This project estimates interwell connectivity, a characteristic that is crucial to determine reservoir
continuity while developing a waterflooding project. It tests the combination of Fourier transforms (FTâÂÂs)
of the flow rate data and analytical solutions from analog electrical circuits to infer the inverse diffusivity
coefficient (IDC). I solved the transmission line equation analytically for 0D, 1D, and 2D
resistance/capacitance (RC) network models and used those solutions to compare with the flow rate FTâÂÂs
to determine the diffusivity parameters. I used the analogy between the electrical response of RC
networks and the fluid response of permeable reservoirs on the basis of the similarities in the governing
equations.
I conclude that the analogy works accurately in simple reservoirs, where the assumptions of an analytical
solution are met, i.e. single-phase fluid and a homogeneous system. For two-phase liquid cases, I
determined that the analogy remains applicable because we still could produce accurate interwell
connectivity information. When I investigated cases with dissolved-gas production around the wellbore,
however, the analogy broke down and the results were not as good as the liquid systems.
| Identifer | oai:union.ndltd.org:tamu.edu/oai:repository.tamu.edu:1969.1/5998 |
| Date | 17 September 2007 |
| Creators | Demiroren, Ayse Nazli |
| Contributors | Jensen, Jerry L. |
| Publisher | Texas A&M University |
| Source Sets | Texas A and M University |
| Language | en_US |
| Detected Language | English |
| Type | Book, Thesis, Electronic Thesis, text |
| Format | 7671239 bytes, electronic, application/pdf, born digital |
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