我国西部地区岩性油气藏的圈定与表征

The delineation and characterization of litnological hydrocarbon reservoir in western China.

根据我国西部地区隐蔽油气藏勘探目标,在总结当前地震数据常规构造解释工作流程的基础上,讨论了值得商榷的5个问题,提出了建议:①了解和掌握强标志层的地震响应特征;②分析强标志层与目的层之间的组合接触关系;③加强储层特性地质认识;④在切片上解释。讨论了基于时频分析、AVO分析和层序地层学的地震数据处理解释方法。指出隐蔽油气藏勘探地震数据处理与解释中综合分析和处理解释一体化工作模式,是十分重要的2项工作方式和方法。

Based on a review of the workflow of conventional structural interpretation on seismic data,this paper discussed 5 problems that arose from exploration for subtle reservoirs in western China. The author suggests that higher priorities should be given to following aspects;1) understand the seismic responses of strong marker beds;2) analyze the associations between strong marker beds and the target of interest;3) refine the geologic understanding of reservoir properties;and 4) interpretation on slices. Seismic data processing and interpretation methods based on time-frequency. AVO analysis and sequence stratigraphy were also discussed. It was pointed out that integrated analysis and integration of processing and interpretation are the 2 most important approaches in seismic exploration for subtle reservoirs.