Jacking frame with a wellhead centralizer

摘要

A jacking frame for an oil well offshore platform is provided that includes a support structure (11, fig 1); a coiled tubing injector (12, fig 1) supported by the support structure (11, fig 1) and having a longitudinal axis; and a centralizer 22 attached to the support structure (11, fig 1), which moves a wellhead of the platform into alignment with the longitudinal axis of the coiled tubing injector (12, fig 1). The centralizer 22 can comprise a pair of hydraulic arms 24, 26 which are moveable into contact with a wellhead riser 18.