Potentially hundreds of feet long, the bottom hole assembly (BHA) runs from the drill bit to the drill pipe and comprises various application-dependent tools, among them rotary steerable systems, ...

ABERDEEN, Scotland--(BUSINESS WIRE)--Sept. 3, 2003--Schlumberger Oilfield Services announced today that it has signed a contract with Shell UK Ltd and BP Exploration Operating Company Ltd. to develop ...

03 September 2003Shell, BP To Support Technology Development of Slimhole, Through-Tubing Rotary Drilling Tool HOUSTON - Schlumberger Oilfield Services announced today that it has signed a contract ...

Rotary drilling with positive-displacement motors can introduce positional inaccuracies that remain undetected with stationary surveys and lead to potentially mistaken drilling decisions. Part 1 of ...

BAAR, Switzerland, April 26, 2018 /PRNewswire/ -- Weatherford International plc (NYSE: WFT) today announced the commercial release of the Magnus™ rotary steerable system, which combines reliable, high ...