Multi-source genesis of continental carbonate-rich fine-grained sedimentary rocks and hydrocarbon sweet spots

JIANG Zaixing,KONG Xiangxin,YANG Yepeng,ZHANG Jianguo,ZHANG Yuanfu,WANG Li,YUAN Xiaodong

Fig. 10. Reservoir spaces in the “sweet spot” of volcanic-hydrothermal type. (a) Well LT1, 992.20 m, the C1x of Luanping Basin, hydrocarbons filling intergranular pores between tuff particles; (b) Well LT1, 958.06 m, the C1x of Luanping Basin, hydrocarbons filling the dolomite intercrystalline pores.