دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

the inside annulus;tubing-by-production casing annulus. (Note, there may be regional differences in the A, B, C annulus designations and some are reversed. Inside annuli (IA) and outside annuli (OA) are more universally descriptive.)

adj: pertaining to the annulus. The annulus is sometimes referred to as the annular space.

using the annulus as the flow path.

Injection of fluids down the annulus or “backside”. Common as a gas supply path for gas lift. Also used in some fracturing operations, to spot fluids downhole when no packer is used or a type of injection valve is in the tubing to allow entry of chemicals

a device that seals the annulus to pressure or flow.

n: see annular space.

n: The space between a pipe and a hole. The space between drillstring and hole or casing is an Annulus.

The area between the O.D. of an inside string and the ID of an outside string.

the mechanism that provides pressure isolation between each casing hanger and the wellhead housing.