MOUSEHOLE TUBULAR RETENTION SYSTEM

摘要

The systems, devices, and methods described herein describe a tubular retention system arranged over a mousehole. The tubular retention system includes load bearing plates that are mutually opposed, vertically aligned, and connected to an eternal support structure via upper and lower links that, together, form a parallelogram shape movable to engage tubulars of varying diameters. The load bearing plates are pulled down by a biasing system to engage the tubular and synchronized by a lifting ring connecting the load bearing plates together. Mutually opposing deflector plates are connected to the load bearing plates and move in response to the downward movement of the load bearing plates, providing a centering force against the tubular to assure proper retention once the load bearing links engage the tubular. An upward force enables the load bearing plates to return upward and outward to release the tubular.

主权项

1. A tubular retention system, comprising:
an external support structure having a longitudinal axis and surrounding an open center configured to receive a tubular; a plurality of load bearing plates each comprising a die, the plurality of load bearing plates each being coupled to the external support structure via respective upper links and respective lower links and moveable to accommodate a plurality of tubular diameters; and a biasing system configured to impart a force on the plurality of load bearing plates, the plurality of load bearing plates moveable relatively inward toward a center of the external support structure in response to the force until each respective die engages respective surfaces of the tubular along a circumference of the tubular, a weight of the tubular being transferred via the upper and lower links of each load bearing plate to the external support structure.