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The oil industry suffered a severe set-back as result of the accident in the Gulf of Mexico in 2009, which showed clearly the public awareness and environmental aspects related to such accidents. A concept based on subsea tunnels and caverns has been developed for an offshore oil field in Northern...

Successful utilization of petroleum resources requires proper monitoring of the subsurface, where time-lapse seismic is a prominent source of knowledge. The R-factor model is commonly used to model the strain sensitivity of 4D seismic data. Field cores are systematically tested with different...

Since 1988, the International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM) Technical Committees (TCs) have been seeking to establish universally applicable test methods for assessing the alkali-reactivity potential of aggregates, and from later on, for...

Th is paper outlines the historical developments in research on Alkali Aggregate Reactions (AAR) in Norway during the past 25 years. Norwegian regulations have proven to be valuable tools for mitigating AAR. A three step test procedure includes; the petrographical analysis, the accelerated mortar...

Proper correlations between formation mechanical properties and acoustic data is essential for field rock mechanical analysis, and it has thereby a great significance to field operations such as hydraulic fracturing, wellbore stability during drilling, sand production risk evaluation, compaction...

Decisions regarding problem conceptualization, search approach, and how best to parametrize optimization methods for practical application are key to successful implementation of optimization approaches within georesources field development projects. This work provides decision support regarding the...

The formations above a producing reservoir can exhibit large mechanical changes, creating a risk of significant subsidence and loss of rock integrity. These changes can be monitored by time-lapse seismic acquisition, which measures the corresponding velocity changes via time-shifts. Third-order...

The presence of sand in a production stream has been a common issue for wells drilled in high permeability sandstone formations. In the case of gas producing reservoirs, sand production can be particularly hazardous due to the high gas velocities. It can among others lead to erosion of downhole...

Pore pressure changes during hydrocarbon extraction from geological reservoirs or CO₂ injection into a reservoir lead to significant stress changes in the reservoir and surrounding rock. Such stress changes can be described by stress path. This work aims to understand the factors influencing stress...