Shale gas two-dimensional earthquake dessert area optimization method and device

Abstract

The invention provides a shale gas two-dimensional earthquake dessert area optimization method and device. The method comprises the steps of acquiring two-dimensional earthquake data and geological logging data of a shale gas work area, wherein the two-dimensional seismic data at least comprises migration data volume data and migration speed volume data; generating optimal parameters according tothe two-dimensional seismic data and the geological logging data, wherein the optimal parameters comprise first-level profile data, a seismic reflection structure diagram, a seismic reflection burialdepth diagram, high-quality shale thickness, first-class fault information and second-class fault information; and determining a dessert region optimization result according to the optimization parameters. According to the embodiment of the invention, a dessert area is optimized according to the two-dimensional seismic data, and the obtained dessert area optimization result guides the deployment of the three-dimensional seismic data acquisition range, so that the three-dimensional seismic data acquisition can be conveniently carried out in a more favorable shale gas block, the batch shale gasdevelopment is carried out, the existing two-dimensional seismic data is reasonably utilized, the cost is reduced, and the problem that shale gas exploration and development area selection work is difficult is solved.

Description

technical field [0001] The invention relates to the technical field of geophysics, in particular to a method and device for optimizing two-dimensional seismic sweet spots of shale gas. Background technique [0002] The sweet spot area refers to the shale area with relatively abundant shale gas and economic exploitation value. At present, the existing shale gas exploration and development are directly using 3D seismic data to select areas, but the acquisition cost of 3D seismic data is high, and it is impossible to spread it in a large area. Therefore, most shale gas development areas have no Sufficient 3D seismic data make it difficult to optimize the sweet spot area. Contents of the invention [0003] The present invention provides a shale gas two-dimensional seismic sweet spot optimization method and device, which can use two-dimensional seismic data to optimize shale gas sweet spots, and the optimization results can be used to guide the deployment of three-dimensional ...

AI Technical Summary

Problems solved by technology

At present, the existing shale gas exploration and development are directly using 3D seismic data to select areas, but the acquisition cost of 3D seismic data is high, and it is impossible to spread it in a large area. Therefore, most shale gas development areas have no Sufficient 3D seismic data make it difficult to optimize the sweet spot

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