隐蔽圈闭识别技术发展概述

20世纪90年代，我国东部大部分含油气盆地相继进入中、高勘探阶段。为了进一步寻找接替储量，对隐蔽圈闭的勘探研究日益加强。目前寻找隐蔽圈闭的技术正在不断地发展并日益成熟。在参阅了大量资料的基础上，简要总结了隐蔽圈闭识别技术的发展，阐述了地震反演，速度分析及AVO分析，地震属性提取及三维可视化，以及面块切片和相干体方法等技术的特点，指出在识别诸如地层尖灭、透镜体及裂缝储层等隐蔽圈闭时只有应用多种方法的优化组合，互相补充和验证，才能使各种技术发挥最大作用，而仅用单一方法则很难成功。

Review of identification technologies for subtle traps

Most oil & gas basins in the eastern China have entered into moderate or high exploration phase in 1990s. In order to further search succeeding reserves, researches on subtle traps are being increasingly deepened. The identification technologies of subtle traps are becoming maturing. This paper gives a review of the development of the identification technologies for subtle traps. The discussed issues include seismic inversion, velocity and AVO analysis, seismic attribute extraction, coherence cube, and 3-D visualization. It is concluded that a combination of methods should be adopted in the recognition of subtle traps like stratal pinchouts, lenticular bodies, and fractured reservoirs. Results from different methods can be complementary and can be used to verify each other.