SAGD油藏泥岩夹层热破裂的实验与模拟研究

Experimental and simulation study on thermal fracture of mudstone interlayer in sagd reservoir

胜利春晖油田哈浅1块油藏泥岩夹层发育,影响SAGD蒸汽腔的纵向扩展,进而影响SAGD开发效果。泥岩在热应力作用下,会产生收缩破裂,对SAGD开发具有积极作用。因此,有必要开展泥岩夹层在高温作用下热破裂实验,分析热作用下泥岩夹层裂缝的产生条件和分布特点,进而指导SAGD高效开发。

the development of mudstone interbeds in haishallow 1 block of Shengli chunhui oilfield affects the longitudinal expansion of sagd steam chamber,and further affects the development effect of sagd.Under the action of thermal stress,mudstone will produce shrinkage cracking,which has a positive effect on sagd development.Therefore,it is necessary to carry out the thermal fracture experiment of mudstone interlayer under the action of high temperature,analyze the generation conditions and distribution characteristics of mudstone interlayer cracks under the action of heat,and then guide the efficient development of sagd.