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水力驱动方式作为油田开发生产中后期的主要驱油手段,在生产现场一直被广泛应用。而地层吸水能力的好坏,直接影响到水力驱油的效果和对应油井的产量。中原油田文东油区经过30多年的开发,地层流通性差,水驱效果不明显。去年以来,油田采油工程技术研究院和采油一厂联合采用“特低渗油藏多氢酸增注工艺”在部分井进行试验,取得了良好的增注效果。图为4月17日,该院技术人员与采油一厂工程施工人员一起在文16-28井进行酸化增注施工。
As the main means of oil displacement in the late stage of oilfield development and production, hydraulic drive mode has been widely used in the production site. The strata’s ability to absorb water directly affects the effect of hydraulic flooding and the corresponding well production. After more than 30 years of development, the Wendong Oilfield of Zhongyuan Oilfield has poor formation circulation and no obvious water-flooding effect. Since last year, the Oilfield Production Engineering Research Institute and the First Oil Production Plant jointly adopted the “Multi-Hydrogen Acid Injection Process for Extra-low Permeability Reservoirs” to conduct tests in some wells and achieved good re-injection results. The picture shows April 17, the hospital technicians and a construction plant workers together in the text 16-28 well acidification injection construction.