Understanding the controls of fines migration in sandstones.

为了保持砂岩储层第三系或增强型油藏的产油量，采用了采油方法。提高采收率的一种方法是用脱盐海水冲洗。关于低矿化度提高采收率的机制已经提出了许多，其中细颗粒运移在本项目中进行了详细研究。在低矿化度驱油过程中，颗粒运移涉及到粘土矿物等矿物的小颗粒的运移，这些矿物既可以运输被吸附的石油，也可以改变储层的波及范围。与BP的合作伙伴合作，我们将努力了解粘土矿物颗粒的动员因素，它们在动员后是如何移动的，以及粘土矿物颗粒是如何通过砂岩运输或再次固定的。

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.