低渗透油藏深部调剖工艺技术与质量控制

低渗透油田注水开发已逐渐成为石油开采的重要组成部分,如何控制含水上升,减缓产量递减,增加采收率,提高开发效果,是油田开发工作者最关注的问题。注水井调剖技术作为控水稳油的重要手段之一,在低渗透油田开发过程中逐渐得到了推广应用,通过对其过程控制,提高作业质量,保证措施效果。从措施选井选层入手,针对该项工艺技术关键及要点,分析质量控制的方法,论述调剖作业通过对地层深部的封堵,改变注入水流向,有效驱替剩余油,提高低渗透油田注水开发采收率。

Deep Profile Modification Technology and Quality Control of Low-Permeability Reservoirs

Water-flood Development for low-permeability reservoirs is one important component in the development of oil production.The problem that planners of oilfield development are most concerned with is how to control the rising trend of water-cut,slowdown the decline of production,increase the rate of oil production,and improve the effect of development.As one of important means for controlling water and stabilizing the oil output,waterflood profile modification technology has gradually been popularized and applied in the development of low-permeability reservoirs.Through the control over its process and the improvement of operation quality,the effect of measures is assured.The paper starts with the selection of wells and layers,then analyzes the methods of quality control according to the key and main points of this technology.Finally,it is explained how to seal the deep part of layers,alter the direction of injected water flow,effectively drive the left oil from the ground in deep profile modification operation in order to promote the oil production rate in water injection development of low-permeability reservoirs.