南海北部天然气水合物赋存带识别与深度预测

杨睿; 张媛; 雷新华; 苏正; 梁金强; 沙志彬

doi:10.3724/SP.J.1140.2011.04141

南海北部天然气水合物赋存带识别与深度预测

杨睿^1,2,3,
张媛⁴,
雷新华³,
苏正^1,2,
梁金强⁵,
沙志彬⁵

1 中国科学院广州能源研究所, 可再生能源与天然气水合物重点实验室, 广州 510640;
2 中国科学院广州天然气水合物研究中心, 广州 510640;
3 中国地质大学(北京) 软件学院, 北京 100083;
4 中油集团东方地球物理公司研究院长庆分院, 西安 710021;
5 广州海洋地质调查局, 广州 510075

基金项目:

中国科学院知识创新工程重要方向项目(KGCX2-YW-805)

国土资源部公益性行业科研专项基金项目(200811014)

国家自然科学基金-广东联合基金项目(U0933004)

中国科学院可再生能源与天然气水合物重点实验室基金项目(o907jb1001)

详细信息

作者简介:
杨睿(1980-),硕士,研究实习员,主要从事海洋天然气水合物地震研究,E-mail:yangrui@ms.giec.ac.cn

中图分类号: P744.4
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出版历程
- 收稿日期: 2010-10-18
- 修回日期: 2011-03-10

IDENTIFICATION OF GAS HYDRATE RESERVOIR AND ITS DEPTH ESTIMATION IN SHENHU AREA, SOUTH CHINA SEA

1. Guangzhou Institute of Energy Conversion, Key Laboratory of Renewable Energy and Gas Hydrate, Chinese Academy of Sciences, Guangzhou Guangdong 510640;
2. Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou, Guangdong 510640;
3. School of Software, China University of Geosciences(Beijing), Beijing 100083;
4. Guangzhou Marine Geological Survey, Guangzhou, Guangdong 510075

摘要

摘要: 利用地球物理方法,在钻探前对水合物赋存带进行识别和深度预测,可以为钻探井位的选取及井深的规划提供直接的数据支持。在我国南海北部二维地震数据的基础上,以速度为主要判别依据,以波阻抗反演为佐证,识别水合物赋存带的顶、底界,并以叠加速度谱为基础,预测神狐海域A测线预测井位的水合物赋存深度。在此数据的指导下,经钻探证实,该钻位在预测深度附近确实存在高饱和度的水合物矿藏。
- 天然气水合物 /
- 水合物赋存带 /
- 速度 /
- 波阻抗 /
- 南海北部
Abstract: Rationale drilling planning requires precise data on gas hydrate reservoir and its depth before drilling. 2-D seismic data from the Northern South China Sea were used to identify the top and bottom of the gas hydrate reservoir by the changes in velocity and impedance. The depth of the reservoir was then calculated with RMS velocity. Guangzhou Marine Geological Survey carried out field drilling in 2007, and the gas hydrate reservoir with high saturation was discovered at the depth predicted, suggesting that the calculation is precise enough for drilling planning.
- gas hydrate /
- hydrate reservoir /
- P-velocity /
- wave impedance /
- Northern South China Sea

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参考文献(27)

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