伊宁凹陷中二叠统膏盐岩的发现、特征及油气地质意义

发布时间：2018-01-07 22:33

本文关键词：伊宁凹陷中二叠统膏盐岩的发现、特征及油气地质意义　出处：《成都理工大学学报(自然科学版)》2017年03期 　论文类型：期刊论文

更多相关文章： 伊宁凹陷 烃源岩 膏盐岩 资源潜力

【摘要】：膏盐岩常常是油气藏的盖层,研究伊宁凹陷是否存在膏盐岩及膏盐岩与烃源岩的关系对油气勘探具有重要意义。通过野外地质剖面精细测量、实验室X射线衍射分析、岩石薄片原岩恢复,在中二叠统中部发现含膏地层。其中潘津布拉克剖面含膏地层厚53m,膏盐岩层厚20m,最大单层厚度13m,其他剖面均有分布。区内含膏地层厚度为36~53m,分布稳定。中二叠统优质烃源岩主要发育在膏盐岩层之下,厚度大,分布广,有机质类型好,成熟度适中,生烃潜力大。盐下油气成藏条件优越,野外剖面油苗丰富,是油气勘探的主攻方向。
[Abstract]:Gypsum salt rock is often the caprock of oil and gas reservoir. It is important for oil and gas exploration to study the existence of gypsum salt rock and the relationship between gypsum salt rock and source rock in Yining sag. Laboratory X-ray diffraction analysis shows that the original rock is recovered and gypsum formation is found in the middle of Middle Permian. The thickness of gypsum formation is 53 m in Panzinburak section and 20 m in gypsum salt layer. The maximum monolayer thickness is 13 m and other sections are distributed. The thickness of the gypsum formation in the area is 36 ~ 53 m and the distribution is stable. The high quality hydrocarbon source rocks of the Middle Permian are mainly developed under the gypsum rock strata with large thickness and wide distribution. The organic matter is of good type, the maturity is moderate, the hydrocarbon generation potential is great, the oil accumulation condition under salt is superior, and the field profile is rich in oil seedlings, which is the main direction of oil and gas exploration.
【作者单位】：中国石化河南油田分公司勘探开发研究院;中国石化河南油田分公司;
【分类号】：P618.13
【正文快照】： 伊宁凹陷属伊犁盆地内的最大凹陷,位于新疆维吾尔自治区伊犁哈萨克自治州境内;区内煤炭、金、铜、铀等矿产资源丰富;油气勘探发现4套烃源岩层系[1],资源潜力较大,具有形成大-中型油田的物质基础。伊宁凹陷油气勘探历时30余年,地震施工近万千米,钻井10口,6口井见油气显示,2口井

【相似文献】