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AbstractNumerical simulation that provides history match of a SAGD pilot in a Cold Lake type reservoir may be expanded to include steaming of an offset well. In this theoretical configuration, the offset well is equidepth and parallel to, but 50 metres away, from the SAGD producer. After three years of SAGD operation, steam stimulation of the offset well with concomitant increased steaming of the SAGD injector provides early steam communication between the SAGD steam chest and the offset well. The result is markedly increased rate of production of bitumen and reduced steam-oil ratio. Mindful of such results, laboratory work is being undertaken to verify, and understand these results. We also encourage field-pilot testing of this process.
A common problem, which is critical to deep disposal of wastewaters, is deposition of scale in the pipelines, in the tubing, in the disposal well's perforations and in the receiving formation. Such deposition is attributed to incompatibility of the wastewaters being mixed or of mixture's interaction with the formation's rock and connate water. A generally good practice prior to injection is to do laboratory experiments to test the compatibility of these wastewaters.However, experience shows that compatibility tests do not reliably give an accurate indication of precipitation. Here, we show how to develop relevant correlations, which are useful for predicting precipitation of ions from such mixtures and then provide a practical example, which is for disposing different wastewaters collected from southwest Iranian desalting plants.
Char obtained from the Great Canadian Oil Sands (GCOS) Corporation, Fort McMurray, Alberta, was burned in the Canadian Combustion Research Laboratory (CCRL) pilot-scale research boiler. When the boiler was equipped with a large, refractory-lined bottom, it
duplicated the amount of carbon in fly,ash from the steam generators which burn char at the GCOS plant. This indicates that the research boiler can be used to predict the performance of chars in operating steam generators
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