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在全球石油高度紧缺的形势下,寻找剩余石油显得非常重要。但是,容易寻找的简单构造油气藏大都已发现,剩下未发现的油气藏大都是复杂构造、地层和岩性圈闭油气藏。用地震技术到底能不能找到那些复杂的隐蔽油气藏?这是本文所要探讨的内容和回答的问题。本文提出以AVO叠前处理解释为核心的地震数据处理解释一体化系统工程。一体化的处理解释流程保障了叠前和叠后信息的相互反馈,提高了数据利用的准确性和克服地震属性的陷阱;在油气藏评价过程中,与地质信息有机结合,找出最具代表油气特征的多参数进行综合评价,发现油气成藏规律与分布规律,最终达到精确地对储层描述与评价,提出有利圈闭和井位部署建议。本文是对隐蔽油气藏地震资料处理解释一体化所取得的经验的总结及对一些关键问题的探讨,并剖析了地震属性分析中的陷阱。
In the global oil shortage situation, looking for the remaining oil is very important. However, most of the simple structural reservoirs that are easy to find have mostly found that the remaining undetected reservoirs are mostly complex structures, stratigraphic and lithologic trapped reservoirs. Using seismic techniques in the end can not find those complex subtle reservoirs? This is the content of this article to explore and answer questions. In this paper, seismic data processing and interpretation integrated system engineering with AVO prestack processing explained as the core is proposed. The integrated process interpretation process ensures the mutual feedback of prestack and poststack information, improves the accuracy of data utilization and overcomes the traps of seismic attributes. In the process of reservoir evaluation, it combines with geological information to find the most representative Comprehensive evaluation of multi-parameters of oil and gas characteristics, discovery of hydrocarbon accumulation law and distribution, and ultimately to accurately describe and evaluate the reservoir, proposed favorable trap and well location recommendations. This paper summarizes the experience gained from the integration of seismic data processing and interpretation in subtle reservoirs and discusses some key issues, and analyzes the pitfalls in seismic attribute analysis.