System for drilling under-balanced wells

System for driving a wire loop cutting element

System for driving an anchoring element deep in the ground

System for driving open end pipe piles on the ocean floor...

System for dually completing oil wells

System for enhancing fluid flow in a well

System for erecting an oil well derrick

System for eroding solids with a cavitating fluid jet

System for expanding a tubular element in a wellbore

System for expelling volatile impurities from groundwater

System for extracting natural gas hydrate

System for fabricating muntin bars from sheet material

System for fastening a rail

System for fastening a rail for rail vehicles

System for fastening a rail to its support

System for fastening linings

System for fixedly mounting a case or the like box- shaped...

System for fixing an object in the ground by means of a peg

System for forming a window and drilling a sidetrack wellbore

System for forming and insulating concrete slab edges