Subsea Production Assurance

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Subsea Production Assurance

• A new generation of Smart Qualified Subsea Flow
  Assurance Integrity Monitoring Tools

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The flow assurance integrity challenge

• Deeper water/remote reservoirs
• hotter, higher pressure, corrosive, hydrate
  susceptibility, sand producing and stranded,
  remote with prohibitive intervention costs
• Longer tiebacks and multiphase transportation
• corrosion and scale
• plugging (hydrate precipitation and organic
  solids formation due to thermal/hydraulic
  profiles)
• sand erosion damage and accumulation

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the challenge

• Brownfield decline and increased high risk
  marginal fields
• Commingling of unprocessed well streams can lead
  to increased risk of fluids incompatibility and
  raises partner/joint venture issues in sharing
  infrastructure
• Environmental and HS regulatory increasing
  governmental constraints

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The Smart digital oil field

• New technologies destined to transform the
  offshore industry
• 4D seismic, smart wells, intelligent completions
• high bandwidth HTHP deepwater qualified seamless
  integration of S3-Monitoring and modeling M2
• remote 3D virtual visualization

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Subsea flow assurance integrity monitoring
technology

• Sub-surface monitoring downhole PT
• Wellhead MPFM, Pressure Temperature
  Transmitters, Sand Probe, Choke Bridge Condition
  Monitor
• Flow-lines, manifold, risers Pressure
  temperature, Corrosion Probe, Flow Assurance
  Probe/Spool

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Sand Management - Probes

• Intrusive sand erosion with P T only
• Intrusive direct erosion measurement with
  intrusive acoustic for sand rate, mass flow with
  P and T
• Non-intrusive acoustic for sand rate only

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Sand management modelling and prediction

• Integrated sensor detects sand impacts through
  acoustics and directly correlate with erosion,
  flow force with PT
• Model sand flow regime and characterise well and
  risk to system
• Model sand accumulation through the network

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Choke bridge condition monitoring

• Sand erosion sand rate, pressure and temperature
• Detects preferential flow at exit from choke
  valve
• Integrated into one module to SCM

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Pipeline integrity management - Corrosion
monitoring spools

• On-line inspection tool - FSM 0.1 wall thickness
• Real-time monitoring tool RPCM 0.005 wall
  thickness complete with pressure and
  circumferential temperature profile
• Locations subsea flowlines pipelines

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Flow Assurance Integrity management single
point sensor

• Integrated multi-array subsea sensor measures
  metal loss (CEION?), PT, mass flow force,
  acoustics (sand or hydrates), solution
  conductivity and heat transfer
• Applications include
• Hydrate precipitation and formation detection
• Organic solids deposition detection
• Scale detection
• Under deposit corrosion measurement
• Erosion-corrosion-sand correlation

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Flow Assurance Integrity management spool piece

• Integrated multi-array spool piece sensor
  measures metal loss (CEION? RPCM), differential
  pressure, circumferential temperature, acoustics
  (sand or hydrates), solution conductivity and
  heat transfer
• Applications include
• Corrosivity profile and under deposit localised
  corrosion measurement
• Erosion-corrosion-sand correlation
• Hydrate, Organic solids deposition and Scale
  detection
• Slug flow and liquid hold-up

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Flow assurance integrity modelling and simulation

• Flow assurance integrity modelling ensures
  technical, operational and HSE integrity during
  design and operation of production systems
  throughout the entire life cycle. This results in
  overall capital and operating cost effectiveness.
  
• Successful design and operation of multiphase
  production systems rely on detailed understanding
  of flow behaviour

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The Impact of Flow Assurance Integrity
Technologies

• Integrated subsea real-time Flow Assurance
  Integrity monitoring correlated with modelled
  simulations evolve optimized intervention
  strategies enable RISK to be managed with
• Accelerated production and improved ultimate
  recovery
• Longer tiebacks - increased flow assurance
  integrity and reduced capex
• Economically viable developments
• Proactive intervention/maintenance - reduced opex

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Questions?