Drilling advances ///
Schlumberger Oilfield Services has signed a contract with Shell UK Ltd. and BP Exploration Operating Co. Ltd. to develop a rotary steerable system for slimhole drilling and through-tubing rotary drilling (TTRD) applications. The Department of Energy has selected two new projects to advance drilling performance. MASI LLC will conduct a two-phase project to determine how micro-bubbles called aphrons help seal permeable and fractured wellbore rock during drilling to minimize reservoir damage. And Terralog Technologies will undertake a comprehensive research project to advance basic understanding of physical mechanisms involved in combining percussion and rotary drilling. In Anchorage, a drilling experiment is tapping what development boosters say is a huge but neglected resource – methane gas from Alaska’s enormous coal reserves.
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