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UPDATED 1 Sept: The EI library in London is temporarily closed to the public, as a precautionary measure in light of the ongoing COVID-19 situation. The Knowledge Service will still be answering email queries via email , or via live chats during working hours (09:15-17:00 GMT). Our e-library is always open for members here: eLibrary , for full-text access to over 200 e-books and millions of articles. Thank you for your patience.
OSO technology research---concentric bit development. E. Inker. J. Offshore Technol., February 1995, 3(1), 35, 36.
A novel drilling concept is described which was the subject of a project undertaken by Weir Pumps. The design concept and experience in turbine mechanics was supplied by Weir, and Diamant Boart Stratabit provided expertise in bit design and construction. The system was aimed at deeper hole sections, where hard formations may result in a drop in performance to as low as three to four metres per hour. Details are given of the prototype tool developed---a 91/2 in. CB turbodrill and the initial field trial.
Abstract details
Journal title: Offshore Technology
Subjects: Mechanical Engineering, Construction Engineering, Project Management, Research and development, Construction, Oil and gas, Oil, Primary energy production, Oilfield development, Drill bits
