A Borehole Acoustic Reflection Survey (BARS) was acquired in an exploration well for Norsk Hydro in the Norwegian North Sea in 2006. The objective of a BARS survey is to use acoustic energy reflected by inhomogeneities in the formation to create high resolution images of the formation surrounding the borehole. The survey was done using the Sonic Scanner tool, and delivered acoustic images with 2-3 orders of magnitude higher resolution compared to conventional seismic images.
The presentation will give an introduction to the sonic measurement, present some of the processing steps, and will finish off with the results and conclusions made from this first dataset.
Rune works as Borehole Seismic Geophysicist with Schlumberger Data and Consulting Services. He graduated from University of Bergen in 2004 with an M.Sc degree in Petroleum Geophysics and has been working for DCS since then. His primary role has been VSP processing and currrently he is involved in developing and applying the BARS technique.