Abstract: PetroChina’s new generation of logging software – CIFLog – has experienced a rapid development since it was released in 2011. It was upgraded from processing and interpretation of a single well to a multiple of wells and horizontal wells. CIFLog has become the key instrument of the logging industry, with a high installed quantity, a large number of annually processed wells and the independent intellectual property right for all of its key technologies. As a scientific method and experiment equipment, this software used the quantitative calculation method of fractural saturation, which was baed on the constraints from both the downhole sealed coring saturation value and the best special solution of “resistivity index-saturation”. It effectively solved the world-class bottleneck for calculating the oil and gas saturation of fractured reservoirs and calculating the low porosity of tight reservoirs. As oil and gas exploration is unfolding into the deep-layer and unconventional fields, China’s logging science and technology aims at the goal of “development of one subject, construction of two main entities and manufacture of equipment in two families”.

摘要： 中国石油新一代测井软件CIFLog自2011年发布以来，从最初的单井处理解释到多井和水平井的多级跨越，现已成长为装机量大、年处理井数多、全部关键核心技术具有自主知识产权的测井行业重器。软件原创性应用了井下密闭取心饱和度值（点）与“电阻增大率—饱和度”通解方程最优特解（线）为约束的裂缝含气饱和度定量计算科学方法，以及基于岩石矿物组分最优化处理的高精度孔隙度计算方法，有效解决了裂缝储层油气饱和度计算和致密储层低孔隙度计算等世界性难题。随着油气勘探向深层、非常规推进，我国测井科技正朝着“发展一个学科、构建两大实体、研制两套装备”目标发展。

关键词: CIFLog测井软件, 饱和度计算, 孔隙度计算, 发展方向