitude energy of each position is obtained, 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, and the amplitude energy of each position is represented by different colors, thereby identifying the erosion line of the target stratum.

[0042] Embodiment 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. The 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 according to 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 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.

[0048] Specifically, after determining the bottom interface of the target stratum in the target area, the overlying stratum 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 position according to 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 location is determined, and then the 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, 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.

[0054] In the embodiment of the present application, the reflection characteristic is taken as an example to introduce the 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 strata, 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 of the bottom interface of the overlying stratum, including: dividing at least one calibration area according to the amplitude energy value of the seismic wave of 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 area can be divided according to the amplitude energy value of the seismic wave at the bottom interface of the overlying stratum, that is, all areas with amplitude energy greater than the amplitude energy threshold are divided into calibration areas, and then the areas are adaptively connected to obtain a maximum connected area, and the connected area is used as the erosion area. Specifically, each calibration area can be traversed, and if there are other calibration areas within a preset distance range of the target area, these two areas are connected. After traversing each calibration area, a maximum connected area and some small areas may be obtained, and the largest connected area is used as the erosion area 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 are 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 conduct logging on the target area to determine the logging results at the target position (logging position), and 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 a boundary line between the denudation area and the non-denudation area as the denudation line.

[0062] For example, Figure 4 As shown, the left side of the erosion line is the erosion area, the right side of the erosion line is the non-erosion area, and the erosion line is the boundary 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 embodiment of the present application includes: 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; dividing the erosion area and the non-erosion area of ​​the target stratum according to the amplitude energy value of the seismic wave of the bottom interface of the overlying stratum; determining the boundary line between the erosion area and the non-erosion area as the erosion line. The technical solution accurately identifies the erosion line of the target stratum, which 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 is small, which is the stratum non-erosion zone.

[0066] For the well-connected seismic profile ( Figure 2 ),exist Figure 2 In the above data, there is no target formation in Well X1, the target formation in Well X102 is eroded, and the target formations in Well X104 and Well X52 are not eroded, which is highly consistent with the erosion line and erosion area identified by the method described in the embodiment of the present application. Exploration practice has proved that this idea and erosion line identification technology are effective and feasible in actual complex regional applications, and are worthy of promotion and application in similar regions.

[0067] Embodiment 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 comprises:

[0069] An overlying formation determination module 310 is used to determine a bottom interface of an overlying formation of a target formation according to a bottom interface of a target formation in a target area and seismic data of the target area;

[0070] The denudation line identification module 320 is used to identify the denudation line of the target stratum according to the reflection characteristics of the seismic waves of 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, which 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 seismic data of the target area; an erosion line identification module 320, which is used to identify the erosion line of the target stratum according to the reflection characteristics of the seismic waves of 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 the seismic data, and accurately identifies the erosion line of the target stratum according to the reflection characteristics of the seismic waves of 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, optionally, the erosion line identification module 320 includes:

[0073] A stratum determination unit, configured to determine a stratum having a preset thickness and including the bottom interface according to the bottom interface of the overlying stratum;

[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 division unit, used to divide the target stratum into an erosion zone and a non-erosion zone according to the amplitude energy value of the seismic wave at the 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, optionally, the denudation area division unit includes:

[0080] A calibration area determination subunit, used to divide at least one calibration area 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 stratum according to the obtained maximum connected area.

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

[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 to 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 determination 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, optionally, the device further includes a module for determining the bottom interface of the target formation, specifically including:

[0090] A target seismic data determination unit, used to determine target seismic data corresponding to the bottom interface of the target formation at the logging position according to the well logging curve and seismic data calibrated in the 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 the seismic interpretation technology.

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

[0093] Embodiment 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 required herein.

[0095] like Figure 6 As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and 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 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0096] A number of 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 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 through a computer network such as the Internet and / or various telecommunication networks.

[0097] The processor 11 may be a variety of general and / or dedicated processing components 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 dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the method for identifying the ablation line.

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

[0099] Various implementations of the systems and techniques described above herein 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), systems on chips (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including 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, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

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

[0102] To provide interaction with a user, the systems and techniques described herein may 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 a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0103] The systems and techniques described herein may be implemented in a computing system that includes backend 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 frontend components (e.g., a user computer with a graphical user interface or a 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 backend components, middleware components, or frontend components. The components of the system may 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 a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0105] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0106] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for identifying an erosion line, characterized in that: include: Determine 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; 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.

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

3. The method according to claim 1, characterized in that: The reflection characteristic is amplitude energy; Accordingly, identifying the denudation line of the target stratum according to the reflection characteristics of the seismic waves of 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; The boundary between the ablation area and the non-ablation area is determined as the ablation line.

4. The method according to claim 3, characterized in that: According to the amplitude energy value of the seismic wave at the bottom interface of the overlying stratum, the denudation zone of the target stratum is divided, 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 whose distances to the target calibration area are within a preset distance; The erosion area of ​​the target stratum is determined according to the obtained maximum connected area.

5. The method according to claim 4, characterized in that Determining the denudation area of ​​the target stratum 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 to 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. The method according to claim 1, characterized in that 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 seismic data of the target area, including: The bottom interface of the overlying stratum of the target stratum is determined 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.

7. The method according to claim 1, characterized in that The process of determining the bottom interface of the target stratum includes: Determine the target seismic data corresponding to the bottom interface of the target formation at the logging position according to 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.

8. A device for identifying an ablation line, characterized in that: include: An overlying stratum determination module 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 seismic data of the target area; The erosion line identification module is used to identify the erosion line of the target stratum according to the reflection characteristics of the seismic waves of the bottom interface of the overlying stratum.

9. 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, and 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 one of claims 1 to 7.

10. 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 7 when the instructions are executed.

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