一、地质背景 克拉玛依油区位于准噶尔盆地西北缘。在油区范围存在一个以白碱滩—百口泉为沉降中心的中上石炭统沉积坳陷(图1),面积达9380平方公里。该坳陷在盆地边缘沉降 First, the geological background Karamay oil region is located in the northwestern margin of the Junggar Basin. There is a middle-upper Carboniferous sedimentary depression with Baijiatan-Baikouquan subsidence center in the oil zone (Figure 1) with an area of ​​9,380 square kilometers. The depression settled at the edge of the basin