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王光奇, 漆家福, 岳云福 (2003) 歧口凹陷及周缘新生代构造的成因和演化. 地质科学, 2, 230-240.

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  • 标题: 歧口凹陷古近系沉降速率与古地貌对地层厚度的影响Sedimentology Rate and Palaeogeography Impact on Layer Thickness in Qikou Sag of Paleogene

    作者: 陈宪保

    关键字: 歧口凹陷, 古近纪, 沉积速率, 古地貌, 岩性油气藏Qikou Sag, Paleogene, Sedimentology Rate, Palaeogeography, Lithologic Hydrocarbon Accumulations

    期刊名称: 《Advances in Geosciences》, Vol.5 No.2, 2015-04-27

    摘要: 岐口凹陷地质结构复杂,油气勘探工作已经处于中后期,由原来寻找构造圈闭油气藏转变为寻找隐形岩性油气藏阶段,单一影响构造单元研究已经满足不了油气勘探工作的需要。岩性油气藏的研究工作有必要在层序地层体系控制下结合沉积速率、古地貌等因素耦合起来开展系统、综合地质研究,明晰各种因素对沉积地层形成发育影响,才能更有效地指导油气勘探工作,获得较好效果。结合岐口凹陷古近纪层序地层格架下总结出的三幕构造运动,来说明沉积速率、古地貌单元、断层对地层发育的控制影响作用。The geological framework is complicated in Qikou sag, and its oil-gas exploration research is in the middle and later periods. Geologist looked for structural trap accumulations previously and they are looking for lithologic hydrocarbon accumulations at present. The study of single structural unit can not satisfy for oil-gas exploration research’s need. Lithologic hydrocarbon accumulations research need to contect sedimentology rate, palaeogeography and other factors under sequence layer system to study geological research systematically and synthetically. We can guide oil-gas exploration research more effectively and achieve approving effects by understanding all factors affecting sedimentology layer form. Through three episodic movements summarized by connecting Paleogene of Qikou sag sequence system, we can analyze sedimentology rate, palaeo- geography unit and faults influencing on layer development