The Experimental Investigation of the Development Potential of Low-Permeability Reservoirs in the Daqing Oilfield

Figure 5

relaxation time spectra of different low-permeability cores.

(a) Core T4-2 ( μm²)

(b) Core Y4-2 ( μm²)

(c) Core C4-2 ( μm²)

(d) Core C4-3 ( μm²)