Zhang Er-hua, Ma Ren-an, Zhao Chun-xia, Yang Jing-yu
603 Teaching and Research Section, Department of Computer Science, Nanjing University of Science and Engineering, 210094, Nanjing City, Jiangsu Province, China
Abstract：Recently common-used visualization of 3-D seismic data volume ( for example,slice visualization ) has obvious trace that uses 2-D interpretation method to interpret 3-D seismic data.The paper considers that in order to completely avoid the limit that uses 2-D interpretation method to interpret 3-D seismic data,the visualization of 3-D seismic data volume has to show each reflector,then to show the fault surface according to the displacement and discontinue of the reflectors so that the relief of these reflectors,space configuration of fault surface and contact relation between the reflector and fault surface can be known and then the beneficial position of oil/gas trap can be determined.Therefore,the paper presented a conception that the wavelet element of same reflector can be stacked into isophase in 3-D space and expounded the thought that directly transform 3-D connected domain ( isophase ) into 3-D reflectors after refinement of the former.On that basis,the paper presented a new method for 3-D reflector tracing—the ordered cross algorithm of 3-D connected domain.The results of real cases showed the effectiveness of the method.
