Flow-induced proppant carrying capacity
| Autor: | M Michael Golombok, D David Dogon |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Rheometry 020209 energy 02 engineering and technology Mechanics Geotechnical Engineering and Engineering Geology Viscoelasticity Non-Newtonian fluid Shear rate Fuel Technology 020401 chemical engineering Shear (geology) Settling Particle tracking velocimetry 0202 electrical engineering electronic engineering information engineering Carrying capacity Geotechnical engineering 0204 chemical engineering |
| Zdroj: | Journal of Petroleum Science and Engineering. 146:308-317 |
| ISSN: | 0920-4105 |
| DOI: | 10.1016/j.petrol.2016.04.032 |
| Popis: | A subclass of viscoelastic surfactant fluids are investigated as flow-dependent proppant carrying fluids. Shear-induced structure networks have the potential to eliminate the need for cross linkers and viscosity breakers associated with traditional fluids because they shear-thicken and shear-thin depending on the fluid pump rates in the fracture. Particle tracking velocimetry is used to visualize proppant settling velocity inside a fracture flow cell. We show that settling velocities in high shear flows are reduced by a factor 20 compared to settling in low shear ones and fluids at rest. Couette cell and oscillatory rheometry are used to investigate the induced viscoelasticity. The critical shear rate required for fluid thickening and the succeeding viscosity contrast ratio determine the extra proppant carrying capacity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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