Subsea Power Richard Knox, EC-OG info@ec-og.com +44 (0) 1224 - - PowerPoint PPT Presentation

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Subsea Power Richard Knox, EC-OG info@ec-og.com +44 (0) 1224 - - PowerPoint PPT Presentation

Sep 09, 2023 298 likes •413 views

Autonomous Subsea Power Richard Knox, EC-OG info@ec-og.com +44 (0) 1224 933301 Challenge Providing power and communicating with remote well locations Substantially reduce cost of providing subsea power Average Well Tieback Distance

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SLIDE 1

Autonomous Subsea Power

Richard Knox, EC-OG

info@ec-og.com +44 (0) 1224 933301

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SLIDE 2

Challenge

  • Providing power and communicating with remote well locations
  • Substantially reduce cost of providing subsea power

Average Well Tieback Distance

Source: Infield Systems

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SLIDE 3

Remove the Umbilical

Xmas Tree

SCM Direct Actuator Override Sensor Direct Pressure Cap Remote Monitoring

Late Life Production

Decommissioning

SPH

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SLIDE 4

Wellhead

Subsea Well Power & Communications

SPH Acoustic Modem Satellite Existing Host Facility Seabed Ocean Surface Tree SCM

Brown Field System

Umbilical Hydraulic Chemicals Export Pipeline

Hardwire Wireless comms medium

Buoy Surface Comms + Acoustic Modem

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SLIDE 5

Wellhead SPH Acoustic Modem Seabed Ocean Surface Tree

Hardwire Wireless comms medium

Trans / Receive Surface HMI Trans / Receive

Subsea Well Monitor

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SLIDE 6

Ocean Current Energy Converter

  • Predictable Energy Source
  • Energy Storage
  • Compact Energy Conversion

Subsea Power Hub (SPH)

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SLIDE 7
  • Maximum energy extraction from SPH footprint
  • Energy Storage
  • Installation by entry level CSV
  • Low cut-in speed
  • Overtrawlable
  • Intelligent energy management system (IEMS)
  • Built-in redundancy

Subsea Power Hub (SPH)

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SLIDE 8

Energy Storage

Pre-2000

Continuous Power for SCM Li-ion 0.1 Tonne + regeneration

2006

Continuous Power for SCM Ni-MH 8 Tonne 300 kWh Bad Memory Effect Self Discharge

2016

Continuous Power for SCM Lead Acid 24 Tonne 300 kWh Gas Produced Containment Issues

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SLIDE 9

Energy Storage

Pre-2000

Continuous Power for SCM Li-ion 0.1 Tonne + regeneration

3000 kWh

2006

Continuous Power for SCM Ni-MH 8 Tonne 300 kWh Bad Memory Effect Self Discharge

2016

Continuous Power for SCM Lead Acid 24 Tonne 300 kWh Gas Produced Containment Issues

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SLIDE 10
  • Enables alternative to an electrical umbilical
  • Reduced delivery and installation time
  • Installation by minimum capability vessel
  • Energy recovery from the environment
  • Reduced decommissioning cost

Summary of Benefits