适于稠油热采封窜用耐温冻胶体系的研究-论文.pdf

第50卷第4期 当 代 化 工 V〇,
202 high temperatures, the long-term stability was significantly better than that of PAM
and the AM/AMPS copolymer, so AM-NVP was chosen as main agent in the preparation of , the mass
tractions of polymer, cross-linking agent and nanosilicon dioxide were optimized to form a temperature resistant gel
system formula: w (AM-NVP) %+u' ( water-soluble phenolic resin) % +w (nanosilicon dioxide) %. The
temperature resistance of the system reached 150 °C, the dehydration rate was less than 5% in 42 days, and the sealing
rate of sand filling tube was more than 90%. It can meet the sealing channeling need of heavy oil themial recovery.
Key words: Heavy oil; Thermal recovery; Temperature-resistant gel; Multi-segment plugs; Sealing channeling;
Enhanced oil recovery
热采是目前稠油开发的主要技术，但稠油在热 大孔道，氮 气 泡 沫 调 整 蒸 汽 的 吸 汽 剖 面 张 文 玉 171
采过程中，由于油藏层间的非均质性、不利的流度 在河南油田稠油热采时进行了溶液型堵剂、泡沫型
比、重力分异等因素，引起热流体窜流，导致吸汽 堵剂组合封窜技术的研究。张恩臣1X1研究了配方为
剖面不均匀，降低了蒸汽驱采收率|N21。 w ( HPAM ) %+ w (间 苯 二 酚 ）%+ w (甲 醛 )