为改善敏感性稠油油藏蒸汽吞吐井防砂效果，通过性能试验，优选出力学性能、耐温性能及耐介质性能好的氧化铝作为过滤材料，高强度溶融氧化铝作为结合剂，硅酸盐类负离子粉作为表面处理剂，研制出一种具有耐高温、高强度、高渗透率、抗堵塞的稠油热采防砂用滤砂管。该滤砂管具有较好的耐高温性能、优良力学性能，挡砂能力强、不易堵塞等优点。目前，现场已试验12井次，平均单井日增液28．1 m3，单井日增油2．7 t，动液面上升148．3 m。%In order to improve the effect of sand control in steam inj ection wells of the sensitive heavy oil reservoir,through performance test,alumina with good mechanical properties,tempera-ture resistance and medium performance as filter material is optimized.High strength molten alu-minum is used as a binding agent,silicate anionic powder is used as surface treatment agents, heavy oil thermal recovery sand screen with high temperature resistance,high strength,high per-meability and anti-clogging properties is finally made.The sand screen has better high tempera-ture resistance,excellent mechanical properties,perfect sand retention capability,anti-clogging, etc.At present,the sand screen has been used on 12 wells in field experiment.The average single well liquid increased is 28.1 m3 ,single well oil increased is 2.7 t and working fluid level rises 148.3 m.
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