Authors: SHAUGHNESSY JM HERRMANN RP

Citation: Jm. Shaughnessy et Rp. Herrmann, CONCENTRIC RISER WILL REDUCE MUD WEIGHT MARGINS, IMPROVE GAS-HANDLINGSAFETY, Oil & gas journal, 96(44), 1998, pp. 54

Authors: COLE JC HERRMANN RP SCOTT RJ SHAUGHNESSY JM

Citation: Jc. Cole et al., NEW ULTRA-DEEP-WATER RIG WITH DUAL ROTARIES WILL REDUCE COSTS, Oil & gas journal, 95(21), 1997, pp. 69-74