DEVICE FOR INTERIM RETAINING SEA DRILLING RIG AT ARCTIC SHELF

摘要

FIELD: device for interim retaining sea drilling rig at arctic shelf relates to the means of exploration and production of hydrocarbon raw materials. SUBSTANCE: piles are placed in support string. Inner surface of each pile is provided with hollow stiffness ribs. Refrigerant, working liquid, and flushing liquid are passed through different ribs. EFFECT: higher efficiency. 3 cl, 7 dwg