Seismic acquisition techniques and their application for loess hills,in southern Sulige of Ordos Basin
Haiming Li · Progress in geophysics · 2013
In order to explore further the effective techniques for seismic acquisition method in loess Hill area,this south sulige of Ordos basin as an example,in comprehensive study of excitement factors in the area,receive factors and instrument parameters on the basis of contrastive analysis of a large number of field test,the results show that as technology satisfactory collection results: 1) water content of the loess and clay is a good excitation layer,single-well small dose 3~4 kg,9~13 number of combinations to stimulate multi-well excitation techniques;2) receiver technologies have 4212.5m large offset,Multiple line of 2~3 lines,25m group interval,120~160 times the number of high coverage,20 geophones combination of a linear combination and etc;3) the use of more than 90 dB dynamic large range,a large gain,the sampling interval 1ms of high sampling rate,sampling time 5 s long recording time of the instrument acquisition parameters.