دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

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.

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

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 kind of logging method in which the layer situation is detected ,Usually refers to the natural gamma logging but sometime refers to density logging,neutron Brons logging,neutron lifetime logging