Abstract: A thixotropic composition having a cross-linkable polymer, cross-linking agent, initiator and a thixotropic agent. The thixotropic agent may be a clay or a saccharide polymer. The thixotropic composition may be introduced into a drill string via a batch or on-the-fly process to prevent loss of drilling fluid into the surrounding formation.

Abstract: A method includes providing an expandable metal slurry downhole in a wellbore. The expandable metal slurry includes granules of an expandable metal material suspended or dispersed in a fluid. Further, the method includes positioning the expandable metal slurry within the wellbore such that the granules of the expandable metal material in the expandable metal slurry are activatable to expand and form a seal within the wellbore.

Abstract: Disclosed herein is an article that protects surface textures from abrasion as a result of regular wear and tear. The article comprises a substrate comprising a first texture and a second texture, where the second texture is in a protective relationship with the first texture and protects elements of the first texture from being abraded by an external surface. The first texture comprises a first plurality of features having a first height measured from a base of the substrate and the second texture comprises a second plurality of features having a second height measured from the base of the substrate. The height of the second texture is greater than the height of the first texture. The second texture comprises a plurality of non-uniform cells; and wherein the first texture is disposed on a surface of the second texture.

Abstract: Methods of cementing include providing a geopolymer cement composition that includes a monophase amorphous hydraulic binder material (MAHBM), a metal silicate, an alkaline activator, and a carrier fluid, introducing the geopolymer cement composition into a subterranean formation, and allowing the geopolymer cement composition to set in the subterranean formation. The MAHBM includes silica or alumina core particulates coated with an amorphous calcium silicate hydrate.

Abstract: Expansive cement compositions for use in subterranean wellbores that include a monophase amorphous hydraulic binder material (MAHBM). The MAHBM may include a plurality of particles having a silica core and an amorphous coating substantially surrounding the silica core. The coating may comprise, for example, a plurality of amorphous ?-dicalcium silicate hydrate nanoparticles or microparticles. The MAHBM may be used as an expansion agent in a cement composition or used as an expansive cement by itself.

Abstract: A method of preparing a solid surfactant composite may include: coating a liquid water-wetting surfactant on a solid carrier; and drying the solid carrier to produce the solid surfactant composite. A method may include: introducing a spacer fluid into a wellbore, the spacer fluid comprising a solid surfactant composite; and displacing a fluid in the wellbore using the spacer fluid.

Abstract: Methods, compositions, and tools for use in creating rapidly forming plugs in situ in subterranean formations. In one instance, the disclosure provides a method that includes: placing a first pill comprising a calcium-aluminate-based cement composition at a plug location within the wellbore with the tubing; and placing a second pill comprising an alkaline fluid composition into the wellbore adjacent to the first pill with the tubing. In some cases there is a spacer fluid or spacer device between the first pill and the second pill. In some cases tubing having a mixing device is located at the bottom of the tubing in the wellbore to aid I mixing the first pill and the second pill to facilitate a chemical in situ reaction of the first pill and the second pill. The reaction between the first pill and the second pill forms a set plug at the plug location.

Abstract: A method of preparing a solid surfactant composite may include: coating a liquid water-wetting surfactant on a solid carrier; and drying the solid carrier to produce the solid surfactant composite. A method may include: introducing a spacer fluid into a wellbore, the spacer fluid comprising a solid surfactant composite; and displacing a fluid in the wellbore using the spacer fluid.

Abstract: A variety of systems, methods and compositions are disclosed for delayed release of a resin curing agent. An example method may comprise introducing a treatment fluid comprising a resin and delayed release curing agent particulates into a subterranean formation, wherein the delayed release curing agent particulates comprises a carrier, a curing agent disposed on the carrier, and a coating; degrading the coating; and curing the resin in the subterranean formation.

Abstract: A method may include introducing into a wellbore a resin-based sealant composition comprising: a resin comprising a cycloalkene; and a transition metal compound catalyst; and allowing the resin-based sealant composition to harden in the wellbore.

Abstract: A method includes providing an expandable metal slurry downhole in a wellbore. The expandable metal slurry includes granules of an expandable metal material suspended or dispersed in a fluid. Further, the method includes positioning the expandable metal slurry within the wellbore such that the granules of the expandable metal material in the expandable metal slurry are activatable to expand and form a seal within the wellbore.

Abstract: Cementing compositions including a di- or poly epoxide resin, and amine hardener, and a di- or polyfunctional alkylphosphonate ester fortifier and methods of using the cementing compositions such as in a subterranean zone penetrated by a well bore.

Abstract: Systems, methods, and apparatuses of the present disclosure generally relate to dissolvable plugs for separating fluids in a wellbore. A dissolvable plug includes a first end comprising a first fluid barrier. The first fluid barrier includes a polymer film. The dissolvable plug also includes a second end opposite to the first end. The second end comprises a second fluid barrier. The second fluid barrier comprises a polymer film. The dissolvable plug includes a solid structure made of a sand and salt mixture.

Abstract: Cement compositions for use in subterranean wellbores that include a monophase amorphous hydraulic binder material (MAHBM). The MAHBM may include a plurality of particles having a silica core and an amorphous coating substantially surrounding the silica core. The coating may comprise a plurality of amorphous particles, such as ?-dicalcium silicate hydrate nanoparticles or microparticles. The MAHBM may be used as a strength retrogression mitigating additive in a cement composition or used as a high temperature cement.

Abstract: Cement compositions and associated methods for cementing. An example method includes introducing a cement composition into a wellbore penetrating a subterranean formation, the cement composition comprising a composite material, a cement, and an aqueous fluid. The composite material comprises a monophase amorphous hydraulic binder material and a particulate core. The monophase amorphous hydraulic binder material coats the particulate core. The method further comprises allowing the cement composition to set in the wellbore.

Abstract: Systems, methods, and apparatuses of the present disclosure generally relate to dissolvable plugs for separating fluids in a wellbore. A dissolvable plug includes a first end comprising a first fluid barrier. The first fluid barrier includes a polymer film. The dissolvable plug also includes a second end opposite to the first end. The second end comprises a second fluid barrier. The second fluid barrier comprises a polymer film. The dissolvable plug includes a solid structure made of a sand and salt mixture.

Abstract: Apparatus, systems, and methods for reverse circulation cementing a tubular string in a wellbore. One such method includes reverse circulating cement slurry down an annulus defined between the tubular string and the wellbore. During the reverse circulation, a flow control device located in the tubular string is closed to prevent, or at least reduce, flow of the cement slurry from the annulus into the tubular string. The closure of the flow control device causes a pressure pulse in the wellbore. After the flow control device is closed, the reverse circulation is stopped. During a time interval between the closure of the flow control device and the stoppage of the reverse circulation, a shock absorber associated with the flow control device absorbs the pressure pulse in the wellbore so that a pressure in the wellbore is maintained within an acceptable range.

Abstract: The present disclosure relates to spacer fluids for use in subterranean operations and, more particularly, in certain embodiments, to spacer fluids that include a spacer additive comprising a solid scouring material and a biopolymer gum while being essential free of clay. An example method may comprise spacer fluid comprise water and a spacer additive. The spacer additive may comprise a solid scouring material and a biopolymer gum, wherein the solid scouring material comprises crystalline silica in an amount of about 5 wt. % or less, and wherein the spacer fluid is essentially free of clay. The example method may further comprise and introducing the spacer fluid into a wellbore to displace at least a portion of a first fluid in the wellbore.

Abstract: A bulk dry cement may comprise a cement; a solid particle; and a liquid resin accelerator, wherein the liquid resin accelerator is disposed on a surface of the solid particle.

Abstract: Methods and systems for removing a gel from wellbore equipment. An example method includes introducing a cleaning fluid into the wellbore equipment comprising the gel disposed therein or thereon. The cleaning fluid includes a brine having a total dissolved solids concentration of between about 30K ppm to about 300K ppm. The method further includes contacting the gel with the cleaning fluid in the wellbore equipment, and removing the gel and the cleaning fluid from the wellbore equipment.