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中国南方从震旦纪到三叠纪8个地质时代海相地层厚度巨大,具有很大的生烃能力。然而除四川地区之外,至今油气勘探尚无重大突破。积十二年对南方5个地质时代海相地层基础地质研究及制图的经验,认为南方海相油气勘探久攻不下的原因是:(1)对整个南方还缺乏全面的、历史的、整体的和深刻的认识;(2)还不善于用什么方法或顺序去认识它。建议重视基础地质研究,并以中国南方二叠纪及三叠纪的岩相古地理研究和制图为例,提出基础地质→油气研究→生储盖条件→油气勘探的研究顺序,研究顺序不能倒置,也不要走“捷径”。
In the south of China, the marine strata during the eight geological epochs from Sinian to Triassic were of great thickness and high hydrocarbon generation capacity. However, in addition to the Sichuan region, so far there is no major breakthrough in oil and gas exploration. Over the past 12 years, we have studied the basic geology and mapping of five marine geological formations in the south for many reasons. The reasons for the long-standing invasion of the marine oil and gas exploration in the south are: (1) there is a lack of comprehensive, historical and holistic And profound understanding; (2) not good at what method or order to recognize it. It is suggested that emphasis should be put on basic geological research. Taking the research of lithofacies palaeogeography and mapping of the Permian and Triassic in southern China as an example, the order of research on basic geology → oil and gas → conditions for genesis and accumulation of caprock → oil and gas exploration is proposed. The research order can not be inverted , Do not take the “shortcut.”