دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a stressed-steel corrugated tube that is lowered into existing casing in a well to repair a hole or leak in the casing. The patch is cemented to the casing with glass fibre and epoxy resin.

n: A downhole assembly or tool system used in the remedial repair of casing damage, corrosion or leaks. Casing patches are most frequently used as short- to medium-term repairs that enable production to be resumed until a major workover operation is schedule

n: a spring-actuated metal band or ring (ferrule) used to expand a liner patch when making casing repairs. See liner patch.

n: A kind of metal liner actuated by spring .