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IntsokIntsok –– Navigating Deepwater Navigating Deepwater –– Houston 26 Feb, 2014Houston 26 Feb, 2014
Flexible Subsea StorageFlexible Subsea Storage UnitUnitFlexible Subsea Storage Flexible Subsea Storage Unit Unit An Enhancing Technology for Remote An Enhancing Technology for Remote and and Marginal Marginal Fields in Fields in Any Any Water DepthWater Depth
KONGSBERG PROPRIETARY: This document contains KONGSBERG information which is proprietary and confidential. Any disclosure, copying, distribution or use is prohibited if not otherwise explicitly agreed with KONGSBERG in writing. Any authorised reproduction in whole or in part, must include this legend. © 2014 KONGSBERG – All rights reserved.
Jens P. Kaalstad, Kongsberg Oil and Gas Technologies Inc.
Industrial pioneer established in 1814
05.03.2014 WORLD CLASS - through people, technology and dedication Page 2
KONGSBERG has a unique history and a strong culture
Today: International high-tech solutions,y gfrom deep sea to outer space
Advanced solutions and applications for the maritime, oil & gas, defence and space industry.
- Extreme Performance for Extreme Conditions -
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Focus on technology leadership forms the gy pbasis for our international growth
Merchant Shipping
10 %
Other: Space, Fishery,
Research, Public 8 %
Defence(Norway and international)
Offshore / Oil and Gas
32 %
More than 10% of revenue is spent on Innovation and Product DevelopmentMore than 10% of revenue is spent on Innovation and Product Development
international) 50 %32 %
More than 10% of revenue is spent on Innovation and Product DevelopmentMore than 10% of revenue is spent on Innovation and Product Development
Flexible Subsea Storage Unit Development g psupported by Norwegian Research Council, Statoil, Lundin & Det Norske.
Subsea Storage Concept Oil / Water physical fluid barrier
Patented
• Not affected by severe weather diti
• Flexible Bag – no emulsion l i kconditions
• Low OPEX• Flexible• High Cash flow
layer risk• Double barrier against Oil spill• Integrated Leak detection
systemg Cas o syste• No need to design against
seabed pressure
Flexible Subsea Storage Unit - SSUBasic Principles
Oil
Seawater
Empty Half full Full
► Discharging by hydrostatic pressure
► No personnel required
► No or little energy used for heating, transport, ballasting etc.
► Submerged and protected from collisions and bad weather
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► No VOC* emission (No ventilation to air)
* VOC – Volatile Organic Compound;
SSU - Loading and OffloadingSystem description - topside processing
Production/process
RiserManifold Instrumentation
Protection structureHatchFlexible bag
1,5 – 3 km
Metering Booster pump if requiredOffloading Instrumentation g
Instrumentationg
Instrumentation
Riser for loading Offloading SystemSSU system
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y
SSU - Base Case Design
Hatch with Protection Structure
Base Case Size: • 125,000 barrels• 42m diameter• 30m height • Hatch is replaceable and integral with the
flexible bag• Sensors and valves placed in the hatch• Any leaks are captured in hatch annulus,
emptied by recovery line and drain valve.
Inspection Access Seawater Intake
Integrity Monitoring and Control g y gThermal Management, Loading and Offloading
Well Proven monitoring is utilised
Flexible Bag Suppliersg pp
Both Trelleborg in UK and Contitech in Germany has long experience in equivalent products and strong R&D departments.
Flexible tanks has been used as fuel storage for the US army under harsh environment in Afghanistan for 9 years. According to Contitech the bags are still in good condition.
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Leakage test - tank for fuel storage to US army
Subsea Storage Unit Installation
One alternative installation method is: • Tow-out the SSU in floating mode• Lower to seabed with buoyancy control• Lower to seabed with buoyancy control,
combining: compressed air in the structure buoyancy elements and “pen buoy”.
• Final positioning with DP Tugs and dowels• Final positioning with DP Tugs and dowels
Emissions and energy consumptionComparison FSO - SSU
CO2
125 500
GWh
100
751000
400
30075
50
VOC
Ton
x 1
GW
h
300
200
25
0
CO2
VOC
100
0
GWh
0 0
FSO/FSU SSU
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Energy consumption and CO2 emission based on diesel or gas turbines with 25% efficiency.Conversion; 1l diesel = 10 kwhFSO numbers based on average diesel consumption 5 000 liters per day
Conclusions and ApplicationsE t P f f E t C ditiExtreme Performance for Extreme Conditions
Subsea Factory illustration: Statoil
Th k YThank You
kongsberg.com
Acknowledgement
Kongsberg Oil and Gas Technologies wish to thank the Norwegian Research Council under the Demo 2000 program with Statoil, Lundin and Det Norske Oljeselskap as partners for ongoing
contribution and support.
Th l f th d l t i t lif th SSU f ff h i t ll ti dThe goal of the development program is to qualify the SSU for offshore installation and laboratory tests are planned to demonstrate the performance of the product.