2 results about "Bentonite" patented technology

The application provides a kind of oil-based drilling and completion fluid suspending stabilizer and a preparation method thereof.The oil-based drilling and completion fluid suspending stabilizer includes modified bentonite, modified nano-silica and nano-calcium carbonate, wherein the modified bentonite is obtained by using a first silane coupling agent for first modification treatment of bentonite, and the modified nano-silica is obtained by using a second silane coupling agent for second modification treatment of nano-silica.The oil-based drilling and completion fluid suspending stabilizer of the application enhances the suspending stability of oil-based drilling and completion fluid.

The invention relates to a gel ridge stone-based double-layer structure material and a preparation method thereof, and belongs to the technical field of new materials. The invention aims to solve the technical problems of no adsorption performance on anion pollutants and low use additional value of the existing gel ridge stone. According to the invention, a double-layer composite structure material is formed by in-situ growth of hydrotalcite nanosheets on the surface of a gelled stone serving as a growth template through a hydrothermal method. The preparation method comprises the following steps: preparing a precursor solution, dispersing the gelled stone, carrying out hydrothermal reaction, washing, drying and the like. The material has the lamellar characteristics of the kaolinite and the hydrotalcite, can adsorb zwitterionic pollutants such as methyl orange and methylene blue at the same time and can load zwitterionic corrosion inhibitors such as NO2 <-> and Ce < 3 + >, the adsorption capacities can reach 78-86 mg / g and 63-72 mg / g respectively, the functional diversity and additional value of the kaolinite are remarkably improved, and the application potential of the kaolinite in the fields of water purification and corrosion inhibition is expanded.