| 摘要 |
A tubular service device, for cleaning, sandblasting, painting, etc. the exterior surface of a tubular. A hoop is positioned on a tubular string by a plurality of rollers, and holds a plurality of nozzles at a desired distance from the tubular surface. A pressurized fluid, such as a cleaning fluid, is pumped through the nozzles onto the tubular surface, at high pressures if required. The device is moved along the length of the tubular by powered rollers or a cable hoist. The tubular service device can also be used to paint or sandblast the tubular surface. A hood or enclosure may be added around the device to capture liquids and solids. The apparatus may be operated remotely, permitting personnel to remain in a secure location while elevated locations are cleaned. |
