Application of coherence technology in the prediction of channel sand
Ji Tongzhou1,2,Yang Yingjun2, Li Shanglin3 (1. Institute of Geology, China Seismological Bureau, Beijing 100029, China; 2. Exploration & Development Research Institute of Liaohe Oilfield Company, Panjin 124010, China; 3. China University of Geosciences, Beijing 100010, China)
Prediction of channel sand with coherence analysis has been widely accepted in hydrocarbon prospecting. By comparing the adjacent traces in a seismic data set, the method creates a coherence cube. The coherence cube is then analyzed by 3D visualization techniques. This method not only has a solid theoretical ground, but also yields desired results in practice. The application of coherence analysis in the prediction of channel sand can greatly improve the exploration precision and hit rate of drilling.