METHOD OF PROCESSING DATA FROM A DUAL DETECTOR LWD DENSITY LOGGING INSTRUMENT COUPLED WITH AN ACOUSTIC STANDOFF MEASUREMENT
摘要
A logging-while-drilling density sensor includes a gamma ray source and at least two Nal detectors spaced apart from the source for determining measurements indicative of the formation density. An acoustic caliper is used for making standoff measurements of the Nal detectors. Measurements made by the detectors are partitioned into standoff bins. An adaptive spine and rib method uses the standoff measurements to obtain density estimates. The method of the invention may also be used with neutron porosity logging devices.
申请公布号
WO03085419(A1)
申请公布日期
2003.10.16
申请号
WO2003US10167
申请日期
2003.04.03
申请人
BAKER HUGHES INCORPORATED
发明人
SCHNEIDER, DAVID, M.;EFREMOV, SERGEY, V.;SALE, MATTHEW, J.