Production method of tackifying encapsulation agent for drilling fluid

• Main Authors: WANG MAOREN, WANG CHEN, FENG JIANJIAN
• Format: Patent
• Language: Chinese; English
• Published: 16.04.2014
• 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 relates to a production method of a tackifying encapsulation agent for a drilling fluid, and belongs to the technical field of petrochemical industry. The tackifying encapsulation agent is prepared from acrylamide (AM), acrylic acid kalium (AAK), 2-acrylamide-2-methyl propane sulfoacid (AMPS) and epoxypropyl trimethyl ammonium chloride by quaternary copolymerization synthesis through the adoption of an opposite phase emulsifying polymerization process, has good tackifying and encapsulating effects, is good in temperature resisting performance, suitable for a water-based drilling fluid, and particularly suitable for a water-based drilling fluid without a solid phase or a clay phase, and shows relatively strong tackifying and encapsulating abilities in brine slurry such as organic salt and kali salt.