商河油田商741井区沙三中火成岩成藏机理研究
INNER MONGULIA PETROCHEMICAL INDUSTRY（2010）
Abstract
商741井区沙三中火成岩形成于沙三段沉积晚期,此时中央隆起带的主控断层-临邑断裂活动强度加剧,导致了深部岩浆沿断层从该地区的构造应力集中地区上涌,侵入到沙三段中期所形成的暗色泥岩中,形成超浅层侵入相火成岩.由于岩浆的温度极高,而围岩的温度低,火成岩内发育原生气孔、裂缝、次生构造缝裂、溶孔溶洞等,烃源岩生成的油气运移到这些孔隙中,形成了沙三中火成岩油藏.
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