Sedimentary diagenesis of rudist shoal and its control on reservoirs: A case study of Cretaceous Mishrif Formation, H Oilfield, Iraq

Yichang YU,Longde SUN,Xinmin SONG,Rui GUO,Xingjun GAO,Minjie LIN,Liping YI,Haiying HAN,Fengfeng LI,Hangyu LIU

Table 1 Whole rock analysis of rudist shoal of Mishrif Formation in H Oilfield.

Core Layer Mineral composition/% Number of samples Quartz K-feldspar Plagioclase Calcite Dolomite Siderite Pyrite Gypsum Anhydrite Rock salt Clay minerals MB2-1 0.21 0 0 99.06 0.73 0 0 0 0 0 0 46 MC1-4 0.81 0 0 95.79 1.80 0 0.16 0 0 0 1.44 22