Publications

TECWAL is an integrated analysis between TypE Curve, Core Analysis and Water AnaLysis for getting the optimum electrical parameter that will be used in water saturation calculation in Low Resistivity Low Contrast (LRLC) reservoir condition. Simple idea of this analysis is high water saturation value in reservoir is not reflecting the true reservoir condition such as good hydrocarbon well test and production. So that, water saturation analysis in this reservoir condition is need to calibrated with Irreducible Water Saturation (Swirr) from Core Data and electrical parameter determination at water formation salinity condition from Water Analysis Data. Assumption LRLC reservoir condition which can be applied this analysis are high capillarity reservoir, possible conductive mineral influenced and laminated shaly sand. TECWAL integrated analysis has been applied in proven multiple hydrocarbon reservoir of Main and Massive Cibulakan Formation, Offshore North West Java Area. Based on wireline log, mud log and core data, some of reservoirs is indicated as LRLC reservoirs. Application of this integrated analysis is involve hydrocarbon proven reservoir and water filled reservoir. So that, the final water saturation optimum result is expected in both reservoir. The optimum electrical parameter based on integrated analysis is an expected final result so that occurrence and quality of required data is absolutely necessary. Furthermore, application of those electrical parameter in water saturation calculation showing decrement 10-30% and good correction between Sw to Swirr above freewater level. This paper will explain more detail about TECWAL integrated workflow and showing the result based on some case study.