在阿塔巴斯卡石油砂中未解决的接口"拉格层"的调查 In Situ 恢复
Evgeniya Hristova1, Stanislav R Stoyanov1, Richard McFarlane2
1Natural Resources Canada, CanmetENERGY Devon, 1 Oil Patch Drive, Devon, Alberta T9G 1A8, Canada.
ACS omega
|July 29, 2024
概括
这项研究研究了蒸汽辅助重力排水 (SAGD) 石油回收中的破布层形成. 细质固体和乳液显著影响了拉布层体积,影响了SAGD处理器的分离效率.
科学领域:
- 石油工程是石油工程中的一个.
- 化学工程是化学工程的重要组成部分.
- 材料科学 材料科学 材料科学
背景情况:
- 蒸汽辅助重力排水 (SAGD) 是一种主要的局部回收方法.
- 在SAGD过程中,产生水,碳化合物和沙的混合物,需要进行分离.
- 分离中的中断,比如破布层的形成,会影响工艺效率.
研究的目的:
- 调查SAGD处理器中布层的发生和形态.
- 量化影响拉布层形成和体积的因素.
- 了解固体和乳液在拉布层发育中的作用.
主要方法:
- 实验室规模的实验模拟SAGD条件.
- 从SAGD操作中分析现场测试数据.
- 显微镜成像以表征拉布层形态和乳液类型.
- 固体的量化,混合速度和溶剂效应.
主要成果:
- 拉格层的形成和体积受固体,混合速度和溶剂添加的影响.
- 显微镜分析显示,在布层内存在油中的水和油中的水两种乳液.
- 疏水的微型无机固体 (<10微米) 在油水界面积聚,有助于破布层的形成.
- 拉格层边界与滴滴聚合相关,在油水界面附近增加.
结论:
- 细微的无机固体在SAGD处理器中的布层稳定起着至关重要的作用.
- 料固体含量的波动可以解释野外作业中看似随机出现的破布层.
- 了解破布层的形成是优化SAGD分离过程的关键.
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