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SWLGS Luncheon Topics

Updated Nov. 8, 2007

Nov 8, 2007

Using Seismic Attributes and their Relationship to Productive and Nonproductive Wells in the Pursuit of Viable Drilling Targets

By    Charles Murphey, Landmark Graphics Corporation


Abstract Summary

The evolution of seismic attribute analysis has been a journey from Normal Move Out (NMO) velocity analysis in the 1940ís to Amplitude Versus Offset (AVO) analysis in the 1970ís to the advanced use of seismic trace attributes in the 1980ís.  Today, more than 50 seismic attributes can be calculated by using Landmarkís PostStack/PAL software.  By employing cross-plotting techniques and rank correlation matrices, you can quickly and easily identify quantifiable relationships between well and seismic attributes.  This presentation describes workflows for determining viable seismic and well attribute relationships.  Following these types of analysis, bypassed reserves can then be accurately located by mapping the relevant seismic attributes over your area of interest.

Biographical Sketch


Charles Murphy has over 25 years experience in the oil and gas business, Charles Murphey has worked in a number of positions in both upstream and downstream operations.  Charles completed his undergraduate education at Rice University in Houston with a double major in geology and political science, and received his masterís degree in geophysics from Southern Methodist University in Dallas.  His background includes geology, processing and interpretive geophysics, and cross-training in the business sector with natural gas marketing, technical selling and product commercialization.  Having worked for Amoco and Union Pacific Resources in the past, he currently holds the position of the U.S. Technical Sales Manager for Halliburtonís Landmark product service line.  Charles is known for emphasizing the value of integrated geological and geophysical workflows when visiting with geoscientists around the world and in his demonstrations at the annual AAPG and SEG conventions.