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Boring --- Diamond drilling --- Test boring --- Well-boring --- Hydraulic engineering --- Mining engineering --- Shaft sinking

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The present crude oil and natural gas reservoirs around the world have depleted conventional productionlevels. To continue enhancing productivity for the remaining mature reservoirs, drilling decision-makers couldno longer rely on traditional balanced or overbalanced methods of drilling. Derived from conventional airdrilling, underbalanced drilling is increasingly necessary to meet today's energy and drilling needs. While morecostly and extreme, underbalanced drilling can minimize pressure within the formation, increase drilling rateof penetration, reduce formation damage a

Underbalanced drilling (Petroleum engineering) --- Boring. --- Diamond drilling --- Test boring --- Well-boring --- Hydraulic engineering --- Mining engineering --- Shaft sinking --- Gas well drilling --- Oil well drilling

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Boring --- Forage --- Periodicals --- Périodiques --- Earth (Planet) --- Terre --- Crust --- Croûte --- Boring. --- Crust of the Earth. --- Earth Sciences --- Geology --- geology --- ocean drilling --- marine geophysics --- seabed sampling --- borehole observatories --- geophysical logging --- Diamond drilling --- Test boring --- Well-boring --- Hydraulic engineering --- Mining engineering --- Shaft sinking --- Earth --- Geology. Earth sciences --- Crust of the Earth --- Crusts of the planets --- Planetary crusts --- Planets --- Crust.

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Environmental engineering. --- Engineering geology. --- Finite element method. --- Mathematical models. --- Rock mechanics. --- Stability. --- Anchors structures --- Backfills --- Blasting --- Cavities --- Coal mines --- Dewatering --- Displacement --- Dolomite rock --- Explosion effects --- Field tests --- Fragmentation --- Landslides --- Linkages --- Microseisms --- Mine bursts --- Monitoring --- Penstocks --- Rock bolts --- Rock excavation --- Rock mechanics --- Rock properties --- Rocks --- Room and pillar mining --- Seismic waves --- Shaft sinking --- Slopes --- Soil classification --- Spillways --- Stability --- Stabilization --- Structural analysis --- Subways --- Swelling --- Tunneling excavation --- Tunneling machines

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This book provides a comprehensive review of drilling technologies in the polar regions, from the portable drilling equipment for shallow sampling and coring, to heavy drilling equipment for deep onshore and offshore drilling. Particular attention is given to safe drilling methods in permafrost. In recent years, interest in drilling in the polar regions has increased under the pressure of the geopolitical “rush” and the undiscovered resource potential. In addition, borehole monitoring of permafrost thermal states is urgently needed to obtain evidence of climate change. The book focuses on the latest drilling technologies but also discusses the historical development of sampling, and drilling tools and devices, over the last 60–70 years providing valuable insights into a way forward and future possibilities.

Geotechnical engineering. --- Geography. --- Earth sciences. --- Civil engineering. --- Environmental monitoring. --- Mineralogy. --- Geotechnical Engineering and Applied Earth Sciences. --- Regional Geography. --- Earth and Environmental Sciences. --- Civil Engineering. --- Environmental Monitoring. --- Physical geology --- Crystallography --- Minerals --- Biomonitoring (Ecology) --- Ecological monitoring --- Environmental quality --- Monitoring, Environmental --- Applied ecology --- Environmental engineering --- Pollution --- Engineering --- Public works --- Geosciences --- Environmental sciences --- Physical sciences --- Cosmography --- Earth sciences --- World history --- Engineering, Geotechnical --- Geotechnics --- Geotechnology --- Engineering geology --- Measurement --- Monitoring --- Boring. --- Diamond drilling --- Test boring --- Well-boring --- Hydraulic engineering --- Mining engineering --- Shaft sinking