Data processing method and system for object source area and deposition area

Abstract

The invention provides a data processing method and system for a source area and a deposition area. The processing method comprises the following steps: interpreting a bottom surface to an intersection of a top surface and a substrate along a substrate surface so as to ensure that the top surface and the substrate intersect; time-depth conversion is conducted on the top face and the bottom face of the overlying stratum in the sedimentary area; respectively interpolating and densifying the top surface and the bottom surface after the time-depth conversion of the overlying strata in the sedimentary area; calculating a negative value of the stratum thickness of the sedimentary area according to the interpolation encrypted data; horizontal seismic interpretation is carried out, and a substrate of a source area is explained; time-depth conversion is carried out on the substrate and the horizontal interpretation layer of the object source area; respectively interpolating and encrypting the substrate after the time-depth conversion and the horizontal interpretation layer after the time-depth conversion in the object source area; calculating the stratum thickness of the source area above the horizontal plane in the stratum deposition period according to the interpolated encrypted data of the source area; and calculating elevation data. Therefore, the integrated ancient landform map can be more coordinated and accurate than the later splicing of the ancient landform map of a single sedimentary area or source area.

Description

Technical Field

[0001] The present invention relates to the technical field of petroleum exploration, and in particular to a method and system for processing data of a provenance area and a sedimentation area. Background Art

[0002] In oil and gas exploration, except for the special study of water depth during the deposition period, the paleo-geomorphology map is generally drawn without considering the water depth, converting the thickness of the sedimentary strata into the paleo-geomorphology map of the deposition period, or directly taking the current landform of the basement strata in the source area as the paleo-geomorphology of the deposition period. Figure 1 It is generally a single form of expression of the sedimentary area or provenance area, which can only reflect the paleo-geomorphic environment of the sedimentary system under the water surface during the sedimentary period or the paleo-geomorphic characteristics of the provenance area that provided terrigenous debris for the sedimentary system. When analyzing the geological information such as the transportation channel and sedimentary area of ​​terrigenous debris from the provenance area to the sedimentary area, geological researchers are usually required to manually combine the paleo-geomorphic maps of the sedimentary area and the provenance area to conduct a comprehensive study. On the one hand, this working method is not easy to accurately splice the boundaries of the sedimentary area and the provenance area. On the other hand, the sources of the paleo-geomorphic maps of different regions are often different, and there are also difficulties in adjusting and unifying the vertical scales of the two. Summary of the invention

[0003] In view of the above problems, the present invention is proposed to provide a method and system for processing source area and deposition area data that overcomes the above problems or at least partially solves the above problems.

[0004] According to one aspect of the present invention, a method for processing data of a provenance area and a deposition area is provided, the processing method comprising:

[0005] Step 1, on a seismic section with overlapping sedimentary features, at the intersection of the bottom surface and the basement, the bottom surface is interpreted along the basement surface to the intersection of the top surface and the basement to ensure that the two intersect;

[0006] Step 2, respectively performing time-depth conversion on the top and bottom surfaces of the overlapping strata in the sedimentary area;

[0007] Step 3, the top surface and bottom surface of the overlapping strata in the sedimentary area after time-depth conversion are interpolated and encrypted respectively;

[0008] Step 4, calculating the negative value of the formation thickness of the sedimentary area based on the interpolated encrypted data;

[0009] Step 5: Perform horizontal seismic interpretation in a sparse grid manner and interpret the basement of the provenance area;

[0010] Step 6, time-depth conversion is performed on the basement and horizontal interpretation layers of the provenance area respectively;

[0011] Step 7, interpolating and encrypting the basement after time-depth conversion and the horizontal interpretation layer after time-depth conversion in the provenance area respectively;

[0012] Step 8, calculating the stratum thickness of the source area above the horizontal plane during the stratum deposition period based on the interpolated encrypted data of the source area;

[0013] Step 9, calculating the normalized provenance area stratum thickness;

[0014] Step 10, based on the negative value of the stratum thickness of the sedimentary area obtained in step 4 and the stratum thickness of the provenance area obtained in step 9, calculate continuous elevation data from the provenance area above the water surface to the sedimentary area below the water surface.

[0015] Optionally, the step 1, on a seismic section with overlapping sedimentary features, at the intersection of the bottom surface and the basement, interpreting the bottom surface along the basement surface to the intersection of the top surface and the basement to ensure that the two intersect, specifically includes:

[0016] In areas with overlapping sedimentary characteristics, the top and bottom surfaces of the strata are interpreted using seismic workstations. At the intersection of the bottom surface and the basement, the bottom surface is interpreted along the basement surface to the intersection of the top surface and the basement to ensure that the two intersect and avoid null values ​​during interpolation;

[0017] Manually connect the strata disconnected by the faults along the fault plane to ensure the continuity of the strata.

[0018] Optionally, the step 2 of performing time-depth conversion on the top surface and the bottom surface of the overlying stratum in the sedimentary area respectively comprises:

[0019] At the seismic workstation, the interpreted top and bottom surfaces are converted into time and depth using the velocity field formula of the study area to obtain two depth horizons.

[0020] Optionally, the step 4, calculating the negative value of the formation thickness of the sedimentary area based on the interpolated encrypted data specifically includes: subtracting the interpolated data of the formation bottom surface after time-depth conversion from the interpolated data of the formation top surface after time-depth conversion to obtain the negative value of the formation thickness of the sedimentary area.

[0021] Optionally, the step 5, performing horizontal seismic interpretation in a sparse grid manner and interpreting the basement of the provenance area specifically includes: performing horizontal seismic interpretation in a sparse grid manner from the intersection of the top surface of the sedimentary area and the basement to the provenance area and interpreting the basement of the provenance area according to research needs or data scope limitations.

[0022] Optionally, the step 6 of performing time-depth conversion on the basement and horizontal interpretation layer of the provenance area respectively specifically includes: performing time-depth conversion on the basement and horizontal interpretation layer of the provenance area respectively using the velocity field formula of the study area.

[0023] Optionally, the step 8, calculating the stratigraphic thickness of the provenance area above the horizontal plane during the stratigraphic deposition period based on the interpolated encrypted data of the provenance area, specifically includes: subtracting the interpolated data of the basement after the time-depth conversion from the interpolated data of the horizontal interpretation layer after the time-depth conversion of the provenance area, to obtain the stratigraphic thickness of the provenance area above the horizontal plane during the stratigraphic deposition period under geological understanding.

[0024] Optionally, the step 9, calculating the normalized stratigraphic thickness of the provenance area specifically includes: dividing the maximum stratigraphic thickness of the sedimentary area by the maximum stratigraphic thickness of the provenance area to obtain a normalization coefficient, and then multiplying the stratigraphic thickness data of the provenance area by the normalization coefficient to obtain the normalized stratigraphic thickness of the provenance area.

[0025] Optionally, the step 10, based on the negative value of the formation thickness of the sedimentary area obtained in step 4 and the formation thickness of the provenance area obtained in step 9, calculates the continuous elevation data from the provenance area above the water surface to the sedimentary area below the water surface, specifically comprising: integrating the negative value of the formation thickness of the sedimentary area obtained in step 4 and the normalized formation thickness of the provenance area obtained in step 9 to obtain continuous elevation data from the provenance area above the water surface to the sedimentary area below the water surface.

[0026] The present invention also provides a provenance area and sedimentation area data processing system, which uses the above-mentioned provenance area and sedimentation area data processing method, and the processing system includes:

[0027] An interpretation module is used to interpret the bottom surface along the basement surface to the intersection of the top surface and the basement on a seismic section with overlapping sedimentary features to ensure that the two intersect;

[0028] The sedimentary area time-depth conversion module is used to perform time-depth conversion on the top and bottom surfaces of the overlapping strata in the sedimentary area;

[0029] Sedimentary area interpolation encryption module, used for interpolation and encryption of the top and bottom surfaces of the overlying strata in the sedimentary area after time-depth conversion;

[0030] A sedimentary area stratum thickness calculation module is used to calculate the negative value of the stratum thickness of the sedimentary area based on the interpolated encrypted data;

[0031] The provenance basement interpretation module is used to interpret horizontal seismic in a sparse grid manner and interpret the basement of the provenance area;

[0032] The provenance time-depth conversion module is used to perform time-depth conversion on the basement and horizontal interpretation layers of the provenance area respectively;

[0033] The interpolation encryption module is used to interpolate and encrypt the basement after time-depth conversion and the horizontal interpretation layer after time-depth conversion in the provenance area;

[0034] The provenance area stratigraphic thickness module is used to calculate the stratigraphic thickness of the provenance area above the horizontal plane of the stratigraphic deposition period based on the interpolated encrypted data of the provenance area;

[0035] Normalization processing module, used to calculate the normalized stratum thickness of the provenance area;

[0036] The elevation data calculation module is used to calculate continuous elevation data from the provenance area above the water surface to the sedimentation area below the water surface according to the negative value of the stratum thickness of the sedimentation area obtained in step 4 and the stratum thickness of the provenance area obtained in step 9.

[0037] The present invention provides a method and system for processing data of a provenance area and a sedimentary area, the processing method comprising: step 1, on a seismic profile with overlapping sedimentary characteristics, at the intersection of the bottom surface and the basement, interpreting the bottom surface along the basement surface to the intersection of the top surface and the basement to ensure that the two intersect; step 2, respectively performing time-depth conversion on the top surface and the bottom surface of the overlapping strata in the sedimentary area; step 3, respectively interpolating and encrypting the top surface and the bottom surface of the overlapping strata in the sedimentary area after time-depth conversion; step 4, calculating the negative value of the stratum thickness of the sedimentary area according to the interpolated encrypted data; step 5, performing horizontal seismic interpretation and solving in a sparse grid manner Release the basement of the provenance area; Step 6, respectively perform time-depth conversion on the basement and horizontal interpretation layer of the provenance area; Step 7, respectively interpolate and encrypt the basement and horizontal interpretation layer after time-depth conversion of the provenance area; Step 8, calculate the stratigraphic thickness of the provenance area above the horizontal plane during the stratigraphic deposition period based on the interpolated and encrypted data of the provenance area; Step 9, calculate the normalized stratigraphic thickness of the provenance area; Step 10, calculate the continuous elevation data from the provenance area above the water surface to the sedimentary area below the water surface based on the negative value of the stratigraphic thickness of the sedimentary area obtained in Step 4 and the stratigraphic thickness of the provenance area obtained in Step 9. It can make the integrated paleo-geomorphology map more coordinated and accurate than the later splicing of the paleo-geomorphology map using a single sedimentary area or provenance area.

[0038] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0040] Figure 1A flowchart of a specific embodiment of a method for processing source area and deposition area data provided by an embodiment of the present invention;

[0041] Figure 2 A schematic diagram of the top and bottom of a stratum interpreted by seismic interpretation in a specific embodiment of the present invention;

[0042] Figure 3 It is a schematic diagram of interpreting the bottom surface of a stratum to the boundary of the top surface in a specific embodiment of the present invention;

[0043] Figure 4 It is a schematic diagram of connecting the boundary points of the same stratum on the upper and lower sides of a fault in a specific embodiment of the present invention;

[0044] Figure 5 A schematic diagram of performing horizontal seismic interpretation toward a source area in a specific embodiment of the present invention;

[0045] Figure 6 A schematic diagram illustrating a substrate of a source region in accordance with an embodiment of the present invention. DETAILED DESCRIPTION

[0046] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0047] The terms "comprises" and "having" and any variations thereof in the description embodiments, claims and drawings of the present invention are intended to cover non-exclusive inclusions, for example, including a series of steps or units.

[0048] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0049] like Figure 1 As shown, Figure 1 The present invention is a flow chart of a method for processing data of provenance areas and sedimentary areas for compiling paleo-geomorphological maps based on stratum thickness.

[0050] Step 101, interpret the top and bottom surfaces of the stratum in the seismic workstation, such as Figure 2 At the intersection of the bottom surface and the base, the bottom surface is interpreted along the base to the intersection of the top surface and the base to ensure that the two intersect, as shown in Figure 3 As shown in the figure, manually connect the boundary points of the same stratum on the upper and lower sides of the fault to ensure the continuity of the stratum. Figure 4 shown.

[0051] Step 102, the top surface and the bottom surface interpreted in the sedimentary area are respectively converted into time and depth using the velocity field formula of the study area in the seismic workstation.

[0052] Step 103, the top surface and the bottom surface of the overlapping strata in the sedimentary area after time-depth conversion are interpolated and encrypted respectively;

[0053] Step 104, subtract the interpolated bottom surface from the interpolated top surface to obtain a negative value (0 to negative value) of the formation thickness of the deposition area.

[0054] Step 105, according to the research needs or data range limitations, horizontal seismic interpretation is performed in a sparse grid from the intersection of the top surface and the basement surface of the sedimentary area to the source area, such as Figure 5 As shown. At the intersection of the top surface and the basement, basement interpretation is made towards the provenance area, such as Figure 6 shown.

[0055] Step 106, respectively perform time-to-depth conversion on the basement and horizontal interpretation layer of the provenance area in the seismic workstation using the velocity field formula of the study area.

[0056] Step 107, interpolating and encrypting the basement after time-depth conversion and the horizontal interpretation layer after time-depth conversion in the provenance area.

[0057] Step 108, subtract the interpolated basement from the interpolated horizontal interpretation layer in the provenance area to obtain the stratigraphic thickness of the provenance area above the horizontal plane of the stratigraphic deposition period under geological understanding (from positive to 0).

[0058] Step 109, the maximum stratum thickness in the sedimentary area is divided by the maximum stratum thickness in the provenance area to obtain a normalization coefficient, and then the stratum thickness data in the provenance area is multiplied by the normalization coefficient to obtain the normalized stratum thickness in the provenance area (positive value to 0).

[0059] Step 110, integrate the negative value (0 to negative value) of the stratigraphic thickness of the sedimentary area obtained in step 104 with the normalized stratigraphic thickness (positive value to 0) of the provenance area obtained in step 9, and obtain continuous elevation data from the provenance area above the water surface to the sedimentary area below the water surface.

[0060] The purpose of the present invention is to provide a processing method for integrating data of provenance area and sedimentary area in the process of compiling paleo-geomorphological maps based on strata with overlapping sedimentary characteristics using strata thickness.

[0061] The present invention provides a method for processing data of provenance areas and sedimentary areas for compiling paleo-geomorphological maps based on stratum thickness. The method for processing data of provenance areas and sedimentary areas for compiling paleo-geomorphological maps based on stratum thickness comprises: step 1, interpreting the top and bottom surfaces of the stratum in a sparse grid manner on a seismic profile having overlapping sedimentary characteristics. At the intersection of the bottom surface and the basement, the bottom surface is interpreted along the basement surface to the intersection of the top surface and the basement to ensure that the two intersect, and the boundary points of the same stratum on the upper and lower plates of the fault are manually connected at the fault to ensure the continuity of the stratum; step 2, respectively performing time-depth conversion on the top and bottom surfaces of the overlapping strata in the sedimentary area using the velocity field formula of the study area; step 3, respectively interpolating and encrypting the top and bottom surfaces of the overlapping strata in the sedimentary area after time-depth conversion; step 4, subtracting the interpolated data of the bottom surface of the stratum after time-depth conversion from the interpolated data of the top surface of the stratum after time-depth conversion to obtain a negative value (0 to negative value) of the stratum thickness in the sedimentary area; step 5, according to the research According to the research needs or data range limitations, a sparse grid horizontal seismic interpretation is performed from the intersection of the top surface of the sedimentary area and the overlap boundary to the source area, and the basement layer of the source area is interpreted; Step 6, the basement of the source area and the horizontal interpretation layer are respectively converted to time depth using the velocity field formula of the study area; Step 7, the basement of the source area after time depth conversion and the horizontal interpretation layer after time depth conversion are interpolated and encrypted respectively; Step 8, the interpolated data of the basement after time depth conversion are subtracted from the interpolated data of the horizontal interpretation layer after time depth conversion in the source area to obtain the stratum thickness of the source area above the horizontal plane of the stratum deposition period under geological understanding (positive value to 0). Step 9, the maximum stratum thickness of the sedimentary area is divided by the maximum stratum thickness of the source area to obtain the normalization coefficient, and then the stratum thickness data of the source area is multiplied by the normalization coefficient to obtain the normalized stratum thickness of the source area (positive value to 0). Step 10, integrate the negative value (0 to negative value) of the stratigraphic thickness of the sedimentary area obtained in step 4 with the normalized stratigraphic thickness (positive value to 0) of the provenance area obtained in step 9 to obtain continuous elevation data from the provenance area above the water surface to the sedimentary area below the water surface.

[0062] The purpose of the present invention can also be achieved by the following technical measures:

[0063] In step 1, on the seismic section with overlapping sedimentary features, the top and bottom surfaces of the strata are interpreted in a sparse grid manner. At the intersection of the bottom surface and the basement, the bottom surface is interpreted along the basement surface to the intersection of the top surface and the basement to ensure that the two intersect. At the fault, the boundary points of the same stratum on the upper and lower sides of the fault are manually connected to ensure the continuity of the stratum;

[0064] In step 2, the top and bottom surfaces interpreted in step 1 are converted into time-depth using the velocity field formula of the study area.

[0065] In step 3, the top surface and the bottom surface of the deposition area which have been time-depth converted in step 2 are interpolated and encrypted respectively.

[0066] In step 4, the interpolated data of the top surface of the formation after time-depth conversion in step 3 is subtracted from the interpolated data of the bottom surface of the formation after time-depth conversion to obtain a negative value (0 to negative value) of the formation thickness in the sedimentary area.

[0067] In step 5, according to the research needs or data range limitations, horizontal seismic interpretation is performed from the intersection of the top surface of the sedimentary area and the basement to the source area in a sparse grid manner and the basement of the source area is interpreted;

[0068] In step 6, the basement and horizontal interpretation layers of the provenance area interpretation in step 5 are converted in time and depth.

[0069] In step 7, the basement after time-depth conversion of the provenance area in step 6 and the horizontal interpretation layer after time-depth conversion are interpolated and encrypted respectively.

[0070] In step 8, the interpolated data of the horizontal interpretation layer after time-depth conversion in the provenance area in step 7 is subtracted from the interpolated data of the basement after time-depth conversion to obtain the stratigraphic thickness of the provenance area above the horizontal plane of the stratigraphic deposition period under geological understanding (from positive to 0).

[0071] In step 9, the maximum formation thickness in the sedimentary area is divided by the maximum formation thickness in the provenance area to obtain a normalization coefficient, and then the formation thickness data in the provenance area is multiplied by the normalization coefficient to obtain the normalized formation thickness in the provenance area (positive value to 0).

[0072] In step 10, the negative value (0 to negative value) of the stratigraphic thickness of the sedimentary area obtained in step 4 is integrated with the normalized stratigraphic thickness (positive value to 0) of the provenance area obtained in step 9 to obtain continuous elevation data from the provenance area above the water surface to the sedimentary area below the water surface.

[0073] Beneficial effects: The data processing method of the provenance area and sedimentary area for compiling paleogeomorphological maps based on stratum thickness in the present invention can make the integrated paleogeomorphological map more coordinated and accurate than the later splicing of paleogeomorphological maps using single sedimentary areas or provenance areas.

[0074] The above specific implementation methods further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific implementation methods of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for processing data of provenance area and sedimentation area, characterized in that: The processing method comprises: Step 1, on a seismic section with overlapping sedimentary features, at the intersection of the bottom surface and the basement, the bottom surface is interpreted along the basement surface to the intersection of the top surface and the basement to ensure that the two intersect; Step 2, respectively performing time-depth conversion on the top and bottom surfaces of the overlapping strata in the sedimentary area; Step 3, the top surface and bottom surface of the overlapping strata in the sedimentary area after time-depth conversion are interpolated and encrypted respectively; Step 4, calculating the negative value of the formation thickness of the sedimentary area based on the interpolated encrypted data; Step 5: Perform horizontal seismic interpretation in a sparse grid manner and interpret the basement of the provenance area; Step 6, time-depth conversion is performed on the basement and horizontal interpretation layers of the provenance area respectively; Step 7, interpolating and encrypting the basement after time-depth conversion and the horizontal interpretation layer after time-depth conversion in the provenance area respectively; Step 8, calculating the stratum thickness of the source area above the horizontal plane during the stratum deposition period based on the interpolated encrypted data of the source area; Step 9, calculating the normalized provenance area stratum thickness; Step 10, based on the negative value of the stratum thickness of the sedimentary area obtained in step 4 and the stratum thickness of the provenance area obtained in step 9, calculate continuous elevation data from the provenance area above the water surface to the sedimentary area below the water surface.

2. A method for processing source area and sedimentation area data according to claim 1, characterized in that: The step 1, on a seismic section with overlapping sedimentary characteristics, at the intersection of the bottom surface and the basement, interpreting the bottom surface along the basement surface to the intersection of the top surface and the basement to ensure that the two intersect, specifically includes: In areas with overlapping sedimentary characteristics, the top and bottom surfaces of the strata are interpreted using seismic workstations. At the intersection of the bottom surface and the basement, the bottom surface is interpreted along the basement surface to the intersection of the top surface and the basement to ensure that the two intersect and avoid null values ​​during interpolation; Manually connect the strata disconnected by the faults along the fault plane to ensure the continuity of the strata.

3. A method for processing source area and sedimentation area data according to claim 1, characterized in that: The step 2 of performing time-depth conversion on the top and bottom surfaces of the overlapping strata in the sedimentary area comprises: At the seismic workstation, the interpreted top and bottom surfaces are converted into time and depth using the velocity field formula of the study area to obtain two depth horizons.

4. A method for processing source area and sedimentation area data according to claim 1, characterized in that: The step 4, calculating the negative value of the formation thickness of the sedimentary area based on the interpolated encrypted data, specifically includes: subtracting the interpolated data of the formation bottom surface after time-depth conversion from the interpolated data of the formation top surface after time-depth conversion to obtain the negative value of the formation thickness of the sedimentary area.

5. A method for processing source area and sedimentation area data according to claim 1, characterized in that: The step 5, performing horizontal seismic interpretation in a sparse grid manner and interpreting the basement of the provenance area specifically includes: performing horizontal seismic interpretation in a sparse grid manner from the intersection of the top surface of the sedimentary area and the basement to the provenance area and interpreting the basement of the provenance area according to research needs or data scope limitations.

6. A method for processing source area and sedimentation area data according to claim 1, characterized in that: The step 6 of performing time-depth conversion on the basement and horizontal interpretation layer of the provenance area respectively specifically includes: performing time-depth conversion on the basement and horizontal interpretation layer of the provenance area respectively using the velocity field formula of the study area.

7. A method for processing provenance and depositional area data according to claim 1, characterized in that: The step 8, calculating the stratigraphic thickness of the provenance area above the horizontal plane during the stratigraphic deposition period based on the interpolated encrypted data of the provenance area, specifically includes: subtracting the interpolated data of the basement after the time-depth conversion from the interpolated data of the horizontal interpretation layer after the time-depth conversion of the provenance area, to obtain the stratigraphic thickness of the provenance area above the horizontal plane during the stratigraphic deposition period under geological understanding.

8. A method for processing provenance and depositional area data according to claim 1, characterized in that: The step 9, calculating the normalized stratigraphic thickness of the provenance area specifically includes: dividing the maximum stratigraphic thickness of the sedimentary area by the maximum stratigraphic thickness of the provenance area to obtain a normalization coefficient, and then multiplying the stratigraphic thickness data of the provenance area by the normalization coefficient to obtain the normalized stratigraphic thickness of the provenance area.

9. A method for processing source area and sedimentation area data according to claim 1, characterized in that: The step 10, based on the negative value of the formation thickness of the sedimentary area obtained in step 4 and the formation thickness of the provenance area obtained in step 9, calculates the continuous elevation data from the provenance area above the water surface to the sedimentary area below the water surface, specifically including: integrating the negative value of the formation thickness of the sedimentary area obtained in step 4 and the normalized formation thickness of the provenance area obtained in step 9 to obtain continuous elevation data from the provenance area above the water surface to the sedimentary area below the water surface.

10. A provenance area and sedimentation area data processing system, using a provenance area and sedimentation area data processing method according to any one of claims 1 to 9, characterized in that: The processing system comprises: An interpretation module is used to interpret the bottom surface along the basement surface to the intersection of the top surface and the basement on a seismic section with overlapping sedimentary features to ensure that the two intersect; The sedimentary area time-depth conversion module is used to perform time-depth conversion on the top and bottom surfaces of the overlapping strata in the sedimentary area; Sedimentary area interpolation encryption module, used for interpolation and encryption of the top and bottom surfaces of the overlying strata in the sedimentary area after time-depth conversion; A sedimentary area stratum thickness calculation module is used to calculate the negative value of the stratum thickness of the sedimentary area based on the interpolated encrypted data; The provenance basement interpretation module is used to interpret horizontal seismic in a sparse grid manner and interpret the basement of the provenance area; The provenance time-depth conversion module is used to perform time-depth conversion on the basement and horizontal interpretation layers of the provenance area respectively; The interpolation encryption module is used to interpolate and encrypt the basement after time-depth conversion and the horizontal interpretation layer after time-depth conversion in the provenance area; The provenance area stratigraphic thickness module is used to calculate the stratigraphic thickness of the provenance area above the horizontal plane of the stratigraphic deposition period based on the interpolated encrypted data of the provenance area; Normalization processing module, used to calculate the normalized stratum thickness of the provenance area; The elevation data calculation module is used to calculate continuous elevation data from the provenance area above the water surface to the sedimentation area below the water surface according to the negative value of the stratum thickness of the sedimentation area obtained in step 4 and the stratum thickness of the provenance area obtained in step 9.

Images