Title:

Multidisciplinary Data Substantiate Vapliq Model of the Los Azufres Geothermal System

Authors:

E.R. Iglesias, V.M. Arellano, D. Nieva

Geo Location:

Los Azufres, Mexico

Conference:

Stanford Geothermal Workshop

Year:

1989

Session:

Field Results I

Language:

English

File Size:

647KB

View File:

Abstract:

We revise and expand our previous vapliq model of the Los Azufres hydrothermal system. We present data that delin- the vertical distributions of the formation's thermal conductivity and density. Both distributions dis- close a sharp change of formation prop- erties at the boundary between the liquid-dominated layer and the steam cap. This supports the inference of our previous work that a substantial per- meability contrast must exist between liquid- and vapor-dominated layers the system. we present the observed vertical distribution of liquid satura- in the system as inferred from the chemical composition of reservoir flu- and well logs; we use it, in addi- tion to the pressure profile, to calib- the model's thermophysical parame- ters. Calibration against both observed profiles greatly improves the reliability of the model.


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