| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Electric logging | Mining | A. A technique in which electrical measurements are made, and recorded at the surface, while a series of electrodes or coils is caused to traverse a borehole. The resulting curves can be used for geological correlation, and, under favorable circumstances, for the recognition of some rock properties and for indicating the nature and amount of the fluids in the pores of the rock b. The act or process of taking resistivity, porosity, electrical anisotropy, etc., measurements in a borehole using an electromagnetic teleclinometer or other electrode device. Also called electrical logging. See also: self-potential log. (references) | |
| Electric logging tool | Mining | A tool attached to a cable which is lowered into a well to survey the borehole before it is cased. An electrical impulse is emitted which is reflected from the rock strata. The degree of resistance to the current allows geologists to determine the nature of the rock penetrated by the drill and some indication of its permeability, porosity, and content (gas, oil, or water). (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
