Development and application of water-based wax crystal modifier type paraffin inhibitor.

In order to solve the disadvantages of toxic, combustible, lower density of oil-based paraffin remover, and low paraffin removal efficiency and control effect poor stability of emulsion paraffin inhibitor of water-base paraffin remover, based on the structure of hydrophilic and/or lipophilic group in surfactant, the wax crystal modifier dispersed in water homogeneously. Waterbase wax crystal modifier type paraffin inhibitor has been developed. It has advantages of low toxicity, incombustible, high density, high efficiency of paraffin removal and paraffin control effect. The laboratory result showed that viscosity reduction rate and dynamic wax inhibiting rate were both more than 70% respectively under the best proportion condition. The field result indicated that it could decrease the times of washing well and improve the production of oil well by using continuous dosing. [ABSTRACT FROM AUTHOR]