Browsing Department of Petroleum Engineering by Document Types "Doctoral thesis"
Now showing items 21-23 of 23
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Waterflooding of carbonate reservoirs : EOR by wettability alteration
(PhD thesis UiS;50, Doctoral thesis, 2008-05-30)Oil production is generally divided into three stages, primary recovery, secondary recovery and tertiary recovery. In primary recovery, which is usually (but not necessarily) the first production stage, the natural energy ... -
Wellhead Fatigue Analysis : Surface casing cement boundary condition for subsea wellhead fatigue analytical models
(;163, Doctoral thesis, 2012-05-31)Material fatigue is a failure mode that has been known to researchers and engineers since the 19th century. Catastrophic accidents have happened due to fatigue failures of structures, machinery and transport vehicles. ... -
Wettability alteration in carbonates: the effect of water-soluble carboxylic acids in crude oil
(Journal article; Peer reviewed; Doctoral thesis, 2010)Acidic components in crude oil influence the wetting condition through their effect on electrostatic interactions with the mineral surfaces. In this paper, we have extracted water-soluble acids from a crude oil with a high ...