Acta Petrolei Sinica ›› 2024, Vol. 45 ›› Issue (1): 276-294.DOI: 10.7623/syxb202401016

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The oil and gas seismic exploration techniques and development direction of foreland thrust belts in China

Chang Deshuang, Wang Guizhong, Wen Tiemin, Li Daoshan, Hu Shaohua, Li Kai, Liu Dongmin   

  1. CNPC Bureau of Geophysical Prospecting Inc., Hebei Zhuozhou 072750, China
  • Received:2023-09-02 Revised:2023-11-27 Online:2024-01-25 Published:2024-02-20

中国前陆冲断带油气地震勘探技术及发展方向

常德双, 王贵重, 温铁民, 李道善, 胡少华, 李凯, 刘冬民   

  1. 中国石油集团东方地球物理勘探有限责任公司 河北涿州 072750
  • 通讯作者: 胡少华,男,1964年6月生,2007年获中国地质大学(北京)矿产普查与勘探专业博士学位,现为中国石油集团东方地球物理勘探有限责任公司高级技术专家、教授级高级工程师,主要从事新领域及风险勘探目标评价工作。Email:hushaohua@cnpc.com.cn
  • 作者简介:常德双,男,1970年9月生,2002年获石油大学(北京)矿产普查与勘探专业工学硕士学位,现为中国石油集团东方地球物勘探有限责任公司研究院院长,主要从事地震资料处理解释技术研究及应用工作。Email:changdeshuang@cnpc.com.cn
  • 基金资助:
    中国石油天然气集团有限公司前瞻性基础性技术攻关项目"页岩油气地震地质工程一体化储层评价关键技术研究"(2021DJ3705)资助。

Abstract: It is the foreland basin that has the most abundant oil and gas resources in the whole world, and the foreland thrust belt located on its active limb has become an important replacement area for achieving exploration breakthroughs and increasing reserves. In China, the development of seismic exploration techniques for oil and gas in the foreland thrust belts has gone through four stages of conventional 2D, large wide-line combination 2D, conventional 3D, and wide azimuth high-density 3D seismic technologies. The key techniques of seismic exploration for oil and gas in the foreland thrust belt of China are expounded from three aspects, i.e., the seismic acquisition, optimization and design technology for prestack depth migration imaging, seismic data processing technology and seismic data interpretation technology for complex tectonic zones. The paper introduces the main exploration achievements in the Kuche subbasin in Tarim Basin and the southern edge of Junggar Basin, which are of great significance for promoting the formation and application of key supporting techniques in the foreland thrust belt. For the challenges faced in the exploration of foreland thrust belts, such as complex surface and subsurface geological conditions (dual complexity), severe tectonic deformation, and poor seismic data quality, it is still necessary to explore and develop in the directions of artificial intelligence and geophysical exploration technology, deep to ultra deep layers, stratigraphic-lithologic reservoirs and unconventional oil and gas reservoirs, comprehensive geophysical services, as well as interdisciplinary integrated collaborative work.

Key words: foreland thrust belt, seismic exploration techniques, development history, key technologies, development direction

摘要: 前陆盆地是世界上油气资源最丰富的盆地类型,而地处其活动翼的前陆冲断带已成为近年来勘探突破发现和增储上产的重要接替领域。中国前陆冲断带油气地震勘探技术发展经历了常规二维地震、宽线大组合二维地震、常规三维地震和宽方位高密度三维地震4个阶段。通过面向叠前深度偏移成像的地震采集优化设计技术、面向复杂构造区的地震资料处理技术和面向复杂构造区的地震资料解释技术3个方面阐述了中国前陆冲断带油气地震勘探关键技术,并以塔里木盆地库车坳陷、准噶尔盆地南缘为例介绍了主要勘探成效,其对推动前陆冲断带核心配套技术形成和应用具有重要意义。对于前陆冲断带勘探中所面临的复杂地表和地下地质条件(双复杂)、构造变形剧烈、地震资料品质差等挑战,依然需要在"人工智能+物探技术"、深层—超深层、岩性地层及非常规油气藏、地球物理综合服务与跨专业一体化协同工作等方向进行探索和发展。

关键词: 前陆冲断带, 地震勘探技术, 发展历程, 关键技术, 发展方向

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