摘要
渤海湾盆地的诸多油田中,储量评价阶段的渗透率预测往往直接依靠孔隙度—渗透率二者之间的回归关系,或将粒度中值、孔隙度等参数进行多元回归,这样得到的渗透率不够精确,给后期的开发生产带来了一定的影响。从渤海地区的实际情况着手,根据PICKETT交会图划分流动单元,结合岩心分析数据,建立各流动单元渗透率计算模型,最终提出较为实用的渗透率计算方法。应用结果表明,该方法成功解决了渤海某油田渗透率计算的难题,也为今后类似油气田渗透率的精确解释提供了思路。
In reservoir evaluation, permeability is predicted by the relation of porosity and permeability, or the multiple regression of median grain size, porosity and other parameters in Bohai Bay basin oilfields, so, the permeability calculated is not precise enough which affects oilfield production allocation and later development. Based on the actual situation in Bohai region, we divide reservoir flow units according to PICKETT crossplot, and establish permeability calculation models of each flow unit combining core analysis data. The more actual permeability calculation method is proposed. The application results show that the permeability in the Bohai Bay oil wells is successfully calculated by the method, which also provides ideas to accurate calculation of permeability in the similar oil and gas fields.
出处
《测井技术》
CAS
CSCD
北大核心
2013年第4期385-388,共4页
Well Logging Technology
关键词
测井解释
油气层
渗透率
交会图
流动单元
log interpretation, hydrocarbon reservoir, permeability, crossplot, flow unit
