A Planar Representation Method of Torsional Structure

A torsional and structural technology, applied in the field of geophysical exploration data processing, can solve the problems that affect the intuitive interpretation of structural maps, the analysis of structural stress field characteristics, and the inability to distinguish normal faults, etc.

Active Publication Date: 2019-12-06
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0003] At present, the research on torsional structure mostly adopts the method similar to the analysis of tensional structure, and the expression of the planar characteristics of torsional fault mainly adopts the illustration of normal fault or translational fault, which is untargeted and intuitive to the particularity of torsional fault. However, the systematic characterization method often cannot be distinguished from the normal fault formed by extension in the structural map, which affects the intuitive interpretation of the structural map and the analysis of the characteristics of the tectonic stress field.

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  • A Planar Representation Method of Torsional Structure
  • A Planar Representation Method of Torsional Structure
  • A Planar Representation Method of Torsional Structure

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[0035] In order to enable those skilled in the art to better understand the technical solutions in this application, the solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described implementation Examples are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0036] The embodiment of the present application provides a plane characterization method of torsional structure, including:

[0037] The purpose of the present invention can be achieved by the following technical measures: the plane characterization method ( figure 1 ),include:

[0038] 1) Using 3D seismic data, combined with the comprehensive analysis results ...

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Abstract

The invention provides a planar representation method for transtension structures. The planar representation method comprises planar representation of the two-plate position, fault direction reversing, a relative motion direction of a single transtension fault, and a transtension ridge, a transtension groove and the combination pattern thereof formed by ground deformation and visually displays the two-plate position, fault direction reversing, the relative movement direction, the deformation characteristics of the stratum and the plane combination pattern. The invention can describe the basic geological characteristics of the transtension structure by two-dimensional graphics, and reflect the kinematic characteristics of the active plate, the relative movement direction, and the deformation characteristics easily neglected in the study; compared with the traditional extensional structure, the expression of strike slip structure is easier to distinguish and the characterization of transtension structures is more comprehensive, more reasonable and more systematic; the sketch map of the study area is more abundant in static information and the kinematics information is more reasonable; the expression of strike slip structure is beneficial to comprehensive and systematic understanding and expression of regional tectonic stress field.

Description

technical field [0001] The invention relates to the technical field of geophysical exploration data processing, in particular to a plane representation method of torsional structures. Background technique [0002] The torsional structure has the mechanical characteristics of tension and torsion, which is the result of the joint action of extension and strike-slip, and is an important manifestation of the horizontal movement of the crust. Because the continent and continental shelf in eastern China were affected by subduction and collision of the Kura-Pacific and Indian Ocean plates in different tectonic movements at different times, twisting factors were injected into the various extensional structural styles formed in the oil-gas-bearing basins in eastern China. A series of torsional structures are formed. Scholars at home and abroad have studied the discovered oil and gas reservoirs of twisted structures, and the results show that twisted structures affect the provenance ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/28
Inventor 张林张云银崔世凌高平张伟忠郭丽娟史士龙李晓晨谢伟徐元刚
Owner CHINA PETROLEUM & CHEM CORP
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