山西南部晚古生代煤的煤化作用及其控气特征

COALIFICATION OF THE UPPER PALEOZOIC COAL AND ITSCONTROL TO THE GENERATION AND PRESERVATIONOF COALBED METHANE IN THE SOUTHERN SHANXI

通过对区内晚古生代煤层的埋藏史、古地热史和生烃演化史的研究，认为煤层埋藏史类型以及发生于燕山运动中期的第２次生气作用是控制煤层气生成保存条件的重要地质因素，进而指出区内阳城—沁水、沁源—沁县和安泽等地区可能最具有煤层气勘探前景．

Based on the study of the history of the burial coalification and the hydrocarbon generation of the Upper Paleozoic coals in the southern Shanxi,it is considered that the type of seam burial history and the secondary gas generation in the Middle Yanshan Movement are important geological factors which controlled the generation and preservation of coalbed methane in the area.It is also pointed out that the most potential areas for exploration and development of coalbed methane are Yangcheng Qinshui,Qinyuan Qinxian and Anze of the areas studied.