Investor Presentaiton
Tentative Results
STITUTT
TEKNOL
Ngrayong Formation in Gundih field doesn't have a big closure to inject CO2.
The formation has an open structure to the north that will have a possibility
to migrate the injection of CO2 (Asikin, 2012).
Kujung Formation does not provide sufficient storage capacity. With
optimum injection surface rate of 960 tonCO2/year @ Pinitial = 940 psia,
maximum total gas injection is 7000 ton CO2 in 10 years with negligible
increase in pressure value (Ekowati, 2012).
Ngrayong Formation provides sufficient storage capacity. With injection
surface rate of 1,000 ton CO2/year, total gas injection could reach 10,000
tonCO2 in 10 years with negligible increase in pressure value (Ekowati,
2012).
However, uncertainty factor is still large since many assumptions are used to
generate the model properties. There is a possibility that injection at
Ngrayong Formation will be leak to the surface or charging into Caluk
structure through the northern fault.
Future works will concentrate in determining possible location in the
northern part of Gundih Field with most likely residual trapping mechanism.View entire presentation