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Title: Drill-pipe severing tool with high-temperature explosive

Technical Report ·
DOI:https://doi.org/10.2172/5093575· OSTI ID:5093575

A special-purpose borehole explosive tool designed to meet a need of the Los Alamos National laboratory Hot Dry Rock (HDR) Geothermal Energy Development Program is described. This tool's particular purpose is to sever stuck drill pipe in deep (> 4500 m), hot (> 320/sup 0/C), water-filled wellbores. No commercial severing tools are known to us that can be operated at temperatures above 260/sup 0/C.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
5093575
Report Number(s):
LA-9483-MS; ON: DE82021839
Resource Relation:
Other Information: Portions of document are illegible
Country of Publication:
United States
Language:
English