Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science
Patent
1998-09-23
2000-03-14
Oda, Christine K.
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Earth science
702 16, G01V 140
Patent
active
060385138
ABSTRACT:
A downhole apparatus is provided for quickly and accurately estimating the ellipticity of an earth borehole during any drilling operation using circle-based calculations involving statistical analysis of distance measurements made by acoustic sensors. A corresponding method of estimating such ellipticity is also disclosed.
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Murphey Carey R.
Varsamis Georgios L.
Wisniewski Laurence T.
Dresser Industries Inc.
Oda Christine K.
Taylor Victor J.
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