新疆石油地质

新疆石油地质 ›› 2010, Vol. 31 ›› Issue (5): 485-488.

• 油气勘探 • 上一篇    下一篇

南海北部天然气水合物成矿区的地球物理异常特征

苏丕波1, 雷怀彦1,2, 梁金强3, 沙志彬3, 梁劲3   

  1. 1.厦门大学 海洋与环境学院 近海海洋环境国家重点实验室,福建 厦门 361005;
    2.中国科学院 地质与地球物理研究所 兰州油气中心,730000;
    3.广州海洋地质调查局,广州 510760
  • 收稿日期:2010-04-03 发布日期:2020-10-21
  • 作者简介:苏丕波(1981-),男,湖北潜江人,在读博士研究生,海洋地质,(E-mail)spb_525@sina.com.
  • 基金资助:
    国家973项目(2009CB219501);国家自然科学基金项目(40472156)

Geophysical Anomaly Characteristics of Gas Hydrate Zone in Northern South China Sea

SU Pi-bo1, LEI Huai-yan1,2, LIANG Jin-qiang3, SHA Zhi-bin3, LIANG Jin3   

  1. 1. State Key Laboratory of Marine Environmental Science, College of Oceanography and Environmental Science, Xiamen University, Xiamen, Fujian 361005, China;
    2. Lanzhou Research Center of Petroleum Resources, Institute of Geology and Geophysics, Chinese Academy of sciences, Lanzhou, Gansu 730000, China;
    3. Guangzhou Marine Geology Survey, Guangzhou, Guangdong 510760, China
  • Received:2010-04-03 Published:2020-10-21

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摘要： 以南中国海北部天然气水合物勘探区的实际地球物理资料为依据,探讨了天然气水合物矿区的地震反射异常特征、地球物理测井异常特征、地热特征及其之间的关系。研究结果表明,常规地震剖面结合叠后地震属性剖面解释能够有效识别水合物成矿带;水合物声波速度、电阻率与密度等测井曲线的组合分析是判断水合物层赋存的有效途径;通过地震、测井及地热等多种地球物理特征联合分析与融合,能够优化、集成有效的地球物理技术,提高天然气水合物识别的有效性,形成可靠的水合物矿藏预测技术方法。

关键词: 南中国海, 北部, 天然气水合物, 地球物理探测, 方法

Abstract: Based on the geophysical data of gas hydrate prospecting area in northern South China Sea, the correlation analysis of the seismic reflectance and attribute profiles, geophysical logging curves and geothermal data in this area is conducted, and the anomaly characteristics of these and their relations are discussed. The result shows that the conventional seismic profile integrated with post-stack seismic attribute profile interpretation can be used to effectively identify the gas hydrate zone in northern South China Sea; the combination of acoustic velocity logs, resistivity logs and density logs is the effective way to judge the occurrence of the gas hydrate zone in this area; the comprehensive analysis and combination of these geophysical characteristics can optimize and integrate effectual geophysical technologies, enhance the validity of identifying gas hydrate and develop a set of reliable prediction means.

Key words: South China Sea, north, gas hydrate, geophysical prospecting, method

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