THE APPLICATION OF DIRECTIONAL BUTTED WELL TECH USED IN THIN AND LOOSE GYPSUM SALT BED

摘要

In November 2007, with directional drilling butted connective water-soluble exploitation salt-rock technology, selecting drilling fluid rationally and controlling the dissolution rate according to the stratum situation, Qiao-hou Salt Mine successfully drilled a pair of directional butted wells in the complex thin and loose gypsum salt bed. It is the first success of butted well technology in such a complex stratum.