从勘探领域变化看地震储层预测技术现状和发展趋势

Current status and development trends of seismic reservoir prediction viewed from the exploration industry

在分析构造、岩性地层和非常规勘探领域对地震储层预测技术需求的基础上,从勘探领域变化与地震技术储备之间的关系阐明当前地震储层预测技术存在的问题与不足。从地震波的定义出发,基于地震储层预测技术前提假设与实际勘探领域介质之间存在的差异,总结地震储层预测技术的发展趋势,分析储层预测关键技术的发展方向,给出整体技术发展建议:即以连续、非均匀、各向异性介质及其弹性波传播理论为基础;强化地震岩石物理分析和资料保真处理研究;研发基于衰减与频散以及方位相关地震属性的储层预测特色技术;通过整合技术资源,形成面向复杂岩性地层和非常规油气勘探领域的地震储层预测配套技术;做好储层预测质控,提高储层预测的精度和可靠性。

In this paper,we review new requirements of structure,lithology,stratigraphy,and unconventional reservoir exploration for seismic technology,and discuss seismic reservoir prediction.According to the seismic wave definition,the prediction hypotheses,and real media characteristics,we summarize available techniques of reservoir prediction,and analyze development trends in the future.For the future research of seismic reservoir prediction,we offer the following suggestions:A.Based on continuous,heterogeneous,anisotropic media and elastic wave propagation theories,focusing on rock physics analysis and amplitude-preserved processing;B.Based on attenuation and dispersion,developing prediction approaches with azimuthal attributes;C.Developing prediction tools for lithologic and unconventional reservoirs with multi-disciplines' data;D.Ensuring the prediction quality and accuracy.So a complete series of seismic reservoir prediction approaches for complex lithology,stratigraphy,and unconventional hydrocarbon exploration will be established.