用乳状液稳定性实验考察化学驱中油滴聚并规律

根据乳状液分层，破乳过程的测定及显微镜观察，考察了乳状液中的油滴上浮、絮集、聚并过程受水相组成的影响情况，得到了静态条件下石油磺酸盐碱、聚合物、盐影响原油乳化及油滴聚并速率的规律。这些结果对于用滴－滴聚并方法研究化学驱体系中油滴聚并是很好的佐证和补充，为了解化学驱油体系配方与驱出液油水分相情况的关系提供了参考。

AN INVESTIGATION OF EMULSIFICATION AND COALESCENCE PHENOMENA IN CRUDE OIL/CHEMICAL FLOODING SOLUTION SYSTEMS

The emulsification and coalescence characteristica of crude oil/chemical flooding solution systems are inestigated by observing the emulsion stability in terms of changes in specific concentrated-phase volume,(V_t-V_0)/V_0.The chemical flooding solutions studied are of:NaCl; 0. 2% petroleum sulfonate TRS10-410-NaCl:Na_2CO_3. 0.1% TRS10 410;0.50% NaCl HRAM AT530.It is show that (1)TRS10-410 NaCO_3 enhances the stability of oil drops in aqueous phase and impedes their coalescence;(2) NaCl promotes the coalescence;(3) Na_2CO_3 behaves differently in differentconcentrations and with low concentrations of Na_2CO_3 multiple emulsion formation is observed afer a long standing time;(4)AT430,viscosifing the aqueous phase,impedes the flocculation but promotes the coalescence of oil drops.