Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports
Patent
1982-08-23
1985-01-15
Strecker, Gerard R.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
Using electrode arrays, circuits, structure, or supports
73152, 175 40, 175321, 324356, 324369, G01V 318, E21B 4900, E21B 1702
Patent
active
044940726
ABSTRACT:
A replaceable insulating sleeve is disposed around the lower end of a drill string used in drilling a well. The sleeve is restrained from rotating relative to the drill string, but can be released and quickly slipped off the drill string in the field to permit rapid replacement if damaged, or if alternate equipment is required. The sleeve carries sensing means for measuring a characteristic of formations penetrated by the well.
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Jeter John D.
More Henry S.
Exploration Logging, Inc.
Strecker Gerard R.
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