1. Exploration and Development Research Institute, Daqing Oilfield Company, PetroChina, Daqing, Heilongjiang 163712, China;
2. The Seventh Oil Extraction Plant, Daqing Oilfield Company, PetroChina, Daqing, Heilongjiang 163712, China
Abstract:In the paper, we propose an optimized grid-tomography based velocity model building method for pre-stack depth migration. This method can make up limitations of the conventional tomography for vertical velocity model optimum. Usually it is very difficult to track horizons and velocity interfaces in low S/N ratio areas. In this case, this method is efficient. Applications in Daqing Oilfield indicate that the velocity model building method based on grid tomography is accurate and the algorithm is stable.
李慧, 成德安, 金婧. 网格层析成像速度建模方法与应用[J]. 石油地球物理勘探, 2013, 48(增刊1): 12-16.
Li Hui, Cheng Dean, Jin Jing. Velocity model building based on grid tomography. OGP, 2013, 48(增刊1): 12-16.