地球物理学进展 ›› 2021, Vol. 36 ›› Issue (1): 412-424.doi: 10.6038/pg2021EE0029

• 应用地球物理学Ⅱ(海洋、工程、环境、仪器等) • 上一篇    下一篇

海底节点(OBN)地震勘探:进展与成果

吴志强1,2(), 张训华1,2, 赵维娜2,3,*(), 祁江豪1,2, 朱晓青1,2, 田振兴1,2   

  1. 1.自然资源部海洋环境地质重点实验室,青岛海洋地质研究所, 青岛 266071
    2.青岛海洋科学与技术国家试点实验室海洋矿产资源评价与探测技术功能实验室,青岛 266071
    3.西北工业大学青岛研究院,青岛 266200
  • 收稿日期:2020-04-06 修回日期:2020-09-19 出版日期:2021-02-20 发布日期:2021-03-11
  • 通讯作者: 赵维娜 E-mail:wuzq_1964@163.com;ouczwn@163.com
  • 作者简介:吴志强,男,1964年生,博士,研究员,主要从事海洋油气地球物理研究工作.E-mail: wuzq_1964@163.com
  • 基金资助:
    国家自然科学基金项目(41806048);国家自然科学基金项目(41606083);青岛海洋科学与技术国家试点实验室鳌山科技创新计划项目(2015ASKJ03)

Ocean Bottom Station Nodes (OBN): progress and achievement

WU ZhiQiang1,2(), ZHANG XunHua1,2, ZHAO WeiNa2,3,*(), QI JiangHao1,2, ZHU XiaoQing1,2, TIAN ZhenXing1,2   

  1. 1. Key Laboratory of Marine Environmental Geology, Ministry of Natural Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China
    2. Function Laboratory for Marine Mineral Resource Geology and Exploration, Qingdao National Oceanography Laboratory, Qingdao 266071,China
    3. Qingdao Research Institute of Northwestern Polytechnical University, Qingdao 266200, China
  • Received:2020-04-06 Revised:2020-09-19 Online:2021-02-20 Published:2021-03-11
  • Contact: ZHAO WeiNa E-mail:wuzq_1964@163.com;ouczwn@163.com

摘要:

海底节点(OBN) 在有效弥补拖缆地震(TS)的勘探盲区、提供多波和宽方位角数据、定点和重复性等方面具有优势,成为海洋地震勘探的新技术方法.近十年来,OBN勘探技术和装备得到了快速发展,节点地震仪的性能进一步被优化,海底工作的时间和水深得到大幅度提升;智能自动化节点地震勘探系统走向实用,显著地提高了采集工作效率;针对OBN资料的特点,目前已研发了位置校正、上行/下行波场分离、镜像偏移、PS波成像与速度建模等处理方法,提高了成像品质,推动了OBN地震勘探在海洋油气田调查、地震识别和油气藏开发过程中的动态监测(4D)等方面的应用进程.本文重点介绍了OBN方法原理、工作特点、发展历程和应用实例,分析了OBN技术的发展方向.

关键词: 海底节点, 历程, 采集, 处理, 应用

Abstract:

Ocean Bottom Nodes(OBN), having advantage over compensates for the blind area of the Towline Seismic (TS) survey, multi-wave and wide azimuth data, and the fixed point and repeatability, become a new technical method in marine seismic exploration. In the past decade, OBN exploration technology and the equipment have been rapidly developed, the performance has been further optimized, and the working time and depth on the seabed have been greatly improved. The intelligent and automatic OBN exploration systems are becoming practical, which improve the acquisition efficiency. Position correction, up/down wave field separation, mirror image migration, PS wave imaging and velocity modeling are applied in OBN data processing, which improve the imaging quality and promote the application of OBN exploration in offshore oil and gas field survey, seismic identification and dynamic monitoring (4-dimension) in oil and gas reservoir development. This paper mainly states the OBN principle, working characteristics, development history and application examples, and analyzes the development of OBN exploration.

Key words: Ocean Bottom Node(OBN), Technical development, Data acquisition, Systematic processing, Application scenarios

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