Exact identification approach to volcanics formation fluid based on fuzzy probability theory
Wang Wen-guang · Zhongguo Shiyou Daxue xuebao. Ziran kexue ban · 2010
The interactivity and ambiguity of volcanic fluid were adequately considered. Based on fuzzy probability theory and log interpretation axiom,sampled data of volcanics were selected and cluster analyzed. A fuzzy probability function for fluid identification was established by using the conception of sum of squares of deviations. The probability density function and subordinate functions were established by using the theory of fuzzy mathematics and probability. And a mathematical model used for formation fluid identification in Songliao Basin by fuzzy probability was derived. The precision ratio of example identification is above 80%. The calculated results show that the approach is feasible and has popularization value.