I am aware that the process itself depends on the geology of the reservoirs to a certain extent in addition to of course development scheme (depletion followed by water injection or gas injection .. etc). I am in the process of trying to compile a benchmarking of recovery vs. reservoir geology vs. mobility ratio vs. heterogeneity (areal and vertical) for different waterflood patters. Then I might try to develop further to other development schemes (gas injection, EOR .. etc)
I am sure that I need to use average drainage radius/permeability, communication between layers and BHP. However this is making it very complicated.
Any ideas? Any suggested references? Any one who is interested in trying this as a first method of field development appraisal/bidding process?
What I am thinking is once these factors are estimated, a reasonable estimate of recovery factor can be achieved even before simulation process starts. Since static and dynamic models are using basically this data to generate forecasts in the first place. Appreciate you feedback and discussion.
Elias,
Thanks for sharing this. I have seen such a table as well for North sea before.
I am not sure if the range can be reduced by incorporating other parameters like
PVT, permeability, heterogeneity, fault distances, .. etc and a reasonable estimate of recovery factor can be achieved (not considering the facilities and lifting methods for now at least).
Please let me know if you are aware of any work that incorporated these factors (I have seen before something like kh/viscosity vs. cumulative recovery per well for one region)
Thanks again,
These incorporating parameters have significant effect on the recovery factor. Specially, Permeability that influences on the cut-off calculation
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