| Title | Synthesis of Well Test Data and Modelling of Olkaria South East Production Field |
|---|---|
| Authors | Daniel SAITET |
| Year | 2015 |
| Conference | World Geothermal Congress |
| Keywords | Olkaria, Ololbutot |
| Abstract | Well data is analysed and reservoir parameters are interpreted unifying and incorporating the entirety of known knowledge and information into a single simplified conceptual model. The wells are highly permeable with convective zones appearing below 1 km depth in the zone immediately adjacent to Ololbutot lava flow. No independent magmatic heat sources are interpreted for the system but rather NW-SE and NNE-SSE trending faults act as fluid conduits allowing the fluid to percolated into the deep reservoir rock where it collects heat and localized upflow zones appear in the vicinity of OW-802 along permeable structures. The HOLA well bore simulator is used to predict well output curves for deep wells in the field. Most of the wells are fed by single phase liquid reservoir and therefore low outputs are expected. A resource assessment is carried out by Monte Carlo simulation which show average power output likely to be produced in the area is about 42 MWe and maximum possible output is shown to be in the region of 73 MWe using conventional flash power plant cycles. A natural state model for the field is constructed using TOUGH2. The model places plausible resource prospect areas along known structures in the area. |