脉冲波作用下地层流体渗流规律研究  

Study on the seepage law of formation fluid under the effect of pulse wave

作　　者：刘静[1] 蒲春生[1] 刘涛[2] 吴波[3] 

机构地区：[1]中国石油大学(华东)石油工程学院,山东青岛266555 [2]中石化胜利石油管理局石油开发中心,山东东营257000 [3]中石化胜利油田分公司桩西采油厂,山东东营257000

出　　处：《西安石油大学学报（自然科学版）》2011年第4期46-49,8,共4页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：陕西省重大科技攻关专项计划项目"陕甘宁盆地低渗油田高效开发与水资源可持续发展关键技术研究"(2006kz01-G2)

摘　　要：通过对脉冲波作用下地层流体在地层中传播的动力学机理的研究,结合波动力学理论,建立了脉冲波作用下地层流体的渗流方程.假设脉冲波作用下地层流体速度是地层流体原来的流速与n次脉冲波作用下振动速度的叠加,得到了脉冲波作用下地层流体的流速方程.结合实例分析了距离、时间、脉冲频率和脉冲振幅对渗流速度的影响.随着距离增大,渗流速度的振幅逐渐减小,直至为零;随着频率的增大,渗流速度的振幅开始逐渐减小,而后又变大;随着脉冲振幅的增大,各点的流速振幅逐渐增大.建立波动条件下的渗流方程可以从理论上了解不同参数对渗流速度的影响,为脉冲波采油技术在现场的应用提供理论依据.The seepage equation of formation fluid under the effect of pulse wave is established according to the dynamic mechanism of the pulse wave propagation in the formation and the wave mechanics theory.The flow velocity equation of formation fluid is obtained under the hypothesis that the flow velocity of formation fluid under the effect of pulse wave is the stack of the flow velocity of formation fluid without the effect of pulse wave with the vibration velocity of fluid particle under the effect of n-th pulse wave.The influences of the distance from pulse source,time,pulse frequency and pulse amplitude on the seepage velocity of formation fluid are analyzed by an example.It is shown that,the amplitude of the seepage velocity decreases with the increase of the distance;the amplitude of the seepage velocity decreases firstly and then increases with the increase of the pulse frequency;the amplitude of the seepage velocity increases with the increase of the amplitude.The research results can provide theoretical basis for the field application of pulse wave recovery technology.

关 键 词：脉冲波采油 地层流体 渗流速度 脉冲频率 脉冲振幅 

分 类 号：TE357[石油与天然气工程—油气田开发工程]