The Impact of Microscopic Pore Network Characteristics on Movable Fluid Properties in Tight Oil Reservoir

Figure 8

Fracture images of Chang 7 tight oil reservoir in Ordos Basin: (a) sample from well L17, 1831.2 m, high angle and unfilled fractures, oil stain; (b) sample from well F6, 1957.6 m, oil filling fracture; (c) sample from well X82, 2084.0 m, ferrocalcite filling pore, double fracture-pore system.

(a)

(b)

(c)