Web-based Display and Downloading of Geophysical Data

Summary Three-dimensional modeling data are useful for validating 3-D processing algorithms (e.g. migration, velocity analysis, multiple suppression, etc.), understanding wave propagation in a complex 3-D medium, choosing proper acquisition parameters, and testing various data compression and transmission techniques. The availability of 3-D modeling data online would be a great advantage to both the oil industry and academia. The well-known SEG/EAGE 3-D numerical modeling data sets used to be accessible from Lawrence Livermore National Laboratory (LLNL) via the World Wide Web (1). The Allied Geophysical Laboratories (AGL), University of Houston, is considering providing similar services. This project aims at exploring approaches to data uploading, extraction, and transmission. The 83GB Vertical Cable Data Set, acquired over the AGL physical model version of the SEG/EAGE Salt Model, serves as the prototype test data using a series of dynamic interactive web pages that allow users to download data subsets by shot, by shotline, or by swath. The data can be organized as shot-gathers or receiver-gathers upon users’ requests.