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近海多波地震技术在YGH盆地浅层气藏勘探中的应用
断块油气田
2002年 9卷 第01期
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Title
The Application of Offshore Multi-Wave Seismic Technique on Exploration of Gas Reservoir in Shallow Formation of YGH Basin
Organization
Nanhai West Institute of CNOOC Research Center , Guangdong 524057 , P. R. China
摘要
为了解决YGH 盆地纵波勘探中遇到的难题,在该盆地4 个构造上开展了多波地震勘探工作。多波地震不但能够有效地、很好地解决构造勘探问题,而且能够准确地预测出气层和含钙层。钻井证实,利用纵横波振幅比和速度比预测浅层气层的方法是完全正确的、可行的。
Abstract
In order to solve the problems encountered in P-wave exploration in YGH Basin , multi-wave seismic exploration has been performed on four structures of the basin. Multi-wave seismic can be used not only for structural exploration ,but also for accurate prediction of the gas zones and calcic formation. According to the drilling results , it’s proved to be correct and feasible , which use amplitude ratio of P-wave , S-wave and velocity ratio to predict gas zones in shallow formations.
关键词：
多波地震;
纵波;
转换横波;
速度比;
泊松比;
构造;
气层预测;
Keywords:
Multi-wave seismic ,P-wave ,Converted wave , Velocity ratio ,Poisson ratio ,Structure , Gas zone prediction;
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