长春外围地区煤成气研究

STUDY ON COAL RELATED GAS IN AREA ROUND CHANGCHUN

在综合研究长春外围地区地层和构造特点的基础上，阐明了煤成气生气源岩，主要是沙河子组中的暗色泥岩及煤层和营城组的下部含煤岩段；主要储气层为泉头组三段砂岩；盖层主要是青山口组中的泥岩；生储盖及圈闭条件较好的有希望区为小合隆区、范家屯区。

On the basic of comprehensive reserch on the strata and Structural features inthe area round Chang Chun,this paper exponds that gas source rocks in this area are dare muds-root and coal seam of Sha he zi formation and the lower coal-bearing strata of Yingcherig forma-tion;the main gas bearing reserviors are three Sand stones of Quan formation, the cover stra-tum mainly is mudstone of Qing Shan-kou formation,and hopeful areas of good gas forming,bearing,coveringtqnd trap condition are Xiao he long and Fanjiatun area.