Whether you need a full underbalanced drilling program, managed pressure drilling, or both, Halliburton delivers with its GeoBalance® optimized pressure drilling service. When you’re facing complex pressure regimes that make conventional drilling difficult or impossible, the GeoBalance service can help you achieve well objectives while helping you reduce overall time and cost. The GeoBalance customized multi-level service comprises the industry’s most comprehensive suite of pressure optimization solutions for the well construction and reservoir challenges of critical pressure environments.
For more specifications:
http://www.halliburton.com/en-US_testing-subsea_public//ps/optimized-pressure-drilling/default.page?node-id=hfvq7iqw&nav=en-US_sperry_public