【摘要】 塔河地区二叠系发生过多次火山喷发,火山岩广泛发育,经过多次构造演化可能形成油气聚集的有利圈闭。由于火成岩岩性成分复杂,不同地区不同时期形成的火成岩岩性差异大,岩性不均一性强,分布范围广泛而散乱,厚度变化大,在地震剖面上反应不明显等等,造成火成岩识别困难。本文综合多口井的资料,利用交会图和测井曲线对火成岩岩性进行了识别研究,总结了本地区火成岩的岩性特征,取得了较好的认识。更多还原

【Abstract】 The volcano broke up many times at Permian system in Tahe area.Volcanic rock is widely distributed in this area.Through many times’ structural evolution the good entrapment of hydrocarbon accumulation may be formed.Because igneous rock lithology element is complex,the difference of lithology is quite big in different periods and in different areas and it is difficult to identify igneous rock lithology.This paper studies the recognition of the igneous rock lithology with cross-plot and logging response and sums up the characteristics of the igneous rock lithology in this area.更多还原