Offshore Engineer: Bubbling under at Bunga Raya (PDF, 333 Kb) - "A lightweight completion fluid was used by Talisman Malaysia to achieve the necessary underbalance to obtain clean perforation in a new offshore well. Results showed a measurable improvement over that of an adjacent well that had been perforated with a conventional underbalance fluid."
E&P: Alternatives in low-density cement formulation (PDF, 225 Kb) - "Conventional neat cement can be used in the majority of drilling situations, but in special cases density adjustment is critical to successful well completion and long-term zonal isolation."
E&P: Crystal ball for under-balanced drilling (PDF, 100 Kb) - "Hollow glass spheres from 3M were adopted by PetroChina for use in an under-balanced drilling project in the Sichuan Basin."
