دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the drilling line from the crown block sheave to the anchor. so called because it does not move. Comparefastline.

n: that sheave on the crown block over which the fastline is reeved.

n: the idle wheel whose rotate speed is the fastest on the crown block,and the fast line has to pass this idle wheel to reach the barrel

n: the end of the drilling line that is affixed to the drum or reel of the drawworks, so called because it travels with greater velocity than any other portion of the line. Compare deadline.

n: The end of the drilling line which is fixed to the drawworks drum or reel. It is so called because it apparently travels with greater velocity than any other portion of the drilling line.

n: a device fitted on the drawworks and used to cause the fastline to reverse its direction on the drawworks drum or spool when a layer of line is completed on the drum and the next layer is started.

n: a rubber component that fixes on the drillwork of rig, which makes fast line begin reversely at the another layer after completion of one layer on the cyliner.