摘要
以岩心观察、薄片鉴定、X-衍射分析为手段,依据岩石构造特征、矿物组成的不同,将罗家地区沙三下亚段泥页岩段划分为4种主要岩相:纹层状泥质灰岩相、层状泥质灰岩相、层状灰质泥岩相和层状含泥质灰岩相,其中纹层状泥质灰岩相为研究区最有利于页岩油气富集的岩相。基于测井响应差异分析,探讨了利用成像测井及元素俘获测井识别层理及计算矿物组分的方法,构建了不同岩相的测井识别模式,为下步泥页岩勘探目标的选取工作提供指导。
To find the rich hydrocarbon zone with good compressibility is the goal of shale oil and gas exploration. Different lithofacies have different source rocks and reservoir space types, thereby affecting its reservoir property and oil-bearing possibility. Therefore it is of great significance for unconventional oil-gas reservoir exploration to study the shale lithofacies characteristics and its identification method. According to the different structural characteristics and mineral composition, the Sha3 shale lithofacies are divided into four types based on core and flake observation and X-ray diffraction analysis in Luojia area. There are laminated argillaceous limestone facies, laminated shaly limestone facies, layered clay-bearing limestone facies and laminated argillaceous limestone facies, in which the laminated argillaceous limestone facies is the most rich shale oil-bearing lithofacies. Based on the analysis of logging responses, we studied the method to identify the rock bedding and calculate the mineral component by using FMI logging and ECS logging data. Different lithofacies recognition modes are constructed to provide instruction for selecting the shale exploration zones.
出处
《测井技术》
CAS
CSCD
北大核心
2013年第4期426-431,共6页
Well Logging Technology
基金
中石化页岩油气资源评价及选区专项子课题"胜利油田东部探区页岩油气资源评价及选区研究"(编号:YYYQ-ZP-02)
中石化科研攻关项目"济阳坳陷页岩油富集条件与有利区预测"(编号:P12062)
关键词
岩石物理
页岩
岩相
纹层
测井响应
综合评价
罗家地区
petrophysics, shale, lithofacies, lamina, logging response, synthetical evaluation, Luojia area
