The present invention relates to processes for preparing a copolymer, especially a dispersant for solid particles, in particular a dispersant for mineral binder compositions, wherein ionizable monomers m1 and side chain-bearing monomers m2 are polymerized by nitroxide-mediated solution polymerization to give a copolymer, wherein the polymerization is conducted in the presence of an agent comprising a carboxyl group-bearing and phosphated alkoxy amine.

A method of excluding particles entrained in formation fluids includes introducing a tubular into a wellbore, forming a sand control device formed from a curable inorganic cementitious mixture infused with an engineered degradable material about the tubular, introducing an external stimulus onto the sand control device causing the degradable material to dissolve, and flowing formation fluids through the sand control device into the tubular.

A method of excluding particles entrained in formation fluids includes introducing a tubular into a wellbore, forming a sand control device formed from a curable inorganic cementitious mixture infused with an engineered degradable material about the tubular, introducing an external stimulus onto the sand control device causing the degradable material to dissolve, and flowing formation fluids through the sand control device into the tubular.

A method of forming a sand control device comprising: infusing a curable inorganic mixture with a degradable material configured to disintegrate upon exposure to an external stimuli; forming the curable inorganic mixture infused with the degradable material about a tubular; and curing the curable inorganic mixture infused with the degradable material.

A method of forming a sand control device comprising: infusing a curable inorganic mixture with a degradable material configured to disintegrate upon exposure to an external stimuli; forming the curable inorganic mixture infused with the degradable material about a tubular; and curing the curable inorganic mixture infused with the degradable material.

The invention relates to a composition for inorganic binders, comprising at least one ketone-formaldehyde condensation product on the basis of a cyclic ketone and at least one anionic or nonionic surfactant and/or a thickener, and also to building material mixtures which comprise this composition, and to the use of the composition. The compositions improve the applications properties of the binder formulations.

Various embodiments disclosed relate to a curable composition and resin for treatment of a subterranean formation. In various embodiments, the present invention provides a method of treating a subterranean formation. The method can include placing in a subterranean formation a curable composition. The curable composition can include an epoxy silane monomer, a hardener, and carrier fluid. The curable composition can include an epoxy monomer, an amine silane hardener, and carrier fluid. The method can also include curing the curable composition to form an epoxy silane resin.

The invention relates to a dry mix of a thermally insulating fill material for backfilling and/or filling. The fill material includes a cement-based binder and a thermally insulating material, and the thermally insulating material is newly foamed monograin polystyrene beads.

Various embodiments disclosed relate to a curable composition and resin for treatment of a subterranean formation. In various embodiments, the present invention provides a method of treating a subterranean formation. The method can include placing in a subterranean formation a curable composition. The curable composition can include an epoxy silane monomer, a hardener, and carrier fluid. The curable composition can include an epoxy monomer, an amine silane hardener, and carrier fluid. The method can also include curing the curable composition to form an epoxy silane resin.

Fibers to be added to concrete to improve its properties are coated with an alkali-insoluble polymer, to provide adhesion of the fibers to the concrete. In a further improvement, nanoparticles are dispersed in an alkali-soluble polymer coating, and this is used to coat the fibers. When the fibers are mixed into the concrete mix, the nanoparticles are dispersed throughout the concrete, avoiding problems from agglomeration of the nanoparticles if simply added to the concrete mix.