Analysis of Heavy-Oil Immiscible CO2 Tertiary Coreflood Data

Autor:	Alexander Costa, E.H. Mayer, Allan Spivak, R.C. Earlougher
Rok vydání:	1988
Předmět:	Free gas Petroleum engineering Process Chemistry and Technology Well stimulation Mineralogy Petroleum reservoir Improved performance chemistry.chemical_compound chemistry Petroleum Fluid injection Energy source Saturation (chemistry) Geology
Zdroj:	SPE Reservoir Engineering. 3:69-75
ISSN:	2469-9683 0885-9248
Popis:	Summary This paper describes the results of a series of tertiary, immiscible, CO2 corefloods of Wilmington field Pliocene reservoir rock containing heavy oil (±14°API [+0.97 g/cm3] and±480 cp [+480 mPa-s]). An initial set of corefloods defined the recovery potential of the CO2 injection, while a series of later tests served to define the process more accurately as applied in the field. In an attempt to understand the displacement mechanism, simulator matching of one of the later, more refined groups of corefloods was performed. The corefloods and simulator work indicate that the incremental recovery is more than can be accounted for by oil-viscosity reduction and crude-oil swelling. The improved performance is attributed to more favorable displacement characteristics and the presence of a free gas saturation in the cores.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a391dc60094f7fe22f966eba3afea25c https://doi.org/10.2118/14901-pa Zobrazit plný text záznamu