塔里木北部新元古代裂谷盆地古地理格局与油气勘探潜力  

The paleogeographic framework and hydrocarbon exploration potential of Neoproterozoic rift basin in northern Tarim Basin

作　　者：吴林[1] 管树巍[1] 杨海军[2] 任荣[1] 朱光有[1] 靳久强[1] 张春宇[1] Wu Lin Guan Shuwei Yang Haijun Ren Rong Zhu Guangyou Jin Jiuqiang Zhang Chunyu(PetroChina Research Institute of Petroleum Exploration ＆ Development, Beijing 100083, China Research Institution of Petroleum Exploration ＆ Development, PetroChina Tarim Oil field Company, Xinjiang Korla 841000, China)

机构地区：[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勘探开发研究院,新疆库尔勒841000

出　　处：《石油学报》2017年第4期375-385,共11页Acta Petrolei Sinica

基　　金：中国石油天然气股份有限公司"油气勘探新领域;新理论;新方法与新技术研究"(2014A-02)项目资助

摘　　要：基于露头、钻井、地震等资料,在明确地层充填序列及建立地层格架基础上,分析塔里木北部新元古代裂谷盆地古地理演化格局及其油气勘探潜力。在Rodinia超大陆聚合与裂解的背景下,塔里木新元古代发育塔北古陆和塔里木古陆,两者中间夹持EW走向的弧后裂谷盆地,东北部库鲁克塔格地区和西北部阿克苏地区充填巨厚的海相碎屑岩、碳酸盐岩和火山岩,包括冰碛岩,发育深海、浅海、滨海环境和三角洲、冰海过渡性环境。早南华世—晚震旦世,北部裂谷盆地总体由深海演化至滨浅海环境,岩性由碎屑岩向碳酸盐岩转变。根据野外烃源岩和生产数据认为,塔里木北部具有烃源岩和储层形成的良好条件,新元古界具有一定勘探潜力。Based on the outcrop, drilling, and seismic data as well as the clarified stratigraphic filling sequence and framework, a sys tematic analysis is made on the paleogeographic evolution pattern and hydrocarbon exploration potential of Neoproterozoic rift basin, north Tarim. Since the aggregation and breakup of Rodinia supercontinent, Tabei paleocontinent and Tarim paleocontinent were de veloped in Neoproterozoic Tarim, with an EW-trending back-arc rift basin between them. The northeast Kuruktag area and north west Aksu area are filled with hugely-thick marine clastic rocks, carbonate rocks and volcanic rocks, including tillite rocks, where abyssal sea, neritic sea and littoral sea environments are developed as well as delta and ice sea transitional environments. In Early Nanhua-Late Sinian, the north rift basin generally evolved from abyssal sea to littoral-neritic environment, where the lithology transited from elastic rocks to carbonate rocks. According to field source rocks and production data, the north Tarim has good conditions for the formation and preservation of source rocks and reservoirs, proving certain Neoproterozoic exploration potential.

关 键 词：塔里木盆地 新元古代 南华系 震旦系 古地理 油气勘探 

分 类 号：TE121.1[石油与天然气工程—油气勘探]