Cfd Modelling of Corrosion Test Loops for Geothermal Fluid Applications

K. Lichti, R. Julian, C. Davies, B. Fletcher, K. Osato, M. Sato, K. Kasai, N. Yanagisawa, K. Sakura

Key words: geothermal, corrosion, scaling, monitoring, test loop, CFD, field testing
Conference: New Zealand Geothermal Workshop
Year: 2020
Session: Session 5.2 Above Ground Technology 3
Language: English
Paper number: 131

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Abstract

Small bore corrosion test loops in side streams have been commonly used for many years in the oil and gas industry for cooling water corrosion monitoring. This work describes a high temperature flowing brine test loop for on-line Electrical Resistance, Linear Polarisation Resistance and ASTM coupon exposure testing in geothermal applications. CFD modelling of the Electrical Resistance probe access points is presented for small bore piping in “T” and “Y” configurations that achieve mass flow rates similar to pipeline conditions while minimizing the effects of the test element finger intrusion into the flowing brine stream.

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