耐温耐盐凝胶调剖技术研究进展

Research progress of high temperature resistant and high salinity tolerant gel profile control technology

针对常规凝胶调剖技术在用于高温高盐油藏时的作用时间短、封堵强度较差、不能满足调整吸水剖面要求的问题,综述了国内外耐温耐盐凝胶调剖技术的研究进展。探讨了无机凝胶调剖技术、有机预交联凝胶调剖技术以及有机延缓交联凝胶调剖技术的作用机理、配方、性能以及现场应用效果;同时指出了耐温耐盐凝胶调剖技术存在的不足以及发展趋势。

Researches, both foreign and domestic, on the high temperature resistant and high salinity toler- ant gel profile are reviewed for the purpose of finding an effective replacement which could be used in high temperature and salinity reservoir with a longer function time and better sealing strength. The mecha- nism, formulation, performance and field application effect of the inorganic, organic pre-cross linking, and organic delayed cross-linking gel profile agents are investigated;meanwhile, in order to improve heat re- sistance and salt tolerance of the gel profile control agent, studies on the temperature tolerant and salt re- sistant polymer, the cross-linking agent and the additive need m ha fi,rthor,~A