| 摘要 |
FIELD: oil and gas production. ^ SUBSTANCE: device consists of mechanism of vertical transfer along flowing pipe. The mechanism has an upper and lower support rings fastened on the flowing pipe. Also, hydro-cylinders, installed between the support rings, vertically transfer a plate mounted on the upper ring. On the plate there are arranged a unit matching axes of the ball cock and the flowing pipe, a unit screwing the ball cock into a pipe coupling, a unit of control for opening-closure and a hydro-motor actuating them. A unit of axial transfer of the ball cock to the threaded section of the coupling consisting of a hydro-cylinder and a rod is positioned under the plate. ^ EFFECT: remote control of device operation facilitating high safety level for operating personnel; raised reliability of drill column sealing. ^ 9 dwg |
