Marlim 3 Phase Subsea Separation System – Challenges and Solutions for the Subsea Separation Station to Cope with Process Requirements

摘要

This paper presents the experience brought from the oil-water subsea separator project developed for the Marlim field, known as SSAO Marlim. Here, it will be addressed the inherent arising challenges from a project of a subsea separation equipment, from the subsea mechanical design perspective, with special focus to the additional requirements to the normally presented in conventional subsea equipment for oil and gas production. It will be part of the discussion the architecture selected for the system and the main challenges imposed by: 1. Separation process (gas-liquid, liquid-liquid and sand removal system); 2. Requirements for modularization, installation and retrieval of subsea components; 3. Installation concept.