Patent ID: 8613310
Filing Date: 2013-12-24
Classification: E21B

Abstract:
1. A spooling apparatus for use with a well intervention system, comprising: a pressure vessel capable of being maintained at the same pressure as the well; a spool drum mounted for rotation in the pressure vessel; a flexible line housed in the pressure vessel such that the flexible line can be spooled into or out of the vessel; and guidance means directing the flexible line to an outlet of the pressure vessel; wherein the flexible line is connected to the spool drum such that the flexible line can be spooled on or off the spool drum by rotation and the guidance means can direct the flexible line from the spool drum to the outlet; wherein the pressure vessel is provided with rolling bars arranged around the exterior of the spool drum, the flexible line being wound onto the spool drum within the rolling bars and at least one turn around the outside of the rolling bars before being lead to the outlet; and wherein a moveable end sheave is provided to guide the flexible line from the rolling bars to the spool drum.