Title: Enabling Materials and Corrosion Technologies for Gas Developments
1Enabling Materials and Corrosion Technologies for
Gas Developments
7th Natural Gas Conference Exhibition March 9
- March 12, 2009 Doha, Qatar
- Eric J. Wright
- ExxonMobil Development Company
- Houston, Texas, USA
2Presentation Outline
- Role of ExxonMobil Development Company
- Technology Engagement
- Technology Qualification Examples
- Full Wellstream Flowline and Pipelines
- Subsea Cryogenic Loading Lines
- Conclusions
3Role of ExxonMobil Development Co.
- Plan and execute all major oil and gas upstream
developments for ExxonMobil worldwide - Global, functional approach to engage technology
- Working alone and with venture partners,
implementing 100 plus major development projects - Identify opportunities for improved business
solutions
4Technology Transfer
- Leverage expertise and global specifications
- Identify technology opportunities
- Qualify technologies
- Apply Lessons learned
5Technology Qualification - Examples
- Full wellstream production
- Subsea cryogenic transfer
6Full Wellstream Incentive Challenge
- Incentive
- Elimination of offshore dehydration while using
carbon steel for large savings - Challenge
- Full wellstream is highly corrosive
- Strategy
- Design, qualify chemical treatment program
Dry Gas Pipeline Case
Dry gas showing wellhead and
processing platforms
Pipeline to Shore
Wet Gas Pipeline Case
Pipeline to Shore
Wet gas showing elimination of processing platform
7Full Wellstream Corrosion Control
- Define the Environment
- Define flow regimes
- Define fluid chemistry
- Qualify Corrosion Control
- Simulate environment
- Qualify corrosion control
- Transfer to Operations
- Corrosion Manual
- On site training
Flow and Liquid Entrainment
Enabled savings for multiple sour gas projects
Corrosion Test Cell
836NiFe Line Incentives Challenges
- Incentives
- Longer loading line
- Lower costs
- Less environmental impact
- Challenges
- Pipe product unavailable
- Fabrication welding
- Strategy
- Design and prototype with suppliers and pipe
mills
Loops
Trestle LNG Loading Line
9Subsea Cryogenic Pipeline
Outer Annulus nitrogen
Inner Annulus vacuum
Carbon Steel
IzoflexTM insulation
36NiFe inner pipe
1036Ni-Fe Pipe Prototype Production
- Four 3m pipes successfully constructed
- Welds tested to Det Norske Veritas OS-F101 code
Girth welding qualification
Prototype 36Ni-Fe Pipe
11Conclusions
- Materials and corrosion technologies impact
project design/economics early engagement is
valuable - Technology transfer requires an organization of
integrated expertise and a suite of
specifications - Technology requires a rigorous qualification
program - Stakeholder engagement is needed to
- Effectively qualify the technology
- Communicate the technology design limits
- Transfer the associated operating practices
- This approach captures the technology benefits
12Acknowledgements
- ExxonMobil Development Company for permission to
publish and present this paper - Colleagues in the following Companies
- ExxonMobil Development Company
- ExxonMobil Upstream Research Company
- ExxonMobil Research Engineering Company
- ExxonMobil Production Company
- 36Ni-Fe Photographs Courtesy of Butting GmbH
Co. KG