The primary types of reservoir space include hole, fissure and cave, yet the fissure is filled heavily, and the late unfilled structural fracture is favorable for hydrocarbon accumulation.
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- 油气的主要储集类型有孔隙、裂缝以及洞穴,其中裂缝充填严重,晚期未充填的构造缝对油气聚集有利;