摘要
采用高频、高采样率的高分辨率横波勘探技术,对过去用常规勘探难以得到资料、埋深小于100m的第四系覆盖区和物性差异小的薄互层进行了勘探,得到了浅层层次多、分辨率高的地震剖面。通过解释发现了小构造、小断层、古河道、三角洲等,为浅层天然气勘探布井提供了可靠的地震依据。
With high frequency, sampling rata and resolution techniques the shear wave seismic explo- ration has been conducted in the region with Quaternary-buried depth less than 100m as well as in thin al- ternating beds. Whith lessphysical property difference, both of which used to be very difficult to receive seismic data and seismic section showing as multiple shalow beds with higher resolution obtaind. By means of data interpretation, some small structures and faults, paleochannels, deltas etc. have been discovered, which furnish the reliable seismic geologycal foundation for shallow natural gas exploration.
关键词
横波勘探
浅层
天然气
地震勘探
Quaternary
Shear wave's exploration
Struture
Oldchanel
Delta foreset facies
Shellow lyer
