摘要
长庆油田苏里格气田东区盒8、山1、山2段的致密砂岩储层具有典型的低孔一低渗及多层系含气的特征。对具有不同产能砂岩的岩性、物性、孔隙结构和孔隙微观特征等方面进行分析，通过气层和干层孔隙微观特征对比，在系统研究储层微观特征的基础上，用生产资料法研究了渗透率与产能之间的关系，并用产能模拟法进行验证，最终确定出有效储层的孔隙度和渗透率下限值。气层和干层的孔隙结构类型、毛细管压力曲线特征及成岩特征等因素导致储层的含气性不同。
The tight sandstone reservoirs in Member He8, Shanl and Shan2 of Changqing Oilfield are character- ized by the typical low-porosity and low-permeability multiple series of the strata. The aspects of the lithology, physical properties, pore structures, pore micro-features and so on are analyzed. Through the contrast of the micro- characteristics in the pores of both gas reservoirs and dry layer and moreover on the basis of the systematical studies on the micro-features of the reservoirs, the relation between the permeabilities and productivity is researched by production data method. And furthermore the above method is tested by productivity simulating approach, finally the lower limits of the porosity and permeability for the effective reservoirs are determined. The factors of the pore structural type, capillary pressure curve characteristics, digenetic features and so forth result in the gas-bearing differences of the reservoirs.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2012年第6期41-47,共7页
Petroleum Geology & Oilfield Development in Daqing
基金
中国石油天然气股份有限公司重大科技专项“致密气藏开发重大工程技术研究”项目（2010E-23）.
关键词
苏里格气田
多层系气藏
砂岩储层
微观特征
物性下限
产能
Sulige Gasfield
multilayer gas reservoir
sandstone reservoir
microscopic feature
lower limit of thephysical property I productivity
