دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the adjustment or standardising of a measuring instrument or of a standard capacity measure, a tank prover, or a pipe prover. Log calibration is based on the use of a permanent calibration facility of the American Petroleum Institute at the University of Houston to establish standard units for nuclear logs.

comparison to a standard and adjustment to fit.

n: The special nuclear logging reflecting The changes of formation density, used for openhole. A effective method of measuring porosity of formation.

n: see radioactivity log.

radioactivity log.

n: (PDC log) a special type of nuclear log that measures the depth of each casing collar. Knowing the depth of the collars makes it easy to determine the exact depth of the formation to be perforated by correlating casing-collar depth with formation depth.

n: a record of the natural or induced radioactive characteristics of subsurface formations. Also called nuclear log. See radioactivity well logging.

n: the recording of the natural or induced radioactive characteristics of subsurface formations. A radioactivity log, also known as a radiation log or a nuclear log, normally consists of two recorded curves: a gamma ray curve and a neutron curve. Both help to determine the types of rocks in the formation and the types of fluids contained in the rocks.