摘要:
Embodiments relate to the use of alkali aluminates and alkali silicates with cement kiln dust to form a settable composition for use in subterranean operations. An embodiment provides a method comprising: introducing a settable composition comprising cement kiln dust, an alkali aluminate, an alkali silicate, and an aqueous carrier fluid into a subterranean formation; and allowing the settable composition to set and thereby reduce fluid flow through a portion of the subterranean formation.
摘要:
A method for producing a reaction product including at least one synthetic formulation that carbonates sufficiently, said method comprising: providing a first raw material, having a first concentration of M; providing a second raw material, having a second concentration of Me; and mixing the first raw material and the second raw material to produce a reaction product that includes at least one synthetic formulation having the general formula M a Me b O c , MaMeb(OH) d , M a Me b O c (OH) d or M a Me b O c (OH) d (H20) e , wherein M comprises at least one metal that can react to form a carbonate and Me is at least one element that can form an oxide during the carbonation reaction, wherein the at least one synthetic formulation is capable of undergoing a carbonation reaction, and wherein the at least one synthetic formulation is capable of undergoing volume change during the carbonation reaction.
摘要:
Methods and compositions for the treatment of subterranean formations, and more specifically, treatment fluids containing pumicite and methods of using these treatment fluids in subterranean formations, are provided. An example of a method is a method of displacing a fluid in a well bore. Another example of a method is a method of separating fluids in a well bore in a subterranean formation. An example of a composition is a settable spacer fluid comprising pumicite, an activating agent, and a base fluid.
摘要:
Methods and compositions for the treatment of subterranean formations, and more specifically, treatment fluids containing pumicite and methods of using these treatment fluids in subterranean formations, are provided. An example of a method is a method of displacing a fluid in a well bore. Another example of a method is a method of separating fluids in a well bore in a subterranean formation. An example of a composition is a settable spacer fluid comprising pumicite, an activating agent, and a base fluid.
摘要:
A method for producing a reaction product including at least one synthetic formulation that carbonates sufficiently, said method comprising: providing a first raw material, having a first concentration of M; providing a second raw material, having a second concentration of Me; and mixing the first raw material and the second raw material to produce a reaction product that includes at least one synthetic formulation having the general formula MaMebOc, MaMeb(OH)d, MaMebOc(OH)d or MaMebO(OH)d•(H2O)e, wherein M comprises at least one metal that can react to form a carbonate and Me is at least one element that can form an oxide during the carbonation reaction, wherein the at least one synthetic formulation is capable of undergoing a carbonation reaction, and wherein the at least one synthetic formulation is capable of undergoing volume change during the carbonation reaction.
摘要:
Embodiments relate to the use of alkali aluminates and alkali silicates with cement kiln dust to form a settable composition for use in subterranean operations. An embodiment provides a method comprising: introducing a settable composition comprising cement kiln dust, an alkali aluminate, an alkali silicate, and an aqueous carrier fluid into a subterranean formation; and allowing the settable composition to set and thereby reduce fluid flow through a portion of the subterranean formation.
摘要:
The invention relates to a process for producing solid compositions containing calcium silicate hydrate (C-S-H) and a water-soluble comb polymer which is suitable as plasticizer for hydraulic binders, wherein the following process steps are carried out: a) contacting of an aqueous C-S-H-containing suspension with at least one comb polymer, b) optionally setting a suitable solids content of the product from step a) by dilution with water and c) drying of the product from step a) or b). The process products which can be obtained, the use thereof in, in particular, building material mixtures containing cement, the use as grinding aid in the production of cement and corresponding building material mixtures are likewise provided.
摘要:
The invention relates to compositions containing calcium silicate hydrate and at least one (co)polymer having carboxylic acid groups and/or carboxylate groups and sulphonic acid groups and/or sulphonate groups, wherein the molar ratio of the number of carboxylic acid groups and/or carboxylate groups to the sulphonic acid groups and/or sulphonate groups is from 1/20 to 20/1. The invention further relates to processes for producing the aqueous and also solid compositions, their use as curing accelerators in building material mixtures containing cement, slag sand, fly ash, silica dust, metakaolin, natural pozzuolanas, calcined oil shales and/or calcium aluminate cement and the use as grinding aid in the production of cement.