... JZ 3 1/2" IADC 137 Kingdream Cone cactus Certification:API&ISO Delivery iterm:Sea/Air Delivery ... Applicablewater well, oil field, construction, geothermal, directional boring, and underground foundation work Formationsticky, soft, medium hard, hard formation ... water well,oil field, construction, geothermal, directional boring,and underground foundation work. Formation stick,soft medium hard hard ...