摘要
CH2断块进入高含水开发期,存在平面优势通道发育、纵向单层突进等问题,导致优势通道上部分油井水淹、含水上升速度快等,为此对CH2断块开展优势通道识别研究。采用模糊综合评判法,通过含水指数特征研究,确定该断块的优势通道主要为孔道型;动态监测资料和示踪剂测试结果表明,平面上优势通道集中在油藏中部,纵向上不同层位优势通道存在的位置也不同。根据不同方法计算优势通道孔喉半径范围在6.0～12.5μm之间。
After entering high water cut development stage,CH2 block met the problems of developed predominant channel on the plane and vertical monolayer dart,which would lead to water flooded of some oil wells and fast rising of water cut.Therefore,the predominant channel recognition technology of E1f1 reservoir in CH2 block has been carried out.By using fuzzy comprehensive evaluation method,through moisture index characteristics study,the predominant channel is mainly pore type.According to different methods,the pore throat radius range of the predominant channel is calculated to be between 6.0~12.5μm.
出处
《石油地质与工程》
CAS
2014年第5期146-149,158,共4页
Petroleum Geology and Engineering
关键词
CH2断块
优势通道
含水指数
孔喉半径
CH2 block
predominant channel
moisture index
pore throat radius
