1920X1080 Wfv Dp 2 85 Min
1920X1080 Wfv Dp 2 85 Min

Zonal control

Optimize productivity, maximize drainage

Zonal control

  • Applications
    Optimized production & maximized drainage
Welltec® Flow Valves (WFV) enable changing reservoir conditions over the life of well to maintain maximum well delivery.

Maintaining maximum well delivery

Oil and gas reservoirs with a high degree of rock heterogeneity created through complex depositional environments, diagenetic or structural overprint, demand well completion solutions enabling response to changing reservoir conditions over the life of well to maintain maximum well delivery.

A key distinction between more conventional lower completion solutions and the Flex-Well® is the ability to deliver compartmentalized and controlled flow to TD regardless of the lateral length, the flow being regulated by Welltec Flow Valves (WFVTM) with Dual or with Multi Position.       

The WFV with Multi Position provides the operator with the option of varying the differential pressure across the rock interface of each zone to balance out the difference in reservoir permeability. The Flex-Well will not only balance out heel toe effects but also control expected (or unexpected) permeability variance, along with water or gas breakthrough. 

Case highlight

Challenge
Zonal control

A client in West Africa had to change their objectives once the reservoir was penetrated, as sea oil shows in addition to expected gas...

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Modelling services

In specific projects flow modelling is used in the 3D design configuration of the WFV to ensure the benefits of zonal control.
In order to achieve a greater modelling capacity, Welltec has engaged with the consultancy practice Vysus Group (previous Lloyd’s Register). This collaboration provides Welltec with independent simulations using best-in-class industry modelling software and brings global experience involving similar well challenges.

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Products and services