Seismic data acquisitions in Sanhu area,Qaidam Basin
Luo Qi-feng1, Yu Bao-hua1, Wu Ming-sheng2, Zhai Jun-wei1, Pan Jian-yong1, Ma Li-xin1
1. Qinghai Division, BGP Inc., CNPC, Dunhuang, Gansu 736200, China;
2. Research Institute of Exploration and Production, Qinghai Oilfield Limited, CNPC, Dunhuang, Gansu 736200, China
Abstract：There are rich gas accumulation in Sanhu area Qaidam Basin.In the past,the composed way of shot patterns and receiver arrays are used to attenuate the noise in the seismic data acquisitions.But it couldn't achieve the expectations.For improving the signal-to-noise ratio and the resolution of the seismic data,the optimized geometries are designed in the high-precision seismic exploration,and attenuate the noise with the horizontal stacking in the data processing today.Considering the geological tasks and the difficulties of the seismic in SanHu area,we research the noise characteristics and the shortages in the past seismic,and also discuss the better actions of the stack response in the high-precision seismic,for supplying the high quality and the high precision seismic data in this area.
