US PATENT SUBCLASS 73 / FOR 100
BORE HOLE AND DRILLING STUDY (73/151)


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

FOR 100BORE HOLE AND DRILLING STUDY (73/151) {3}
FOR 101  DF  .~> Drill depth-rate (73/151.5)
FOR 102  DF  .~> Formation logging (73/152) {2}
FOR 105  DF  .~> Fluid intrusion, theft of flow study (73/155)


DEFINITION

Classification: 73/FOR.100

Foreign art collection for investigating physical conditions

of well bores, casings and drill rigging, such as misalignments, stuck pipe sections, drill loading factors, determination of the proper placement of liners, determining the rate at which drilling is proceeding, etc.