US PATENT SUBCLASS 181 / 105-- .~.~ Bore hole or casing condition

US PATENT SUBCLASS 181 / 105
.~.~ Bore hole or casing condition

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999 Terms of Use

181 /	HD	ACOUSTICS

101	DF	GEOPHYSICAL OR SUBSURFACE EXPLORATION {5}
102	DF	.~ Well logging {4}
105		.~.~ Bore hole or casing condition

DEFINITION

Classification: 181/105

(under subclass 102) Subject matter for investigating

physical conditions of well bores and casings, such as obstructions, bore surfaces, etc.

SEE OR SEARCH CLASS

73, Measuring and Testing,

152.01+, for a determination of a physical characteristic of a borehole by making a measurement which is not purely electrical or purely magnetic and subclass 152.57 for a determination of a physical characteristic of a casing or a cementing by making a measurement which is neither purely magnetic.