Subsurface flow control SRH plug

Designed for use in extreme temperature and pressure environments

SRH high-pressure plugs are designed for use in extreme temperature and pressure environments. The top no-go plug is designed such that pressure from above and below is held by key/nipple engagement. Special non-elastomer V-packing stacks are gas-tight qualified up to 25,000 psi at 450°F.

SRH plugs are available in pump-through and positive type. The pump-through type incorporates a poppet that has a metal-to-metal seal backed up by an HP/HT non-elastomer V-packing stack. A metal-to-metal knockout plug is provided for equalization. A test prong can be run to convert the pump-through plug into a positive plug for testing from above. The two-trip prong-type plug is a positive plug with no pump-through feature. The packing on the prong uses the same type of HP/HT V-packing stacks as used on the plug body. The prong is pressure balanced for easy removal under high-pressure differential to allow for equalizing before retrieving the plug.

SRH Landing Nipples and Lock Mandrels

Tubing Size	Nipple Profile	Nipple Profile and Lock Mandrel
Tubing Size	Seal Bore	API 14L Validation
3 1/2	2.250	V2
	2.313	V2
	2.375	V2
	2.562	V2
4 1/2	3.125	V2
	3.250	V2
	3.375	V2
	3.500	V2
5 1/2	4.063	V2
5 1/2	4.188	V2

SRH Back Pressure Valves

Tubing Size	Nipple Profile
Tubing Size	Seal Bore	API 14L Validation
3 1/2	2.250	V1
	2.313	V1
	2.375	V1
	2.437	V1
	2.562	V1
4 1/2	3.125	V1
5 1/2	4.313	V1
5 1/2	4.688	V1

Features

Robust and simple uni-body style plug with one moving part (key expander) eliminates internal leak paths
V0-qualified high-pressure/high-temperature (HP/HT) non-elastomer seal stack
3 x 45º loading surfaces on key above and below, maximizing key bearing area
Up to 25,000-psi pressure rating at 450°F
Metal-to-metal shear plug for equalizing in pump-through type

Benefits

Bubble-tight seal performance at ultra-high pressures and temperatures
Key/nipple profile configuration provides ultra-high-pressure capability while minimizing component stress levels
All seals are inert to all known well fluids and are unaffected by rapid gas decompression
Pump-through plug type allows for well kill while installed in the nipple profile

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Subsurface flow controls

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High-pressure/high-temperature top no-go type SRH profile and plug

Designed for use in extreme temperature and pressure environments

SRH Landing Nipples and Lock Mandrels