Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science
Reexamination Certificate
2007-09-11
2007-09-11
McElheny, Jr., Donald E. (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Earth science
C324S339000
Reexamination Certificate
active
10843072
ABSTRACT:
A method and related system for correcting measurements obtained from an induction logging device. In one embodiment, the method comprises: receiving conductivity measurements from a multi-array induction tool; constructing a measurement pattern vector from the conductivity measurements; determining one or more geometry parameters associated with an approximation of the measurement pattern vector; finding borehole geometrical factors using current values of the one or more conductivity parameters and of the one or more geometry parameters; and calculating improved estimates of the one or more conductivity parameters using current values of the borehole geometric factors. The geometry parameters may be determined by finding a geometry pattern vector that best fits the measurement pattern vector. The determining, finding, and calculating operations may be repeated until a predetermined condition is satisfied. Finally, the conductivity measurements may be corrected for environment effects using calculated conductivity parameters and geometry parameters.
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Halliburton Energy Services Inc
Krueger Iselin LLP
Le Toan M.
McElheny Jr. Donald E.
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