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Development of a High-Temperature Diagnostics-While-Drilling Tool

Blankenship, Douglas A.; Chavira, David C.; Henfling, Joseph A.; King, Dennis K.; Knudsen, Steven D.; Polsky, Yarom P.

This report documents work performed in the second phase of the Diagnostics While-Drilling (DWD) project in which a high-temperature (HT) version of the phase 1 low-temperature (LT) proof-of-concept (POC) DWD tool was built and tested. Descriptions of the design, fabrication and field testing of the HT tool are provided.