Application of broadened line plus long distance geophone array seismic technique in the complex mountainous area of north Kashgar

North Kashgar area is located in the west of Tarim basin which is characterized by fluctuating surface,high-steep subsurface structures and developed faults.The difficulties in exploration include complex surface structure,serous secondary interference,poor shooting and receiving conditions,low signal-to-noise of the seismic data,which leads to bad imaging results.Aiming at the problems,we adopted broadened line plus long distance geophone array seismic technique to acquire seismic data in the area.The obtained seismic data was compared to conventional data.The result indicates that the new acquisition method effectively improved the fold,pressed the interference,and the quality of the seismic sections was largely increased,which provides beneficial conditions for the discovery and identification of main structures,as well as the deployment of drilling location.