低渗裂缝性油藏渗吸注水实验研究

Experimental studies of water imbibition injection in low-permeability fractured oil reservoir

由于裂缝性油藏储集空间物理性质的复杂性和特殊性,渗吸效果控制着低渗透裂缝性水驱开发动态与开发效果。通过室内实验研究,获得了低渗裂缝性油藏基质岩块自然渗吸动态规律和脉冲渗吸动态规律,为制定低渗裂缝性油藏合理的渗吸注水开发方式提供了理论依据。

Because of the complexity and specialty of physical properties in enrichment space of fractured oil reservoir, imbibition effects control the development performance and results of water flooding in low-permeability fractured layers. Through the indoor experiment study, the dynamic laws of both natural imbibition and pulse imbibition of the matrix rocks in low-permeability fractured oil reservoir have been obtained, thus they can provide the theoretical evidence for the reasonable imbibition water injection pattern in this kind of oil reservoir.