纳米生物质体系性能评价及驱油特性实验研究

Performance evaluation and experimental study on oil displacement characteristics of nano biomass systems

本文以玉米秸秆与纳米硅为原料,制备了改性纳米生物质,并评价了其在不同条件下的表面活性及界面张力。通过调整纳米生物质浓度(0.1%~1.0%)、注入速度(0.1~1.0mL·min^(-1))及注入体积(100~1000mL),优化体系的驱油参数。结果显示,纳米生物质浓度为0.8%、注入速度为0.6mL·min^(-1)、注入体积为600mL时,体系表现出最佳的驱油效率。此外,实验室结果在典型油田的现场应用中得到验证,应用优化后的体系参数,油田的日产油率从100桶提升至140桶,增幅达40%。由此可见,纳米生物质体系能够提高油田驱油效率,研究成果有助于指导油田开发中生物质材料的应用。

This article uses corn straw and nano silicon as raw materials to prepare modified nano biomass,and evaluates its surface activity and interfacial tension under different conditions.Optimize the oil recovery parameters of the system by adjusting the concentration of nano biomass(0.1%~1.0%),injection rate(0.1~1.0mL·min^(-1)),and injection volume(100~1000mL).The results showed that the system exhibited the best oil displacement efficiency when the concentration of nano biomass was 0.8%,the injection rate was 0.6mL·min^(-1),and the injection volume was 600mL.In addition,laboratory results have been validated in typical oilfield field applications.With the optimized system parameters,the daily oil production rate of the oilfield has increased from 100 barrels to 140 barrels,an increase of 40%.It can be seen that the nano biomass system can improve the oil recovery efficiency of oil fields,and the research results can help guide the application of biomass materials in oil field development.