Steam Flow Measurements in the Maibarara Geothermal Field: A Case Study Between Flow Testing and Online Steam Flowmeters
- Key words
- Maibarara, steam flow measurement, vortex flowmeter, orifice flowmeter, tracer flow testing, horizontal discharge testing, Bland-Altman analysis, degree of agreement
- Conference
- World Geothermal Congress
- Year
- 2020
- Session
- Production Engineering, Steam Gathering Systems
- Language
- English
- Paper number
- 25014
Full text
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Abstract
Two types of steam flowmeters are used in the Maibarara Geothermal Field. The vortex flow meter, installed at the main steam line, measures the total steam flow from the separator while the orifice flow meter, installed at the interface, measures the steam flow going into the steam turbine. Periodic flow testing measurements such as tracer flow test (TFT) and horizontal discharge testing are also being conducted. This paper presents a comparison between flow testing and online steam flowmeters using the Bland-Altman analysis to determine the degree of agreement between two steam flow measurement methods. Results show that the vortex and orifice flow meters can substitute for TFT measurements at the main steam line and interface, respectively.
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