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.