Introducing THOR, an innovative downhole technology which will revolutionise Thermal Heavy Oil Recovery and:
Bring Thermal EOR to previously discounted wells
Inject heat into the well bore at source
Increase production rates
Maximise flow assurance
Increase recoverable reserves
Increase customer shareholder value
THOR is suitable for deployment in wells with the specific goal of utilising thermal properties to enhance production while limiting the build-up of waxes, scales etc. The devices have the ability to heat liquids at source as opposed to traditional methods where this is typically done topside and pumped to the location where inevitably large energy losses occur.
WHY HEAVY OIL?
The UK’s OGA predicts that by 2025 42% of daily North Sea production will be heavy oil.
Only 30% of remaining oil is considered “light oil” while the remaining 70% are considered “heavy oils”
The International Energy Agency stated that increasing recovery of these heavier crudes could unlock approximately 300 billion barrels
There are approximately 7 billion barrels of known heavy oil to be developed in the UKCS alone
WHY THERMAL EOR?
Thermal methods of enhanced oil recovery entail the application of heat to the oil well. This acts to lower the viscosity of the oil and thus increase the mobility ratio.
Thermal EOR processes have the greatest certainty of success and application in about 70% of the EOR market globally.
Recovery rates up to double have been seen but generally increases of c. 20%-50% are readily achievable using thermal EOR.
Thermal methods dominate the EOR market, accounting for just over 2 million barrels per day in 2014, which is 63.8 percent of global EOR production.
In 2015 global thermal EOR spending was $23.9bn
THOR
Thermal injection of up to 3000 bpd per well.
Very little heat loss as heating takes place downhole near the reservoir.
Significantly smaller footprint than traditional thermal/steam generation.
Green power sources could be utilised for THOR.
THOR Temperature ranges negate the requirement for high temperature completions and the use of thermal cement.
Could be retrofitted to fields not designed for thermal EOR to extend field life
Less sensitive to water quality than current thermal EOR methods
Has applications in both injection and production wells
Could be used for combined thermal and chemical injection operations
PROJECTED PRODUCTION OF UKCS HEAVY OIL FIELD
https://www.cavitas.co.uk/
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