David Allen is a Petrophysics Advisor the Schlumberger Sugar Land Product Center. From 1999 through 2005 he lead the effort on Carbonate Case Studies at Schlumberger-Doll Research. Since then David has remained involved with studies to develop new methods for carbonate petrophysical analysis. David received a B.S. in Physics and a B.A. in Economics from Beloit College in 1978 and joined Schlumberger as a field engineer in 1979. From 1995 to 1997 David was the chief petrophysicist for Schlumberger Wireline & Testing. He received Best Paper awards from the SPWLA for a 1987 paper on invasion and a 1997 paper on resistivity anisotropy.

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