Understanding the controls of fines migration in sandstones.

了解砂岩中细粒迁移的控制。

• 批准号: 1771076
• 金额: --
• 依托单位: Durham University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1771076
• 关键词: Understanding; controls; fines; migration; sandstones.

To maintain production of oil from sandstone reservoirs tertiary, or enhanced, oil recovery methods are employed. One method of enhanced oil recovery involves flushing with desalinated seawater. A number of mechanisms have been proposed for how low salinity enhanced oil recovery may occur, one of which, fines migration, is studied in detail in this project. Fines migration involves the mobilisation of small particles of minerals such as clay minerals during low salinity flooding, which act to both transport the adsorbed oil and to also change the reservoir sweep. Working with partners at BP we will work to understand factors that mobilise clay mineral fines, how they move once mobilised and how fine clay minerals are either transported through the sandstone, or become fixed again.

为了保持从砂岩储层中采油，采用了第三次采油或强化采油方法。一种提高石油采收率的方法涉及用淡化海水冲洗。对于低矿化度下提高原油采收率的机理，人们已经提出了很多种看法，本项目对其中的一种机理--微粒运移进行了详细研究。细粒运移涉及在低盐度驱替期间矿物小颗粒（例如粘土矿物）的移动，其作用是输送吸附的油并改变储层波及范围。我们将与BP的合作伙伴合作，了解粘土矿物微粒的流动因素，以及它们在流动后如何移动，以及粘土矿物微粒如何通过砂岩运输或再次固定。