开窗侧钻井技术在油田老井挖潜改造中的应用

摘要

油田老井的挖潜改造对提高采收率有重要作用。本文阐述了套管开窗侧钻井技术的原理、适用范围、工艺流程；针对某油井的实际情况，分析了其实施侧钻井的必要性和施工要求，简要介绍了施工步骤。该井侧钻后，日增产油量约4．5 t，实现了老井的重新利用。该技术对治理低渗透油田长关井或中高含水井具有重要意义。%The potential transformation of the oil well to enhance oil recovery is important.This paper expounded the principle of casing window sidetracking drilling technology,scope of application,process;ac-cording to the actual situation of 1392 well Bai 21 well district land,the necessity of the implementation side drilling and construction requirements were analyzed.A brief description of the construction steps was done. After the side drilling,the daily yield oil level was increased to be of about 4.5t,the reuse of old wells was to be achieved.This technique had important significance to control long -time shut wells with low permea-bility oilfield or wells with high water cut.