Oil Exploration and Extraction - John Herbst - version 2 - 2010
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Oil Exploration and Extraction - John Herbst - version 2 - 2010 Oil Exploration and Extraction - John Herbst - version 2 - 2010 Presentation Transcript

  • Oil Exploration & Extraction
    John Herbst
    CEM Advisory Panel
    April 27-28, 2010
  • Presentation Overview
    Technology Overview & Relevance
    CEM Research Activities
    Electromagnetic Vibrator
    Electric Valve Actuator
    Subsea Production Systems
    Offshore Power Generation/Distribution
    Hyperbaric Test Facility
    Upcoming Milestones
  • Technology Relevance
    Most of the “easy” oil and gas reserves have been identified
    Locating and exploiting future reservoirs will require drilling and production in more challenging environments
    “Tight” formations
    Deeper water/higher pressures
    Longer offsets
    CEM Research
    Electric valve actuation
    EM Vibro-seismic sources
    Subsea/Offshore production
    Power transmission/conversion
    Source: Aker Solutions
    Source: http://www.hydro.com/library/images/press_room/news/2003_11/Ormen_1800.jpg
  • Electromagnetic Vibrator
    New technology advancing the exploration for oil & gas
    Replaces existing vibro-seismic technology based on hydraulic actuators
    Uses EM forces to generate source waves
    Higher force, lower frequency and higher fidelity are potential improvements to existing technology
  • Ground Force Simulations
    Simulation model does not include the natural resonance of the base plate (~175 Hz). Model DOES include earth resonance (~39 Hz)
    Expected spectral performance of proof-of-concept system is good
    Figure shows 60 Kip force for full sweep
    Bottom figure shows waveform details at ~120 Hz
    PWM delivers good harmonic resolution
    Proof-of-concept system will produce 60 Kips on soils comparable to sand (or harder)
    Detailed high resolution models in Matlab were used to guide the development
    5
  • EM Vibrator Conclusions
    Design, construction, and assembly of the electromagnetic vibrator is complete
    Integration on an existing truck is complete
    Initial testing has just begun and we plan to test the full functionality of this new oil and gas exploration technology
  • Electric Valve Actuation
    Wellhead valves have typically been hydraulically actuated with failsafe spring closure
    Operation at higher pressures requires larger springs
    Discharge of hydraulic fluid is prohibited in many areas
    Zero tolerance in North Sea
    CEM developed designs for all-electric valve actuators
    http://www.spe.org/jpt/2006/10/all-electric-subsea-production-system/
  • Subsea Production Systems
    Subsea production processes
    Multi-phase pumping
    Re-injection pumping
    Separation
    Gas compression
    Multi-megawatt power levels
    Technologies
    Barrier fluid filled motors
    Induction motors
    Permanent magnet motors
    Power distribution/control
    1.8 MW Subsea Pumps
    http://www.intsok.no/docroot/downloads/Framo--PDF-7--Subsea-Pump-Proje.pdf
  • Integrated Compression Systems
    Direct drive compressor with integral high speed electric motor
    Single pressure housing
    Eliminates high ΔP seal
    Leveraging CEM experience with high speed, high power density electric machines
    Example of GE Integrated Compressor
    http://www.gepower.com/businesses/ge_oilandgas/en/literature/en/downloads/integrated_compressor_line.pdf
  • Subsea Separation/Boosting System
  • Flooded Motor Technology Evaluation
    CEM evaluation favors synchronous PM motor over induction motors for subsea applications
    Pros
    Power factor
    Efficiency
    Physical airgap
    Cons
    Power density
  • Motor Comparisons
  • Motor Comparisons
  • Offshore Power Generation & Distribution Systems
    Typical Floating Production, Storage and Offloading (FPSO) ship has ~100 MW power generation
    Pumps and compressors are major loads
    Leveraging ESRDC experience in modeling of ship power systems to explore novel offshore power system topologies
  • Statoil Troll A Platform
    Statoil’s Troll A Platform off coast of Norway
    ABB HVDC Light power distribution from shore
    ~85 MW of electrical power
    ~70 km offset
  • Offshore Power Transmission & Distribution Systems
    Eliminate FPSO or fixed platform by providing tie-back to shore
    Eliminates cost/risk of topside installation
    Efficient power generation on shore
    Requires subsea production system
    Motors, pumps, separators, compressors, valves, etc.
    Communications & control
    Power distribution & conversion
  • CEM Hyperbaric Test Facility
    ASME Code rated:
    10,000 psi, 400°F
    Interior dimensions:
    19” Ø x 58” L
    14 penetrations
    Instrumentation
    Power supply
    Hydraulics
  • Upcoming Milestones
    Field testing of EM vibrator
    May – June 2010
    Production prototype of EM vibrator
    Projected program start August 2010
    Certification and commissioning of hyperbaric chamber
    Scheduled for May 2010
  • Summary
    CEM is conducting state-of-the-art research to support exploration and production of challenging oil and gas reserves
    Developing major new research programs in this area
    Research leverages CEM’s core technologies
    Power system modeling and simulation
    High power density electric machines
    Electric actuators
    Power generation, distribution, and conversion
    CEM is building a 10,000 psi hyperbaric test facility to support future research in this area