The Accurate Description Of The Reservoir In WenJisang Gas Pool

With a precise description of WenJisang condensate gas pool, the thesis confirms short- and long-term base level cycles based on the references of outcrop, core, log and seismic data, establishes formation contrast framework of reservoir, classifies the layer correlation and establishes the types of layer's sedimentary micro-facies combined with sedimentary environments and facies combinaton. With the analysis of property of layer and dynamic data , guided by the theory of regional geological structure, the thesis reclassifies faultage on the basis of research results. Meanwhile, it also researches into four-characteristic relation and homogenous of the reservoir with the application of dynamic data, analysis data and log data. Based on these, with the combination of qualitative and quantitative study, static and dynamic study and macro- and micro-study, clustering analysis and discrimination analysis are applied in the study. The all sandstones in the studied areas has be classified with the means of clustering analysis first, and the result of analysis clustering has be verified with the discrimination means, according to the credibility of the studies the regression model should be building with the regression analysis to make flow-unit division of sandstones of layers and recalculate the parameters like width, gas-bearing area and gas saturation. Thereby the reserves of Qiketai,Sanjianfang and Xishanyao of WenJisang condensate gas pool is recalculated. A three-dimensional geology model is established with the facilitation of computers. The results shows that the division with the application of the high-definition stratigraphy has the high precision and strong applicability to the certainty of sedimentary micro-facies, flow unites division, sandstone plane contour, geology model building and reservoir calculation.