Doctoral Candidate
Yeftamikha Siahaan
Department of Engineering Science & Biomedical Engineering
Mikha is a geothermal geoscientist specialising in non-condensable gas reinjection, using field data, experiments, and modelling to improve reservoir performance and storage efficiency.
About
Mikha is a geothermal geoscientist with professional experience as a geochemist and wellsite geologist. He has worked in several geothermal fields in Indonesia, most recently as a geochemist for the Salak geothermal field. Mikha holds a Master of Energy degree from the University of Auckland and a Bachelor of Geological Engineering degree from Universitas Gadjah Mada.
Research
Mikha’s research focuses on the reinjection of non-condensable gas (NCG) in geothermal systems. By constructing flow and reactive transport models, Mikha aims to investigate the dynamic interplay between fluid and rock within the geothermal reservoir and their effects on rock properties. This research integrates laboratory experiment outcomes, real-world field data from active injection sites, and modelling techniques to explain the evolution of reservoir fluid chemistry, assess the impact of alteration on flow dynamics, and improve NCG storage efficiency through controlled mineralisation.
Address
L4, 70 Symonds St, Grafton, Auckland
New Zealand