THEORETICAL MODEL FOR CALCULATION OF THE EFFECTIVE SHEAR VISCOSITY OF A PSEUDO-PLASTIC MATERIAL IN A FRACTURE
https://doi.org/10.31660/0445-0108-2016-4-77-80
Abstract
The ultimate goal of this work was to develop a method which can be used in mature oil fields to determine the effective viscosity of the granulated gel (PPG) used for plugging the anthropogenic fractures (after FHF). Using the laboratory fracture model the values of constants (apparent constant consistency, ka, and the apparent index of pseudoplasticity, na) were obtained for the equation of viscoelastic liquid. The same constants were used in the derived equation for pressure gradient along the artificial fracture. The gel effective viscosity was calculated based on the equation of the gel motion along the fracture. This equation enables to calculate the effective viscosity of PPG for each size the granulated gel fraction depending on the fracture width and the gel injection rate.
About the Authors
S. V. Ovchinnikova
Industrial University of Tyumen
Russian Federation
Russian Federation
G. H. Ali
Industrial University of Tyumen
Russian Federation
Russian Federation
References
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Review
For citations:
Ovchinnikova S.V., Ali G.H. THEORETICAL MODEL FOR CALCULATION OF THE EFFECTIVE SHEAR VISCOSITY OF A PSEUDO-PLASTIC MATERIAL IN A FRACTURE. Oil and Gas Studies. 2016;(4):77-80. (In Russ.) https://doi.org/10.31660/0445-0108-2016-4-77-80
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