Thermo-mechanical tensile testing of geothermal casing materials
نویسندگان
چکیده
• Ultra-high temperature geothermal wells can substantially increase the energy yield Tensile tests of traditional and potentially new casing materials are conducted The mechanical properties extend existing literature data is one needed step in constructing reliable ultra-high (>450 °C) have a large potential for increased as compared to conventional high-temperature (200-300 °C), but several research challenges must be resolved before robust operation this range achieved. In study, yield- tensile strength relevant carbon steels corrosion resistant alloys generated on way enable design collapse- capacity casings exposed temperatures up 500-550 °C. experiments set listed NZS 2403:2015 by providing higher different material classes. It found that follow same near linear decay curves 350 °C, then display significant drop at temperatures, particularly lower steels. with high nickel content work harden significantly more than they tend retain their above tested titanium alloy shows low work-hardening 500 °C contrast alloys, do not dynamic strain ageing.
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ژورنال
عنوان ژورنال: Geothermics
سال: 2021
ISSN: ['1879-3576', '0375-6505']
DOI: https://doi.org/10.1016/j.geothermics.2020.101944