塔里木盆地震旦系—寒武系万米超深层天然气成藏条件与有利区带优选

doi:10.7623/syxb202111004

石油学报 ›› 2021, Vol. 42 ›› Issue (11): 1446-1457.DOI: 10.7623/syxb202111004

塔里木盆地震旦系—寒武系万米超深层天然气成藏条件与有利区带优选

闫磊¹, 朱光有¹, 王珊¹, 陈志勇¹, 朱永峰², 杨敏¹, 杜德道¹, 陈永权²

1. 中国石油勘探开发研究院北京 100083;
2. 中国石油塔里木油田公司新疆库尔勒 841000

收稿日期:2020-06-15 修回日期:2021-08-28 出版日期:2021-11-25 发布日期:2021-12-01
通讯作者: 朱光有,男,1973年11月生,1998年获石油大学(华东)学士学位,2003年获石油大学(华东)博士学位,现为中国勘探开发研究院教授级高级工程师,主要从事深层油气地质与成藏研究。Email:zhuguangyou@petrochina.com.cn
作者简介:闫磊,男,1985年11月生,2006年获吉林大学学士学位,2011年获吉林大学博士学位,现为中国石油勘探开发研究院高级工程师,主要从事石油天然气地质综合研究工作。Email:yanlei2011@petrochina.com.cn
基金资助:
中国石油天然气股份有限公司科学研究与技术开发项目"海相碳酸盐岩成藏理论与勘探技术研究"（2021DJ05）资助。

Accmulation conditions and favorable areas for natural gas accumulation in the 10 000 meters ultra-deep Sinian-Cambrian in Tarim Basin

Yan Lei¹, Zhu Guangyou¹, Wang Shan¹, Chen Zhiyong¹, Zhu Yongfeng², Yang Min¹, Du Dedao¹, Chen Yongquan²

1. PetroChina Research Institute of Petroleum Exploration and Development, Beijing 100083, China;
2. PetroChina Tarim Oilfield Company, Xinjiang Korla 841000, China

Received:2020-06-15 Revised:2021-08-28 Online:2021-11-25 Published:2021-12-01

摘要/Abstract

摘要： 塔里木盆地超深层碳酸盐岩具有良好的油气勘探潜力，明确震旦系-寒武系万米超深层碳酸盐岩油气成藏条件及有利勘探区带分布规律对于开展塔里木盆地超深层油气勘探具有重要指导意义。塔里木盆地南华系-寒武系烃源岩发育，分布面积广；储层以礁滩相白云岩为主，中寒武统大面积发育的膏盐湖-膏/泥（云）坪沉积有利于油气保存及聚集，空间上构成多种有利的油气成藏生-储-盖组合。综合烃源岩、储层、有利盖层的分布规律，优选塔中隆起北斜坡与温宿凸起周缘的寒武系盐下台内滩、轮南低凸起-满加尔凹陷西部盐下礁后滩、轮南低凸起-古城低凸起台缘带及塔北隆起-满加尔凹陷西部-塔中隆起中寒武统盐间滩相储层分布区是塔里木盆地寒武系超深层有利勘探区带，其中埋深小于10 km的有利勘探面积达9.7×10⁴km²；塔北隆起南斜坡与塔中隆起北斜坡的台内滩储层分布区为震旦系超深层有利勘探区带，其中埋深小于10 km的有利勘探面积达3.1×10⁴km²。研究认识对于开展塔里木盆地震旦系-寒武系超深层天然气勘探具有重要理论和现实意义。

关键词: 超深层, 震旦系, 寒武系, 塔里木盆地, 成藏条件, 有利区带

Abstract: As the ultra-deep carbonate rocks in Tarim Basin have good potential for oil and gas exploration, it is of great guiding significance to clarify the accumulation conditions of oil and gas and the distribution of favorable exploration areas in the Sinian-Cambrian carbonate rocks for ultra-deep oil and gas exploration in Tarim Basin. The Nanhuaian-Cambrian source rocks are well developed and widely distributed in Tarim Basin. The reservoirs are dominated by the dolomite of reef flat facies. A large scale of gypsum-salt lake deposition and gypsum/mud (cloud) flat deposition in Middle Cambrian is beneficial to the hydrocarbon preservation and accumulation, thus forming a variety of source-reservoir-cap combinations favorable for oil and gas accumulation. Based on the distribution pattern of source rocks, reservoirs and favorable caprocks, the Cambrian pre-salt platform shoal on the north slope of Tazhong uplift and the periphery of Wensu uplift, the pre-salt backreef shoal on the west of Lunnan low-uplift and Manjiar sag, the Middle Cambrian intersalt shoal facies reservoir in the platform margin belt of Lunnan uplift and Gucheng uplift, as well as in Tabei uplift, western Manjiar sag and Tazhong uplift are optimized to be the favorable exploration areas of the Cambrian ultra-deep formation in Tarim Basin. Of these, the favorable exploration areas below the burial depth of 10 km cover an area of 9.7×10⁴km²; the platform shoal on the south slope of Tabei uplift and the north slope of Tazhong uplift are the Sinian ultra-deep favorable exploration areas, of which the favorable exploration areas below the burial depth of 10 km cover an area of 3.1×10⁴km². In conclusion, this research is of great theoretical and practical significance for the Sinian-Cambrian ultra-deep natural gas exploration in Tarim Basin.

Key words: ultra-deep, Sinian, Cambrian, Tarim Basin, accumulation conditions, favorable areas

中图分类号:

TE122.2

闫磊, 朱光有, 王珊, 陈志勇, 朱永峰, 杨敏, 杜德道, 陈永权. 塔里木盆地震旦系—寒武系万米超深层天然气成藏条件与有利区带优选[J]. 石油学报, 2021, 42(11): 1446-1457.

Yan Lei, Zhu Guangyou, Wang Shan, Chen Zhiyong, Zhu Yongfeng, Yang Min, Du Dedao, Chen Yongquan. Accmulation conditions and favorable areas for natural gas accumulation in the 10 000 meters ultra-deep Sinian-Cambrian in Tarim Basin[J]. Acta Petrolei Sinica, 2021, 42(11): 1446-1457.

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塔里木盆地震旦系—寒武系万米超深层天然气成藏条件与有利区带优选

Accmulation conditions and favorable areas for natural gas accumulation in the 10 000 meters ultra-deep Sinian-Cambrian in Tarim Basin

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