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孪连季铵盐类表面活性剂活性水增注是针对目前中低渗透油田吸水能力差、注入压力高开发的一种技术,但注入成本较高。在研制的孪连季铵盐类注水增注剂中引入一定量含有生物活化剂的CDKT-004有机复合肥进行改性,能使油水界面张力达到10-3 mN/m数量级,更低的临界胶束浓度,注入成本大幅度降低。现场注入浓度为300～500 mg/L,注水压力平均下降2.47 MPa,均能完成配注。注水单耗由原来的6.23 kWh/m3降低到5.81 kWh/m3,年节约电量216×104 kWh。
Gemini quaternary ammonium surfactant active water injection is aimed at the current low permeability oilfield poor absorption and injection pressure high development of a technology, but higher injection costs. Introducing a certain amount of CDKT-004 organic compound fertilizer containing biologically active activator into the gemini quaternary ammonium salt water injection enhancer, the oil-water interfacial tension can be improved to the order of 10-3 mN / m and lower critical Micelle concentration, injection costs significantly reduced. Site injection concentration of 300 ~ 500 mg / L, the average injection pressure decreased 2.47 MPa, can be completed with the note. Water consumption unit consumption from the original 6.23 kWh / m3 reduced to 5.81 kWh / m3, the annual saving 216 × 104 kWh.