Combining circumferential stresses with additional stresses produced by fluid seepage creates a new model which can be combined with the conventional model to fully describe in-situ stress regimes' ...
Rotary steerable, directional-drilling systems increased rate of penetration (ROP) and saved more than 100 days of rig time when used to drill complex 3D wellpaths in the 121/4-in. and 81/2-in. hole ...
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