Change of phase state during multi-cycle injection and production process of condensate gas reservoir based underground gas storage

TANG Yong,LONG Keji,WANG Jieming,XU Hongcheng,WANG Yong,HE Youwei,SHI Lei,ZHU Huayin

Fig. 5. P-T phase diagram of formation condensate gas and retrograde condensate oil at storage construction (4 MPa). (a) P-T phase diagram of formation condensate gas at 4 MPa; (b) P-T phase diagram of formation condensate oil at 4 MPa.