【作者】 殷代印； 郭永贵； 黄伟明；

【Author】 YIN Dai-yin GUO Yong-gui HUANG Wei-ming Department of petroleum enginnering,Daqing petroleum institute,Daqing 163318

【机构】 大庆石油学院；

【摘要】 根据低渗透油田提捞采油生产特点,考虑油层存在启动压力梯度和提捞井均压裂投产的实际,分提捞井注水受效和不受效两种情况,推导出了提捞井产量计算理论公式,能够计算提捞井目前和未来的提捞产量,克服了经验方法需要试井资料且不能预测未来提捞产量的缺陷.通过大庆榆树林油田提捞试验区实例验证表明,该方法计算误差在5%以内,能够满足工程计算的需要.在此基础上,结合经济评价,给出了提捞采油合理提捞周期的确定方法,计算了不同油价下的合理提捞周期,为油田经济有效开发提供了依据.更多还原

【Abstract】 according to the features of bailing oil production in low permeability oil field,and considering the existence of start-up pressure gradient and the practice of fracturing in bailing wells, this paper divides water injection in bailing wells into two kinds of situation,valid and invalid, Theoretical equations which could calculate the production of bailing wells were derived.These theoretical equations can be used to calculate both present and future production for bailing wells and overcomes the defaults of empirical method which can not predict future bailing production and needs well test data.Taken bailing production field test in Daqing Yushulin oilfield as an example, the calculation error is within 5%,more or less which could meet the requirements of engineering calculation.Based on this,and combining economic evaluation,a method to determine the reasonable cycle time for bailing oil production was presented in the paper,the reasonable bailing cycle under different oil prices was calculated,so this paper can provide reference for the economical and efficient development of oilfield.更多还原