【摘要】 第四系生物气勘探是世界天然气勘探领域的难点。柴达木盆地三湖地区第四系地层弱成岩、砂泥岩薄互层及地层普遍含生物气的特殊地质特征,加上地震资料受多种异常的影响,如何开展三湖地区生物气藏的地震含气检测,一直是该地区天然气勘探的一个难点。在分析三湖地区特殊地质及地震异常特征的基础上,经过分析研究,认为利用能量加权瞬时频率属性可以预测三湖地区的生物气藏,并经过钻探得到了证实,为该地区生物气藏的预测提供了一种较为实用的方法。更多还原

【Abstract】 Quaternary biogas exploarion is a global question.Since there are special geological characteristics of weak diagenesis,thin sand and mud interbed,and biogas show,as well as abnormal seismic data,how to detect Quaternary biogas is difficult in Sanhu region,Qaidam basin.Based on integration of special geology and abnormal seismic features,energy weighted instantaneous frequency is a valid method to predict lithologic biogas pool in Sanhu area.This valid method proved by drilled well would make a significant contribution to predict biogas pool in Sanhu area.更多还原