The present application relates to coated silica particles, compositions containing the coated silica particles, and methods for using these compositions in subterranean formations. The coated silica particle includes a cationic species non-covalently bound to an outer surface of the particle. The particle can include a nanoparticle.

A method of controlling sand production in a sandstone reservoir comprising providing (i) an aminosilane and (ii) a polymeric linking agent comprising monomeric units having pendent functional groups selected from the group consisting of carboxylic acids, carboxylic acid esters and amides, wherein a plurality of the pendent functional groups are reacted with the amino group of the aminosilane by a process selected from the group consisting of aminolysis of carboxylic acid ester groups, Mannich reaction between the amino group of the aminosilane and a plurality of at least one of carboxylic acid and amide pendent groups in the presence of an aldehyde activating agent or combination thereof, contacting the aminosilane and polymeric linking agent with the sandstone reservoir to bond the silane group of the aminosilane with particles of sand and provide agglomeration as a result of covalent bonding of the linking agent with a plurality of aminosilanes.

Materials and methods for generating isolated pillar structures and conductive channels within hydrofracturing reservoirs are provided herein.

Systems and methods for treating subterranean formations using deagglomerated inorganic clay particles are provided. In one embodiment, the methods comprise: providing a treatment fluid that comprises a base fluid, a consolidating agent, and a deagglomerated inorganic clay particle; introducing the treatment fluid into at least a portion of a subterranean formation so as to contact unconsolidated particles within the subterranean formation with the treatment fluid; and allowing the consolidating agent and the deagglomerated inorganic clay particle to consolidate at least a portion of the unconsolidated particulates in the portion of the subterranean formation.

In some examples a method of well treatment may comprise: providing a treatment fluid comprising a microemulsified resin additive, wherein the microemulsified resin additive comprises a continuous phase and a discontinuous phase, wherein the continuous phase comprises an aqueous liquid, wherein the discontinuous phase is in form of micelles of about 200 nm or less in diameter and comprises a resin; introducing the treatment fluid into a subterranean formation penetrated by a wellbore; and allowing the treatment fluid to set in the subterranean formation.

A method of treating a subterranean formation including introducing a preflush solution comprising a first aqueous base fluid and a surfactant onto the face of a fracture in a subterranean formation with particulates in the fracture; introducing a stabilizing composition onto the fracture face of the formation and onto the particulates proximate the fracture face, the composition including a second aqueous-based fluid; a silane-based resin; and a silane-based curing agent; allowing the stabilizing composition to consolidate the particulates proximate the fracture face, thereby stabilizing the fracture face and proximate particulates in the fracture. A method includes introducing a conformance treatment fluid into at least a portion of a subterranean formation, said treatment fluid including: an aqueous-based fluid; a silane-based resin; and a silane-based curing agent; and allowing the conformance treatment fluid to at least partially seal the pores of the formation.

Systems and methods for treating formation intervals including forming a low permeability layer on a surface of the interval and pumping a treating fluid, where the treatment fluid is diverted through the layer permitting improved treatment uniformity across the formation or intervaland permitting a longer interval to be treated, where the layer comprises self-degradable material that degrade over time without harm to the formation or interval surfaces.

The present application relates to coated silica particles, compositions containing the coated silica particles, and methods for using these compositions in subterranean formations. The coated silica particle includes a cationic species non-covalently bound to an outer surface of the particle. The particle can include a nanoparticle.

A method of making a proppant-gel matrix comprising: a) hydrating a gelling agent to form a hydrated gelling agent; b) adding a basic compound to the hydrated gelling agent to form a basic hydrated gelling agent having a pH in the range of 11.5 to 14.0; c) mixing the basic hydrated gelling agent and a proppant to form a basic hydrated gelling system; and d) adding a crosslinking agent to the basic hydrated gelling system to form the proppant-gel matrix, is disclosed. The proppant-gel matrix can then be used as a fracturing fluid in a hydraulic fracturing process.

A polymerizable chemical system for consolidating particulates in a subterranean formation including a liquid resin, a curing agent, and a permeability enhancing additive. The chemical system is a homogenous composition that polymerizes to forms a solid upon heating at a temperature greater than 60 C. Consolidating particulates in a subterranean formation includes providing a polymerizable chemical system comprising a liquid resin, a curing agent, and a permeability enhancing additive to a subterranean formation, and polymerizing the polymerizable chemical system to consolidate particulates in the formation to yield a porous consolidated particulates pack.