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随着油田开发进入中高含水期,油层动用程度的不断提高,在油井挖潜措施日益减少的情况下,提高注水质量是油田开发的重中之重,分层测试是保证注水质量的最重要的手段。本文通过对影响注水质量的关键问题—注水井分层测试周期进行了认真的分析和探讨,并以6个月测调周期井与4个月测调周期井的方案符合率进行对比分析,不同区块井的平均压力变化情况分析,以及对不同区块的井测试后正常分水时间的统计分析,得出不同区块不同条件下的分层注水井的合理测试周期,为今后进一步深入搞好注水结构调整提供依据。
With the development of oilfields entering the middle-high water-cut period and the increasing utilization of oil layers, improving waterflooding quality is the most important task in oilfield development when tapping potential of oil wells is decreasing day by day. The stratification test is the most important means to ensure waterflooding quality . In this paper, the key issue affecting the quality of waterflooding-waterflooding stratification test cycle has been carefully analyzed and discussed. Theconsistent rates of programs of 6-month-measuring period and 4-month measuring periodwells were compared and analyzed. The analysis of average pressure change in block wells and the statistical analysis of the normal water diversion time after well testing in different blocks, the reasonable test period of stratified water injection wells under different conditions in different blocks is obtained, which will be further explored in the future Good water structure adjustment provide the basis.