Mechanical hanger running tool with fluid bearing system and method
AssigneeBaker Hughes Oilfield Operations LLC
InventorJoseph Shu Yian Liew
Life of this patent
Estimating the term…
Abstract
A hanger running tool includes a mandrel. The hanger running tool also includes a mandrel protrusion, the mandrel protrusion extending radially outward from the mandrel. The hanger running tool includes a hold down nut coupled to the mandrel and arranged axially uphole of the mandrel protrusion. The hanger running tool includes a thrust collar coupled to the mandrel and arranged axially downhole of the mandrel protrusion. The hanger running tool includes a void cavity defined, at least in part, by the hold down nut, the thrust collar, and the mandrel, wherein the mandrel protrusion is positioned within the void cavity. The hanger running tool also includes a bearing system positioned within the void cavity.
Claims19
A wellbore system, comprising:
- a tubing hanger positioned within a wellhead, the tubing hanger being moveable between a locked position and an unlocked position, the tubing hanger including an activation ring and a lock ring, wherein the activation ring drives the lock ring radially outward to transition from the unlocked position to the locked position;
- a hanger running tool coupled to the tubing hanger, the hanger running tool being moveable between a first position and a second position to apply an axial force to the activation ring, the hanger running tool comprising:
- a mandrel coupled to the tubing hanger, the mandrel being mechanically coupled to the tubing hanger such that rotation of the mandrel axially drives the mandrel in a downhole direction;
- a mandrel protrusion, the mandrel protrusion having a protrusion diameter larger than a mandrel diameter;
- a thrust collar coupled to the mandrel, the thrust collar being driven axially in the downhole direction responsive to movement of the mandrel;
- and
- a hold down nut coupled to the mandrel;
- a void cavity formed, at least in part, by the mandrel, the thrust collar, and the hold down nut, the void cavity positioned to receive the mandrel protrusion;
- and
- a bearing system positioned within the void cavity, the bearing system associated with the mandrel protrusion to enable rotation of the mandrel and to accommodate axial forces applied to the mandrel.
A hanger running tool for use with a wellbore system, comprising:
- a mandrel having a first threaded portion at an upper end and a second threaded portion at a lower end, the second threaded portion to couple to a tubing hanger, wherein rotation of the mandrel with respect to the tubing hanger axially drives the mandrel in a downhole direction;
- a mandrel protrusion, the mandrel protrusion extending radially outward from the mandrel to a protrusion diameter that is larger than a mandrel diameter;
- a hold down nut coupled to the mandrel and arranged axially above the mandrel protrusion, the hold down nut including a profile that axially overlaps at least a portion of the mandrel protrusion and also radially surrounds at least a portion of the mandrel protrusion;
- a thrust collar coupled to the mandrel and arranged axially below the mandrel protrusion, the thrust collar including a recess to receive at least a portion of the hold down nut;
- a void cavity defined, at least in part, by the hold down nut, the thrust collar, and the mandrel, wherein the mandrel protrusion is positioned within the void cavity;
- and
- a bearing system positioned within the void cavity.
A method, comprising:
- coupling, via threaded connection, a hanger running tool to a tubing hanger to form a hanger assembly;
- landing the hanger assembly in a wellhead;
- filling a void cavity of the hanger running tool with a hydraulic fluid, the void cavity formed, at least in part, by a mandrel, a hold down nut, and a thrust collar;
- rotating the mandrel of the hanger running tool, wherein rotating the mandrel causes downward movement of the mandrel along the threaded connection;
- and
- driving, via the downward movement of the mandrel, a hanger lock ring radially outward to engage one or more wellbore components of the wellhead.
Dependencies are inferred from the claim text.