3D Visualization and Interpretation of VSP, Well Log, and Surface Seismic Data
A 3D VSP (vertical seismic profiling) visual interpretation system has been developed to interpretatively integration of VSP and surface seismic 3D volumes and multi-well logs in the petroleum reservoir regions. Interpretive integration of the multiple dataset will better characterize reservoir structures and also require interactive manipulation of multiple volume data in highly efficient fashion. The visual tools in the system can handle multiple datasets, such as surface seismic volumes, VSP migration image volumes, grid-based velocity models, layer models, seismic attributes, log data, salt exit points, faults, and much more, in a simple and robust manner. 3D VSP processing and interpretation results can be delivered as digital multimedia products.
In this paper, we will demonstrate our visual interpretation capabilities with real case studies and some synthetic datasets. The Vinton Dome is located in southwest Louisiana, USA. The geological province is onshore Gulf of Mexico, South Louisiana Salt Basin. Cumulative production exceeds 140 MMBO and over 1100 wells have been drilled in the field area. 3D seismic and 3C-3D VSP data were simultaneously acquired in 1998. 3C-3D VSP migration volume, surface seismic data, velocity models, tomography results, well logs, well control data, salt proximity results, and other geological information will be integrated to help interpretation. Other applications using multi-walkaway VSP lines, sparse multi-offset VSP data, and results from multi-well, multi-source 3D salt proximity surveys will also be presented.
Drilling and Production Practices
2004 AAPG International Conference and Exhibition Technical Program