INTRODUCTION

Kvaerner Oilfield Products' (KOP) experience in deepwater development is present in projects wherever the word "deep" is mentioned around the globe Some of these projects were the first of their kind and due to their nature had always required our design approach to be flexible, innovative and able to adapt to various subsea environmental conditions

KOP deepwater systems typically consist of Xmas trees, manifolds and/or templates, control systems, umbilicals, intervention and be-in/connection systems

This presentation aims to describe these products and systems delivered or currently under manufacture at KOP for use in deepwater developments, highlighting their technical solutions and concepts

Deepwater intervention bands

Firstly, it is important to establish an intervention terminology in relation to the development design water depths

The proposed bands are subject to many variables, however, it serves as a preliminary guide to our approach to deepwater intervention At KOP, these are defined as follows(The Chart is available in full paper)

Current and past experience

KOP has designed a number of systems for deepwater Below is a bnef list of installed and current projects for reference(The Table is available in full paper)

DEEPWATER PROJECTS LAMINARIA SUBSEA PRODUCTION SYSTEM

The Laminaria and Corallina fields are located of the permit areas AC/P8 in Northern Territory waters in the Timor Sea, 550km WNW of Darwin. The fields will be developed using subsea completions and a monohull type Floating Production Storage and Offloading vessel (FPSO) permanently moored in approximately 385m of water and designed to remain on station without disconnection of its mooring for its 20 year life The field location and the proposed field layout and well locations are shown in the attached presentation overheads.

The base case development for the Laminaria Field is for 6 subsea production wells with expansion up to fourteen wells in total The base case for Corallina, which lies approximately 9 km west of Laminaria, is for two subsea production wells, with provision for a total of four wells

A single subsea gas injection well will be used for the disposal of excess gas and LPG, provisionally located approximately 6 5 km south-west of the FPSO

System Overview

The subsea system proposed for the Laminaria and Corallina fields is based upon the concept of convenhonal5 x 2 through bore Xmas Trees and cluster well manifolds Chokes and subsea control pods are to be housed in independent, diverless retrievable modules fitted in the manifolds, thus allowing the use of a simple tree design Each manifold choke and subsea control module will service two wells, minimising the size and weight of the manifold and facilitating installation by a range of vessels including DSV's

Due to the modular nature of the manifold design, it can be readily configured for 2,4, 6, 8 or up to 10 well cluster developments Future wells and/or manifolds can be ‘daisy chained’ from an existing manifold as required, allowing the initial development to be readily expanded

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