دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a small hydraulic line used to run fluid from the surface to a downhole tool, such as a subsurface safety valve.

a small diameter line, usually attached to the outside of tubing, which controls the ScSSV or other downhole tools.

abbr: emergency shut down, an automated platform system to shut in an SCSSV and/or SSV.

emergency shut-down.

abbr: surface-controlled subsurface safety valve.

surface controlled subsurface safety valve.

< 900 scf/hr.

n: a tubing safety valve.

A flow controlled shut-in device to control flow in the event of loss of surface well control. Must be reset periodically. Replaced by ScSSVs.

a safety valve controlled from the surface through hydraulic or electrical power.

tubing retrievable surface controlled subsurface safety valve. May also be referred to as a ScSSV or DHSV.