00548nab a2200193 4500 20260520002814.0 260224s2009 xxu Screenless frac-packs extend PetroChina well production 23 feb. 2009 17/03/2009 ; 17/03/2009 2 p. ; 35-37 8 Oil & Gas Journal 107 ARTICULO Jun, Chang Xue 40527 Bao, Chen Ren 40528 Hui, Deng 20924 169241 169241 0 0 0 0 237060 BAAB BAAB 2026-03-05 200044039 0 200044039 2026-03-05 15:11:26 2026-03-05 ARTICULO