Study of continuously mixed crosslinked fracturing fluids with a recirculating flow-loop viscometer

Journal Article · Wed Nov 01 00:00:00 EST 1989 · SPE (Society of Petroleum Engineers) Production Engineering; (USA)

DOI:https://doi.org/10.2118/17044-PA· OSTI ID:5238308

Harris, P C; Harms, W M; Norman, L R ^[1]

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1. Halliburton Services (US)

Continuously mixed gel fracturing fluids were successfully prepared with polymer slurries of guar, derivatized guar, and derivatized cellulose. The authors describe the rheological behavior of the continuously mixed fluids measured on a recirculating flow-loop viscometer over a temperature range of 80 to 300{sup 0}F (27 to 149{sup 0}C). Rapid and complete base-gel hydration required proper pH control and high mixing energy. Oil-based polymer slurries allowed rapid hydration rates sufficient to achieve performance from a crosslinked fluid prepared during a completely continuous operation. Water-based polymer slurries required a short holding period for complete hydration. Delayed-crosslink-gel viscosity was influenced by shear rate and the degree of base-gel hydration. Chemical factors influencing viscosity development included base-gel concentration, crosslinking-agent concentration, fluid pH, and ionic strength. Hydration time and pH requirements may differ for specific polymer/crosslinker pairs.

• OSTI ID: 5238308
• Journal Information: SPE (Society of Petroleum Engineers) Production Engineering; (USA), Vol. 4:4; ISSN 0885-9221
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
FRACTURING FLUIDS
RHEOLOGY
OIL WELLS
POLYMERS
CHEMISTRY
CROSS-LINKING
FLUID FLOW
GELS
PH VALUE
SLURRIES
VISCOSITY
WELL STIMULATION
CHEMICAL REACTIONS
COLLOIDS
DISPERSIONS
FLUIDS
MIXTURES
POLYMERIZATION
STIMULATION
SUSPENSIONS
WELLS
020300* - Petroleum- Drilling & Production
400201 - Chemical & Physicochemical Properties