摘要:
The present disclosure relates to elastomer-thermally conductive carbon fiber compositions for use in seals for roller-cone drill bits. The present disclosure further relates to seals formed from such compositions and to roller-cone drill bits containing such seals.
摘要:
A method of servicing a wellbore in a subterranean formation comprising placing a composition comprising a carrier fluid and a degradable polymer into the subterranean formation wherein the degradable polymer comprises polyimide, allowing the degradable polymer to form a diverter plug at a first location in the wellbore or subterranean formation, diverting the flow of a wellbore servicing fluid to a second location in the wellbore or subterranean formation that is different than the first location; and removing all or a portion of the diverter plug by contacting the diverter plug with a degradation accelerator wherein the degradation accelerator comprises an amino alcohol, an amino alcohol precursor, an organic amine, an organic amine precursor or combinations thereof. A wellbore servicing fluid comprising polysuccinimide wherein the wellbores servicing fluid has a pH of less than about 7.
摘要:
Methods for forming a fluid seal in a subterranean formation may comprise: providing a treatment fluid comprising an aqueous carrier fluid, a sealant composition, and a crosslinked polysaccharide composition. The treatment fluid is introduced into a wellbore penetrating a subterranean formation and the crosslinked polysaccharide composition is formed into a viscosified gel in the wellbore. The viscosified gel substantially spans the diameter of the wellbore and holds the sealant composition in place. After forming the crosslinked polysaccharide composition into a viscosified gel in the wellbore, forming a fluid seal in the wellbore with the sealant composition.
摘要:
Suppressing passage of an aqueous fluid in a subterranean formation in preference to passage of an oleaginous fluid can often be desirable. Methods for suppressing the passage of an aqueous fluid in a subterranean formation, particularly a carbonate formation, can comprise: providing a treatment fluid comprising a carrier fluid and a relative permeability modifier comprising a reaction product of 1) an acrylamide polymer, any copolymer thereof, any derivative thereof, any salt thereof, or any combination thereof, and 2) a plurality of amine-containing compounds or any salt thereof, each amine-containing compound containing a primary amine, a secondary amine, or any combination thereof, and the amine-containing compounds being randomly reacted with at least a portion of the amide groups of the acrylamide polymer; and introducing the treatment fluid into a subterranean formation.
摘要:
A method of servicing a wellbore in a subterranean formation comprising placing a wellbore servicing fluid in the wellbore and/or subterranean formation, wherein the wellbore servicing fluid comprises a hydrophobically modified relative permeability modifier, an oxygenated alkylating agent, and an aqueous base fluid, and allowing the wellbore servicing fluid to modify the permeability of at least a portion of the wellbore and/or subterranean formation.
摘要:
A method of servicing a wellbore in a subterranean formation comprising placing a first wellbore servicing fluid comprising a diverter material into a wellbore, allowing the diverter material to form a diverter plug at a first location in the wellbore or subterranean formation, diverting the flow of a second wellbore servicing fluid to a second location in the wellbore or subterranean formation, and contacting the diverter plug with a third wellbore servicing fluid comprising a degradation accelerator and a phase transfer catalyst under conditions sufficient to form one or more degradation products. A method comprising contacting a diverter material with a phase transfer catalyst under conditions suitable to produce a composite material placing downhole a first wellbore servicing fluid comprising the composite material, and placing downhole a second wellbore servicing fluid comprising a degradation accelerator.
摘要:
Methods and compositions for a treatment fluid composition are disclosed for use within a subterranean formation, comprising: a degradable diverting agent, and a Schiff base comprising a degradation accelerator. The treatment fluid may be introduced into a formation and the Schiff base allowed to hydrolytically release the degradation accelerator, allowing the degradation accelerator to degrade the degradable diverting agent.
摘要:
A cement composition for use in an oil or gas well, the cement composition comprises: cement; water; and a polymer, wherein the polymer: (i) comprises a monomer or monomers capable of forming a polyester; and (ii) is capable of providing a thickening time of at least 2 hours at a temperature of 400° F. (204.4° C.) and a pressure of greater than about 500 psi (3.4 MPa) for a test composition consisting essentially of: the cement; the water; and the polymer, and in the same proportions as in the cement composition. A method of cementing in a subterranean formation comprises: introducing the cement composition into the subterranean formation; and allowing the cement composition to set.
摘要:
Fluid additives suitable for use in a wellbore (e.g., a liquid comprising an aqueous miscible fluid, a liquid surfactant, or both) may be converted into a liquid-infiltrated porous silica that is a flowable bulk solid. The flowable bulk solid may then be handled and stored as a traditional solid wellbore additive. For example, the flowable bulk solid may be added to an aqueous fluid to produce a wellbore fluid that is then introduced into a wellbore penetrating a subterranean formation.
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.