HANGER FOR ROUND-TRIP OF TUBING STRING IN INCLINED WELLHEADS Russian patent published in 2010 - IPC E21B19/06 

FIELD: oil and gas production.

SUBSTANCE: hanger comprises a body provided with jaws from beneath divided by a radial pipe sample and a grip fixture rotatable and fixed while locked. The grip fixture is equipped with an external lever, while the body has a cross-section closed groove for the lever of the grip fixture. The body is provided with a latch mechanism that represents a spring-assisted rod interacting with and fixing the lever of grip fixture while locked. Inside the jaws there is a ring sample that interacts with the latch mechanism designed as a hollow cylinder mounted in the ring sample and turnable about the body axis to be closed along the pipe perimeter. In parallel to the inclined wellhead there is a guide provided with a carriage designed to enable longitudinal motion of the guide. The carriage and the hanger body are pivotally interconnected.

EFFECT: improved reliability of the device, downsizing and reduced weight with possibility to centre the tubing string in relation to the axis of the inclined wellhead.

3 cl, 3 dwg