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轮南地区奥陶系的油气资源非常丰富,但油气的分布十分复杂。通过对该区奥陶系石油地质特征、油气成藏特征及油气藏形成机理的研究,认为该区黑油主要来自中-上奥陶统油源岩,天然气则来自寒武系烃源岩的高温裂解。油藏的成藏期是在中新世吉迪克组沉积晚期-康村组沉积早期,气藏的成藏期是在上新世库车组沉积期。原油沿奥陶系顶面的不整合面向北运移,天然气则沿桑塔木和轮南断垒两组背冲式大逆断裂向上运移,在有利的圈闭中成藏。指出油气运移的几条有利路线,是今后油气勘探的方向
Ordovician in Lunnan area is rich in oil and gas resources, but the distribution of oil and gas is very complicated. Based on the study of Ordovician petroleum geology, hydrocarbon accumulation characteristics and reservoir formation mechanism in this area, it is concluded that the black oil mainly comes from the Middle-Upper Ordovician source rocks and the natural gas from the Cambrian source rocks Pyrolysis. The reservoir was deposited in the Early Sedimentary period of the Miocene Sedimentary Period of the Miocene Sedimentary Period in the Early Miocene Qidike Formation. The hydrocarbon accumulation period was during the deposition of the Upper Pleistocene Kuche Formation. Crude oil migrates northward along the unconformity of the top of the Ordovician. Natural gas migrates upward along the backstage-type thrust faults of the Santamu and Lunnan Faults and accumulates in favorable traps. Pointed out several favorable routes for oil and gas migration, is the future direction of oil and gas exploration