Experimental and Numerical Study on Gas-Liquid Flow in Hilly-Terrain Pipeline-Riser Systems

Figure 4

Schematic diagram of the gas-liquid flow cycle for severe slugging of type I. (a) Liquid fallback. (b) Gas discharging. (c) Slug growth. (d) Slug production (gas does not penetrate the slug). (e) Slug production (gas has penetrated the slug). (f) Gas-liquid blowout.

(a)

(b)

(c)

(d)

(e)

(f)