Ancient source system reconstruction method and system

Abstract

The application discloses a kind of palaeo-source-sink system reconstruction method and system, its method includes: obtaining the residual palaeo-source-sink system of the stratum palaeo-source-sink system to be built, the residual palaeo-source-sink system includes residual denudation source area and residual sedimentary area;According to the geomorphic feature of residual denudation source area and the geomorphic feature of residual sedimentary area, the denudation amount of residual denudation source area is recovered, and the denudation source area recovery amount is obtained;According to the geomorphic feature of residual sedimentary area, the denudation amount of residual sedimentary area is recovered, and the sedimentary area recovery amount is obtained;The reconstruction is carried out in combination with the denudation source area recovery amount, the sedimentary area recovery amount and the residual system, and the complete palaeo-source-sink system is obtained;Therefore, without the workload of a large amount of analysis test data, the reconstruction work of ancient continental facies lake basin palaeo-source-sink system can be completed, and the exploration work of oil and gas can be effectively guided.

Description

Technical Field

[0001] This invention relates to the field of ancient terrestrial lacustrine basin technology, specifically to a method and system for reconstructing ancient source-sink system. Background Technology

[0002] Ancient terrestrial basin source-sink systems mainly consist of three parts: erosion source areas, transport areas, and sedimentary areas. For most ancient terrestrial basin source-sink systems, due to the limitations and irreversibility of ancient geological records, the various source-sink system elements are often incomplete. This means that at present, we can only characterize the residual ancient source-sink system elements. Taking the source areas such as the Northwest Miao Uplift, Shaleitian Uplift, and Chengbei Low Uplift in the Bohai Bay Basin as examples, they were all continuously eroded during the Paleogene, and the overlying strata are Neogene. The topography, geomorphology, watersheds, valleys, and residual parent rocks on the top surface of the remaining source areas are a comprehensive product from the erosion of the Paleogene to the end of the Neogene erosion period. They reflect the static characteristics of the source areas after the end of the Paleogene erosion period and are difficult to correspond one-to-one with the dynamic sand-rich sedimentary systems in the stratigraphic units of various Paleogene geological periods. Therefore, only by reconstructing the ancient source-sink system from different geological periods based on the existing residual ancient source-sink system characteristics can we accurately and reliably reveal the characteristics of the ancient source-sink system in a specific period.

[0003] However, to date, no relevant technical solutions have been found for the reconstruction of near-source transport-type "source-sink" systems in ancient terrestrial lacustrine basins. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the above-mentioned background technology and provide a method and system for reconstructing ancient source-sink systems. This method and system can complete the reconstruction of ancient terrestrial lacustrine basin source-sink systems without requiring a large amount of analysis and testing data, and can also effectively guide oil and gas exploration.

[0005] Firstly, a method for reconstructing the ancient source-convergence system is provided, including the following steps:

[0006] Obtain the residual paleosource-sink system of the stratigraphic paleosource-sink system to be constructed, wherein the residual paleosource-sink system includes residual erosion source areas and residual sedimentary areas;

[0007] Based on the geomorphological features of the residual erosion source area and the residual sedimentary area, the erosion amount of the residual erosion source area is recovered to obtain the recovery amount of the erosion source area;

[0008] Based on the geomorphological characteristics of the residual sedimentary area, the amount of erosion in the residual sedimentary area is restored to obtain the amount of sedimentary area restoration.

[0009] The complete paleo-source-sink system is obtained by reconstructing the residual erosion source area, the residual deposition area and the residual system according to the recovered amount of the erosion source area, the recovered amount of the deposition area and the residual system.

[0010] According to the first aspect, in a first possible implementation manner of the first aspect, the step of recovering the erosion amount of the residual erosion source area according to the geomorphic features of the residual erosion source area and the geomorphic features of the residual deposition area to obtain the recovered amount of the erosion source area comprises the following steps:

[0011] The residual deposition area is traced back to above the source buried hill top surface of the residual erosion source area in the order of geomorphic features from bottom to top, and the obtained tracing shape is the recovered amount of the erosion source area.

[0012] According to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the step of obtaining the tracing shape as the recovered amount of the erosion source area comprises the following steps:

[0013] The volume of the tracing shape is equal to the deposition volume of the residual deposition area based on the principle of conservation of mass, and the geometric features of the tracing shape inherit the source buried hill geometric features of the residual erosion source area.

[0014] According to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the step of recovering the erosion amount of the residual deposition area according to the geomorphic features of the residual deposition area to obtain the recovered amount of the deposition area comprises the following steps:

[0015] Each residual stratum of the residual deposition area is extended in the direction of the eroded stratum of the residual deposition area in the order of geomorphic features from bottom to top;

[0016] When the extended residual stratum meets a preset condition, the extension of the residual stratum is terminated, and the recovered amount of the deposition area is obtained by reconstructing the extended residual stratum based on the impression method.

[0017] According to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the step of terminating the extension of the residual stratum when the extended residual stratum meets a preset condition comprises the following steps:

[0018] When the two extended residual strata intersect, the extension of the residual stratum is terminated; or,

[0019] When the extended residual stratum covers the surface of the eroded stratum, the extension of the residual stratum is terminated.

[0020] The second aspect provides a paleo-source-sink system reconstruction system, comprising:

[0021] a residual obtaining module, configured to obtain a residual paleo-source-sink system of a to-be-built stratum paleo-source-sink system, the residual paleo-source-sink system comprising a residual denudation source area and a residual sedimentary area;

[0022] a source restoring module, in communication connection with the residual obtaining module, configured to restore a denudation amount of the residual denudation source area according to a geomorphic feature of the residual denudation source area and a geomorphic feature of the residual sedimentary area, and obtain a denudation source area restoration amount;

[0023] a sedimentation restoring module, in communication connection with the residual obtaining module, configured to restore a denudation amount of the residual sedimentary area according to a geomorphic feature of the residual sedimentary area, and obtain a sedimentary area restoration amount; and

[0024] a reconstruction module, in communication connection with the residual obtaining module, the source restoring module and the sedimentation restoring module, configured to reconstruct, in combination with the denudation source area restoration amount, the sedimentary area restoration amount and the residual system, and obtain a complete paleo-source-sink system.

[0025] According to the second aspect, in a first possible implementation manner of the second aspect, the source restoring module is configured to gradually trace back the residual sedimentary area to above a source buried hill top surface of the residual denudation source area in a top-down order according to the geomorphic feature, and obtain a tracing shape as the denudation source area restoration amount.

[0026] According to the second aspect, in a second possible implementation manner of the second aspect, the source restoring module is configured to make a volume of the tracing equal to a sedimentation volume of the residual sedimentary area based on a conservation of mass principle, and make a geometric feature of a tracing surface inherit a geometric feature of the source buried hill of the residual denudation source area.

[0027] According to the second aspect, in a third possible implementation manner of the second aspect, the sedimentation restoring module is configured to gradually extend each residual stratum of the residual sedimentary area in a direction of a denuded stratum of the residual sedimentary area in a top-down order according to the geomorphic feature; when the extended residual stratum meets a preset condition, the residual stratum extension is terminated, and the sedimentary area restoration amount is obtained based on a mold method according to the extended residual stratum.

[0028] According to the second aspect, in a fourth possible implementation manner of the second aspect, the sedimentation restoring module is configured to terminate the residual stratum extension when the two extended residual strata intersect; or terminate the residual stratum extension when the extended residual stratum covers a denuded stratum surface.

[0029] Compared with the prior art, the present application qualitatively recovers two main denudation amounts of the ancient "source-sink" system, i.e., the denudation of the source area and the denudation of the sedimentary stratum in the sedimentary basin, so as to reconstruct the ancient "source-sink" system of the lacustrine basin. The present application can complete the reconstruction work of the ancient "source-sink" system of the lacustrine basin without a large amount of analysis and test data. Moreover, the reconstruction work of the ancient "source-sink" system can not only reveal the internal relationship between the sedimentary process and various "source-sink" system elements, but also effectively guide the sedimentary facies prediction, the favorable reservoir prediction and the oil and gas exploration. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a flowchart of a method for reconstructing an ancient source-sink system according to an embodiment of the present application;

[0031] Figure 2 is a stratigraphic division diagram of a certain area in the Bohai Bay Basin according to the present application;

[0032] Figure 3 is a characteristic diagram of a residual ancient source-sink system of a certain area in the Bohai Bay Basin according to the present application;

[0033] Figure 4 is a denudation amount recovery diagram of a sediment backfill method according to the present application;

[0034] Figure 5 is a denudation amount recovery diagram of a stratigraphic trend method according to the present application;

[0035] Figure 6 is a structural diagram of a system for reconstructing an ancient source-sink system according to an embodiment of the present application. BRIEF DESCRIPTION OF DRAWINGS:

[0037] 100, a system for reconstructing an ancient source-sink system; 110, a residual acquisition module; 120, a source recovery module; 130, a sediment recovery module; 140, a reconstruction module. DETAILED DESCRIPTION

[0038] Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings. While the present application will be described in conjunction with the specific embodiments, it will be understood that no limitation of the present application is intended. On the contrary, it is intended to cover modifications and equivalents of the present application falling within the spirit and scope of the present application as defined by the appended claims. It should be noted that the method steps described herein can be realized by any combination of hardware and software, and the functions described herein can be realized as physical or logical blocks, or a combination thereof.

[0039] In order for those skilled in the art to better understand the present application, the present application will be further described in detail below in conjunction with the drawings and specific embodiments.

[0040] Note: the examples to be introduced next are only specific examples, and not as a limitation on the embodiments of the present application must be as follows specific steps, values, conditions, data, order, etc. The skilled in the art can be read through the present specification to use the concept of the present application to construct the present specification not mentioned more embodiments.

[0041] Referring to Figure 1 The embodiment of the present application provides a reconstruction method of ancient source-sink system, comprising the following steps:

[0042] S100, obtaining a residual ancient source-sink system of the stratum to be built, the residual ancient source-sink system comprising a residual denudation source area and a residual sedimentary area;

[0043] S200, recovering the denudation amount of the residual denudation source area according to the geomorphic features of the residual denudation source area and the geomorphic features of the residual sedimentary area, and obtaining a denudation source area recovery amount;

[0044] S300, recovering the denudation amount of the residual sedimentary area according to the geomorphic features of the residual sedimentary area, and obtaining a sedimentary area recovery amount;

[0045] S400, reconstructing in combination with the denudation source area recovery amount, the sedimentary area recovery amount and the residual system, and obtaining a complete ancient source-sink system.

[0046] Specifically, in the present embodiment,

[0047] First, a stratum unit division scheme to be measured is established, and on the basis of three-dimensional seismic data and drilling data, the stratum to be measured is divided, a sequence stratigraphic framework is established, referring to Figure 2 The sequence stratigraphic division scheme of Bohai Bay Basin is shown, taking the Paleogene Dongying Formation as an example, the Dongying Formation can be divided into two third-order sequences SQd2 and SQd3 in general, and the third-order sequences can be further divided into three system tracts of lowstand, transgressive and highstand.

[0048] Second, the characteristics of the residual "source-sink" system of the stratum to be measured are finely described, specifically including the denudation source area, the transport area and the sedimentary area. Referring to Figure 3 For the denudation source area, the lithology and the paleogeomorphic features thereof need to be found out by means of drilling data in combination with three-dimensional seismic data, and the distribution features of the divide and the ancient drainage system are determined; for the transport area, the types and the planar distribution of various transport channels can be determined by means of three-dimensional seismic data; for the sedimentary area, the paleogeomorphic features of the stratum to be measured need to be finely described while the sedimentary facies distribution features are found out by means of well-seismic combination.

[0049] Third, the denudation amount recovery, specifically including the denudation amount recovery of the denudation source area and the denudation amount recovery of the sedimentary stratum.

[0050] The fourth step is to reconstruct the source-sink system, and the residual ancient source-sink system is numerized on the basis of the residual ancient source-sink system description, then the denudation amount of the residual source area and the denudation amount of the residual sedimentary area are added to the residual ancient source-sink system, so that the reconstruction of the ancient source-sink system is completed.

[0051] Therefore, the ancient source-sink system reconstruction method of the present application can reconstruct the ancient source-sink system of the ancient continental lake basin on the basis of the accurate description of the residual source-sink system, and according to the sequence stratigraphy, sedimentology and geomorphology theory, the two main denudation amounts of the source-sink system, the denudation of the source area and the denudation of the sedimentary stratum in the sedimentary basin are qualitatively restored, so that the ancient source-sink system of the ancient continental lake basin is reconstructed.

[0052] Moreover, the reconstruction of the ancient source-sink system can not only reveal the internal relationship between the sedimentary process and various elements of the source-sink system, but also effectively guide the sedimentary facies prediction, the favorable reservoir prediction and the oil and gas exploration.

[0053] Preferably, in another embodiment of the present application, the step of "S200, the denudation amount of the residual source area is restored according to the geomorphic features of the residual source area and the geomorphic features of the residual sedimentary area, and the denudation amount of the residual source area is obtained" comprises the following steps:

[0054] The residual sedimentary area is gradually traced back to the top of the source buried hill of the residual source area from bottom to top according to the geomorphic features, and the obtained tracing shape is the denudation amount of the residual source area.

[0055] Preferably, in another embodiment of the present application, the step of "the obtained tracing shape is the denudation amount of the residual source area" comprises the following steps:

[0056] The volume of the tracing is equal to the sedimentary volume of the residual sedimentary area based on the principle of conservation of mass, and the geometric features of the tracing surface inherit the geometric features of the source buried hill of the residual source area.

[0057] Specifically, in the embodiment, the erosion amount of the residual erosion source area is restored by using the classic geomorphology theory and the sediment backfill method. A series of seismic profiles are selected for the source area, and the source buried hill boundary and the sediment stratum boundary are comprehensively interpreted to find out the geometric characteristics of the source buried hill top surface, such as the shape and height, and the distribution characteristics of the sediment stratum, such as the area and thickness. Then, according to the principle of conservation of mass (volume conservation principle), the residual sediment area is gradually traced back to the top surface of the residual erosion source area from bottom to top (from old to new) in order, the volume of the backtracking is equal to the sediment volume of the residual sediment area, and the geometric characteristics of the backtracking surface are referenced and inherited from the geometric characteristics of the residual source buried hill. Thus, the erosion amount of the residual erosion source area is backtracked, and the restoration amount of the sediment area is obtained.

[0058] Referring to Figure 4 As shown in the figure, the erosion amount of the residual erosion source area is mainly determined according to the principle of conservation of mass. The volume of the stratum defined by the T2 and T3 interfaces of the residual sediment area is equal to the erosion volume of the T2 and T3 interfaces of the residual source area, and the same applies to other interfaces. The migration path of the watershed is determined according to the size of the sediment volume of the source peripheral sediment area.

[0059] Preferably, in another embodiment of the present application, the step of “S300, restoring the erosion amount of the residual sediment area according to the geomorphic characteristics of the residual sediment area, and obtaining the restoration amount of the sediment area” comprises the following steps:

[0060] S310, extending each residual stratum of the residual sediment area in the direction of the eroded stratum of the residual sediment area according to the geomorphic characteristics from bottom to top;

[0061] S320, when the extended residual stratum meets the preset condition, the extension of the residual stratum is terminated, and the restoration amount of the sediment area is obtained by reconstructing the extended residual stratum based on the impression method.

[0062] Preferably, in another embodiment of the present application, the step of “S320, when the extended residual stratum meets the preset condition, the extension of the residual stratum is terminated” comprises the following steps:

[0063] When the two extended residual strata intersect, the extension of the residual stratum is terminated; or,

[0064] When the extended residual stratum covers the surface of the eroded stratum, the extension of the residual stratum is terminated.

[0065] Specifically, in the embodiment, referring to Figure 5As shown, for the erosion amount recovery of the residual sedimentary area, the imprint method is mainly used in combination with the stratigraphic trend method to recover the erosion amount, and in the use of the stratigraphic trend method, the recovery amount of the eroded stratum is referred to the underlying stratigraphic trend while following the stratigraphic thinning rule, the boundary of the residual stratum is gradually extended to the direction of the eroded stratum according to the principle of from bottom to top (from old to new), and when the two residual strata are intersected after extension, the extension of the residual stratum is terminated; or when the residual stratum covers the surface of the eroded stratum after extension, the extension of the residual stratum is terminated, that is, the recovery of the stratigraphic erosion amount is considered to be completed. Then, in the numerical seismic stratigraphic workstation, the recovered stratum data is input into the workstation to select the imprint method in the seismic stratigraphic workstation to obtain the sedimentary area recovery amount according to the extended residual stratum.

[0066] It should be noted that the imprint method regards the end of the source potential hill top surface of the paleo-source system and the beginning of the overlying sedimentary period as an isochronous surface, and according to the sediment compensation principle, the mirror image relationship between the overlying new sedimentary stratum and the residual paleogeomorphology is used to reflect the paleogeomorphology.

[0067] Referring to Figure 6 As shown, the present application also provides a paleo-source system reconstruction system 100, comprising: a residual acquisition module 110, a source recovery module 120, a sediment recovery module 130, and a reconstruction module 140.

[0068] The residual acquisition module 110 is used to acquire the residual paleo-source system of the stratum paleo-source system to be built, and the residual paleo-source system comprises a residual erosion source area and a residual sedimentary area.

[0069] The source recovery module 120 is in communication connection with the residual acquisition module 110, and is used to recover the erosion amount of the residual erosion source area according to the geomorphic features of the residual erosion source area and the geomorphic features of the residual sedimentary area, and to acquire the recovery amount of the erosion source area.

[0070] The sediment recovery module 130 is in communication connection with the residual acquisition module 110, and is used to recover the erosion amount of the residual sedimentary area according to the geomorphic features of the residual sedimentary area, and to acquire the recovery amount of the sedimentary area.

[0071] The reconstruction module 140 is in communication connection with the residual acquisition module 110, the source recovery module 120, and the sediment recovery module 130, and is used to reconstruct the complete paleo-source system in combination with the recovery amount of the erosion source area, the recovery amount of the sedimentary area, and the residual system.

[0072] The source recovery module 120 is used to gradually trace back the residual sedimentary area to the top of the source potential hill of the residual erosion source area according to the sequence of geomorphic features from bottom to top, and the obtained tracing shape is the recovery amount of the erosion source area.

[0073] The material source recovery module 120 is configured to make the backtracked volume equal to the deposition volume of the residual deposition area based on the principle of conservation of mass, and make the geometric features of the backtracked surface inherit the source buried hill geometric features of the residual erosion material source area.

[0074] The deposition recovery module 130 is configured to extend each residual stratum of the residual deposition area in the direction of the eroded stratum of the residual deposition area according to the top-down order of the geomorphic features, and terminate the extension of the residual stratum when the extended residual stratum meets a preset condition, and obtain the deposition area recovery amount by reconstructing the extended residual stratum based on the impression method.

[0075] The deposition recovery module 130 is configured to terminate the extension of the residual stratum when the two extended residual strata intersect, or terminate the extension of the residual stratum when the extended residual stratum covers the surface of the eroded stratum.

[0076] Therefore, the present application is based on the accurate depiction of the residual "source-sink" system, and guided by the theories of sequence stratigraphy, sedimentology and geomorphology, and aims at the qualitative recovery of the two main erosion amounts of the "source-sink" system, i.e., the erosion of the material source area and the erosion of the deposition stratum in the deposition basin, to reconstruct the ancient continental lake basin "source-sink" system. The present application can complete the reconstruction of the ancient continental lake basin "source-sink" system without a large amount of analysis and testing work.

[0077] Moreover, the reconstruction of the ancient "source-sink" system can not only reveal the internal relationship between the deposition process and various "source-sink" system elements, but also effectively guide the prediction of sedimentary facies, the prediction of favorable reservoirs and the exploration of oil and natural gas.

[0078] Specifically, the present embodiment corresponds to the above-mentioned method embodiment one by one, and the functions of each module have been described in detail in the corresponding method embodiment, and thus will not be described one by one.

[0079] Based on the same inventive concept, the present application also provides a computer readable storage medium having a computer program stored thereon, and the computer program is executed by a processor to implement all method steps or part of the method steps of the above-mentioned method.

[0080] The present application implements all or part of the above method, and can also be completed by a computer program instructing related hardware. The computer program can be stored in a computer readable storage medium. When the computer program is executed by a processor, the steps of each method embodiment described above can be implemented. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or some intermediate forms. The computer readable medium can include any entity or device capable of carrying computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc. It should be noted that the content of the computer readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.

[0081] Based on the same inventive concept, the embodiments of the present application also provide an electronic device, including a memory and a processor, the memory stores a computer program running on the processor, and the processor implements all or part of the method steps of the above method when executing the computer program.

[0082] The processor can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor, etc. The processor is the control center of the computer device, and connects all parts of the computer device through various interfaces and lines.

[0083] The memory can be used to store computer programs and / or modules, and the processor can realize various functions of the computer device by running or executing the computer programs and / or modules stored in the memory, and calling data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application program (such as a sound playing function, an image playing function, etc.) required by a function; and the data storage area can store data (such as audio data, video data, etc.) created according to the use of the mobile phone. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0084] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, a server or a computer program product. Therefore, the present application can adopt a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer usable storage media (including but not limited to disk storage and optical storage, etc.) containing computer usable program codes.

[0085] The present application is described with reference to flowcharts and / or block diagrams of methods, devices (systems), servers and computer program products according to embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams can be realized by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device that implements the functions specified in the flowcharts and / or block diagrams. Figure 1 one or more flows and / or blocks Figure 1 an apparatus that carries out the functions specified in one or more flows or blocks.

[0086] These computer program instructions can also be stored in a computer readable memory capable of guiding a computer or other programmable data processing device to work in a specific way, so that the instructions stored in the computer readable memory produce a product including instruction apparatus, which realizes the functions specified in the flowcharts and / or block diagrams. Figure 1 one or more flows and / or blocks Figure 1 one or more flows or blocks.

[0087] These computer program instructions can also be loaded into a computer or other programmable data processing devices, so that a series of operational steps are performed on the computer or other programmable devices to generate computer-implemented processes, thus the instructions executed on the computer or other programmable devices provide processes for implementing the functions specified in the flowchart Figure 1 one or more flows and / or blocks Figure 1 one or more blocks or steps of the functions specified in the flowchart

[0088] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A method for reconstructing an ancient source-sink system, characterized in that, The method comprises the following steps: acquiring a residual paleo-source-sink system of a to-be-built stratum paleo-source-sink system, the residual paleo-source-sink system comprising a residual denudation source area and a residual sedimentary area; restoring the denudation amount of the residual denudation source area according to the geomorphic features of the residual denudation source area and the geomorphic features of the residual sedimentary area, and acquiring a denudation source area restoration amount; restoring the denudation amount of the residual sedimentary area according to the geomorphic features of the residual sedimentary area, and acquiring a sedimentary area restoration amount; reconstructing in combination with the denudation source area restoration amount, the sedimentary area restoration amount and the residual system, and acquiring a complete paleo-source-sink system; the step of "restoring the denudation amount of the residual denudation source area according to the geomorphic features of the residual denudation source area and the geomorphic features of the residual sedimentary area, and acquiring a denudation source area restoration amount" comprises the following steps: gradually tracing the residual sedimentary area to above the source buried hill top surface of the residual denudation source area in the order of geomorphic features from bottom to top, and obtaining a denudation source area restoration amount in the shape of the tracing; the step of "restoring the denudation amount of the residual sedimentary area according to the geomorphic features of the residual sedimentary area, and acquiring a sedimentary area restoration amount" comprises the following steps: gradually extending each residual stratum of the residual sedimentary area in the direction of the denuded stratum of the residual sedimentary area in the order of geomorphic features from bottom to top; when the extended residual stratum meets a preset condition, the residual stratum extension is terminated, and the sedimentary area restoration amount is acquired according to the extended residual stratum based on the impression method; the step of "when the extended residual stratum meets a preset condition, the residual stratum extension is terminated" comprises the following steps: when the two extended residual strata intersect, the residual stratum extension is terminated; or when the extended residual stratum covers the surface of the denuded stratum, the residual stratum extension is terminated.

2. The paleo-charging system reconstruction method of claim 1, wherein, the step of "obtaining a denudation source area restoration amount in the shape of the tracing" comprises the following steps: based on the principle of conservation of mass, the volume of the tracing is equal to the deposition volume of the residual sedimentary area, and the geometric features of the tracing surface inherit the source buried hill geometric features of the residual denudation source area.

3. A paleo-source system reconstruction system, characterized by, comprise: a residual acquisition module, configured to acquire a residual paleo-source-sink system of a to-be-built stratum paleo-source-sink system, the residual paleo-source-sink system comprising a residual denudation source area and a residual sedimentary area; a source restoration module, in communication connection with the residual acquisition module, configured to restore the denudation amount of the residual denudation source area according to the geomorphic features of the residual denudation source area and the geomorphic features of the residual sedimentary area, and acquire a denudation source area restoration amount; a sedimentation restoration module, in communication connection with the residual acquisition module, configured to restore the denudation amount of the residual sedimentary area according to the geomorphic features of the residual sedimentary area, and acquire a sedimentary area restoration amount; and a reconstruction module, in communication connection with the residual acquisition module, the source restoration module and the sedimentation restoration module, configured to reconstruct in combination with the denudation source area restoration amount, the sedimentary area restoration amount and the residual system, and acquire a complete paleo-source-sink system. The provenance restoration module is configured to gradually backtrack the residual sedimentary area to above the provenance buried-hill top surface of the residual denudation provenance area according to the sequence of the geomorphic features from bottom to top, and obtain a backtracking shape as the denudation provenance area restoration amount. The sediment restoration module is configured to gradually extend each residual stratum of the residual sedimentary area along the direction of the denuded stratum of the residual sedimentary area according to the sequence of the geomorphic features from bottom to top, terminate the extension of the residual stratum when the extended residual stratum meets a preset condition, and obtain the sedimentary area restoration amount based on the reconstruction of the extended residual stratum according to the impression method. The sediment restoration module is configured to terminate the extension of the residual stratum when the two extended residual strata intersect, or terminate the extension of the residual stratum when the extended residual stratum covers the surface of the denuded stratum.

4. The ancient source and sink system reconstruction system of claim 3, wherein, The provenance restoration module is configured to make the backtracking volume equal to the sediment volume of the residual sedimentary area based on the principle of conservation of mass, and make the geometric features of the backtracking surface inherit the geometric features of the provenance buried hill of the residual denudation provenance area.

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