西安科技大学学报2017，Vol.37Issue(2)：194-199,6.DOI:10.13800/j.cnki.xakjdxxb.2017.0208
苏里格气田苏东南地区盒8段储层孔隙结构研究
Reservoir pore structure in He 8 formation of the southeastern Sulige Gasfield
摘要
Abstract
Study the reservoir pore types and pore structure of He 8 reservoir in the southeast area of Sulige from qualitative to quantitative perspective by conventional sandstone thin section,cast thin section,scanning electron microscopy,conventional mercury injection and data of core analysis.According to the relative content of dissolution pores and intergranular pores,the pore combination type is divided into four categories:intergranular pore,dissolution pore-intergranular pore,intergranular pore-dissolution pore,and dissolution pore.And analyze the characteristics of pore structure with four kinds of pore type.The research results show that:Intergranular pore throat types are mainly micro throat and micro fine throat,and it also has good sorting of the pore throat parameters and higher mercury withdrawal efficiency;In addition to the micro fine throat and micro throat,dissolution pore-intergranular pore,intergranular pore-dissolution pore and dissolution pore also develop some fine throat and medium throat,and fine throat and medium throat ratio gradually increased with increasing proportion of dissolution pore content;The sorting coefficient and mercury withdrawal efficiency of solution pore type is lower than the intergranular pore,Mixed type of pore combination formed by dissolution pores and intergranular pores is of lower sorting coefficient and worse mercury ejection efficiency than the single pore type.关键词
苏东南地区/盒8段/孔隙结构/喉道Key words
Southeast area of Sulige/He 8 formation/pore structure/throat分类
能源科技引用本文复制引用
高洁,孙卫,段瑞芳..苏里格气田苏东南地区盒8段储层孔隙结构研究[J].西安科技大学学报,2017,37(2):194-199,6.基金项目
陕西省教育厅科研项目(15JK1063) （15JK1063）
