Rheological characterization of fracturing fluids using laser anemometry
This paper describes the use of a novel technique, Laser Doppler Anemometry, to obtain information on fracturing fluid behaviour. This technique permits one to measure the fluid velocity at any point in a flow system. By scanning across the flow geometry, it is possible to obtain the velocity profile, which is in turn related to the rheology of the fluid. At low shear rates, velocity profiles obtained for aqueous solutions of hydroxypropyl guar showed significant deviations from those calculated using known power law parameters. The investigation was extended by conducting a series of rheological experiments using rotational and capillary viscometers across a wide shear-rate range (10/sup -2/ to 10/sup 3/ sec-1). The data have been fitted to a three parameter Ellis model and the velocity profiles calculated using these data agree well with experimental ones. The immediate results of this work are of interest in proppant transport modelling, and correlate well with published data which show that apparent viscosities obtained from proppant settling velocities are lower than those obtained from power law parameters.
- Research Organization:
- Etudes et Fabrication Dowell Schlumberger
- OSTI ID:
- 5363758
- Report Number(s):
- CONF-8310121-
- Journal Information:
- Soc. Pet. Eng. AIME, Pap.; (United States), Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Vol. SPE 12030; ISSN SEAPA
- Country of Publication:
- United States
- Language:
- English
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Plowshare-- (-1989)
ANEMOMETERS
BENCH-SCALE EXPERIMENTS
COMMINUTION
DOPPLER EFFECT
FLOW RATE
FLUID FLOW
FLUIDS
FRACTURING
FRACTURING FLUIDS
HYDRAULIC FRACTURING
LASERS
MEASURING INSTRUMENTS
MEASURING METHODS
NATURAL GAS WELLS
OIL WELLS
RHEOLOGY
SHEAR
STIMULATION
VISCOSIMETERS
WELL STIMULATION
WELLS