US PATENT SUBCLASS 73 / 152.42
.~.~ Determining relative proportion of fluid constituent

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

152.01  DF  BOREHOLE OR DRILLING (E.G., DRILL LOADING FACTOR, DRILLING RATE, RATE OF FLUID FLOW) {6}
152.18  DF  .~ Fluid flow measuring or fluid analysis {6}
152.42.~.~ Determining relative proportion of fluid constituent

DEFINITION

Classification: 73/152.42

Determining relative proportion of fluid constituent:

(under subclass 152.18) Subject matter wherein the determination of the physical characteristic of the borehole, the casing, or the drill rigging is made by measuring the amount of a constituent of a fluid within the borehole or a ratio of one constituent of a fluid to another constituent of the fluid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

19.09, for measuring the gas content of drilling mud.

61.43, for liquid analysis for a liquid constituent of a liquid mixture.

863.21+, for the separation of constituents of a liquid sample not in a well.

SEE OR SEARCH CLASS

210, Liquid Purification or Separation, appropriate subclass for the separation of liquid constituents of a mixture.