Multi-point statistical three-dimensional geological model automatic reconstruction method based on local search strategy

A three-dimensional geological and local search technology, applied in computing, 3D modeling, image data processing, etc., can solve the problems of computational efficiency limitation of multi-point statistical reconstruction method, difficulty in guaranteeing the spatial continuity of reconstruction results, etc. performance, reduce search times, and improve simulation efficiency

Active Publication Date: 2018-08-17
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology

Existing multi-point statistical reconstruction methods for global search and matching of all known data are also limited by their computational efficiency
However, it is difficult to ensure the spatial continu

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  • Multi-point statistical three-dimensional geological model automatic reconstruction method based on local search strategy
  • Multi-point statistical three-dimensional geological model automatic reconstruction method based on local search strategy
  • Multi-point statistical three-dimensional geological model automatic reconstruction method based on local search strategy

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Embodiment Construction

[0060] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0061] The embodiment of the present invention provides a multi-point statistical three-dimensional geological model automatic reconstruction method based on a local search strategy, which directly uses two-dimensional horizontal and vertical geological sections to reconstruct a three-dimensional geological structure model, and provides a local Search strategy; this strategy divides the 3D modeling space into several sub-areas according to the spatial interlacing relationship of the known sections, and each sub-area is surrounded by N (1≤N≤6) sub-sections; for each sub-area The unknown attribute position within , and its multi-point statistical information is directly obtained from the N subsections surrounding the subregion: first obtain the surrounding ...

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Abstract

The invention discloses a multi-point statistical three-dimensional geological model automatic reconstruction method based on a local search strategy. The method is characterized by directly using a two-dimensional transverse and longitudinal geological section to reconstruct a three-dimensional geological model, and according to the spatial cross relation of a known section, dividing a three-dimensional modeling space into several subareas, wherein each subarea is surrounded by N (the N is greater than or equal to 1 and is less than or equal to 6) subsections; for a unknown attribute positiondistributed in each subarea, firstly, according to the position, acquiring the N surrounding subsections, and then, according to a set neighborhood parameter and a known data point, customizing dataevents at X, Y and Z directions, using the corresponding data event to scan the subsection at the corresponding direction, and acquiring N condition probability density function; and then, using a reasonable probability fusion strategy to acquire joint probability density distribution, and finally acquiring the attribute value of the position. The method can be popularized and applied in various kinds of three-dimensional geological information systems, geographic information systems and geologic modeling and simulation systems.

Description

technical field [0001] The invention relates to the fields of three-dimensional geological modeling and geological statistical simulation, in particular to a multi-point statistical three-dimensional geological model automatic reconstruction method based on a local search strategy. Background technique [0002] 3D geological modeling and visualization technology is one of the core technologies in the field of geospatial information science, and also the key and basic technology for the construction of 3D geographic and geological information systems. The three-dimensional visual representation of geological structure can provide a more realistic and intuitive description of underground geological phenomena and structures, and has played an important role in the quantitative evaluation of groundwater, oil and solid mineral resources. Spatial heterogeneity and connectivity of reservoirs play an important controlling role in subsurface fluid migration and accumulation, which is...

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Application Information

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IPC IPC(8): G06T17/05G06T17/20
CPCG06T17/05G06T17/20
Inventor 陈麒玉刘刚张志庭何珍文田宜平张夏林张继吟余文迪
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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