This invention relates to an adaptable Geopolymer cement composition for application in oil and gas wells having a wide range of downhole temperatures. The base Geopolymer cement composition has an acceptable rheology of below 200 cP and can be tailored by the inclusion of various chemicals to control properties such as thickening time over a wide range of temperatures and densities. The disclosed Geopolymer cement composition is pumpable, mixable and stable. The composition can also be adapted to have expandable and swellable properties.

A grout used in horizontal directional drilling including a silica material present in an amount of from about 50% to about 70%, bentonite present in an amount of from about 20% to about 30%, a carbon source present in an amount of from about 5% to about 15%, an inorganic alkaline material present in an amount of from about 0% to about 3%, a fluid loss additive present in an amount of from about 0% to about 1%, a polymeric dispersant present in an amount of from about 0% to about 1%, and a polymeric flow enhancer present in an amount of from about 0% to about 0.5%, all by weight of the grout composition. Methods utilizing the grout include placing conduit in a hole, forming the grout slurry, and placing the grout slurry adjacent to the conduct.

A grout used in horizontal directional drilling including a silica material present in an amount of from about 50% to about 70%, bentonite present in an amount of from about 20% to about 30%, a carbon source present in an amount of from about 5% to about 15%, an inorganic alkaline material present in an amount of from about 0% to about 3%, a fluid loss additive present in an amount of from about 0% to about 1%, a polymeric dispersant present in an amount of from about 0% to about 1%, and a polymeric flow enhancer present in an amount of from about 0% to about 0.5%, all by weight of the grout composition. Methods utilizing the grout include placing conduit in a hole, forming the grout slurry, and placing the grout slurry adjacent to the conduct.

The present invention relates to the use of amphiphilic sequenced copolymers as an agent for controlling the filtrate in a fluid (F) injected under pressure into an underground formation, comprising—at least one chain (C) soluble in the fluid (F); and—at least one block (B) that is insoluble in the fluid (F).

The present invention relates to the use of amphiphilic sequenced copolymers as an agent for controlling the filtrate in a fluid (F) injected under pressure into an underground formation, comprising—at least one chain (C) soluble in the fluid (F); and—at least one block (B) that is insoluble in the fluid (F).

The present invention relates to the use of a sequenced polymer as an agent for monitoring the filtrate and the rheology of a fluid injected under pressure into an oil rock, wherein the fluid comprises solid particles and/or is brought into contact with solid particles within the oil rock after being injected, the polymer comprising: a first block which is adsorbed onto at least some of the particles; and a second block having a composition other than that of the first block and a mean molecular weight of more than 10,000 g/mol, for example more than 100,000 g/mol, and which is soluble in the fluid.

The present invention relates to the use of a sequenced polymer as an agent for monitoring the filtrate and the rheology of a fluid injected under pressure into an oil rock, wherein the fluid comprises solid particles and/or is brought into contact with solid particles within the oil rock after being injected, the polymer comprising: a first block which is adsorbed onto at least some of the particles; and a second block having a composition other than that of the first block and a mean molecular weight of more than 10,000 g/mol, for example more than 100,000 g/mol, and which is soluble in the fluid.

An additive, in particular a shrinkage reducing agent, for mineral binder compositions including at least one super absorbant polymer SAP and at least one defoamer D. Further, a mineral binder composition including the additive, processes and methods for the mixing thereof, and to hardened articles obtainable therefrom.

An additive, in particular a shrinkage reducing agent, for mineral binder compositions including at least one super absorbant polymer SAP and at least one defoamer D. Further, a mineral binder composition including the additive, processes and methods for the mixing thereof, and to hardened articles obtainable therefrom.

The present disclosure provides polymeric systems that exhibit enhanced viscosity and proppant transport properties while providing enhanced particle dispersion capabilities.