聚合物溶液在岩心中的运移阻力及主要影响因素

The Variation of the Polymer Solution in the Core of Reservoir Parameters

聚合物溶液对地层渗透率、孔隙度等参数的影响,对储层的开发方案调整措施至关重要,同时由于聚合物作为一种储层外来液体必定对储层产生影响,因此研究储层对地层的敏感性有着重要的现实意义.试验研究分析了储层对聚合物的速敏性,调查研究了聚驱后的速敏性变化,探索聚后储层渗透率的变化规律和地层内流体流速之间的相互影响程度,测量分析了速敏性的临界流速,然后通过数据比对和分析得出速敏程度.分析结果表明:聚合物溶液注入岩心后,地层中之前易迁移微粒会被其黏住,改善了地层开采环境,同时聚合物溶液会导致岩心地层无速敏性,有益于聚驱后对储层的在此开发.

Polymer solution to the formation permeability,the effects of parameters such as porosity,adjustment measures for reservoir development scheme is essential,as a kind of reservoir at the same time because of the polymer external liquid will surely affect the reservoir,so the reservoir sensitivity to the formation has important practical significance. Experimental study on analyzing the velocity sensitivity of reservoir for the polymer,the investigation and study the velocity sensitive sex change after polymer flooding,explore together within the changing rule of the reservoir permeability and formation after the interaction degree between fluid flow and measuring the velocity sensitivity of the critical flow velocity is analyzed,then the velocity sensitive data comparison and analysis,the analysis results show that the polymer solution injected into the core,formation of easy migration of particles are the stick before,improved formation mining conditions,at the same time without velocity sensitive polymer solution can lead to formation cores,benefit in the development of the reservoir after polymer flooding.