OIL FIELD LIFT, METHOD AND APPARATUS FOR COUPLING A TUBULAR SEGMENT

摘要

oilfield lift, method and apparatus for coupling a tubular segment. an oilfield elevator is described and has first and second body halves (102a, 102b) hingedly coupled to a hinge (104) and movable between an open position and a closed position for receiving and moving a tubular segment. rotating wedges (130a, 130b, 130c, 130d) are slidably received into corresponding tapered grooves (128) in the elevator (100) and are configured to translate vertically into the tapered grooves (128) and at the same time radially from each other. able to capture a wide range of tubulars having varying outside diameters. tensioning straps 140a, 140b are pivotally coupled to first and second body halves 102a, 102b and movable between locked and unlocked positions. locking the tension loops (140a, 140b) engages the rotating wedges via biasing elements (144), and forces the rotating wedges into radial contact with the tubular segment (602, 702). unlocking the tension loops (140a, 140b) releases the biasing elements (144).