| Main flow channel index in porous sand reservoirs and its application | 
| LI Xizhe,LUO Ruilan,HU Yong,XU Xuan,JIAO Chunyan,GUO Zhenhua,WAN Yujin,LIU Xiaohua,LI Yang | 
| Fig. 10. Relationship between producing degree of reserves and MFCI at the well spacing of 400 m. | 
|   |