Petrophysical Simulation Within an Object-Based Reservoir Model

@inproceedings{ShtukaRM1996a,
 abstract = { The use of "stratigraphie grids" allows the construction of geostatistieal models eontrolled by stratigraphie information. A stratigraphie grid is a 3D grid with boundaries defined by stratigraphie surfaces and eells whieh respect the stratigraphie organisation (proportional, onlap, toplap, ... ). The GOCAD Researeh Group recently developed object-based stochastic simulations usi ng curvilinear sed· imentary bodies and generalized the concept of stratigraphie grids within eaeh simulated objeet. We propose a technique for simulating petrophysieal parameters within an object-based reservoir model, using this framework provided by stratigraphie grids within eaeh objeet. The complete stochastie simulation approaeh is then defined by the following sequence of operations: 1. Define a 3D stratigraphie grid respeeting the geometry of the sedimentary limits of the reservoir. 2. Next, in the layers where it is required, stochastically simulate the distribution of 3D curvilinear sedimenlary bodies (e.g. representing sand bodies). 3. Once this objeet simulation is performed, ereate a local 3D curvilinear stratigraphic grid contained within eaeh sedimentary body. , 4. In eaeh of these local 3D curvilinear strati graphie grids, use geostatistieal simulation tools to simulate the distribution of petrophysieal properties. The local eurvilinear stratigraphie grids so defined honours the sand bodies stratigraphy and allow ta generate more realistic simulations than classieal global rectilinear grid. The ultimate goal is to merge ail the local 3D curvilinear stratigraphie grids into one global 3D curvilinear reservoir stratigraphie grid filling the whole reservoir. The petrophysical properties of the reservoir ean then be transferred from the local stratigraphie grids to the global reservoir stratigraphie grid. Erosion rules between sand bodies ean also be accounted for. With such an approaeh, based on local stratigraphie grids within sedimentary bodies, we can take into account bath the geometry and the topology of the geologieal bodies. },
 author = { Shtuka, Arben AND Samson, Philippe AND Mallet, Jean-Laurent },
 booktitle = { 13th gOcad Meeting },
 month = { "june" },
 publisher = { ASGA },
 title = { Petrophysical Simulation Within an Object-Based Reservoir Model },
 year = { 1996 }
}