泡沫复合驱用癸基糖苷磺酸盐的合成及性能研究

以癸基葡萄糖苷(C_(10)APG)和3-氯-2-羟基丙烷磺酸钠为原料反应制得癸基糖苷磺酸盐(C_(10)APGS),用FT-IR和ESI-MS对产物进行了表征,并对其泡沫性能和吸附性进行了测定。结果表明:C_(10)APGS表现出良好的发泡能力和泡沫稳定性,其发泡率和排液半衰期随C10APGS质量分数的增加而增加,当质量分数增加到0.4%后,发泡率和排液半衰期增速变缓;随着二价盐质量分数的增加,C10APGS的发泡率变化不大,但对泡沫稳定性产生明显的影响,当二价盐质量分数增加到8%时,C10APGS仍表现出良好的耐盐性能;相对于C_(10)APG,C10APGS的饱和吸附损失量降低了14.4%,可作为较理想的发泡剂应用于高盐油藏的泡沫复合驱。

Synthesis and performance of decyl polyglycoside sulfonate for foam blended flooding agent

Decyl polyglycoside sulfonate (C10APGS) was prepared with decyl polyglycoside (C10APG) and sodium 3-chloro-2-hydroxypropanesulfonate as starting materials. Chemical structure of the product was characterized by FT-IR and ESI-MS, and the foam performance, adsorption capacity of the product were also investigated. Results showed that the foaming power and foam stability of C10APGS are very well, and the foaming power and the draining half-life period increase with the increase of C10APGS mass fraction, while as C10APGS mass fraction exceeds 0.4% the trend of the increment of the foaming power becomes slower. As the mass fraction of the divalent salts increases, the foaming power changes insignificantly, while the foam stability drops significantly. Even in case that the mass fraction of the divalent salts achieves up to 8%, C10APGS still displays good salt tolerance. The adsorption loss of C10APGS reduces by 14.4% as comparing with that of C10APG and can be used as a rather satisfiable component in foam blended flooding agent for application in high salinity crude oil mines.