摘要
通过岩心分析和室内实验对油气层损害机理进行诊断,是实施保护油气层技术过程中必不可少的基础工作。对近年国外在固相侵入引起储层损害、粘土矿物水化膨胀和分散运移引起的损害、聚合物吸附引起的油气层损害、孔隙尺寸分布对损害剖面的影响、井壁应力状态导致的井壁失稳与储层损害的关系等方面的研究进展和技术成果进行了概括和总结,提出了近年来国外在油气层损害机理研究方面的一些新见解,如储层原始渗透率对损害程度的影响,蒙脱石、高岭石等粘土矿物的损害方式以及聚合物处理剂所引起的损害等。
To diagnose the formation damage mechanisms through core analysis and evaluation experiments is the indispensable basic work for controlling formation damage. Many damage mechanisms have been studied abroad in recent years such as solid invasion, clay hydration and dispersion, polymer adsorption, perforation size distribution, well wall instability because of stress state, etc.. Based on the epitome and summarization of these investigations and technical achievements, some new opinions for studying the mechanisms of formation damage abroad in recent years are introduced such as reservoir initial permeability effecting the degree of damage, the damage model of montmoril-lonite and kaolin, and the damages caused by polymer treatment, etc..
出处
《钻井液与完井液》
CAS
北大核心
2003年第2期42-47,共6页
Drilling Fluid & Completion Fluid
