摘要
多矿物模型分析基于测井响应分析原理,采用最优化解释方法处理砂泥岩地层和复杂岩性地层的测井资料,可分辨出单井剖面中地层矿物类别,进行矿物体积含量、孔隙度、饱和度等测井参数解释.该方法弥补了全井段取心分析费用高的缺陷,可为计算地层参数提供可靠的岩性模型.应用该模型在洛带气田进行了实例计算,获得连续的地层矿物含量和各种储层参数,与传统的SAND2模型测井解释结果和岩心分析结果对比后证实,多矿物模型分析优于传统测井解释模型.
The kernel of Multi-Mineral log interpretation model is to establish the incoherence function between the actual wire line logging information and theoretical log response of mineral, which can be solved by optimum method, to analyze mineral composition, and calculate mineral percentage, porosity and saturation. Its advantage over expensive core analysis lies in the ability to get continuous lithofucies conforming to most of the available geological description. After the principle of this algorithm is stated, an example in LuoDal Gas Field is demonstrated and compared with that of traditional SAND2 model, for the purpose of showing its conformity to core measurements, and advantage over conventional logging method.
出处
《新疆地质》
CAS
CSCD
2006年第4期441-446,共6页
Xinjiang Geology
基金
国家财政部矿产资源保护项目<川西坳陷洛带马井气田压裂改造技术研究>的子项目<洛带气田气藏地质特征研究>(KB2000-07-02)资助
关键词
多矿物模型
测井解释
最优化计算
Multi-Mineral Model
Log Interpretation
Optimization Calculation
