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US 2017/0283681 A1Published application
Use of nanoparticles as lubricity additive in well fluids
AssigneeNfluids Inc.
InventorsMaen Moh'd HUSEIN, Mohammad Ferdous ZAKARIA, Geir HARELAND
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Abstract
A use of nanoparticles in a well fluid for improved lubricity is disclosed herein. The nanoparticles are present in the well fluid in low amounts below 5 wt %. The nanoparticles may be formed ex situ and added to the fluid or in situ in the fluid. In one aspect, the well fluid is a drilling fluid. In a further aspect, the well fluid is an invert emulsion based fluid or an aqueous based fluid.
Claims26
1-34. (canceled)
A method of making a well fluid, the method comprising steps of:
- forming an emulsion that includes an oil phase and a water phase;
- preparing a plurality of precursor materials separately from the emulsion, the precursor materials including hydrophilic reagents that are capable of reacting
- to form nanoparticles upon mixing of the precursor materials,
- adding the precursor materials to the emulsion;
- and
- thereafter mixing to distribute reagents from the plurality of water-based precursor solutions for in-situ reaction within the water phase,
- the nanoparticles formed by virtue of the in-situ reaction being present in an amount of less than 5% by weight of the well fluid but which are also effective amounts to improve lubricity of the well fluid.
4 more elements
Dependencies are inferred from the claim text.