| 摘要 |
FIELD: mechanical engineering; lifts and elevators. ^ SUBSTANCE: proposed lift has cabin installed for moving in lift well between wellhead and sump. Lift cabin is provided with roof. Drive of lift is connected by at least one traction cable with lift cabin. Roof of lift is made accessible for maintenance personnel. Drive is arranged, at least partially, in wellhead over first area of roof. Zone of access of roof is limited by second area. ^ EFFECT: economy of well space. ^ 11 cl, 4 dwg |
