八面河油田面4-14区沙四段1砂组储层认识及潜力评价

Reservoir Recognition and Development Potential of 1st Sand Group of Sha-4 Member of Mian 4-14 in Bamianhe Oilfield

八面河油田面4-14区沙四段1砂组含油面积大、储量多,单井产量普遍较低,储量动用差。为改善开发效果,开展储层研究、储量计算、区带潜力评价。通过储层"四性"关系研究和砂层对比,确定储层展布、油层厚度、孔隙度、含油饱和度分布规律;结合生产动态,圈定有利区带;结合井(组)注水、热采试验分析,提出提高单井和区块产能的有效方法。

Although 1st sand group has a large oil -bearing area with a large amount of oil reserves ,its per-well production is low and its reserve utilization is poor .This paper carries out reservoir research ,calcula‐tion of reserves and potential evaluation in the zone with the purpose of improving its development .On the basis of the research of four reservoir properties and comparison of sand layers ,distribution rules of reser‐voir spread ,its thickness ,its porosity and its oil saturation are determined .Combined with production per‐formance ,favorable zones are identified and then effective way of increasing the capacity of both per -well production and area production is presented in light of test analysis of well or well group water injection and thermal recovery .