Measuring and testing – Borehole or drilling – During drilling
Patent
1997-05-06
2000-05-23
Larkin, Daniel S.
Measuring and testing
Borehole or drilling
During drilling
7315243, 7315258, 175 56, E21B 4700
Patent
active
060653329
ABSTRACT:
A method and apparatus for sensing and displaying the magnitude of torsional vibrations. A transducer provides a signal indicative of the torsional vibrations being experienced by a rotating member. The magnitude of the frequency components of the signal are determined and displayed to an operator who may take corrective action.
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Halliburton Energy Service,s Inc.
Larkin Daniel S.
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