论文部分内容阅读
通过研究丙烯酰胺/2-丙烯酰胺-2-甲基丙磺酸/N-辛基丙烯酰胺共聚物(HPPS)与石油磺酸盐复配体系的表观黏度、表/界面活性及吸附性质,讨论了两者的相互作用。结果表明,石油磺酸盐与质量浓度1.5 g/L聚合物HPPS复配溶液的表观黏度随着石油磺酸盐质量浓度的增大而上升,在其质量浓度为2.0 g/L时复配溶液表观黏度达到最大值后迅速下降。石油磺酸盐质量浓度低于0.5 g/L时复配溶液的表面张力值低于单独的石油磺酸盐溶液;之后则高于单独的石油磺酸盐溶液。复配溶液与胜利油田原油的界面张力高于单独的石油磺酸盐溶液,但最低值仍可达到1×10-2mN/m。聚合物HPPS与质量浓度为2.0 g/L的石油磺酸盐的复配溶液中,石油磺酸盐在地层砂上的静态吸附量随着聚合物HPPS质量浓度的增大而显著增大,当聚合物质量浓度为3.0 g/L时静态吸附量达到最大值。
By studying the apparent viscosity, surface / interface activity and adsorption properties of the acrylamide / 2-acrylamide-2-methylpropanesulfonic acid / N-octylacrylamide copolymer (HPPS) and petroleum sulfonate complex system, Discuss the interaction between the two. The results showed that the apparent viscosity of petroleum sulfonate mixed with HPPS solution of 1.5 g / L polymer increased with the increase of mass concentration of petroleum sulfonate, and was compounded at 2.0 g / L After the apparent viscosity of the solution reached its maximum, it dropped rapidly. When the mass concentration of petroleum sulfonate is lower than 0.5 g / L, the surface tension of the composite solution is lower than that of the petroleum sulfonate solution alone, and then higher than that of the petroleum sulfonate solution alone. The interfacial tension between the compounding solution and Shengli Oilfield crude oil is higher than that of the petroleum sulfonate solution alone, but the lowest value can still reach 1 × 10-2mN / m. In the complex solution of polymer HPPS and petroleum sulfonate with mass concentration of 2.0 g / L, the static adsorption capacity of petroleum sulfonate on formation sand increased significantly with the increase of polymer HPPS concentration, When the concentration of the substance is 3.0 g / L, the static adsorption capacity reaches the maximum value.