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Reservoir Bodies Geometry Shape Modeling Method of Carbonate Fracture-cavity Reservoir : Taking the Ordovician Carbonate Reservoirs in Tahe Oilfield Area 4 as An Example
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zhao, Bin Hou, Jiagen |
| Copyright Year | 2017 |
| Abstract | Because of the tectonic reconstructions, weathering, denudation and eluviations, the carbonate fracture-cavity reservoir space types are diverse, reservoir body geometries are quite irregular, spatial distribution is stochastic, and reservoir 3D space distribution is difficult. Research on carbonate fracture-cavity reservoir bodies geometry shape modeling method will be necessary for depicting reservoir bodies spatial distribution, quantitatively characterizing fracture-cavity reservoir heterogeneity, and accurately calculating oil and gas reserves. This paper proposed the basic research approach of “cave and fracture reservoir bodies classification modeling " according to the characteristics of carbonate fracture-cavity reservoir. For cave reservoir body, we proposed the modeling idea of "vertical and horizontal zoning, karst facies controlled" according to origin modeling principle, regarding well cave data as main data, and cave development probabilistic data from wave impedance analysis as auxiliary data, building cave reservoir body model by the sequence indication modeling method. For fracture reservoir body, we proposed the modeling idea of "multi-scale discrete fracture network" according to hierarchy modeling principle, using deterministic modeling methods to build the large scale fracture model, using an object-based marked point process simulation to build the middle scale fracture model, under the constraint of fracture occurrence data and fracture density distribution model. Finally we use above modeling methods, takeing the Ordovician carbonate reservoirs in Tahe oilfield area 4 as the example to build the geometry model of cave and fracture reservoir bodies respectively. These models reproduce the 3D geometry of fracture-cavity reservoir bodies. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.revistadelafacultaddeingenieria.com/index.php/ingenieria/article/download/1394/1372 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
