靖安油田采出水回注指标修订探讨

Revision of produced water reinjection index in Jingan oilfield

随着油田不断开发,注水水源紧缺与大量采出水未充分利用的矛盾日益突出,国家环保法规要求,采出水回注地层才是最佳去向。注入水水质的好坏直接影响储藏堵塞程度,回注水质控制指标是衡量水质合格的尺度,是水质管理和注水管理必须遵守的准则。油田开发中后期,油井见水程度差异较大,油井、水井措施力度大,储层结构发生变化,原有的水质回注控制指标已不能满足油田开发需求,因此,重新修订水质回注控制指标已势在必行。

With the continuous development of oil field,the contradiction between the scarcity of water resources and under utilization of produced water is becoming increasingly conspicuous. According to the national environmental protection laws and regulations,the best direction in which produced water has gone is the layer.The quality of injected water directly affects the degree of oil storage block.The index of controlling the reinjected water quality is the standard of measuring the water quality.During the late period of oilfield development,the degree of well breakthrough is different.More measures need to be adopted,the structure of reservoir stratum is also changed.The original index of reinjected water quality can not meet the need of oilfield development,therefore the revision of reinjected water quality index is imperative.