辽河油田欢127块兴隆台油层剩余油分布研究

Remaining oil distribution of Xinglongtai reservoir for Block Huan 127 in Liaohe Oilfield

王福林 刘义坤 任芳祥 尹万泉

大庆石油学院提高油气采收率教育部重点实验室，黑龙江 大庆 163318 辽河油田分公司，辽宁 盘锦 124010

辽河油田欢127块兴隆台油层是典型的正常压力系统高密度、高黏度稠油油藏。该块油田生产能力低，地层水水侵严重、严重影响开发效果，井况逐年变差，各种措施效果逐年变差。为了认清剩余油分布规律，选择了欢127块东、西两块具有代表性的典型井区，应用数值模拟方法、虚拟井的处理方法、典型井组精细研究和多井组综合研究方法，建立了各井组和全区小层砂体剩余油饱和度等值图，定性、定量地分析了平面、纵向剩余油分布规律，有效地深化了对剩余油的认识，为断块稠油油藏剩余油分布研究提供了技术支持。

Block Huan 127 of Liaohe Oilfield is a typical heavy oil reservoir which is of high density and viscosity in normal pressure
system. Block Huan 127 is selected as a research aim in this paper. The block has a low production capacity. The exploitation is
severely influenced because of the formation water invaded. The well situation and the effect of various measures are getting bad
year by year. In order to define the remaining oil distribution rules, the two typical well fields, which have representative, are chosen
in the eastern and western parts of Block Huan 127. The numerical simulation method, suppositional well treatment method, the
methods of careful research of typical well group and synthesis research of multiple well groups are used in the block. The residual
oil saturation chorisograms of different well groups and the subzone sand bodies of entire block are mapped. The qualitative and
quantity analyses of residual oil distribution rule are conducted on plane and vertical direction. The knowledge of residual oil is
improved, which offers a technical support for the study of residual oil distribution of heavy oil reservoirs.