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随着注水开发不断深入,油田已进入中高含水阶段,层间矛盾日益突出,地应力平面及纵向分布变化极不均衡,致使注水井套损套变逐年增加,严重阻碍油井产量,使得开发中的矛盾越来越突出,注采关系建立不起来。本文从新木油田油水井井下技术现状入手,搜集统计了大量的地质资料,对套变因深入分析,通过研究分析,归纳出套变井形成原因,制定了适合新木油田特点的套变井挖潜措施,取得了一定的开发效果,对今后新木油田套变井的措施挖潜具有指导意义。
With the continuous development of waterflooding, the oilfields have entered the stage of medium-high water cut, and the contradictions between the layers have become increasingly prominent. The variation of the ground stress distribution and the longitudinal distribution has been extremely uneven. As a result, casing deformations of water injection wells have increased year by year, seriously hindering oil well production, Contradictions become more and more prominent, and the relationship between injection and production can not be established. In this paper, we start with the current status of underground oil and gas wells in Xinmu Oilfield. We collect a great deal of geological data and make a deep analysis on the causes of casing deformation. Through the research and analysis, we conclude the reason for the formation of casing wells, Measures, and achieved a certain development effect, which will be of guiding significance for tapping the potential of wells in Xinyu Oilfield in the future.