Home ]


SWLGS Luncheon Topics

Updated September 8, 2009

September 8, 2009

Does Logging-While-Drilling Provide All the Data You Need?


Paul Boonen 

Abstract Summary

The LWD industry’s arsenal of measurements is fast approaching the entire range of what the wireline logging industry provides. The standard triple combo – gamma ray, resistivity and density-neutron – has become a commodity in LWD. Sonic logs have been around since the mid 90’s. Density images are common, electromagnetic images are being commercialized. Nuclear Magnetic Resonance tools are available. Formation pressure testing tools now start providing sampling capabilities.


For a geophysics oriented audience, we’ll explore the state-of-the-art in LWD sonic logging and its applications. While the majority of LWD sonic logs are still run for seismic time-to-depth correlation, we are seeing more and more runs for pore pressure prediction, geomechanical analysis, porosity in the absence of radioactive sources and natural fracture identification in carbonate reservoirs.


We’ll also spend a bit of time on fundamental differences between LWD and wireline logs and applications. Geosteering is a prime example of an application that is specific to LWD.




Biographical Sketch


Paul Boonen is the Chief Petrophysicist at the Smith-PathFinder R&D Center in Houston, TX. He earned a Ph.D. in geology from the University of Leuven in Belgium. His career spans positions as wellsite geologist and wireline logging engineer, computing center manager and interpretation development log analyst to chief petrophysicist. He lived and worked in multiple countries in Europe, Africa, Far East and the America's. His current interest focuses on applications of LWD data (mainly resistivity, nuclear and sonic). Dr. Boonen has authored and co-authored over 50 technical publications. He is a member of SPWLA, AAPG and SPE.