Hydrocarbon accumulation and exploration prospect of mound-shoal complexes on the platform margin of the fourth member of Sinian Dengying Formation in the east of Mianzhu-Changning intracratonic rift, Sichuan Basin, SW China

YANG Wei,WEI Guoqi,XIE Wuren,JIN Hui,ZENG Fuying,SU Nan,SUN Ai,MA Shiyu,SHEN Juehong,WU Saijun

Fig. 2. Photos of typical mound-shoal complexes in the platform margin of Z2dn4. (a) Well Gaoshi-1, 4983.47 m, algal agglomerate dolomite, core photo; (b) Well Moxi-9, 5046.15 m, algal agglomerate dolomite, core photo; (c) Well Gaoshi-1, 4977.73 m, algal agglomerate dolomite, cast thin section; (d) Well Jiaotan-1, 7573.00 m, algal agglomerate dolomite, cast thin section.