注水井分层测试资料的综合分析方法

摘要

There are many problems in the testing of water injection wells because of the changeable downhole water injection conditions. As the testing data can only reflect part of the problems, need to be analysed with many methods and judge synthetically the water injection conditions in order to reduce operation cost and improve the testing efficiency and the testing quality. In the late high water cut oilfields, the stratified test technology in water injection wells is increasingly playing significant role in increasing important in the stabilizing oil production by water control. The stratified test data which are called downhole eyes in the course of providing the dynamic data for the oil reservoir geology analysis can describe the water injection and water intake of downhole intervals and interference between layers. It provides reliable reference for adjusting water injection plan. As experience shows, the testing data analysis is one of the important analytical methods, but it is not the only reliable method. Analyzing comprehensively of varied methods can obtain correct downhole string and water injection conditions.%由于井下注水后状况多变,注水井在测试过程中会出现各种问题,测试资料只能反映出一部分问题,需要多角度分析入手,综合判断注水井注入状况,从而有效减少作业成本,更好地提高测试效率和测试质量.在油田特高含水后期,注水井分层测试技术在稳油控水方面的作用日趋显著.在为油藏地质分析提供注水井动态数据的过程中,堪称井下眼睛的分层测试资料,可以详细描述井下各层段的注水、吸水状况、层间干扰情况,对于判断下步注水井方案调整方向,提供了准确的第一手资料.经验表明,测试资料分析是其中的一种重要分析手段,但却不是唯一的依靠方法.要综合利用多种方式分析,才能得出正确的井下管柱及注水状况.