دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a length of drill or line pipe, tubing, or casing shorter than range 1 (18 feet or 6.26 metres for drill pipe) in length.

n: a short section of pipe used tospace out casing or tubing to reach the correct landing depths.

a short section of casing or tubing used as a depth identifier to a collar locator log or used at the top of the well when spacing out a string prior to hanging the string.