Integrated thickening agent with star-shaped structure as well as preparation method and application of integrated thickening agent

• Main Authors: XU YANG, CHEN YINGHUA, ZOU HONGJIANG, WANG XIAOQING, WANG KUN, YANG FA, WU YUERONG, WANG BINGFEI, WAN XIANGHUI, JIANG WENXUE, WANG XIAOYU, WANG SUOLIANG
• Format: Patent
• Language: Chinese; English
• Published: 07.05.2024
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention discloses an integrated thickening agent with a star-shaped structure and a preparation method and application thereof, the method comprises the following steps: mixing and stirring an acrylamide monomer, an anionic monomer, a cationic monomer and a solvent to obtain a mixed solution I; adding a chain transfer agent into the mixed solution I, and stirring to obtain a mixed solution II; adding an initiator into the mixed solution II, stirring for reaction, and separating after reaction to obtain the integrated thickening agent with the star-shaped structure. The integrated thickening agent with the star-shaped structure has the characteristics of good instant dissolution, temperature resistance and salt tolerance, can be used for preparing fracturing fluid in a tackifying manner in clear water, can also be used for preparing acid fluid in a tackifying manner in a hydrochloric acid solution, can realize integrated fracturing and acidizing construction, is suitable for combined operation of a lower