Abstract：Seismic stratigraphic volume is a special 3D seismic volume which is composed of a large number of horizons extracted from seismic data based on stratigraphic reflection interface and sedimentation characteristics in seismic reflection waves. The concept of “seismic stratigraphic volume” is an extension of “relative geologic time volume” and “horizon cube” proposed by predecessors. Seismic stratigraphic volume can be used to unearth the topography of stratigraphic interfaces and extract the shapes of layered or near-layered geobodies, and implement structure and depositional environment analysis according to the contact relationship among different stratigraphic interfaces. First we discuss in this paper the concept of seismic stratigraphic volume, and then introduce a seismic stratigraphic analysis method and its typical workflow in detail. Finally we use a theoretical model and a real example to introduce its characteristics and illustrate its effects in generating high-precision seismic stratigrahic volume. Seismic stratigraphic volume analysis technique based on dip spreading can achieve high-precision seismic stratigraphic volume, and provide an effective way for real 3D structure interpretation mode. Compared with previous horizon cube technique, seismic stratigraphic volume analysis has three characteristics: A. using dip-scanning technique based con minimum variance algorithm to achieve high-precision stratigraphic dip field; B. using dip spreading technique to improve the precision of horizon auto-tracking; C. using control horizons to implement horizon adjustment in complex fault block zones.
