Drill Stem Testing Tools Super Safety Valve
Super Safety Valve
Application: Drill Stem Testing
Overall length w/handing sub: 142.65"
Valve section length: 50.90"
Ram lock: 5.0" OD x 18.0" LONG
Valve body OD: 8.0"
Handing subOD: 8.16"
The Super Safety valve (SSV) is a master valve used for testing
operations from jack-up or land rigs. The SSV is installed in the
test string so that a BOP ram can be closed on the ram lock sub
located in the top section of the valve. The annulus is then
protected by the BOP rams, and the test string is protected by the
safety valve. The Super Safety valve is capable of cutting wireline
and 1.5-in. coiled tubing. If equipped with a cutter ball, it is
capable of cutting 2-in. OD, .125-in. wall coiled tubing using a
nitrogen dome charge or by applying balance line pressure
Features and Benefits
The Super Safety valve is controlled by two hydraulic lines and
contains a chemical injection port for injecting chemicals at the
valve body further downhole to an injection sub or to actuate a
subsurface safety valve. The valve is held open by maintaining
hydraulic pressure on the control line. The valve is designed to
close by spring force but incorporates a nitrogen dome charge
chamber to provide increased closing force and to lessen the time
required for closing. This feature gives the valve the ability to
cut wireline and coiled tubing without adding balance line
pressure.
• Normally closed/fail-safe
• Maintains pump-through capabilities at all times
• Nitrogen dome charge for fast response
• Capable of cutting 1.5-in. coiled tubing, or if equipped with a
cutter ball 2-in. OD, .125 in. wall thickness coiled tubing
• Small 8-in. OD fits inside 9 5/8-in casing
Specifications:
1. Halliburton type, all could change with Halliburton parts.
2. All equipments are produced according to API standard NACE
MRO175-2002
