Abstract:

Three-dimensional geological molding (3D-GM) is getting more and more important in the oil-gas field exploration. The utility of 3D-GM in the detrital reservoirs is mature and efficient; however, in the carbonate reservoirs, it still lies in the exploratory stage. With the developing of the geophysical technique and its extensive using in the research of petroleum geology, people become aware of the practicality of the seismic technology. In this article, authors use PETREL reservoir modeling software, adopting the RMS seismic attributes extraction technology as the core modeling method, to establish the distribution model of carbonate cavities. A contrast between the real and the predicted caves shows that 54 out of 72 predicted data inosculate the real ones. The coincidence rate is 75%. The model precisely reconstructs the Tahe-4 region^,s underground directional distribution and provides a valid reference for the subsequent exploration.

Key words: reservoir geologic modeling, carbonate, RMS extracting technology