低渗透油田提捞采油合理提捞周期的确定  

The Determination of Profitable Cycle Time for Bailing Oil Production in Low Permeability Oilfield

作　　者：郭永贵[1] 

机构地区：[1]大庆油田责任有限公司第十采油厂,大庆163315

出　　处：《科学技术与工程》2010年第10期2291-2295,共5页Science Technology and Engineering

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,分提捞井注水收效和不收效两种情况,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,克服了经验公式需要试井资料且不能预测未来提捞产量的缺陷。通过大庆朝阳沟油田提捞试验区实例验证,给出的理论公式计算误差在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。According to the feature of bailing oil production and considering the existence of start-up pressure gradient and the actual situation of fracturing in bailing wells production of low permeability oilfield,theoretical equations were derived under the situations of valid and invalid injection,which could be used to calculate both present and future productions of bailing wells.This method overcomes the defects of empirical methods which need well test data,and can not predict future bailing production.Testing results in Daqing Chaoyanggou Oilfield show that the calculation error resulted from this paper is within 5%,which is within the limitation of engineering calculation.Combined with economic assessment,a method to determine the profitable cycle of bailing oil production is given,and profitable bailing cycles under different oil prices are calculated.The determination provides an economical and efficient reference for oilfield developing.

关 键 词：提捞采油 提捞周期 续流量 启动压力 动液面 

分 类 号：TE348[石油与天然气工程—油气田开发工程]