WELL SERVICING UNIT WITH CONTINUOUS COIL TUBING Russian patent published in 2014 - IPC E21B19/22 

FIELD: oil and gas industry.

SUBSTANCE: well servicing unit with continuous coil tubing consists of a transportation base, a control cabin, a drum with a central shaft for coil tubing winding on rests, an ejector, a mechanism bringing the ejector and the control cabin into work position and pack-off head. In the transportation base, there is a cavity closed from the ground side. The drum is installed in a way that part of its periphery zone, facing the transportation base frame, is in the cavity. Distance from drum rotation axis to the top plane of frame of transport means is minimum two, and preferably two and more, times larger than the distance from the bottom point of the drum rim in recess to the top plane of transport means frame. The rests for the drum shaft are designed with capability of changing the position height of the drum shaft from the frame of the transportation base. Drum position height is changed as far as a tube is winded off/on from/on the drum discretely, after winding off/on of the next tube layer. The drum is kinematically linked with a device for measuring the rests height.

EFFECT: higher performance quality of well-servicing works.

2 cl, 4 dwg