Steam Channeling Plugging Agent Development and Performance Evaluation of Heterogeneous Heavy Oil Reservoir

Thermal Recovery

Cuiting Zhang*, Changfu Li

Panjin Vocational and Technical College, Panjin, China

Abstract: To the conditions of reservoir heterogeneity, high temperature, developing a high temperature resistance gel plugging agent. the study mainly use simple variable method to optimize the ratio of the of proportion the plugging agent and Static and dynamic performance are evaluated. The formula of high temperature resistant gel type plugging agent system: The first working liquid: 1.2%cross-linking agent II+ 6% modified high temperature resistant main agent; The second working liquid: 0.03% coagulant aid+2.2% crosslinking agent I. The gelling viscosity of the plugging agent is between 3×104~7×104mPa•s, PH=6~8 is applied, heat-resistant > 280 , plugging rate > 93.1%; Using the ℃ double fluid method and low-pressure lowemission to inject. Optimizing the radius of profile control is 15 m, valid for 7 ~ 10 months, it has the obvious effect of increasing oil and controlling water. this study provide reference for other high-temperature profile control technology research and has a guiding significance for site construction applications.

Keywords: High temperature; Agent; Double fluid method