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SS Processing and Flow Assurance
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Subsea Processing and Flow Assurance FMC Brazil
SS Processing and Flow Assurance
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Why Subsea Processing? - Topside de-bottlenecking - Extend brownfields production cycle - Increase oil recovery - Subsea autonomous separation and
production - Overall energy consumption
Energy in Energy out
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Subsea Processing History Statoil Tordis (2007) • Water and sand are separated for subsea injection into
storage reservoir • Water depth of 200 m
Total Pazflor (2011) • Gas/liquid separation • Production from 25 wells, injection into 22 water
injection wells and 2 gas injection wells • Four different reservoirs (max water depth 1200m) • 3 subsea gas/liquid separation systems
Pazflor
Tordis
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Marlim water-oil separator Marlim SSAO (Water Oil Subsea Separator) is installed at a water depth of 870 m, 300 m from the production subsea well and 1750 m from the water injection well
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Marlim water-oil separator
Production well
MRL-141
Injection well MRL-211
P-37
Operation pressure: 52 – 59 kgf/cm2
Shut in pressure: 145 kgf/cm2
Temperature: 50 – 60°C Sand: 10 – 100pm
SSAO
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Boosting Systems - Portfólio
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More powerfull pumping: Accelerate production now.
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Shell
. BC-10 and Bijupirá & Salema: thermal design (e.g. thermal insulation)
Petrobras
. Mexilhão, Tambaú, RO-III: thermal design (e.g. thermal insulation)
. Marlim SSAO: full FA study, operation philosophy and assisted operation support
. Pre-Salt: thermal analysis, flow regime analysis, MEG injection study (WAG system)
Repsol
. Carioca Field: field layout screening
Chevron
. Frade: full flow assurance study
Flow Assurance - main activities
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FA Activities - Examples Shell BC-10 – Thermal Analysis
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• FMC assisting Petrobras in the operation of the system (“off-line mode”) • Very complex system • Operational problems demanding prediction / quick actions
Marlim SSAO: from offline to online / Real Time Operation
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• FlowManager to establish real time operation of the system related to: - Flow assurance issues - Process controls advanced controls optimization - Measurements validation - Virtual Flow Metering - Water injection optimization
Marlim SSAO: from offline to online / Real Time Operation
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FA Activities - Examples R&D – Thermal Management System
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Subsea Processing and FA Technology... answers How can we… • increase uptime? • maximize efficiency? • decrease lead time? • make sure it works from day zero? • lower total ownership cost?
Typical production cycle
Anticipate and increase production, with no hiccups