Well servicing fluid
First Claim
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1. A method of servicing a wellbore, the method comprising:
- forming a nano-dispersion well servicing fluid by blending an aqueous base continuous phase and nanoparticles comprising at least one material chosen from aluminum oxides, aluminum hydroxides, aluminum hydroxyoxides, zirconium oxides, zirconium hydroxides, and zirconium hydroxyoxides, the concentration of the nanoparticles being greater than 0.5% by weight based on the total weight of the nano-dispersion well servicing fluid, the nanoparticles having a crystallized size of 100 nm or less in diameter prior to being dispersed, the nanoparticles forming a dispersion in the aqueous base, and the nanoparticles carrying a charge resulting in a Zeta potential in the well servicing fluid;
decreasing the Zeta potential of the well servicing fluid closer to zero and thereby increasing the viscosity; and
introducing the well servicing fluid with the increased viscosity into the wellbore.
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Abstract
A nano-dispersion well servicing fluid is formulated with components comprising: nanoparticles comprising at least one material chosen from aluminum oxides, aluminum hydroxides, aluminum hydroxyoxides, zirconium oxides, zirconium hydroxides, zirconium hydroxyoxides, wherein the concentration of nanoparticles is greater than 0.5% by weight based on the total weight of the nano-dispersion well servicing fluid. The well servicing fluid also comprises an aqueous base continuous phase. Methods of employing the nano-dispersion to service a wellbore are also disclosed.
40 Citations
25 Claims
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1. A method of servicing a wellbore, the method comprising:
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forming a nano-dispersion well servicing fluid by blending an aqueous base continuous phase and nanoparticles comprising at least one material chosen from aluminum oxides, aluminum hydroxides, aluminum hydroxyoxides, zirconium oxides, zirconium hydroxides, and zirconium hydroxyoxides, the concentration of the nanoparticles being greater than 0.5% by weight based on the total weight of the nano-dispersion well servicing fluid, the nanoparticles having a crystallized size of 100 nm or less in diameter prior to being dispersed, the nanoparticles forming a dispersion in the aqueous base, and the nanoparticles carrying a charge resulting in a Zeta potential in the well servicing fluid; decreasing the Zeta potential of the well servicing fluid closer to zero and thereby increasing the viscosity; and introducing the well servicing fluid with the increased viscosity into the wellbore. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of servicing a wellbore, the method comprising:
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forming a nano-dispersion well servicing fluid by blending an aqueous base continuous phase and nanoparticles comprising at least one material chosen from aluminum oxides, aluminum hydroxides, aluminum hydroxyoxides, zirconium oxides, zirconium hydroxides, and zirconium hydroxyoxides, the concentration of the nanoparticles being greater than 0.5% by weight based on the total weight of the nano-dispersion well servicing fluid, the nanoparticles having a crystallized size of 100 nm or less in diameter prior to being dispersed, and the nanoparticles forming a dispersion in the aqueous base; including proppant operable for fracturing or gravel operable for gravel packing in the well servicing fluid; introducing the well servicing fluid into the wellbore, the nanoparticles carrying a charge resulting in a Zeta potential in the well servicing fluid and the nanoparticles functioning independent of the proppant and gravel; decreasing the Zeta potential of the well servicing fluid and thereby increasing the viscosity; after decreasing the Zeta potential and increasing the viscosity, fracturing or gravel packing the wellbore; after fracturing or gravel packing, increasing the Zeta potential of the well servicing fluid in the wellbore and thereby decreasing the viscosity; and after decreasing the viscosity, recovering the well servicing fluid from the wellbore. - View Dependent Claims (23, 24, 25)
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Specification