An emergency disconnection technology enabling safe and intelligent access to sustainable deepwater subsea oil and gas assets

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Title
An emergency disconnection technology enabling safe and intelligent access to sustainable deepwater subsea oil and gas assets

CoPED ID
822d45e2-6861-4687-bb74-d2226ad6490b

Status
Closed


Value
£1,561,670

Start Date
July 31, 2018

End Date
Aug. 31, 2019

Description

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Optimised extraction of subsea oil/gas underpins a smooth transition to a largely-renewable energy balance by 2060, with assets increasingly located in complex deepwater/ultra-deepwater, for which operation at 15kpsi system pressures is becoming essential for sustainable extraction efficiency and well integrity.

However, the challenge of accessing these assets in a commercially/risk-acceptable way is unmet, restricting vital subsea-operations over the full-lifecycle to less than 5% of those required. New rigless/riserless methods to intelligently access deep-water assets from subsea-manifolds/trees, using small dynamically-positioned vessels and flexible open-water downlines, can therefore be transformational, but rely on failsafe Emergency-Quick-Disconnection (EQD) technology to prevent damage to the downline, vessel or well-integrity in the event of dynamic-positioning-failure/drift-off. However, this technology does not exist at 15kpsi, rendering these operations in deep/ultra-deepwater too high-risk.

In response, Secc are developing game-changing mechanically pressure-balanced venting architectures, to realise reconnectable weak-links for failsafe EQD. First-generation devices have been 3rd-party-validated for 10kpsi operations, and building on these concepts, Secc now targets the technological step-change required to realise a 15kpsi EQD-connector. R&D focusses on a fundamental redesign/development of the pressure-retaining architecture, seal geometry and actuation, supporting new industry standards.

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Subjects by relevance
  1. Optimisation
  2. Energy efficiency
  3. Technology
  4. Sustainable development
  5. Energy balance

Extracted key phrases
  1. Sustainable deepwater subsea oil
  2. Emergency disconnection technology
  3. Intelligent access
  4. Gas asset
  5. Sustainable extraction efficiency
  6. Water asset
  7. Vital subsea
  8. Failsafe EQD
  9. Water downline
  10. Renewable energy balance
  11. System pressure
  12. Operation
  13. Balanced venting architecture
  14. Failsafe Emergency
  15. Smooth transition

Related Pages

UKRI project entry

UK Project Locations