Strata denudation amount recovery method

A technique of formation erosion and recovery method, applied in seismic signal processing and other directions, can solve problems such as being unsuitable for sedimentary basins, and achieve the effect of strong practicability

Active Publication Date: 2015-12-30
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

The apatite fission track analysis method can simultaneously calculate the time and amount of stratum denudation, but this method is not suitable for sedimentary basins with multi-stage subsidence-uplift multi-cycle development and evolution
[0007] Some of the existing recovery methods for formation denudation are also limited by sample collection. For example, for carbonate formations, apatite and vitrinite cannot be collected, so the vitrinite reflectance method and a

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[0038] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0039] In addition, the steps shown in the flow diagrams of the figures may be performed in a computer system, such as a set of computer-executable instructions, and, although a logical order is shown in the flow diagrams, in some cases, the sequence may be different. The steps shown or described are performed in the order herein.

[0040] Figure 1 to Figure 3 shows the formation of a sedimentary basin wit...

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Abstract

The invention discloses a strata denudation amount recovery method. The method comprises the following steps of carrying out a data acquisition step: acquiring a strata thickness and a strata age of each layer system of a position to be analyzed; carrying out a settlement model establishment step: constructing a settlement model of the position to be analyzed according to the strata thickness and the strata age; carrying out a denudation amount recovery step: calculating an accumulative deposition thickness of the position to be analyzed according to the settlement model and the strata age, and calculating the strata denudation amount of the position to be analyzed according to an accumulation thickness and a strata thickness. The method is suitable for a multi-period settlement-uplifting and multi-period burying-denudation long-term development evolution deposition basin, excessive analysis and test cost does not need to be spent, and the method is not limited by a sample rock type and a stratigraphic buried depth and possesses good enforceability, objectivity and reliability.

Description

technical field [0001] The invention relates to the technical field of geological analysis, in particular to a method for recovering stratum erosion. Background technique [0002] Stratum denudation is a common phenomenon in sedimentary basins, and the degree of stratum denudation will have an important impact on the generation, migration and accumulation of oil and gas in sedimentary basins. Formation denudation volume is also an important parameter in basin simulation, and the restoration of formation denudation volume can provide an important reference for the evaluation of oil and gas resources and the analysis of favorable oil and gas accumulation zones. [0003] If the amount of formation denudation is not large, its impact on oil and gas generation, migration and accumulation may not be considered. However, if the stratum has undergone large denudation, the denudation amount must be restored at this time. Therefore, restoring the denuded thickness of formations is a...

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Application Information

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IPC IPC(8): G01V1/30
Inventor 金之钧李京昌
Owner CHINA PETROLEUM & CHEM CORP
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