Radiant energy – Geological testing or irradiation – Well testing apparatus and methods
Reexamination Certificate
2007-07-20
2009-08-11
Porta, David P (Department: 2884)
Radiant energy
Geological testing or irradiation
Well testing apparatus and methods
C250S269300
Reexamination Certificate
active
07573027
ABSTRACT:
A photoelectric factor (PEF) that is corrected for standoff effects is obtained from measurements made with a single detector. A first PEF is obtained using a first pair of soft and hard windows and a second PEF is obtained using a second pair of soft and hard windows. Additional correction to the PEF may be made using a formation density measured by the logging tool.
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Baker Hughes Incorporated
Madan & Sriram, P.C.
Porta David P
Vu Mindy
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