Modelling of two-phase flow in fractured carbonate reservoirs: a fieldscale demonstration
Duration - 01/03/98 - 28/2/2001
Funding - Funded by the European Union Fourth Framework Hydrocarbon Reservoir Programme (THERMIE).
Co-ordinator - Hellenic Petroleum (Greece)
Industrial Partners
Other research partners
- GEUS(Geological Survey of Denmark & Greenland).
- GPEP (Gabinete Para a Pesquisa) (Portugal)
Summary - This project is directed towards the demonstration and testing of a range of technologies for the appraisal and development oftight carbonate oil reservoirs. A work flow will be developed which integrates new and established methods, tools and data for the characterisation of fractured carbonate reservoirs. The work flow will be defined and implemented in a unique location at which a natural reservoir can be accessed at a shallow level allowing testing, measurement and demonstration on true reservoir dimensions and time scales with natural oil and water saturations. A subsurfacefracture and flow model of the 'demonstration' reservoir will be created, consistent with the varied data. The project aims to establish the effectsof barriers and conduits for fluid flow due to the disposition of reservoirheterogeneities, of which the most important are due to fracturing, enabling selection of optimum well locations and directions.
The project will examine the structure and flow within a non-economicshallow hydrocarbon reservoir within the Lusitanian Basin, Portugal. Theanalogue is fractured carbonate reservoir with a relatively simple, faultedanticline geometry. Data collected from this full scale analogue will beas similar as possible to that of a deep reservoir, and will include acquisitionof a seismic reflection dataset, drilling of 3 ca 300m deeep wellls andacquisition of a full suite of downhole logging and flow data. Reconciliationof all the data will be achieved by history matching through numerical 2-phase flow modelling.
FAG's principal aims and responsibilities include;
- Geometric characterisation of fault and microfracture networks from outcrop and core data
- Poro-perm characterisation of fault and microfracture networks from existing core data.
- Definition and construction of reservoir model, with project partners, from well and seismic data
Contact: John Walsh
Tel: +353 1 716 2169
Email
Project Web Site: for sponsors only