Flexible routing device for well intervention

摘要

A conduit device for a petroleum well intervention string includes a first end connected to an intervention string drum unit with a drum and a second end connected to an injector head of a wellhead assembly. The conduit device, at any point between said first end and said second end, has a radius of curvature larger than or equal to a given smallest allowable radius of curvature for the intervention string. The conduit device forms a substantially incompressible fixed length path for the portion of said intervention string at any time present between the first end and the second end. The conduit device constitutes a tubular path for the intervention string.

主权项

1. A flexible routing system for a petroleum well intervention string, comprising:
a conduit device comprising a first end and a second end; an intervention string drum unit comprising a drum, a drum frame and a tension compensator arch, wherein the first end of the conduit device is connected to the intervention string drum unit and arranged at a terminal point of the drum frame of the intervention string drum unit, and the second end of the conduit device is connected to an injector head of a wellhead assembly, wherein said conduit device at any point between said first end and said second end has a radius of curvature larger than or equal to a given smallest allowable radius of curvature for said petroleum well intervention string, and forms a substantially incompressible fixed length path for a portion of said petroleum well intervention string at any time present between said first end and said second end, said conduit device constituting a tubular path for said petroleum well intervention string, and wherein the petroleum well intervention string extends along a running path from the drum to the terminal point of the drum frame, and the tension compensator arch is arranged along the running path of the petroleum well intervention string at a point between the terminal point of the drum frame and the drum.