دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a record showing variations in wellbore diameter by depth, indicating undue enlargement due to caving in, washout, or other causes. The caliper log also reveals corrosion, scaling, or pitting inside tubular goods.

n: A tool run on wireline that measures the diameter of the wellbore. It may be used for detecting washouts, calculating cement volumes, or detecting internal corrosion of casing.

a recording of the diameter changes in a well made by a tool with mechanical arms that touch the wellbore or a sonic signal bouncing off the borehole wall.

n: See caliper log.

n: See caliper logging.

n: Logging in the cased hole, for example, cement bond log, casing caliper log, casing coupling log and other well loggings.

n: The borehole log formed by the cal measuring CID.

n: a density log in which a gamma ray log, a Densilog, and a caliper log are recorded simultaneously.

n: one combination logging which record curve of gamma-ray logging、density logging、caliper logging，is used to compare。

n: a special caliper log combined with a MicrologTM. See caliper log, MicrologTM.

n: the recording of subsurface characteristics by wire line (actually conductor line) tools. Wireline well logs include acoustic logs, caliper logs, radioactivity logs, and resistivity logs.

A continuous measurement of formation properties with electrically powered instruments to infer properties and make decisions about drilling and production operations. The record of the measurements, typically a long strip of paper, is also called a log.