High definition drilling rate of penetration for marine drilling
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United States of America Patent
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Dec 22, 2015
Grant Date -
Jul 25, 2013
app pub date -
Jan 15, 2013
filing date -
Jan 23, 2012
priority date (Note) -
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Abstract
Two sensors may be installed on a marine drill to improve measurements used for monitoring and operating the marine drill. The sensors may be installed in a differential configuration with one sensor located on a top block of the marine drill and a second sensor located on a drilling floor of the marine drill. Various calculations may be performed using measurements obtained from the two sensors such as, for example, rate of penetration of the marine drill, drilling level bubble for the marine drill, out of-straightness values for the marine drill, and vibration motion for the marine drill.
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