75732722
Jun 21, 1999
Aug 28, 2001
Downhole, automated, rotary closed loop drilling and formation evaluation system, consisting primarily of a drill bit, a steering unit, measure-while-drilling platform comprising of resistivity, vibration and gamma sensors with additional modular nuclear measurement and pressure options, that is used for precision directional drilling and geosteering in subterranean oil, gas, water, mineral and geothermal cell formations
Machinery