海相油气地质2016，Vol.21Issue(4)：67-72,6.DOI:10.3969/j.issn.1672-9854.2016.04.008
计算页岩气储层矿物成分含量的新方法：黏土视骨架密度法--以涪陵页岩气田为例
A Method of Calculating Percent of Mineral Composition in Gas Reservoir by Apparent Skeleton Density of Clays:A Case of Lower Silurian Longmaxi Gas-bearing Shale Reservoir in Fuling Gas Field, Sichuan Basin
摘要
Abstract
Shale gas proven reserve declaration in Fu ling Gas Field needs to calculate mineral percent with relatively high accuracy. According to core analysis, X- ray diffraction experiments and digital core technology, a simplified volume model is setup, in which rock skeleton is similarly composed of siliceous, carbonate and clay minerals. A new parameter of "apparent skeleton density of clay" is introduced and thus a new formula is setup to calculate percent of minerals in Lower Silurian Longmaxi gas-bearing shale reservoir. According to data of core analysis including X- ray diffraction, porosity and TOC, a series of charts are setup. With common log data, TOC can be calculated firstly, then the “apparent skeleton density of clay” can be obtained. Furtherly, the percent of major minerals suitable to the simplified model can be calculated with the formula. It is proved that this new logging calculation method is reasonable and useful with high accuracy and low cost.关键词
涪陵气田/页岩气储层/矿物成分/含量测定Key words
Shale reservoir/Gas reservoir/Mineral composition/Content calculation/Fuling Gas Field分类
能源科技引用本文复制引用
王燕,冯明刚,严伟,魏祥峰,刘帅..计算页岩气储层矿物成分含量的新方法：黏土视骨架密度法--以涪陵页岩气田为例[J].海相油气地质,2016,21(4):67-72,6.基金项目
本文受国家科技重大专项“上扬子及滇黔桂区页岩气资源调查评价与选区”(编号14B12XQ151001)资助 （编号14B12XQ151001）
