Study on the Imbibition Characteristics of Different Types of Pore-Throat Based on Nuclear Magnetic Resonance Technology

Figure 1

Cast thin section and scanning electron microscope.

(a) Casting thin section of the core (intergranular pores and dissolved pores)

(b) Casting thin section of core 2 (overall dense)

(c) Scanning electron microscope of core 1 (intergranular pores)

(d) Scanning electron microscope of core 1 (detrital particles, dissolved pores)

(e) Scanning electron microscope of core 2 (intergranular residual pores)

(f) Scanning electron microscope of core 2 (intergranular flake illite)