Program Overview
It covers the basics of velocity estimation, quality control, and depth conversion. The course is designed for those with a basic understanding of geophysics.
Program Outline
However, wells are drilled in depth, not time. Variations in velocity can distort the depth, size, and shape of possible reservoirs. conversion from time to depth is needed for a clear picture of the prospect and the risks involved. In the last decade or two, large strides have been made in seismic processing, especially in PreStack Depth Migration. Routinely used advanced migration algorithms now require more accurate velocity models. Better tools have been developed to ascertain the velocity, and more time and effort are now spent in velocity analysis by the seismic processors. This has greatly improved current velocity models. This class is designed for the interpreter so that he or she understands the theory and practice of how to estimate depths from older time-migrated data, as well as how to quality control (QC) and calibrate newer PSDM data. As a foundation class, the instruction starts with the basics and proceeds to more complex topics. The student should have a basic understanding of geophysics such as offered in PetroSkills' Basic Geophysics course. Little advanced math (calculus) is used, but algebra and lots of diagrams are applied to explain the needed concepts. "Vivid presentation of the topics, complicated problems were explained very well and easy to understand."
- Participant, Germany This is a foundation level course. It is neither designed nor paced for the experienced velocity modeler or processor.
- Understand the various types of velocities, their calculation, and the validity of their interpolation and extrapolation
- Compare, quality control, smooth, and combine the various velocity types into an integrated velocity model
- Validate model quality by examining the changes in velocity needed to tie the seismic
- Understand at an introductory level, how velocity models are used for other studies such as forward modeling and pore-pressure prediction
Other:
- This course is also available upon request as a private, on-site seminar.
- This is a foundation level course. It is neither designed nor paced for the experienced velocity modeler or processor.
- The student should have a basic understanding of geophysics such as offered in PetroSkills' Basic Geophysics course.
- Little advanced math (calculus) is used, but algebra and lots of diagrams are applied to explain the needed concepts.
