Interactive interpretation is urgently needed to increase the productivity of the world's hard-pressed seismic interpreters. This paper describes the use of a system which displays seismic data in color on a television screen. The system is easy to use and, by managing the data base for the interpreter, permits him to spend a larger proportion of his time on the thoughtful process of interpretation itself. A 3D data volume can be studied in vertical

Figure

or horizontal section form. The system can equally well handle the irregular grid of data from a 2D survey.

In the course of interpreting a section on the screen, the interpreter may manipulate portions of that section in a variety of ways, making composite displays of multiple pieces, track horizons in automatic or manual modes and zoom portions of the data to any desired extent. Any interpretation made on one section can later be viewed on other sections marked at the points of intersection. Data can also be flattened to aid in structural and stratigraphic interpretations.

Various different data sets will be used to illustrate the capabilities of the system. Interpretive problems addressed will include: structural mapping, fault correlation, bright spot and flat spot delineation, and the study of depositional features.

End_of_Article - Last_Page 431------------