Battelle Energy Alliance, LLC

Rodney O Mathewson

Blair K Grover

Don T Clark

Craig A Seymour

William L Casper

Chris Casper, Legal Representative

A drill string comprises a first drill string member having a male end; and a second drill string member having a female end configured to be joined to the male end of the first drill string member, the male end having a threaded portion including generally square threads, the male end having a non-threaded extension portion coaxial with the threaded portion, and the male end further having a bearing surface, the female end having a female threaded portion having corresponding female threads, the female end having a non-threaded extension portion coaxial with the female threaded portion, and the female end having a bearing surface. Installation methods, including methods of installing instrumented probes are also provided.

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Idaho Falls, ID, United States of America

Rodney O Mathewson