Seismic Data Interpretation in the Exploration Domain
by Tim E. Smith
Duration: Two days
Intended Audience: Intermediate level
Prerequisites: This course is primarily designed for explorationists/earth scientists who are advanced students, larger company personnel with 1 to 5 years of experience, and independent operators. The overall experience is directed towards optimization of seismic interpretation with regard to highly variable budgets and increased expectations in the current hydrocarbon pricing environment.
This two-day course provides a robust background in both the fundamentals and advanced aspects of 2D and 3D reflection seismic interpretation. It is divided into two essentially equal portions: the first consists primarily of lectures and associated exercises, and the second consists of 2D and 3D seismic interpretation projects designed to illustrate many of the concepts and techniques of seismic interpretation discussed in the lecture portion. The interpretation exercises use paper data because direct hands-on methods provide the best overall educational experience. They also avoid problems of non-familiarity with various software packages and licensing issues. The interpretation techniques which are demonstrated and employed in these exercises can later be effectively transposed to the workstation environment.
Topics covered in the lecture portion include the following:
The interpretation portion consists of two projects. The first consists of 6 2D lines from a complex structural region. This exercise involves tying these data with recognition of the limitations associated with the 2D format. The second consists of 15 lines from a 3D project covering the same region; some of the 3D lines overlie the 2D data and provide direct comparison between the two data sets. These data are used to prepare a structure contour map; and the exercise and course end with a discussion of this map and the overall set of processes used in effective seismic interpretation.
At the end of the course participants will be able to