APPLICATION OF THE PRASS 1 EVALUATION SYSTEM OFOIL AND GAS RESOURCES TO THE QINTONG DEPRESSION IN NORTH JIANGSU PROVINCE

The PRASS 1 evaluation system of oil and gas resources is noted for its easiness,fastness and reliableness.Its application in the Lower Tertiary play of the Qintong Depression in North Jiangsu province indicates that the evaluation results(the distribtitive scale of oil and gas pools)accord with the law of lognormal distribution,and are basically consistent with practical exploration effects and the geologists'understanding of the geological regularity of this area.