Rocks, fluids and numbers – some pitfalls discovered during a (continuing) career by John Owens.
Translating raw data into quantitative petrophysical parameters involves the use of “numbers”. However, are these numbers representative of the subsurface? Some “big picture” concepts are reviewed which are well known yet their consequences are often overlooked.
About John Owens
John Owens is Maersk Oil UK’s Petrophysics Discipline Lead. Prior to this he worked for Shell for twelve years. During the last six years of this time he was a member of their European Petrophysics Leadership Team and was Shell’s global Subject Matter Expert for HPHT formation evaluation as well as coring/core handling and core analysis. John has worked for DTI (now DECC) and has experience in mud logging, wellsite geology and operations geology. He has an M.Sc from Imperial College, is a Chartered Geologist and a Past-President of AFES.