储层伤害诊断技术研究与应用

Research and Application of Diagnostic Method of Formation Damage

缪　飞 赵建华

江苏石油勘探局地质科学研究院

Geological Research Institute , Jiangsu Oil Exploration Corp ,J iangsu 225261 , P. R. China

油气层保护以预防为主。在储层伤害发生后,判断伤害的类型及伤害的程度,根据研究分析结果提出针对性的措施,也是一个重要方面。本文把对油井和注水井造成储层损害的主要原因归为6 类,并分别计算其相关参数。根据测算值提出相应的措施。

When the formation damage occurred ,analyzing the types of the formation damage and eliciting measures is necessary for formation protection. Based on experience in the field and experimentation , the factors of formation damage are divided into 6 groups , they are :particle migration ,hydrated expansion ,inorganic scale plugging ,organic scale plugging , bacteria plugging and plugging formed by solid grain in water. Accounting to calculating result of skin factor of 6 groups , the measures are proposed.