دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the process of cutting a vertical, cylindrical sample of the formations encountered as an oilwell is drilled. The purpose of coring is to obtain rock samples, or cores, in such a manner that the rock retains the same properties that it had before it was removed from the formation.

n: The act of producing a sample of the formation being drilled for geological information purposes. Conventional coring is done by means of a core barrel put on the bottom of the drill pipe where the bit normally operates. As the cutter head of the core bar