摘要
利用常规地震勘探无法对四川盆地川中地区侏罗系薄互层、微裂缝、河道砂体进行精细描述,为解决该区原油地震勘探中的这一关键技术问题,应用了在去噪、成像、提高分辨率方面具有独特优势的高密度三维地震勘探技术,并对关键参数进行了优选,获取的高密度资料较原三维地震资料品质有大幅度提高,低频和高频端均有所拓展,分辨率明显提高,为解决该区侏罗系石油勘探提供了有力的技术支撑。
The Jurassic thin interbed,microfractures and channel sandbody,central Sichuan Basin,can not be finely described by some conventional seismic technologies.So,a high- density 3D seismic technology that has unique advantages in de- noising,imaging and improving resolution was developed and has been applied to the study area.The key parameters were optimally selected.For some obtained high- density data,their quality is substantially better than that of original 3D seismic data.The end of high- and low- frequency is somewhat expanded,and the resolution is significantly improved.This technology can provide a strong technical support for exploration of the Jurassic oil in the area.
出处
《天然气勘探与开发》
2013年第4期39-43,7,共5页
Natural Gas Exploration and Development
关键词
高密度
面元
覆盖次数
浅井
小药量
high density
Bin
coverage number
shallow well
small charge
