QUANTITATIVE RESERVOIR SEDIMENTOLOGY AS AN IMPORTANT WAY TO OBTAIN GEOLOGICAL INFORMATIN FOR RESERVOIR MODEL ESTABLISHMENT：A CASE STUDY ON THE OUTCROP OF YOUSHASHAN IN QINGHAI PROVINCE

Taking the study on the outcrop of Youshashan in Qinghai Province for example, this paper expounds from five aspects in different level that Quantitative Reservoir Sedimentology is an important way to obtain geological information for reservoir model establishment: (1) the sedimentary system and microfacies analyses are the bases for understanding the macrofeature of reservoirs; (2)the size, geometry, orientation and internal anisotropism of sand body are known by sand body measurement; (3)the connexion and area ratio of sand body can be determined by mosaic photoes combined with close columnar sections; (4) the analyses on the development stage of each type of sand body and its lithology provide bases for reservoir evaluation; and (5) the study of diagenesis and pore structure reveals the microanisotropism of reservoirs.