fracturation hydraulique en plusieurs étapes

CONT: ... in many shale formations, the fracing process is repeated a number oftimes in isolated segments along the length of the wellbore. This is multistagefracing, which increases the well’s production by stimulating a larger portion of the underground formation. The multiple stages set for fracing may be along vertical or horizontal wellbores, and in new or existing wells.
OBS: The terms ""fraccing"" and ""fracing,"" short for ""fracturing,"" are pronounced ""fracking.""