石油学报 ›› 2023, Vol. 44 ›› Issue (7): 1041-1057.DOI: 10.7623/syxb202307002

• 地质勘探 • 上一篇    下一篇

塔里木盆地柯坪断隆构造特征及油气勘探潜力

张君峰1,2, 高永进1,2, 刘亚雷1,2, 周新桂1,2, 程明华3, 姜鹍鹏1,2, 韩淼1,2, 杨有星1,2, 苗苗青1,2, 李清瑶1,2   

  1. 1. 中国地质调查局油气资源调查中心 北京 100083;
    2. 中国地质调查局非常规油气地质重点实验室 北京 100029;
    3. 中国石油集团东方地球物理勘探有限责任公司研究院库尔勒分院 新疆库尔勒 841001
  • 收稿日期:2022-08-04 修回日期:2023-03-05 出版日期:2023-07-25 发布日期:2023-08-08
  • 通讯作者: 刘亚雷,男,1984年7月生,2013年获中国科学院地质与地球物理研究所博士学位,现为中国地质调查局油气资源调查中心高级工程师,主要从事区域构造分析和石油地质综合研究。Email:liuyalei@mail.cgs.gov.cn
  • 作者简介:张君峰,男,1971年9月生,2007年获中国石油勘探开发研究院博士学位,现为中国地质调查局油气资源调查中心教授级高级工程师,主要从事石油天然气地质方面的研究工作。Email:zjf_oilgas@163.com
  • 基金资助:
    中国地质调查局地质调查项目"新疆重点地区油气资源调查评价"(DD20230259)、"西部重点盆地新区新层系油气资源调查评价"(DD20230021)和"全国油气重点调查区战略性矿产调查评价"(DD20230042)资助。

Tectonic characteristics and hydrocarbon exploration potential of Keping fault-uplift in Tarim Basin

Zhang Junfeng1,2, Gao Yongjin1,2, Liu Yalei1,2, Zhou Xingui1,2, Cheng Minghua3, Jiang Kunpeng1,2, Han Miao1,2, Yang Youxing1,2, Miao Miaoqing1,2, Li Qingyao1,2   

  1. 1. Oil and Gas Survey Center, China Geological Survey, Beijing 100083, China;
    2. The Key Laboratory of Unconventional Petroleum Geology, China Geological Survey, Beijing 100083, China;
    3. Korla Branch, Research Institute of CNPC Geophysical Company Limited, Xinjiang Korla 841001, China
  • Received:2022-08-04 Revised:2023-03-05 Online:2023-07-25 Published:2023-08-08

摘要: 基于非地震资料的认识和一系列二维地震剖面的精细解释,剖析了柯坪断隆的构造属性、构造演化和断裂系统,划分了内部构造单元。研究认为:柯坪断隆为塔里木盆地的一部分,是盆地的一级构造单元;受不同断裂控制,柯坪断隆可分为3个构造分区,即东段阿克苏区、中段柯坪区和西段西克尔区,分别发育不同的构造样式;柯坪断隆经历了加里东期、海西期、印支期—燕山期、喜马拉雅期等多期构造运动,最终形成了现今的隆-坳格局。油气地质条件综合分析表明,柯坪断隆发育优质烃源岩、良好的生-储-盖组合和古隆起背景,沙井子构造带志留系天然气圈闭资源量达0.201 8×1012m3,柯坪断隆震旦系—寒武系深层石油资源量为16.84×108t,油气勘探潜力巨大。其中,阿克苏区的古生界、新生界构造-岩性圈闭,以及柯坪区和西克尔区的寒武系盐下隐伏构造是主要的油气勘探目标。

关键词: 柯坪断隆, 一级构造单元, 断裂系统, 构造区带, 构造演化, 勘探潜力

Abstract: Based on the understanding of non-seismic data and the fine interpretation of a series of two-dimensional seismic profiles, the paper analyzes the tectonic attributes, tectonic evolution, and fault system of Keping fault-uplift, and divides the internal tectonic units. The study shows that Keping fault-uplift is a part of Tarim Basin and a first-order tectonic unit of the basin. Controlled by different faults, Keping fault-uplift can be divided into three tectonic zones, i.e., Aksu area in the eastern section, Keping area in the middle area, and Xikeer area in the western section, of which the tectonic styles are different. Keping fault-uplift underwent several tectonic movements, including Caledonian, Hercynian, Indosinian-Yanshanian, and Himalayan movements, finally forming the current uplift-depression pattern. The comprehensive analysis of petroleum geological conditions shows that Keping fault-uplift has high-quality source rocks, good source-reservoir-cap assemblage and paleo-uplift background, the amount of natural resources from Silurian gas trap in Shajingzi structural belt is 0.201 8×1012m3, and the amount of deep oil resources in Sinian and Cambrian reservoirs of Keping fault-uplift is 16.84×108 t. Those indicate a great potential for oil-gas exploration. In the study area, the Paleozoic and Cenozoic tectonic-lithologic traps in Aksu area as well as the Cambrian subsalt concealed structures in Keping and Xikeer areas are the main hydrocarbon exploration targets.

Key words: Keping fault-uplift, first-order tectonic unit, fault system, tectonic zone, tectonic evolution, exploration potential

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