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Quantification of viscoelastic effects of polyacrylamide solutions

Conference · · Soc. Pet. Eng. AIME, Pap.; (United States)
OSTI ID:6827380

Beyond a critical rate of flow in cores the viscoelasticity of polyacrylamide solutions is reflected by shear thickening behaviour. Practical information is provided on the critical flow rate and magnitude of shear thickening and their dependency on core permeability, temperature, molecular weight and concentration of commercial polymers. To describe the onset of shear thickening, critical Deborah numbers were calculated using fluid relaxation times obtained by oscillation rheometry. Using three core-flow parameters, viz. the critical flow rate and two powerlaw exponents, the viscoelastic effects are quantified.

Research Organization:
Koninklijke/Shell E and P Laboratorium
OSTI ID:
6827380
Report Number(s):
CONF-8304162-
Journal Information:
Soc. Pet. Eng. AIME, Pap.; (United States), Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Vol. SPE/DOE 12652; ISSN SEAPA
Country of Publication:
United States
Language:
English