黔南下石炭统打屋坝组页岩气储层物性特征及控制因素

安亚运; 符宏斌; 陈厚国; 贺永忠; 卢树藩; 盘应娟

安亚运,符宏斌,陈厚国,贺永忠,卢树藩,盘应娟.黔南下石炭统打屋坝组页岩气储层物性特征及控制因素[J].贵州地质,2015,32(3):181-189

黔南下石炭统打屋坝组页岩气储层物性特征及控制因素

Reservoir Property and Control Factors of Shale Gas of Dawuba Formation，Lower Carboniferous in South Guizhou——with Changye No.1 reservior as an Example

DOI：

中文关键词: 长页1井打屋坝组页岩气储层物性特征控制因素

英文关键词:Changye No. 1 Dawuba formation Shale gas Reservoir Property feature Controlling factors

基金项目:贵州省黔南地区页岩气资源调查评价（编号：GZSYYQZYDC2012-003）

作者	单位
安亚运	贵州省地质调查院，贵州贵阳550005
符宏斌	贵州省地质调查院，贵州贵阳550005
陈厚国	贵州省地质调查院，贵州贵阳550005
贺永忠	贵州省地质调查院，贵州贵阳550005
卢树藩	贵州省地质调查院，贵州贵阳550005
盘应娟	贵州省地质调查院，贵州贵阳550005

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中文摘要:

黔南下石炭统打屋坝组页岩气储层孔隙主要包括残余原生粒间孔、晶间孔、有机质孔、粘土矿物间微孔、溶蚀孔和裂缝等类型。以细孔喉、分选差，细歪度的微孔微喉型孔隙结构为特征，具有比表面积大、孔容中等，孔隙度低而渗透率低的特点。打屋坝组泥（页）岩总有机碳含量为082%316%，有机质镜质体反射率为213% 327%，粘土矿物含量平均434%。有机质丰度、粘土矿物含量、成岩演化和构造作用是控制打屋坝组页岩气储层的主要因素。

英文摘要:

In Dawuba formation of Lower Carboniferous in south Guizhou, the pores of shale gas reservoir include follows primary intergranular pore, geode, Organic matter pore, clay mineral micropore, corrosion hole and fracture. The micropore structure has the characteristics of thin pore throat, bad separation and thin flexure, its features include big surface, middle pore volume, low porosity and low permeability. The total organic carbon content of mud rock (shale) is 0.82% to 3.16%, the vitirnite reflectivity of organic matter is 213% to 327%, the average content of clay mineral is 43.4%. The organic abundance, clay mineral content, diagenetic evolution and tectonism are the main factors which control the shale gas reservoir of Dawuba formation.

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