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WR-SCSSSV FRN 2-7/8 inch

WR-SCSSSV FRN 2-7/8 inch

WR-SCSSSV FRN


Ook bekend als:

wrscsssv, wrscssv, wr-scsssv, wireline retrievable safety valve

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Air Freight

Titel:

WR-SCSSSV FRN 2-7/8 inch

Model Nummer:

FRN

Beschikbaarheid:

Made to Order

Levertijd (weken):

3 weeks

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Specificaties

Transactie Type

Buy

Staat

New

Gewicht

less than 100 kg

Locatie

United States

Bedrijfstype

Product Provider

Kwaliteitsgarantie

API

Prijs

Request for Quote Based on specifications

Materiaal

Steel

Merknaam

Halliburton

Verzending

Air Freight

Notities

The FRN wireline-retrievable flapper valve, which is normally closed, is held open by hydraulic control pressure from the surface.

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Over dit artikel

  • Minimal hinge-pin stress during opening and closing cycles
  • Working pressures up to 12,500 psi (862 bar)
  • Allowable setting depths up to 9,000 ft (2743 m)
  • Pump-through capability built into the valve design
  • Compatible with Otis® X®, R®, RQ, RPV, and SAFETYSET® lock mandrels and with Halliburton tubing-retrievable safety valves in depth ratings and material selections

Beschrijving

The FRN wireline-retrievable flapper valve, which is normally closed, is held open by hydraulic control pressure from the surface. The valve operates on a hydraulic-piston principle. To open, tubing pressure slightly higher than the well pressure below the closed flapper is applied. Once well pressure is equalized across the closed flapper, hydraulic pressure is applied to the piston, which pushes the flapper open. The flapper hinge assembly is designed so the force on the piston is not applied directly on the hinge pin. Upon loss of hydraulic pressure in the control line, the valve's large spring serves to lift the hydrostatic head of the control fluid. The flapper spring is designed to close the valve when the piston moves up past the flapper. Opening Prong Nose Seal The FRN valve uses the valve housing as the downstop for the opening prong. This metal-to-metal (MTM) interface is designed to prevent flow from passing between the valve housing and opening prong. The MTM interface isolates the flapper and seat from fluid flow while the valve is open. This design creates an MTM interface with the full force exerted by the hydraulic piston, minus the spring compression force, holding the two metal faces in contact. Radius of Curvature at Flow Entrance Halliburton conducted a study with various curvatures on the entrance to the valve. The study tested abrasive fluids flowing through different test subs and examined the resulting wear patterns. As a result, an optimum radius of curvature was determined and implemented on the valve housings of all wireline retrievable safety valves. Applications » New completions » Deep set » High pressure Features » High-strength rod-piston actuation » Non-equalizing flapper closure » Solid construction flapper made from bar stock » Spherical radius seat on flapper improves seal reliability » Sealing and seating surfaces are out of flow path of well production when valve is in open position » Designed for easy field servicing *information referenced from supplier catalog.


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