Abstract: Themultimineralsmodel analysis of optimization explanation can study and evaluate complex hydrocarbon reservoir adopting a great of logging formation and many kinds of models.Compared with tradition logging interpretation, it can synthesize multidimensional information complex compound with all logging information, error and some zones geology experiences. Using
optimalmathematicsmethod and searching the optimal selection of themultidimensional information, which can solve stratum parameter. Applying this method inWu Erhe inefficient oil field Kelamayi group complex lithology and lower permeability clastic rock reservoirbed parameter interpretation, which had explained more than one hundred logging datum successfully, and had gained credibility stratum mineral ( lithology) section and reservoir parameter. Compared with testing for oil data and well logging data, which verified that itwas a newway in explaining the stratum lithology, the physical property parameter and the fluid property, the result is preferable.

Key words: multimineralsmode, l logging interpretation, optimizationmethod, stratum lithology, reservoir parameter