Effect of synthetic drilling fluid base oils on asphaltene stability and wetting in sandstone cores
作者： Zhang , Wang , Norman R. Morrow , Jill S. Buckley
DOI: 10.1021/EF049777U
关键词:
摘要: Tests of imbibition rates in Berea sandstone cores have been used to examine the wettability effects displacement crude oils with a number synthetic base oils. In all cases examined date, products that flocculated asphaltenes from also caused water-wet become markedly less or even oil-wet. Relatively minor on wetting were observed did not destabilize asphaltenes. A simple diagnostic test asphaltene stability can be identify specific oil/base oil pairs precipitate
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