大庆石油地质与开发2011，Vol.30Issue(4)：59-62,4.DOI:10.3969/J.ISSN.1000-3754.2011.04.014
低渗透油藏含水与可采储量采出程度关系
RELATION BETWEEN WATER CUT AND RECOVERY PERCENT OF RECOVERABLE RESERVES IN LOW-PERMEABILITY RESERVOIRS
摘要
Abstract
Based on the development data from35 low-permeability reservoirs in Daqing peripheral oilfields, the intercept a, slope b and recoverable reserves NR of water flooding curves for different blocks are obtained by using the T-shaped water flooding curve, therefore the relational expression between water cut and recovery percent of recoverable reserves of low-permeability reservoirs in Daqing peripheral oilfields is derived and established, and the theoretical curve for water cut variation in low-permeability reservoir development is drawn. The shape of the theoretical curve is a concave S-shaped curve, which indicates that the water cut increases slowly in the early period of oilfield development, and rapidly in the later period. Additionally, after measured and calculated by the relational expression , nearly 50% of the recoverable reserves could be recovered before the water cut reaches 20% , so it is proved that the low water cut stage is the major stage of the low-permeability reservoir development.关键词
大庆外围/低渗透/含水率/可采储量采出程度Key words
periphery of Daqing / low-permeability/ water cut/ recovery percent of recoverable reserves分类
能源科技引用本文复制引用
邹存友,白喜俊,王燕灵,陈新彬,周锡生..低渗透油藏含水与可采储量采出程度关系[J].大庆石油地质与开发,2011,30(4):59-62,4.基金项目
国家油气重大专项43项目01课题(2008ZX05043-001)资助. （2008ZX05043-001）
