Flow Unit Model of Channel Sand Body and Its Effect on Remnant Oil Distribution: A Case Study of PI Formation in the Eastern Transition Zone of Daqing Oilfield

Figure 3

Cores of well B2-60-GB271 from PI1 to PI5+6, 1146 m-1173 m. Siltstone is the main oil-bearing reservoir. Five interlayers are within the layer (red dotted line). The numbers on the core represent the sample numbers.