US PATENT SUBCLASS 702 / 12
.~.~.~.~ Fluid flow investigation

Current as of: June, 1999
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702 /   HD   DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING

1  DF  MEASUREMENT SYSTEM IN A SPECIFIC ENVIRONMENT {6}
2  DF  .~ Earth science {4}
6  DF  .~.~ Well logging or borehole study {5}
11  DF  .~.~.~ Formation characteristic {1}
12.~.~.~.~ Fluid flow investigation {1}
13  DF  .~.~.~.~.~> Hydrocarbon prospecting

DEFINITION

Classification: 702/12

Fluid flow investigation:

(under subclass 11) Subject matter comprising means for evaluating fluid flow controlling parameters or properties (e.g., porosity, permeability, etc.) related to the nature and movement of a flowing fluid in the well bore or from a potential producing zone in the earth formations.

SEE OR SEARCH THIS CLASS, SUBCLASS:

45+, for flow metering.

50+, for fluid measurement.

100, for calibration of fluid or flow measurement.

114, for testing of a pneumatic or hydraulic system.

SEE OR SEARCH CLASS

73, Measuring or Testing, 38, for porosity or permeability, and subclasses 152.18+ for flow study in borehole or drilling.

166, Wells,

252.5, for well processes which include determination of permeability or viscosity.

175, Boring or Penetrating the Earth,

50, for indicating, testing, or measuring a condition of formation.

364, Electrical Computers and Data Processing Systems,

528.17+, for flow control, and subclass 528.16 for fluid level or volume control.