Igneous rock oil and gas exploration method and device

Abstract

The invention provides an igneous rock oil and gas exploration method and an igneous rock oil and gas exploration device. The method comprises the following steps of generating crater position and igneous rock lithofacies information according to the position of an igneous rock reservoir and characteristic information; generating geophysical reflection characteristic data according to seismic facies analysis, and determining a distribution range of advantageous lithofacies; calculating a stratigraphic strike-slip distance of a deep igneous rock mechanism according to a matching relation of target stratum lithofacies of a volcanic edifice on two sides of a fracture and a corresponding relation of igneous rocks of a middle-shallow layer on the two sides of the fracture; analyzing logging response data of the igneous rocks, and generating advantageous lithology distribution information and thickness data of the deep igneous rock mechanism through natural gamma seismic inversion; acquiring a development part of the fracture of the igneous rock reservoir by using means such as deep and shallow resistivity difference inversion; and generating igneous rock oil and gas reservoir information in the development part through cluster analysis of seismic attributes and two-phase media-based oil and gas detection. By the invention, the accuracy of exploring and predicting the igneous rock oil and gas reservoir and the drilling success rate can be improved.

Description

technical field [0001] The invention relates to the technical field of oil and gas reservoir exploration, in particular to an oil and gas exploration method and device for igneous rocks. Background technique [0002] During the "Eleventh Five-Year Plan" and "Twelfth Five-Year Plan", igneous rock reservoirs have become one of the important fields of oil and gas exploration. However, the existing seismic technology for igneous rock exploration is limited to the application of conventional clastic rock reservoir exploration technology to igneous rock exploration. At present, there is no perfect exploration technology for oil and gas exploration of igneous rocks, especially no exploration and prediction technology developed for the characteristics of igneous rock reservoirs using 3D seismic data covering rich underground geological information. The application of conventional clastic rock reservoir exploration technology to igneous rock exploration does not have a good effect o...

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Problems solved by technology

[0009] Based on the above differences, it is determined that the existing conventional clastic rock reservoir exploration technology cannot analyze and predict the reservoir conditions well when the existing conventional clastic rock reservoir exploration technology is actually applied in the exploration of igneous rock reservoirs, and the obtained results are different from the actual reservoir conditions. Larger, which brings great inconvenience to the exploration and actual construction of igneous oil and gas reservoirs, and also reduces the success rate of exploration

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