Research Institute of Petroleum Exploration&Development-Northwest;
PetroChina;
Lanzhou 730020;
China.;
State Key Laboratory of Petroleum Resources and Prospecting;
CUP(Beijing);
Beijing 102249;
China.;
CNPC Key Laboratory of Geophysical Prospecting;
CUP(Beijing);
Beijing 102249;
China.;
noise attenuation; nonstationary; inversion; shaping regularization;