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Laboratory and field evaluation of a combined fluid-loss-control additive and gel breaker for fracturing fluids

Journal Article · · SPE (Society of Petroleum Engineers) Production Engineering; (USA)
DOI:https://doi.org/10.2118/18211-PA· OSTI ID:6571993
More than 200% increase in fracture conductivity and permeability was obtained when a new degradable fluid-loss-control additive was used in place of silica flour (SF) in 40-lbm crosslinked hydroxypropyl-guar (HPG) fracturing-fluid systems. The new additive, and organic acid particulate (OAP), slowly degraded into water-soluble monomeric units at temperatures {ge}150{degrees}F after fracture stimulation experiments. The high-acid-content degradation product then acted as an excellent HPG gel breaker and effectively cleaned the proppant packs. As a fluid-loss-control additive, the measured wall-building coefficients were as good as, or better than, those of SF in crosslinked-gel, linear-gel, and N{sub 2}-foam systems. This paper summarizes a 2-year study of the evaluation and application of this new product in fracturing-fluid systems.
OSTI ID:
6571993
Journal Information:
SPE (Society of Petroleum Engineers) Production Engineering; (USA), Journal Name: SPE (Society of Petroleum Engineers) Production Engineering; (USA) Vol. 5:3; ISSN SPENE; ISSN 0885-9221
Country of Publication:
United States
Language:
English