对于应力敏感性强的储集层,过低的井底压力降低了近井地带地层的孔隙流体压力,导致裂缝趋于闭合。同时,井壁失稳的可能性也大。
To strong stress sensitivity formation, low BHP reduces pore fluid pressure of near wellbore are which results in the closure of formation fracture.
裂缝的应力敏感性通过影响裂缝渗透率对裂缝产能产生影响。
Because fracture permeability is affected, productivity was effect by stress sensitivity too.
建立了一套裂缝性油藏应力敏感性和裂缝滞后效应评价实验程序,提出了评价应力敏感性和裂缝滞后效应的量化指标。
A test program is established to evaluate the stress sensitivity and fracture lag-effect of fractured reservoir, and the qualified indexes are proposed thereby.
应用推荐