定量表征单砂体注采关系的流线方法

基于单砂体开发动态模型，提出了定量表征单砂体注采关系的流线方法，并系统论述了其表征原理。以大港油田宫104断块G76—30注水井组为研究对象，应用流线方法计算了4口生产井的受效因子和G76—30注水井的注水量分配系数。计算结果表明，G77—31和G76—32井是注水井G76—30的主要受效井和水流通道，与现场示踪监测结果一致，证明了该方法的可靠性。该方法对研究水驱油藏单砂体注采关系和剩余油分布有很好的指导作用，与传统数值模拟方法相比，计算速度和精度都有大幅度提高。

Streamline method of quantitatively characterizing injection-production relationship of single sand body

Streamline method of quantitatively characterizing injection-production relationship of single sand body is proposed based on dynamic production model of the single sand body.The characterization principle is discussed systematically.The method is used in the well group G76-30 of fault block Guan104 in Dagang Oilfield.Response factors of four producing wells and distribution coefficient of water injection rate in the water injector G76-30 are calculated by the streamline method.The calculation indicates that Well G77-31 and G76-32 are the main response wells and streampath of the injection water from injector G76-30,which agrees with the field tracer test result.It proves the feasibility of the method.The method provides valuable guidance on research of injection-production relationship and remaining oil distribution in single sand body of the water drive oil reservoirs.Both the computation speed and the accuracy have been improved a lot with this method compared with the traditional numerical simulation technique.