دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a perforating gun run into the casing string. Most perforating guns are run into the well through the tubing string. casing hanger n: a circular device with a frictional gripping arrangement of slips and packing rings used to suspend casing from a casinghead in a well.

n: A device installed with shaped charge or bulletfor, used for casing perforating.

a large perforating gun, run into a well without tubing.

n: See casing gun.

n: The number of perforations per linear foot. This term is used to describe the configuration of perforating guns or the placement of perforations, and is often abbreviated to spf (shots per foot). An example would be an 8 spf casing gun.

shots per unit length.

n: difficulty in obtaining proper penetration with a tubing perforating gun in casing due to the casing guns lying against one side of the casing because of hole deviation.