... automated drilling process. The deployment of advanced sensors enables: Immediate diagnostics of drilling issues such as circulation losses, pack-offs, and formation washouts. Early detection of borehole instability and poor hole cleaning, reducing risks of stuck pipe and formation damage. Reduction...

... before. Safe and efficient well-construction is also key to the overall economic success of unconventional E&P programs. Shale formations can be complex and present many challenges in performance optimization, operational efficiencies, borehole quality, hole cleaning and service life of the drill...

... to the big open hole extensions, and consequently huge hole volumes, hole cleaning problems may be observed only when good portion of the hole is already covered with cuttings. 3.1. Circulation in ERW The design of such complex wells require, not only proper definition of operational parameters, but also...