Well WFV DP 00000 JPG

WFV™ – DP (Dual Position)

Welltec® Flow Valve - for Inflow & Injection Management

Introduction

The Welltec® Flow Valve is a full bore valve that can be used for both production and injection purposes within the lower completion, the rugged design enables rotation during liner deployment.

With specially designed inlets and sealing system, the WFV is qualified to open and close multiple times under differential pressure whilst maintaining flow, from both injection and production scenarios.

The full bore design makes it ideal for intervention-enabled completions and together with Welltec® Annular Barrier providing high pressure zonal isolation, the WFV forms an integral part of the Flex-Well® completion.

  • Challenge
    Zonal control
  • Applications
    Zonal control, inflow and injection management
Well WFV 360 00000
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Case highlight

CHALLENGE
Zonal control

An operator in West Africa expanded the objectives of their first well in a new field from producing first gas to producing first gas and first oil. This change in goals shortly before spudding ...

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Overview

FLOW VALVES ENABLING ISOLATION OF WATER /GAS BREAKTHROUGH:
• Full bore design provides smooth flow area to minimize delta P loss
• Coatings to minimize scale deposition
• Robust seal design for manipulation under delta P
• High burst, collapse and torque capability
• All variants can be combined with sand screens
DEPLOYMENT AND OPERATION:
• Shifting by Well Stroker actuation or drive by solution
• SRO confirmation of sleeve position
• Standard shifting profile
• Liner can be worked and rotated during deployment
AVAILABLE SIZES AND SPECIFICATIONS:
• From 2 7/8” WFV to 9 5/8” WFV*
• High temperature WFV available
• Materials fit to meet client specifications for pressure and tensile
• Product datasheet will be deliver for selected WFV
• Other sizes available upon request (lead times and feasibility to be determined)
Well WFV DP Vert 00000
Well WFV DP Hori 00000

APPLICATIONS

  • Applicable for wells in reservoirs with high potential for fractures.
  • Sequential zonal clean-up and production rotation
  • Manage bottom-up aquifer coning or gas cap cusping
  • Isolate later water/gas breakthrough in producers
  • Selective zonal injection / stimulation within injectors

FEATURES

  • Flow area exceeding base pipe cross section
  • ON - OFF slot design
  • Low profile with minimum impact on ECD
  • Full bore design provides unrestricted flow path to minimize delta P loss
  • Coatings to minimize scale deposition
  • Robust seal design for manipulation under delta P
  • High burst, collapse and torque capability
  • All variants can be combined with sand screens
  • High temperature WFV available

BENEFITS

  • No limitation on the quantity of WFVs per main bore or lateral
  • Materials to match completion and environment
  • Enabler for cementless completions in combination with the Welltec® Annular Barriers
  • Enables rotation during completion
  • Simple, reliable manipulation

SPECIFICATIONS

Base pipe size 3-1/2” 9-5/8”
Max. burst pressure 5,000 psi 10,000 psi
Max. collapse pressure 5,000 psi 10,000 psi
Max. diff. unloading pressure 1,500 psi 2,000 psi
Max. OD 4.57” 9.8”
Min. ID Full bore (as per base pipe)
Flow area range Up to 110% of casing bore x-sectional area