Extending the lifetime and increasing oil recovery of a reservoir requires reliable reservoir simulation models that allow the accurate prediction of production profiles for different IOR strategies. Major ingredients to these simulation models are multi-phase flow parameters, such as relative permeability and capillary pressure, properly adapted to the relevant flow ...
Reservoir challenges of heterolithic tidal sandstone reservoirs in the Halten Terrace, mid-Norway
Production from the Halten Terrace hydrocarbon province (Mid-Norwegian shelf) is mainly from heterolithic siliciclastic successions as well as diagenetically altered sandstones. Eight hydrocarbon fields are currently in production, which produce c. 840 000 BBL oil equivalent per day, with several new fields expected to come on stream in the next decade. This...
Geologically based estimation of kv/kh ratios: an example from the Garn Formation, Tyrihans Field, Mid-Norway
During reservoir model building, one encounters several stages where upscaling or averaging of petrophysical data is required; core plug data have to be compared to wireline measurements and wireline measurements are averaged to the scale of building-size reservoir grid cells. Simple averaging does not, in most cases, give representative values,...
Permeability Rescaling And Near-Wellbore Modeling Of Heterogeneities In Lower Jurassic Tidal-Influenced Tilje Formation, Heidrun Field
The Lower Jurassic Tilje Formation constitutes an important reservoir in the Heidrun Field. Reservoir characterization of its strongly tide-influenced deposits is challenging due to the high degree of heterogeneity. This is especially true for the estimation of permeability data from different scales (core plug measurements, log data and well test...
Permeability Estimation Functions Based on Forward Modeling of Sedimentary Heterogeneity
Effective permeability in the inter-well reservoir volume is notoriously difficult to estimate due to its scale dependence and sensitivity to heterogeneity. Using stochastic models of realistic 3D sedimentary heterogeneity at the 10cm to 10m scales, we established a series of functional relationships between effective permeability, bedding type and volume fraction...
