Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Mechanical measurement system
Reexamination Certificate
2007-05-18
2010-10-26
Kundu, Sujoy K (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Mechanical measurement system
C702S002000, C702S005000, C702S007000, C702S013000, C702S014000, C702S016000, C702S035000, C702S036000, C367S128000, C324S219000, C324S222000, C324S334000, C324S345000, C324S346000, C324S347000, C324S348000, C324S349000, C324S350000, C324S351000, C324S352000, C324S353000, C324S354000, C324S355000, C324S356000, C324S357000, C324S358000, C324S359000, C324S360000, C324S361000, C324S362000, C324S363000, C324S364000, C324S365000
Reexamination Certificate
active
07822562
ABSTRACT:
Method for removing air wave noise from shallow water controlled source electromagnetic survey data, using only the measured data and conductivity values for sea water (140) and air. The method is a calculation performed numerically on CSEM data and resulting in an estimate of those data that would have been acquired had the water layer extended infinitely upward from the seafloor. No properties of the sub-sea sediments are used. Synthetic electromagnetic field data are generated for (a) an all water model (141) and (b) an air-water model (146-147) of the survey region. These simulated results are then used to calculate (148-150) electromagnetic field values corresponding to a water-sediment model with water replacing the air half space, which represent measured data adjusted to remove air wave noise.
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ExxonMobil Upstream Research Co.
Kundu Sujoy K
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