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Reference Number GST022654
Title Cementation of oilfield sandstones: micro-geochemical tracers, reveal macro-fluid hydrogeology
Status Completed
Energy Categories FOSSIL FUELS: OIL, GAS and COAL(Oil and Gas, Enhanced oil and gas production) 100%;
Research Types Basic and strategic applied research 100%
Science and Technology Fields ENVIRONMENTAL SCIENCES (Earth Systems and Environmental Sciences) 100%
UKERC Cross Cutting Characterisation Not Cross-cutting 100%
Principal Investigator Professor RS (Stuart ) Haszeldine
No email address given
School of Geosciences
University of Edinburgh
Award Type R&D
Funding Source NERC
Start Date 01 January 2000
End Date 31 July 2003
Duration 43 months
Total Grant Value £185,146
Industrial Sectors Transport Systems and Vehicles
Region Scotland
Programme Understanding the Micro-to-Macro Behaviour of Rock-Fluid Systems (M2M)
Investigators Principal Investigator Professor RS (Stuart ) Haszeldine , School of Geosciences, University of Edinburgh (99.996%)
  Other Investigator Prof A (Anthony ) Fallick , SUERC (Scottish Universities Environmental Research Centre) (0.001%)
Professor PWM (Patrick ) Corbett , Institute Of Petroleum Engineering, Heriot-Watt University (0.001%)
Prof C (Colin ) Graham , School of Geosciences, University of Edinburgh (0.001%)
Dr C Macaulay , School of Geosciences, University of Edinburgh (0.001%)
Web Site
Objectives Objectives not supplied
Abstract Reservoir quality in hydrocarbon reservoir sandstones can be greatly influenced by mineral cementation or dissolution. This can change porosity by 50% and permeability by 105. Such processes were partly controlled by palaeo-hydrogeology. The micro-isotopic and micro-geochemical composition within cements holds a detailed zonation record of paleo-hydrogeology, which can now be investigated bynewmicro-scale analytical technology. We will combine conservative tracers and palaeopressures from fluid inclusions with natural isotopic tracers measured by ion and laser microbeam instruments. Statistically based sampling will enable reliable up-scaling to calibrate blocks in basin-scale computer models. This will integrate microanalysis with basin architecture. Study sites are selected to resolveconflicting interpretations of characteristics cementation processes.
Publications (none)
Final Report (none)
Added to Database 28/05/08