Patent ID: 9284806
Filing Date: 2016-03-15
CPC Classification: E21B

Claim Text:
1. A system for pulling a subsea structure, the system comprising: an adapter configured to be mounted to an upper end of a subsea pile; an interface assembly fixably coupled to the adapter, wherein the interface assembly has a longitudinal axis and includes a first channel configured to receive a flexible tension member and a first chuck disposed in the first channel, wherein the first chuck is configured to pivot about a horizontal axis between an unlocked position slidinglv engaging the flexible tension member and allowing the flexible tension member to move through the first channel in a first axial direction and a locked position engaging the flexible tension member and preventing the tension member from moving through the first channel in a second axial direction that is opposite the first axial direction; a tension assembly moveably coupled to the adapter axially adjacent the interface assembly, wherein the tension assembly includes a second channel configured to receive the flexible tension member and a second chuck disposed in the second channel, wherein the second chuck is configured to pivot about a horizontal axis between an unlocked position slidingly engaging the flexible tension member and allowing the flexible tension member to move through the second channel in the first axial direction and a locked position engaging the flexible tension member and preventing the tension member from moving through the second channel in the second axial direction; a linear actuator configured to move the tension assembly axially relative to the interface assembly, wherein the linear actuator extends axially from the interface assembly to the tension assembly.