Characteristics and main controlling factors of reservoirs in the fourth member of Sinian Dengying Formation in Yuanba and its peripheral area, northeastern Sichuan Basin, SW China |
JIN Mindong,LI Bisong,ZHU Xiang,DAI Lincheng,JIANG Zhili,WU Hao,LI Hui,YANG Peiyun |
Fig. 2. Composite columnar section of the fourth member of Dengying Formation in Hujiaba Profile. GR—gamma; k—Potassium content; ?—porosity; K—permeability. |