扩大中期微乳液的盐度窗口,并减少表面活性剂通过水吸附
Na Yuan1, Shuoshi Wang1,2, Ying Yu3
1Mewbourne School of Petroleum and Geological Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States.
Langmuir : the ACS journal of surfaces and colloids
|November 25, 2023
概括
水产物,如尿素,显著减少表面活性剂在多孔介质中的损失,降低了增强石油回收 (EOR) 和水表整治 (SEAR) 的成本. 这一创新扩大了表面活性剂洪水在具有挑战性的高盐度环境中的适用性.
科学领域:
- 石油工程是石油工程中的一个.
- 环境工程 环境工程
- 合体和表面科学科学
背景情况:
- 表面活性剂的泛滥对于增强石油回收 (EOR) 和地下水层修复 (SEAR) 是至关重要的.
- 表面活性剂吸附到储水矿物质上会造成巨大的财务损失,特别是在高盐度条件下.
- 尽量减少表面活性剂的损失对于这些技术的经济可行性和更广泛的应用至关重要.
研究的目的:
- 为了研究水的有效性,减少表面活性剂吸附到多孔介质.
- 量化水对不同矿物表面表面活性剂保留的影响.
- 探索水对微乳液相位行为和界面张力的影响.
主要方法:
- 进行了界面张力测量,以确定最佳的盐度范围和温索III型微乳液.
- 表面活性剂吸附量测定在三个代表性的多孔介质 (印第安纳石灰岩,太华沙,活性炭) 上,有或没有含有水类添加剂.
- 尿素作为水的有效性与典型的牺牲剂进行了比较.
主要成果:
- 水类物质大大降低了表面活性剂的吸附率:在石灰岩上高达65%,在沙子上高达21%,在活性炭上高达53%.
- 尿素被确定为一种有效的水,修改了中期微乳液的盐度范围.
- 尿素通过将表面活性剂与液态相结合而表现出优异的性能,与牺牲剂不同.
结论:
- 在表面活性剂泛滥配方中整合水,特别是尿素,可以显著降低表面活性剂的消耗和相关成本.
- 这种方法提高了EOR和SEAR项目的效率,通过在不同的水库条件下减轻表面活性剂的损失.
- 这些发现允许通过克服度限制和改善整体项目经济性,更广泛地应用表面活性剂泛滥.
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