贵州遵义地区安场向斜“四层楼”页岩油气成藏模式研究

发布时间：2018-08-12 11:54

【摘要】：中国南方地区从震旦纪到古近纪发育多套烃源岩,由于经历多期构造运动,油气保存条件欠佳。60多年来,除四川、江汉、苏北等盆地外,盆外复杂构造区油气调查始终未获重大发现。文章通过对野外地质调查、地球物理勘查和系统的油气成藏条件研究,认为黔北安场向斜五峰—龙马溪组富有机质页岩发育、热演化程度适中,石牛栏组储集性能较好,向斜翼部逆断层封挡,具备良好的页岩气、油气富集成藏条件。在向斜西翼部署实施的安页1井,在栖霞组、石牛栏组、五峰—龙马溪组和宝塔组获得"四层楼"式油气显示。其中,石牛栏组获得日产超过10×104m3高产工业气流,开辟了南方油气勘查的新区、新层系和新类型。安页1井的突破,证实了黔北—渝东南盆外复杂构造区具有常规、非常规油气同生共存的成藏条件,对邻区广泛发育的残留向斜油气勘探具有重要的指导意义。
[Abstract]:There are many sets of source rocks developed from Sinian to Paleogene in southern China. Due to the multi-stage tectonic movement, the oil and gas preservation conditions are not good. For more than 60 years, no significant discovery has been made in the oil and gas investigation in the complicated tectonic areas outside the basin except Sichuan, Jianghan and Northern Jiangsu basins. Reservoir conditions study shows that the Wufeng-Longmaxi Formation in Anchang Syncline in northern Guizhou is rich in organic shale with moderate thermal evolution, and the Shiniulan Formation has better reservoir performance, reverse fault sealing in syncline wing, good shale gas and hydrocarbon accumulation conditions. The Xihe Formation and Baota Formation have obtained "four-storey-floor" oil and gas display. The Shiniulan Formation has obtained high-yield industrial gas flow with a daily production of more than 10 104m3, which opens up new areas, new strata and new types for oil and gas exploration in the south of China. It has important guiding significance for oil and gas exploration of residual syncline widely developed in adjacent area.
【作者单位】：中国地质调局油气资源调查中心;中国地质调查局非常规油气地质重点实验室;
【基金】：中国地质调查局南方页岩气基础地质调查(12120115004601) 全国油气战略选区调查评价工程项目(1211302108020) 重大科技专项页岩气资源评价方法与勘查技术攻关(2016ZX05034)联合资助~~
【分类号】：P618.13

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