Exploitation Potential Evaluation Of Saertu Reservoirs In Pubei Oilfield

Putaohua oilfield has been developed since 1979,the main exploitation reservoirs are Putaohua reservoirs,which has been developed for 30 years till now.But oil production in the old oil-producing area is declining, integral water content is still raising and oil reserve is deficient,so it is under high-pressure to maintain peak production of oilfield. We cry for potential-digging of expanding the borders and the layers for the sustainable development of oilfield.We found the sandstone is developed in some areas of Saertu reservoira above Putaohua reservoira of Pubei oilfield.Moreover,oil and gas show that early development had been carried out in adjacent areas,which indicates Pubei oilfield has the possibility of oil-impregnated, and is one orientation of potential-digging.This paper uses the standards of existing stratigraphic classification and reservoir identification based on the production well data of Pubei oilfield,integrates theory with practice,and creates standard wells and framework profiles, to create the standards of stratigraphic classification and reservoir identification and implement fine stratigraphic classification and reservoir identification. This paper studies the reservoir sedimentary environment and distribution characteristics to evaluate and predict exploitation potential based on layer isopach maps,sandstone contrast maps,horizontal distribution maps and the logging,coring and chemical analysis information.