EFFECTIVE FRACTURING CUT-OFF VALUES OF EXTREMELY-LOW PERMEABILITY RESERVO IR—TAKE THE ANPENG O ILFIELD OF BIYANG DEPRESSION AS AN EXAMPLE
WANG Guo-peng GUO Qi-jun ZHAO Qing et.al
西南石油大学学报(自然科学版) . 2006, (4): 40 -43 .  DOI: 10.3863/j.issn.1000-2634.2006.04.011