Pore Structure Characteristics, Genesis, and Its Controlling Effect on Gas Migration of Quaternary Mudstone Reservoir in Qaidam Basin

Figure 1

The structure of the Sanhu Depression and the histogram of Quaternary stratigraphy. Sanhu Depression is divided into the southern slope belt, central sag belt, and northern slope belt. The gas field is located in the northern slope belt. The experimental samples were taken from wells Tn-18, Ts-1, St-1, and S-23.