| abstract |
The invention relates to a zwitterionic polymer anti-calcium salt anti-temperature tackifier, which is made of zwitterionic monomer, N-alkylacrylamide, N-vinylamide, silane coupling agent and anti-salt soil as raw materials, and undergoes a reverse phase process. Emulsion polymerization polymerization obtained. The zwitterionic polymer anti-calcium salt anti-temperature and viscosity-increasing agent of the present invention can be applied to high calcium salt drilling fluid, and has the characteristics of polyelectrolyte that is easy to disperse, dissolve, and easy to stick, and has good temperature resistance and easy reaction process. Control, simple operation and other advantages. |