摘要:
Additives are used in treatment fluids in subterranean operations to prevent fluid loss within a subterranean formation. A method includes providing a treatment fluid that includes a viscosifying polymer and a solid-liquid phase transition temperature modifier and placing the treatment fluid in a subterranean formation penetrated by a wellbore, wherein the solid-liquid phase temperature modifier is added in an amount to modulate the gelling temperature of the viscosifying polymer to a target temperature.
摘要:
Methods for curing lost circulation, water shutoff and plugging, comprising preparing a composition comprising a non-aqueous carrier fluid, an oil-wetting surfactant, a water-imbibition enhancing surfactant, and a cementitious material; placing the composition within a permeable zone in a subterranean formation; and contacting the composition with water.
摘要:
A method of servicing a wellbore in a subterranean formation comprising preparing a wellbore servicing fluid comprising cement, an aqueous fluid, and a cyclodextrin, a cyclodextrin derivative, or combination thereof; placing the wellbore servicing fluid in the wellbore and allowing the fluid to set. A wellbore semiring fluid comprising cement, aqueous fluid, and a cyclodextrin, cyclodextrin derivative, or combination thereof.
摘要:
A method of servicing a wellbore comprising preparing a composition comprising a calcium aluminate cement, water, and a fluid loss additive wherein the fluid loss additive comprises an acid gelling polymer, placing the composition in the wellbore, and allowing the composition to set. A method of servicing a wellbore comprising placing into a wellbore having a bottom hole static temperature of greater than about 50° F. and/or a pH of from about 3 to about 9 a cement slurry comprising a calcium aluminate cement having an aluminum oxide content of greater than about 60 wt. % based on the total weight of the calcium aluminate cement and an acid-gelling polymer wherein the cement slurry has a fluid loss at 10 cc/10 min. to about 600 cc/30 min.
摘要:
A method of servicing a wellbore comprising providing a degradable polymer and a delayed action construct within a portion of a wellbore, a subterranean formation or both; wherein the delayed action construct comprises (i) a degradation accelerator comprising an alkanolamine, an oligomer of aziridine, a polymer of azridine, a diamine, or combinations thereof, (ii) a solid support, and (iii) an encapsulating material; and placing the wellbore servicing fluid comprising the degradable polymer and delayed action construct into the wellbore, the subterranean formation or both.
摘要:
A variety of methods and compositions are disclosed, including, in one embodiment, a method of cementing comprising: providing an aqueous dispersion comprising deagglomerated inorganic nanotubes and water; preparing a cement composition using the aqueous dispersion; introducing the cement composition into a subterranean formation; and allowing the cement composition to set. Another method comprises a method of cementing comprising: providing an ultrasonicated aqueous dispersion comprising deagglomerated nanoparticles, a dispersing agent, and water; preparing a cement composition using the aqueous dispersion; introducing the cement composition into a subterranean formation; and allowing the cement composition to set.
摘要:
Improved methods of generating gas in and foaming well treating fluids introduced into a subterranean zone are provided. A method of the invention includes the steps of combining one or more gas generating chemicals with the well treating fluid and combining one or more delayed encapsulated activators having selected release times with the well treating fluid containing the gas generating chemicals so that the gas generating chemicals react with the delayed encapsulated oxidizing agent activators and gas and foam are formed in the treating fluid while the treating fluid is being pumped and after being placed in the subterranean zone.
摘要:
A method of servicing a wellbore in a subterranean formation comprising placing a liquid additive composition comprising (i) a liquid non-aqueous continuous phase; (ii) a discontinuous phase comprising a water-soluble polymeric additive; (iii) emulsion-stabilizing and water-wetting surfactants and (iv) a discontinuous phase release control agent. A method of servicing a wellbore comprising placing a wellbore servicing fluid comprising (i) a cementitious material and (ii) a liquid additive composition comprising a fluid loss additive and a discontinuous phase release control agent into the wellbore and/or subterranean formation; and allowing the cement to set. A wellbore servicing composition comprising a cement slurry and a liquid additive composition comprising (i) an acid gelling polymer (ii) an invert emulsion; (iii) a water-wetting surfactant; (iv) an emulsion-stabilizing surfactant; and (v) a discontinuous phase control release agent wherein the acid-gelling polymer is disposed within the invert emulsion.