共 50 条
- [22] CORRECT APPROACH CUTS ROAD CORE DRILLING COSTS BY 50%. Industrial Diamond Review, 1974, : 172 - 173
- [23] STEERABLE SYSTEM CUTS STRAIGHT HOLE DRILLING COSTS 50%. Petroleum Engineer International, 1988, 60 (05): : 48 - 51
- [24] Batch drilling program cuts time, costs for Liuhua development Oil and Gas Journal, 1996, 94 (33):