دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a flat bottom, short steel tool run on wireline to tag the surface of water or solids in the well. It is nearly the drift diameter of the tubular.

n: 1. in drilling, the effective hole size. 2. in casing, the guaranteed minimum diameter of the casing. The drift diameter is important because it indicates whether the casing is large enough for a specified size of bit to pass through.

the published drift diameter for a pipe that describes the diameter of a tool that can pass through the pipe when the pipe is vertical (no doglegs).

n: a tool used to examine the casing which can pass the inner dimeter

n: the permitted diameter of the drill tools when the preventer is set in the well head

n: refer to drift diameter gauge

n: a fitting placed in the blowout preventer stack to provide space between preventers for facilitating stripping operations, to permit attachment of choke and kill lines, and for localizing possible erosion by fluid flow to the spool instead of to the more expensive pieces of equipment.

n: a kind of link with flange or keeper on each , and its inner diameter equals to the drift diameter at least




a section of the BOP that allows side ports for choke and kill lines.