US PATENT SUBCLASS 73 / FOR 103
.~.~ By drill mud or core analyst (73/153)

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

FOR 100  DF  BORE HOLE AND DRILLING STUDY (73/151) {3}
FOR 102  DF  .~ Formation logging (73/152) {2}
FOR 103.~.~ By drill mud or core analyst (73/153)

DEFINITION

Classification: 73/FOR.103

Foreign art collection for correlating depth with occurrence of representative sample obtained from the formation, with conventional means or procedure for inspecting or analyzing the sample for its oil-gas-water content or ratio.