摘要
屏蔽暂堵技术是保护储层钻井完井技术的主要技术之一 ,应用屏蔽暂堵技术的关键选择合适的暂堵剂。用岩心流动实验的方法 ,针对飞仙关鲕滩储层 ,从暂堵剂的堵塞性及酸化解堵性方面对暂堵剂优选进行了研究。结果表明 ,暂堵剂岩心流动实验评价结果与粒子架桥原理相符性较好 ;粒径小于 7μm的暂堵剂应用于渡口河飞仙关储层效果最佳EP—Ⅰ及CXB5— 1、QHD32 - 6等暂堵剂的暂堵效果明显 ;现用几种暂堵剂暂堵后均能被酸化解堵 。
Temporary plugging technology is one of the main drilling and completion techniques for protection reservoir.The key of the technology is selecting suitable temporary plugging agent.On the basis of the features of Ertan reservoir in Feixianguan TM,the paper researches the optimum seeking method of temporary plugging agent by using core flow experiment.Experimental results show that the evaluation effects of core flow experiment of temporary plugging agent conform to particle bridging principle.The temporary plugging agent with grain diameter less than 7μm is used in Feixianguan reservoir,its plugging effect is the best.Meanwhile,the plugging effect of EP-1,CXB5-1 and QHD32-6 etc.temporary plugging agents is obvious,after plug removal,the core permeability can be increased by a big margin.
出处
《钻采工艺》
CAS
2004年第1期87-88,共2页
Drilling & Production Technology
