Packer weighted and pressure differential method and apparatus f
Partially halogenated ethane solvent removal of oleophylic mater
Pneumatic drilling chip removal system and method
Pneumatic rock-boring device and method for horizontal...
Polymer enhanced foam drilling fluid
Pressure drop regulator for downhole turbine
Pressure relief process for well-drilling
Prevention of lost circulation of drilling muds
Process and apparatus for boring sites
Process and apparatus for cutting rock
Process and system for recovering solid particulate additives fr
Process and water-base fluid utilizing hydrophobically modified
Process for completing a well
Process for completing a well
Process for finding the depth of a lost return zone
Process for reestablishing circulation in a lost return zone
Process for the high-pressure grouting within the earth and appa
Process for treating drilled cuttings
Process for using biodegradable drilling muds
Production process for manufacturing low molecular weight water