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现代地质 ›› 2022, Vol. 36 ›› Issue (05): 1230-1241.DOI: 10.19657/j.geoscience.1000-8527.2021.141

• 含油气盆地 • 上一篇    下一篇

冀中坳陷束鹿凹陷潜山分类与成藏模式

王鹏1(), 张宇飞2, 杨丽丽3, 杨双涛4, 王芳1, 万照飞1, 贾昔东3, 魏一冰1, 姜宏宇1, 王永君1   

  1. 1.东方地球物理公司研究院地质研究中心,河北 涿州 072750
    2.华北油田公司勘探开发研究院,河北 任丘 062552
    3.东方地球物理公司塔里木物探处方法研究所,新疆 库尔勒 841000
    4.东方地球物理公司研究院海外部,河北 涿州 072750
  • 收稿日期:2021-04-19 修回日期:2022-03-10 出版日期:2022-10-10 发布日期:2022-11-03
  • 作者简介:王 鹏,男,高级工程师,1979年出生,构造地质学专业,从事地震资料解释及综合地质研究工作。Email: whq_125@163.com
  • 基金资助:
    中国石油天然气股份有限公司科技重大专项“华北油田持续稳产勘探开发关键技术研究与应用”(2017E-15)

Tectonic Characteristics and Hydrocarbon Accumulation Models of the Buried-hill in Shulu Sag, Jizhong Depression

WANG Peng1(), ZHANG Yufei2, YANG Lili3, YANG Shuangtao4, WANG Fang1, WAN Zhaofei1, JIA Xidong3, WEI Yibing1, JIANG Hongyu1, WANG Yongjun1   

  1. 1. Geological Research Center, BGP Geological Research Institute, CNPC, Zhuozhou, Hebei 072750, China
    2. Huabei Oilfield Company, Exploration and Production Research Institute, Renqiu, Hebei 062552, China
    3. Eastern Geological Company Tarim Geophysical Research Institute, CNPC, Korla, Xinjiang 841000, China
    4. Overseas Business Department, BGP Geological Research Institute, CNPC, Zhuozhou, Hebei 072750, China
  • Received:2021-04-19 Revised:2022-03-10 Online:2022-10-10 Published:2022-11-03

摘要:

冀中坳陷束鹿凹陷发育于太古宙变质岩结晶基底上,其经历了中晚元古代裂陷槽阶段、古生代克拉通盆地阶段、中生代构造转换调整阶段和新生代断陷型盆地等4个阶段,为一典型地台-断陷-坳陷多层结构的复合盆地。盆地历经多次构造运动改造,潜山较发育,类型多样。在总结前人对潜山研究的基础上,结合束鹿凹陷三维连片地震资料,对该地区潜山类型进行系统划分,并对典型潜山的构造特征及生储盖匹配关系进行了描述。研究区潜山根据成因可划分为剥蚀型潜山和拉张型潜山两大类,根据形态可划分为剥蚀残丘型潜山、不整合潜山、断阶型潜山、断槽冲蚀沟型潜山、断垒型潜山和断块型潜山等类型。束鹿凹陷潜山的发育具有分带性,按潜山的构造位置,分为凸起潜山带、缓坡潜山带、洼槽潜山带和陡坡潜山带,不同构造带发育不同类型的潜山。研究结果表明束鹿凹陷中新元古界、古生界潜山数量众多,规模较大,是束鹿凹陷实现油气突破的一种重要油气藏类型。

关键词: 潜山, 构造特征, 油气分布, 束鹿凹陷

Abstract:

The Shulu Sag was developed on the Archaean metamorphic crystalline basement, and had undergone four tectonic stages: Meso-/Neo-Proterozoic rifting, Paleozoic cratonic basin, Mesozoic tectonic transformation-modification and Cenozoic fault-depression basin. It is a typical multi-layered basin of platform-fault-depression. Due to the multiple tectonic movements, various buried hills are well developed. Based on previous buried hill studies and combining with 3D multi-block-jointed seismic data from the Shulu sag, the local buried hill types are systematically classified, and their tectonic characteristics and source-reservoir-cap correlation are described. We divided the buried hills into denudation and stretch types according to their origin, and into denudation stump, unconformity, fault-step, fault-channel erosion ditch, fault-barrier and fault-block types based on their morphology. Buried hill development in the Shulu sag exhibits zonation patterns, and according to the tectonic location it can be divided into raised, gentle-slope, trough, and steep-slope buried hill belts. Different types of buried hills were developed in the different tectonic zones. We show that there are a large number of large-scale buried hills in the Mesoproterozoic and Paleozoic Shulu sag, which is an important type of oil-gas reservoir for exploration breakthrough in the sag.

Key words: buried hill, tectonic characteristic, hydrocarbon distribution, Shulu Sag

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