دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

compensated formation density log.

n: A kind of logging method by recording density of formation. It is different from density logging because it has two probes and can reflect more phenomenon about cake and irregularity of borehole face.

a dual spacing formation density log, using two detectors at different distances from the source.

a gamma-ray reaction in which the gamma-ray, after colliding with an electron, shifts some energy to the electron. The higher the energy loss by Compton scattering in a zone, the higher the electron concentration or density. The basis for the density log.

compensated spectral density log.

n: a logging companys name for a density log.

n: a special radioactivity log for open-hole surveying that responds to variations in the specific gravity of formations. It is a contact log (i.e., the logging tool is held against the wall of the hole). It emits neutrons and then measures the secondary gamma radiation that is scattered back to the detector in the instrument. The density log is an excellent porosity-measure device, especially for shaley sands. Some trade names are Formation Density Log, Gamma- Gamma Density Log, and Densilog.

one of a number of logging techniques that estimate the density of the formation.

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

formation density log.

n: trade name for a density log.