INTRODUCTION

‘Intelligent’ (or ‘smart’) well technology has developed such that they it is increasingly being considered for new oil and gas field developments. These wells can be especially attractive for subsea developments, where the cost of well intervention is very high. In these cases, the subsea production control system is required to host the 'third party intelligent well control equipment. The equipment for such wells places more demands on power, communication and physical space on sub-sea systems which have already been developed to optimise both space and power requirements.

Within many smart well and sub-sea system suppliers the market, it was recognized that efforts to standardise interfaces would be required to avoid costly custom designs and so deliver equipment at an acceptable cost and delivery time. Early projects indeed experienced such problems

IWIS is a joint oil and gas industry standardisation initiative, formed to improve the interfaces between intelligent wells, sub-sea systems and surface systems

The IWIS ‘Industry Panel’ (Joint Industry Working Group) A group of representatives from three distinct communities

  • oil and gas field operators

  • sub-sea control system suppliers and

  • Intelligent well equipment suppliers

who wish to improve and develop the way intelligent well equipment interfaces to the supporting sub-sea process control system The group is managed by an and independent consultant

The Operators

BP, ChevronTexaco, ENI-Agip, Norsk Hydro, Petrobras, Shell, Statoil, TotalFinaElf

The Subsea equipment suppliers

ABB Offshore Systems, Cameron Controls, FMC Kongsberg Subsea, Kvaerner Oilfield Products

The lntelligent Well/Downhole equipment suppliers

Baker Oil Tools. Expro Group, Roxar Production Management, Schlumberger, Triangle Engineering, Weatherford Completion Systems, WellDynamics, Wood Group Production Technology.

The Management Consultant

Offshore Technology Management Ltd

The Aim of IWIS

The aim is to agree standard requirements for interfacing and integration of such systems, to avoid costly, custom made interfaces.

This will be achieved by agreeing standard requirements for-

  • physical integration of intelligent well equipment into sub-sea control systems

  • Intelligent well power & communication with the sub-sea control systems testing the equipment

This will allow intelligent wells to be more cost effectively, quickly and reliably integrated into both sub-sea and surface production systems.

The Operator's Vision

Operators will monitor data from an integrated production system, from down-hole sensors and control devices,(the intelligent well), the sub-sea production control system as well as surface facilities. The integrated system can be then be analysed and adjusted to optimize overall reservoir, well and facility performance, ideally without well or sub-sea intervention

The Supplier's Vision

Suppliers will offer a standard intelligent well / sub-sea system interface, greatly reducing the variety of types of interface they have to develop and support. This will lead to lower costs and shorter delivery times, making project proposals more attractive, leading to more projects The standard interface can be refined to improve performance and/or reliability. Suppliers will be able to contribute to improving life-cycle benefits of the well and sub-sea equipment, for ex ample providing monitoring diagnostic and support services post-cominissioning

IWIS Group Activities

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