Ultra-high temperature geothermal wells (>450 °C) have a large potential for increased energy yield as compared to conventional high-temperature geothermal wells (200-300 °C), but several research challenges must be resolved before robust operation in this temperature range can be achieved. In this...

A common cause of casing failure in geothermal wells are due to collapse caused by compressive hoop stress that occurs during heating of the well. In traditional design, the empirical formulas from API TR 5C3 are applied for determining the casing collapse capacity. However, the experimental data...

The Northern Lights onshore terminal will initially receive CO₂ transported by ship tankers from industrial source sites located in south-eastern Norway and transport CO₂ via a 12 ¾” OD offshore pipeline for injection into the Johansen storage reservoir, located south of the Troll field. The CO...

A novel fracture calibration method is presented for material models applied in finite element analysis of pipeline steels exposed to running ductile fracture. The calibration is based on the drop-weight tear test which is commonly applied for qualification of pipeline steels. The method is applied...

The present study investigated experimentally and numerically the structural behaviour of two chamber extruded profiles in AA6060-T7 alloy subjected to axial crushing under quasi-static loading conditions. Experimental tests were performed (including uniaxial tests, in-plane shear test and plane...