小泵深抽技术在低渗油藏中的应用研究

Applied study of depth-pumping with small diameter pump in low-permeability reservoir

小泵深抽技术是通过增大生产压差来提高油井产液量,达到稳产增产,提高油田开发效果的目的。结合草舍油田低渗油藏开发中小泵深抽技术的应用情况,研究了小泵深抽的适用条件,建立了确定小泵深抽技术的泵径和泵挂深度的数学模型。通过应用效果评价,证明了小泵深抽技术在低渗油藏中具有较好的适应性。

The depth-pumping technology of small-diameter pump is significant for improving the effect of oilfield development,which increases production pressure drop to improve well fluid,and gains the goal of stabilizing and increasing oil production.Based on analyzing the result of field use in Caoshe low-permeability oilfield,this article describes the applicability conditions and mathematical model of depth-pumping application.The evaluation of field use shows that the depth-pumping technology has a good applicability in low-permeability reservoir.