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Title: The effects of viscous forces on three-phase relative permeability

Technical Report ·
DOI:https://doi.org/10.2172/6192627· OSTI ID:6192627

The overall objective of Three-Phase Relative Permeability Project (BE9) is to develop guidelines for improving the accuracy of three-phase relative permeability determinations. This report summarizes previous studies and explains the progress made at NIPER on studying the effect of variations in viscous forces on three-phase relative permeabilities by changing the viscosity of both wetting and nonwetting phases. Significant changes were observed due to viscosity variations. An increase in oil viscosity reduced the relative permeability to gas; an increase in brine/(wetting-phase) viscosity reduced the relative permeability to brine. A slight increase in gas relative permeability was also observed. These observations suggest that the viscosities of both oil and water influence three-phase permeability data. During this study, data scatter was sometimes encountered which was comparable to that of published results. The causes of this scatter are outlined in this report and remedial attempts are discussed. 20 refs., 16 figs., 5 tabs.

Research Organization:
National Energy Technology Lab. (NETL), Bartlesville, OK (United States). National Inst. for Petroleum and Energy Research (NIPER)
DOE Contract Number:
FC22-83FE60149
OSTI ID:
6192627
Report Number(s):
NIPER-392; ON: DE89000737
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English