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 ...
HOUSTON, Sept. 10-- A new through-tubing rotary drilling and well technology makes possible the reuse of old subsea wells in a simpler and more inexpensive way, according to StatoilHydro. The ...
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