OG21 TTA4: Barents Sea Gas Condensate Field Development business case. Espen Hauge

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1 OG21 TTA4: Barents Sea Gas Condensate Field Development business case Espen Hauge Presentation at OG21 conference Kjeller

2 How to select business cases? Support the vision Covering most of TTA4 Complementary Delimited Technology for safe and environmental friendly production from ANY field Business Case Gas condesate Business Case Field life extension Business Case Sensitive areas

3 The business NPD estimate total gas condensate reserves in the Barents Sea (proven + undiscovered) to be approx. 800 B Sm3. The economic value of these reserves, based on an assumed gas price of 2 NOK/Sm3, is in the order of 1600 BNOK.

4 The case Field development scenario: Onshore LNG (or CNG) and ship transport, similar to Snøhvit/Melkøya, longer step-outs km Wet gas flowline to shore Main technology gaps relate to the extended step-out. Alternatives: Offshore floating/compact LNG/CNG Tie-back to export gas pipeline infrastructure

5 Key Technology Areas Power Processing Operation and Controls Modelling and Sensor Technology Other topics Photo: Svein Roger Ivarsen / Norske Shell

6 Power Crucial for business case AC vs DC transmission systems Development of DC is expensive, but: Is enabling for ultra-long step-out May reduce cost also for short step-out Has synergies with renewable industries Longer term, game changer: Local Power Generation (Wave/Wind/?) Main technology gaps for power transmission are: Power transmission and distribution for very large power requirements Low frequency AC (16 2/3 Hz) for long step out HVDC for very long step out Module-based concepts for reduced weight and size (both for low frequency AC and HVDC) Pressure tolerant power electronics

7 Process & FA Hydrate management and slug handling in long distance transport of gas in a multiphase pipeline: - Subsea gas dehydration - Alternative technologies to pipeline transportation of the removed condensate - Direct electric heating (DEH) - More efficient concepts for long distances - Next generation subsea compression systems Main technology gaps for process technology and flow assurance are: Management of the condensate if not transported with the gas in the same pipeline; (e.g. shuttle tankers offshore) Subsea processing (gas dehydration, coolers, LNG) Subsea water treatment Electrical heating to avoid hydrate formation particularly challenging for long distance gas transport Wellstream compression

8 Modelling, Prediction, Sensing Slug catcher size and inhibitor system capacity: Process condition monitoring Very long gas condensate pipelines Sensors distributed along the pipeline (support flow modelling) Sensor technology gaps relating to deposit and pipe integrity monitoring: hydrate, wax, scale, liquid accumulation and wall thickness (corrosion). Environment monitoring (leaks etc), Meteorological and marine data coverage Main technology gaps for modelling, prediction and sensor technology are: Modelling and simulation of gas condensate pipelines (with low liquid content) Multiphase flow modelling covering extended step out and low ambient temperature Improved confidence in process modelling through extended process monitoring Process condition monitoring sensor technology for subsea application Distributed subsea power supply systems for process and pipeline integrity monitoring Distributed signal transmission for process and pipeline integrity monitoring Subsea leakage detection Environmental monitoring and monitoring of maritime data

9 Operation & Controls All electric controls and/or hydraulic power generated locally at the subsea template (HPU) will be important building blocks for the 150+ km step out. There are still some technology gaps to achieve all-electric control systems. This will require validation of umbilicals including two-way power and signal transmission. Main technology gaps for operation and controls: Long step-out control systems All-electric and/or SHPU Corrosion, scale and hydrate inhibition Subsea chemical injection

10 Other topics Arctic marine operations Gas processing and LNG Local Power generation

11 Technology Gaps: Barents sea, gas condensate field Technology Gap / Requirement Time to project selectable (yrs) Costs* (MNOK) Criticality for business case Global market value OG21 strategic goal** Main barriers to success Extended range AC High High 13,2,4 Innovation Demonstration Pilot installation All electric control systems, reduced umbilical High High 2,3,4 Competence Innovation Demonstration Sensor technology and condition monitoring for subsea production systems (incl. pipeline) High High 2,4,3 Total technology gap closure investments Competence Innovation Demonstration Multiphase flow modelling Competence (0.5-2 BNOK, 3-15 excluding HVDC High and local Highpower generation) 1,4,3 and simulation Innovation vs. Value of available reserves (1600 BNOK) Subsea dehydration High Medium 1,2,4,3 Subsea chemical injection Medium Medium 4,3,2 indicates an excellent business case Subsea cooler Medium Medium 3,4 Innovation Demonstration Innovation Demonstration Innovation Demonstration Pilot installation Wet gas compression Medium Medium 1,3,4 Subsea HVDC > 1000 Medium Medium 1,2,4,3 Pipeline heating systems for long distance gas transport Medium Medium 3,4,1 Local Power Generation Low High 1,,4,2,3 In-well compression Low Medium 1,4,3,2, Demonstration Pilot installation Competence Innovation Innovation Competence Innovation Innovation Demonstration

12 TTA4 Summarized in one figure Technology for safe and environmental friendly production from ANY field Business Case Gas condesate Business Case Field life extension Business Case Sensitive areas New field development concepts Increased production efficiency Subsea and in well processing Gas processing and LNG Power supply and distribution Subsea technology Automation/ unmanned facilities Condition monitoring sensor technology Flow modelling and flow assurance Integrity management and risk reduction Leakage prevention and detection Arctic marine operations Prioritized areas for governmental funded R&D:

13 Questions & Discussion

14 General TTA4 5 focus areas: 1. Subsea power transmission and distribution 2. Integrity management technology 3. Extended multiphase transport 4. High performance subsea separation for long distance transport 5. Real-time condition monitoring technology Prioritized areas for government funding: 1. Fundamental knowledge on multiphase pipeline flow and flow assurance 2. Long range subsea power supply and distribution 3. Fundamental understanding and models for oil/gas/water separation, including produced water handling 4. Models for ice loads and ice interaction 5. Integrity management and monitoring 6. Advanced sensors for control and early fault (including leakage) detection Subsea gas processing

15 BC1: Barents Sea Gas Condensate Field Development Expected resources: 800 billion Sm3 (ref. NPD) Value 1600 billion km wet gas multiphase transport No pipeline export infrastructure => LNG Technology gaps: Power transmission Process technology and Flow assurance Operations and control

16 Most important focus areas for value creation on NCS and export from TTA4 1. Subsea power transmission and distribution 2. Integrity management technology 3. Extended multiphase transport 4. Next generation Subsea processing 5. Real time condition monitoring technology

17 TTA4 Areas where governmental funding, is most important (In prioritized order): 1. Fundamental knowledge on multiphase pipeline flow and flow assurance 2. Long range subsea power supply and distribution 3. Fundamental understanding and models for oil/gas/water separation, including produced water handling 4. Models for ice loads and ice interaction 5. Integrity management (including leakage prevention) and monitoring 6. Advanced sensors for monitoring, control and early fault (including leakage) detection 7. Subsea dehydration technology

18 TTA4 Roadmap for subsea processing and long range multiphase flow

19 Roadmap