Well treatment fluids and methods utilizing nano-particles

摘要

Disclosed embodiments relate to well treatment fluids and methods that utilize nano-particles. Exemplary nano-particles are selected from the group consisting of particulate nano-silica, nano-alumina, nano-zinc oxide, nano-boron, nano-iron oxide, and combinations thereof. Embodiments also relate to methods of cementing that include the use of nano-particles. An exemplary method of cementing comprises introducing a cement composition into a subterranean formation, wherein the cement composition comprises cement, water and a particulate nano-silica. Embodiments also relate to use of nano-particles in drilling fluids, completion fluids, simulation fluids, and well clean-up fluids.

主权项

1. A method of treating a subterranean formation comprising:
providing particles, wherein the particles comprise three size ranges disjointed from one another, wherein a first size range includes nano-particles from about 7 nm to about 50 nm, wherein a second size range includes particles from about 0.05 microns to about 0.5 microns, and wherein a third size range includes particles from about 200 microns to about 800 microns, wherein the nano-particles comprise nano-boron, wherein the nano-particles are particulate and non-colloidal and encapsulated in a degradable coating; including the particles in a treatment fluid; introducing into the subterranean formation the treatment fluid at or above a pressure sufficient to create or enhance one or more fractures in the subterranean formation, wherein the nano-particles are included as proppant in the treatment fluid; and depositing at least a portion of the nano-particles in the one or more fractures, wherein the fractures are prevented from fully closing upon the release of pressure and wherein the fractures form conductive channels through which fluids may flow.