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Title: Rheological study of foam fracturing fluids using nitrogen and carbon dioxide

Journal Article · · SPE (Society of Petroleum Engineers) Product. Eng.; (United States)
DOI:https://doi.org/10.2118/12026-PA· OSTI ID:5400508

A practical mathematical model based on experimental data is presented for calculation of rheological properties of N/sub 2/ and CO/sub 2/ foam stimulation fluids. The laminar flow model is a yield pseudoplastic type, with viscosity dependent on foam quality, yield point, base liquid consistency index (K'), and flow behavior index (n'). Turbulent foam fluid data were analyzed with API RP39 procedures but were modified to include variable density effects of foam fluids. Water-based apparent viscosities compare closely to Mitchell's Bingham plastic model at high shear rates. The yield pseudoplastic model also includes viscous effects of gelling agents and measurement at much lower shear rates. Comparison of predicted pipe friction was made to actual field wellhead pressures with good agreement.

Research Organization:
Halliburton Services
OSTI ID:
5400508
Journal Information:
SPE (Society of Petroleum Engineers) Product. Eng.; (United States), Vol. 1:1
Country of Publication:
United States
Language:
English