自来屯油田储层含油性测井综合评价

Oil-bearing logging comprehensive evaluation of the reservoir in the Zilaitun oil-field,Hebei,China

河北沧县自来屯油田储层主要为细砂岩、粉细砂岩,粒度细,泥质含量高,以阿尔奇公式为基础的电阻率测井解释结果与储层实际含油性差别较大。作者以岩心资料、试油试采资料为基础,运用回归分析方法,建立了储层含油性与测井参数之间的统计关系,作为测井解释综合评价储层含油性的解释模型,取得了符合该区储层含油性情况的实际结果。

The reservoir of the Zilaitun oil-field is mainly composed of fine sandstone and siltstone and characterized by small grain size and high shale content. The interpreted result of the resistivity logging based on Arehie＇s formula is different from the practical oil-bearing quality. On the basis of the core information and tested well and producing test, using regression analysis, this paper establishes a statistical relationship between reservoir oil-bearing quality and log parameters. Taking this relationship as reservoir oil-bearing interpretation model of logging interpretation comprehensive evaluation, the results fitted to the regional oil-bearing in practice have been obtained.