摘要
对萨中油田油水同层段密闭取心岩样的含水饱和度进行分析。结果表明:油水同层段的含水饱和度随海拔深度增加而增加;在分流方程式基础上,得到不同海拔深度和产水率变化关系曲线;利用措施临界产油量模型得到不同产水率下的补孔临界产油量;结合数值模拟方法得到油水同层段的合理补孔海拔深度界限为-1065.0m。该研究为萨中油田增储挖潜提供了方向,为同类油田油水同层开发提供了理论指导。
Water saturation of the sealed coring samples from oil-water isostrate layer in Sazhong oilfield has been analyzed. The result shows that water saturation increases with depth. The relation of depth vs. water cut has been obtained based on fractional flow equation. Critical oil production of reperforating has been derived for different water cuts by using a model of critical production by stimulation. The reasonable depth limit of reperforating for oil-water isostrate reservoir is -1065.0 m according to numerical simulation. This study provides orientation for increasing reserves and potential in Sazhong oilfield and theoretical guidance for developing similar oil-water isostrate reservoirs.
出处
《特种油气藏》
CAS
CSCD
2010年第2期63-65,共3页
Special Oil & Gas Reservoirs
基金
国家自然科学基金项目"低渗透油层提高驱油效率的机理研究"(50634020)部分研究内容
关键词
油水同层
开发界限
数值模拟
萨中油田
oil-water isostrate layer
development limit
numerical simulation
Sazhong oilfield
