HYDROCARBON ACCUMULATION MODELS IN GULF OF MEXICO BASIN AND MAIN CONTROLLING FACTORS
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摘要: 墨西哥湾盆地是世界上油气最为富集的区域之一,研究其成藏特点有着重要意义。为了研究墨西哥湾盆地的成藏模式及主控因素,对现有的研究成果进行整理和分析,表明:墨西哥湾盆地成藏模式可分为中生界礁相油气藏、新生界断背斜三角洲油气藏以及推覆油气藏3种,而控制墨西哥湾盆地油气成藏的因素也多种多样,烃源岩分布、储盖层组合、沉积层和盐岩等都对油气成藏有重要控制作用。Abstract: As one of the richest provinces of oil and gas accumulation in the world, the Gulf of Mexico Basin has attracted great attention from international companies for decades. Devotes have been made by various petroleum geologists to study the accumulation characteristics. This paper studies hydrocarbon accumulation models in Gulf of Mexico Basin and its main controlling factors based on the large number of previous research in the basin. The study shows that the hydrocarbon accumulations in Gulf of Mexico Basin can be grouped into three models: Mesozoic reef facies accumulation, Cenozoic snap-anticline delta accumulation, and overturned accumulation. The hydrocarbon accumulation in the Gulf of Mexico Basin depends upon various factors, such as the distribution of hydrocarbon source rocks, the combination of reservoir and cap rocks, and deposits and salt rock, are all very important to hydrocarbon accumulation in Gulf of Mexico Basin.
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