Title:

Three Dimensional Numerical Modeling of Mindanao Geothermal Production Field, Philippines

Authors:

E.B. Emoricha, J.B. Omagbon and R.C.M. Malate

Key Words:

Mindanao, Philippines, numerical modeling

Geo Location:

Mt. Apo, Philippines; Mindanao

Conference:

Stanford Geothermal Workshop

Year:

2010

Session:

Modeling

Language:

English

File Size:

1260KB

View File:

Abstract:

The three-dimensional numerical model of Mindanao Geothermal Production Field developed to predict reservoir conditions under different exploitation schemes. The numerical model, consisting of 16,411 active blocks was calibrated using TOUGH2 against pre-exploitation state of the reservoir and 13 years production history of the field. Natural state modeling gave good matches to the measured temperatures and pressures, and showed good agreement with the major flow features of the conceptual model. Production history matching was also able to match the field discharge trend. The numerical model also reproduced observed physical properties, such as minor effects of injected fluids and expansion of two-phase region. With the current extraction strategy of the field and planned development of additional 50MWe generation, forecasting runs were also conducted to investigate the viability of the project.


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