油燕沟潜山带中生界火山岩特征及含油气研究

CHARACTERISTICS OF MESOZOIC VOLCANICS IN THE BURIED HILLS OF YOUYANGOU AND THE STUDY OF ITS OIL BEARING FEATURE

应用岩石学、储层岩石学、有机地球化学等基础理论，对油燕沟潜山带火山岩岩化特征、储集性及含油性进行了研究，认为该火山岩为燕山期白垩纪产物，是以碱性岩系列为主的火山岩建造，具低渗微孔细喉型孔隙结构特征，及微裂隙—孔隙、微裂隙两种孔隙组合类型；同时，对原油组分、油源及含油产状进行了分析，探讨了火山岩油藏特征。为今后寻找该类火山岩油藏提供了重要资料。

Based on petrology,reservoir petrology,and organic geochemistry,this paper studies the lithified feature,reservoir feature and oil bearing feature of the volcanics in the buried hills of Youyangou.The results show that this kind of volcanics which was the product of Cretaceous during Yanshan period was mainly made up of volcanics of alkaline rock series;and has the features of low permeability ,microporosity and narrow throat, and its pore combination consists of microfissure pore and microfissure two types ;the paper also analyzes the crude oil composition ,oil source and oil bearing condition of the reservoir,and approaches the characters of volcanic rock reservoir.This paper presents important data for seeking this kind of volcanic rock reservoir in the future.