摘要
针对密井网条件下影响固井质量的主要地质因素,笔者应用多井作用于地层任一点的压力势差为各相关井单独作用于这一点的势差总和原理和地层任一点孔隙流体渗流速度为多井共同作用的流体渗流速度矢量迭加理论,给出了地层孔隙压力和地层孔隙流体渗流速度的计算方法,并分别建立了相应的控制技术。应用该计算方法和控制技术对大庆油田待钻修井地层孔隙压力和孔隙流体渗流速度进行了计算。结果表明,该方法具有较高的计算精度,计算结果与实际基本相符。
Under the condition of tight well pattern, the major geologic factors influencing well cementing quality are the formation pore pressure and velocity of pore fluid. The theory of potential difference of pressure applied on random point of formation by multiwells are used as the sum of potential difference applied on the point by each of the single well, the filtration velocity of fluid velocity from the random point of formation is used as the vector of fluid velocity by multiwell co-action, by which methods for calculating the pore pressure and the velocity of pore fluid are given and corresponding control technique is established. The methods and techniques are used to calculate the pore pressure and filtration velocity of pore fluid from the formation that workover will be conducted in Daqing Oilfield. The result indicates that the methods and techniques are high precision, the calculated result is consistent with application.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2006年第5期110-112,共3页
Journal of Oil and Gas Technology
关键词
密井网
地层压力
孔隙压力
孔隙流体渗流速度
渗流方向
控制技术
tight well pattern
formation pressure
pore pressure
filtration velocity of pore fluid
direction of filtration
control technique
