火烧油层注气压力参数室内试验的研究

火烧油层是一种重要的热力采油技术,又称"火驱",其工艺的复杂性要求更多的实验研究与数值模拟。在火烧油层技术最常见的工艺参数中,注气压力是最具解决价值的参数难题之一。为考察注气压力对火驱燃烧过程的影响,在火驱效果最大化的前提下节省压力成本,利用燃烧管试验研究了不同注气压力对室内模拟燃烧过程的影响。试验结果表明压力的提高有助于火驱前缘的推进,但过高的压力带来燃烧不稳定弊端,实验室火驱研究优化压力为0.8 MPa。

The experimental Research of Air Injection Pressure in laboratory ISC simulation

In-situ Combustion (ISC) is an important thermal recovery technology, also known as "Fire Flooding", the complexity of the process requires more experimental study and numerical simulation. Air injection pressure is one of difficulties most worthy to solve in the most common process parameters of ISC technology. In order to examine the effect of air injection pressure on process of the combustion and try to save the pressure cost in the premise of working best, the impact on the process of combustion in laboratory simulation test for different pressure with combustion tube experiments are studied. It concluded that, the increase of the pressure helps fire flooding front advance, but too high pressure make combustion instable, the optimized study pressure is 0.8 MPa in laboratory ISC simulation test.