Patent ID: 9464733
Filing Date: 2016-10-11
CPC Classification: E02D,F16L

Claim Text:
1. A method of supporting a pipeline subsea, comprising: a) positioning a gravity driven pile based device to a predetermined position near a subsea pipeline, the gravity driven pile based device comprising: b) allowing the weight of the gravity driven pile based device to embed a predetermined portion of the gravity driven pile based device into a sea floor proximate the pipeline; c) after the gravity driven pile based device is embedded into the sea floor, actuating a motor to turn the lead screw, thus extending the rollers until they are directly under the pipeline; d) using a remotely operated vehicle (“ROV”) to move the roller box until the roller box is axially aligned with the pipeline; e) using the ROV to actuate the cylinder, thereby extending the cylinder to change a position of the jacking frame assembly; f) once the cylinder is fully extended, using the ROV to retract the cylinder to reposition the carriage assembly; g) repeating the process in steps (d)-(f) until the pipeline is at a desired height relative to the sea floor; h) using the ROV to install a first pin in the carriage assembly and a second pin in the jacking frame to fix the positions of the carriage assembly and the jacking frame relative to the sea floor; and i) using the ROV to install a continuity pin in a threaded boss on the carriage and jacking frame.