US PATENT SUBCLASS 73 / 152.16
.~.~ With vibration measuring

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}
152.02  DF  .~ Formation logging (e.g., borehole studies of pressure derivatives or of pressure-temperature derivatives) {8}
152.16.~.~ With vibration measuring

DEFINITION

Classification: 73/152.16

With vibration measuring:

(under subclass 152.02) Subject matter including plural types of tests and wherein one of the tests makes a determination of a physical characteristic of the borehole, the casing, or the drill rigging by measuring an effect of the borehole, the casing, or the drill rigging on induced, reflected, or transmitted vibration.

SEE OR SEARCH THIS CLASS, SUBCLASS:

152.15, for determining a formation logging by plural tests including measurements of radiation and vibration.

152.32, for determining a rate of fluid flow within a borehole by measuring the effect of the rate of fluid flow on vibration.

152.47, for making a downhole measurement of a characteristic of a borehole, a casing, or a drill rigging by measuring vibration during drilling.

152.57, for determining a condition of a cementing in a borehole, per se, by measuring vibration.

152.58, for determining a physical condition of a borehole, a casing, or a drill rigging by making a measurement of vibration by an instrument located within the borehole.

570+, for measuring and testing, per se, by use of vibration. SEE OR SEARCH CLASS

181, Acoustics,

102+, for acoustic well logging.

367, Communications, Electrical: Acoustic Wave Systems and Devices,

25+, for the communication of information or intelligence in the form of acoustic waves traveling through earth and detected by electric signal handling means passing through a well bore and providing information pertaining to a characteristic or a location of discontinuities within the

earth, subclasses 81+ for the communication of information or intelligence in a well bore in the form of acoustic waves traveling in a medium in the well bore different from the surrounding earth and providing information pertaining to a characteristic or a location of discontinuities within the earth, and subclasses 86+ for the communication of information or intelligence in the form of acoustic waves traveling through earth detected by electric signal handling means passing through a well bore and providing information pertaining to a characteristic of the well bore or a location of discontinuities within the earth for electroacoustic borehole testing and wherein the intelligence pertains to the walls of the borehole and is obtained from a device which travels through the passageway and emits acoustic waves into a medium contained within the borehole (e.g., water, air, etc.) which are reflected from the walls back to the device and are detected.