摘要
在明15块地层条件下,开展了表面活性剂、表面活性剂-起泡剂复合驱体系对明15块原油黏度及乳状液稳定性影响的研究。结果表明,表面活性剂、复合驱体系与原油形成乳状液的转型点分别为含水30%和40%;表面活性剂复合驱体系可降低原油黏度,改善油水两相的流度比;现有破乳剂可实现乳状液良好破乳,不存在后续水处理困难。矿场试验表明,目前含水条件可满足形成O/W乳状液,表面活性剂具有乳化降黏作用,减小油井产出流程回压,同时减少产出液处理程序。
The effects of surfactant and surfactant-air foam composite flooding system on the viscosity and emulsion stability of the crude oil produced in Block Ming-15 were studied under the formation conditions of Block Ming-15. The results of study have shown that the transformation that the surfactant and surfactant-air foam composite flooding system forms an emulsion with crude oil occurs when the watercut is 30% or 40%,that the surfactant and surfactant composite flooding system can reduce the viscosity of crude oil and improve oil-to-water mobility ratio,and that the existing deemulsifier can break the emulsion well without causing any difficulty of follow-up water treatment. The results of field test have shown that an O / W emulsion can be formed,the surfactant has emulsifying and viscosity reducing effect,the back pressure of oil well output flow can be decreased,and the output liquid handler can be reduced at current watercut condition.
出处
《精细石油化工进展》
CAS
2016年第3期47-50,共4页
Advances in Fine Petrochemicals
基金
中石化科研导向项目"中渗油藏泡沫复合驱先导试验研究与应用"
中原油田分公司科研项目"空气泡沫/表面活性剂复合驱提高采收率研究"(2012204)
关键词
空气泡沫
表面活性剂
提高采收率
复合驱
中原油田
乳化性能
air foam
surfactant
enhancing oil recovery
combined flooding system
Zhongyuan Oilfield
emulsification performance
