Offshore/subsea systems

Lucius Subsea-Production-System Design and Installation

This paper describes the architecture of the Lucius Gulf of Mexico subsea production system and the drivers behind it.

jpt-2015-08-fig1luciussubsea1.jpg
Fig. 1—Three 8-in. jumpers prepared for shipping to the installation vessel.

This paper describes the architecture of the Lucius Gulf of Mexico subsea production system and the drivers behind it.  Novel technologies are detailed, and innovative installation techniques and highlights are described, including a “strong-back” system for rigid jumpers.  Difficulties and lessons learned are also shared.

Introduction

The Lucius field is located in water depths ranging from 6,800 to 7,100 ft. Lucius has been developed with six initial subsea wells split between two 8-in.-nominal production loops, each with a six-well manifold. The system is designed for a maximum-allowable operating pressure of 9,300 psi. An early discovery well is located away from the well clusters and is daisy chained into the west-­manifold flowline loop.

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