Method and device for quantifying deformation degree of broom-shaped structure in superimposed basin

Abstract

The invention discloses a method and a device for quantifying the deformation degree of a broom-shaped structure in a superimposed basin, and belongs to the technical field of broom-shaped structure deformation degree quantification. According to the method, seismic data, rock core data, outcrop data and physical simulation data are used for quantitatively characterizing the twisting structure deformation of a broom-shaped structure in the superimposed basin; lithologic data and outcrop data are supplemented, and instance data and simulation data are verified; the movement direction of the fault disk is clear. Through a solid geometry method, conversion into corresponding accurate structure deformation identification is realized. The method for analyzing the deformation degree of the broom-shaped structure under the condition that the stretching direction and the stage are controllable is established, the limitation that the broom-shaped structure is attributed to sliding deformation in traditional structural geology is overcome, the structural analysis precision of the basin is improved, the method is suitable for structural deformation analysis of the multi-stage overlapping basin, and a new research technology is provided for stress analysis under multi-stage overlapping.

Description

technical field [0001] The present invention relates to the technical field of quantifying the degree of deformation of broom structures, in particular to a method and device for quantifying the degree of deformation of broom structures in superimposed basins. Background technique [0002] Quantitative analysis of structural deformation is an important part of basin research, and the quantitative results provide reliable reference data for describing the filling pattern of the basin and clarifying the hydrocarbon accumulation process. The traditional study of basin structural deformation is to calculate parameters such as fault throw, fault activity rate, and fault growth index based on seismic data and well logging data. With the introduction of physical simulation into structural geology, the research methods of basin structural deformation are becoming more and more abundant. [0003] Structural deformation often has significant structural inheritance in superimposed bas...

AI Technical Summary

Problems solved by technology

For example, the Cenozoic structural deformation of the Dongpu Sag, Lower Liaohe Sag, and Huimin Sag in the Bohai Bay Basin showed a typical sign of "broom-like structure", which was attributed to strike-slip deformation, but it was not consistent with the regional structure; Due to the limitations of observations, the results of conventional structural deformation calculations have large errors, which affect the accuracy of structural analysis of the basin.

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