Remote Characterization of Tight Gas Sand Formations with a New NMR Logging Tool

摘要

A new Nuclear Magnetic Resonance logging technique under development has characteristics which afford several operating and measurement advantages in tight western gas sand formations over existing nuclear magnetic logging tools. Among these are elimination of the need to condition borehole fluids prior to logging a hole, higher sensitivity per unit sample volume, shorter instrumental dead time, and potential for greater formation penetration. The new technique has been laboratory tested in tool geometry. A prototype tool utilizing permanent magnets is under construction and design has started on advanced tools using superconducting magnets. (ERA citation 06:016507)