Stratum modeling method

A modeling method and stratigraphic technology, applied in the field of stratum modeling based on spatial surface topology analysis, can solve the problems of many manual interactions and large accuracy errors, and achieve the effect of reducing manual interaction operations and improving accuracy

Active Publication Date: 2018-04-24
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

Therefore, 3D geological modeling still needs further research and improvement
Moreover, the existing geological modeling structure modeling process still has the problems of many manual interactions and large accuracy errors

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Embodiment Construction

[0068] 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.

[0069] The current geological model has become an important means of oilfield digitalization, and has become one of the most dynamic research directions in the field of geoscience information technology. In the stage of geological structure interpretation, 3D geological modeling can make up for the shortcomings that structural interpretation mainly depends on plan and section drawings and the need to project ...

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Abstract

The invention provides a stratum modeling method. The method comprises the steps of decomposing a geological curved surface reconstructed based on a seismotectonic interpretation into continuous spatial triangles; carrying out pair-wise intersecting on all triangles with a possible intersecting relation to generate intersection points; on the basis of the triangles, generating intersection lines in the geological curved surface based on the intersection points; re-dividing the triangles including the intersection points based on the intersection lines so as to update the geological curved surface; performing a surface patch division on the updated geological curved surface with the intersection lines and edges of the geological curved surface as borders; and generating a closed body of thegeological curved surface based on the divided surface patches of the geological curved surface with the intersection lines as suture lines. With the stratum modeling method, a manual interactive operation in a geological modeling process can be reduced and the precision of a geological model can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional geological modeling in petroleum geophysical prospecting, and in particular relates to a stratum modeling method based on spatial surface topology analysis. Background technique [0002] 3D geological modeling is a precursor to geological analysis in a 3D environment, using computer technology to integrate spatial information management, geological interpretation, spatial analysis and prediction, geostatistics, entity content analysis, and graphic visualization. Synthetic technology. [0003] 3D geological modeling not only expresses and displays the stratum object itself, but also expresses the interrelationships (such as topological relations and semantic relations) between stratum internal objects, and also stores the attribute information of the objects. At present, not only is there a lack of a unified national standard stratigraphic model, but also no theory and model that can be ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/05
CPCG06T17/05
Inventor 张扬白俊雨
Owner CHINA PETROLEUM & CHEM CORP
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