Nanoparticle carrier platform and methods for controlled release of subterranean well treatment additives
AssigneeChampionX LLC
InventorsChao Yan, Ross Tomson, Paula Guraieb, Nasser Ghorbani
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Abstract
Nano-sized mixed metal oxide carriers capable of delivering a well treatment additive for a sustained or extended period of time in the environment of use, methods of making the nanoparticles, and uses thereof are described herein. The nanoparticles can have a formula of: A/[Mx1My2Mz3]OnHm where x is 0.03 to 3, y is 0.01 to 0.4, z is 0.01 to 0.4 and n and m are determined by the oxidation states of the other elements, and M1 can be aluminum (Al), gallium (Ga), indium (In), or thallium (Tl). M2 and M3 are not the same and can be a Column 2 metal, Column 14 metal, or a transition metal. A is can be a treatment additive.
Claims23
A mixed metal oxide nanoparticle comprising:
- M1xOnHm;
- M2yOnHm;
- and
- M3yOnHm,
- where
- M1, M2, and M3 are each in the crystal lattice structure of the nanoparticle,
- M1 is a Column 13 element selected from aluminum (Al), gallium (Ga), indium (In), and thallium (Tl),
- M2 and M3 are each individually a Column 2 metal, a Column 14 metal, or a transition metal, with the proviso that M2 and M3 are different, and
- x is 0.03 to 3, y is 0.01 to 0.4, z is 0.01 to 0.4, and n and m for each of M1xOnHm, M2yOnHm, and M3yOnHm is individually determined by the oxidation states of the metals M1, M2, and M3.
Dependencies are inferred from the claim text.