Well logging apparatus with replaceable sensor carrying insulating sleeve disposed in rotation restrained position around a drill string
作者： John D. Jeter , Henry S. More
DOI:
关键词: Drilling 、 Rotation 、 Engineering 、 Structural engineering 、 Well logging 、 Drill string 、 Mechanical engineering 、 Position (vector)
摘要: A replaceable insulating sleeve is disposed around the lower end of a drill string used in drilling well. The restrained from rotating relative to string, but can be released and quickly slipped off field permit rapid replacement if damaged, or alternate equipment required. carries sensing means for measuring characteristic formations penetrated by
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