In a complex clastic reservoir of glaciodeltaic origin - the target for a steam-drive pilot project - low permeability ‘baffles’ seen in cores are difficult to correlate between wells. Their distribution is estimated probabilistically incorporating analogue outcrop data. The resulting model was used to calculate effective vertical permeability to oil, water and steam and to construct a 2-D reservoir simulation model used to determine optimum injection intervals.
Studies of the relative accuracy of methods of estimating the population at the substate level have generally found that the greatest degree of accuracy is provided by the ratio-correlation, or regression, method. This paper reports on research aimed at evaluating the effectiveness of this method in estimating the age and race composition of populations at the substate level. In addition to the basic multiple regression equation variants such as stratification and the averaging of estimates from simple regression equations are also tested. Surprisingly, for Virginia localities the most satisfactory results are generated by the nonstratified multiple regression equation.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.