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四川盆地川西拗陷陆相致密碎屑岩领域油、气储层具有致密、低孔渗、薄层交互、多层叠置和强非均质性的特点。本文以多井约束地震地层反演技术配套和完善了川西致密非均质气藏描述技术 ;以高精度三维地震资料为主线 ,结合钻井、地质、测井、测试等资料 ,深入研究分析含油、气的地震响应特征 ,在确定气藏分布范围、描述空间几何形态、反演储集参数、研究沉积相和储层非均质性以及预测高产富集带等方面取得了重大突破。
The oil and gas reservoirs in the continental detrital clastic rocks in the western Sichuan depression of the Sichuan Basin have the characteristics of compact, low porosity and permeability, thin-layer interaction, multi-layer stacking and strong heterogeneity. In this paper, multi-well constrained seismic stratigraphic inversion technique is used to complete and improve the description of dense heterogeneous gas reservoirs in western Sichuan. Based on the high-precision 3D seismic data, combined with drilling, geology, well logging and testing data, Gas seismic response characteristics have made significant breakthroughs in determining the distribution range of gas reservoirs, describing the spatial geometry, retrieving reservoir parameters, studying sedimentary facies and reservoir heterogeneities, and predicting high-yield enrichment zones.