Processing for robust time-lapse seismic analysis: Gulf of Mexico example, Lena Field

نویسندگان

  • John Eastwood
  • David Johnston
  • Xuri Huang
  • Ken Craft
چکیده

It is a conceptually simple process to compute differences between two 3D seismic monitoring surveys. However, interpretation of seismic differences in terms of reservoir changes during production assumes repeatability of the surveys. As a result, the naive application of this methodology can lead to erroneous results. Ross et al. (1996, 1997) discussed many of the problems associated with differences constructed from multiple 3D seismic data volumes. Most problematic are the issues concerning legacy time-lapse data, where the least number of experimental controls are in place. The purpose of our study was to assess the impact of different processing efforts on two legacy data volumes and report the results in terms of not only repeatability but also the impact on the final time-lapse interpretation in the reservoir interval.

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تاریخ انتشار 1998