Method and device for making a hole in the ground
Method and improvement to drilling tools allowing great efficien
Method and improvement to drilling tools comprising water passag
Method and means for drilling an earthen hole
Method and means for reduction of oxygen content in drilling flu
Method and system for accessing subterranean deposits from...
Method and system for circulating fluid in a well system
Method and system for facilitating horizontal drilling
Method and system for obtaining core samples during the well-dri
Method and system to recover usable oil-based drilling muds...
Method for air rotary drilling of test wells
Method for combined jet and mechanical drilling
Method for connecting electrical conductors for electric earth b
Method for controlling a well in a subsea mudlift drilling...
Method for correcting lost circulation
Method for drilling a well through unconsolidated dolomite forma
Method for drilling and completing boreholes with...
Method for drilling coke oven top brick
Method for drilling depleted sands with minimal drilling...
Method for foam drilling using a biodegradable foaming agent