PATENT CLAIM ANALYSIS

Application Number: 16041601
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["175", "006000"]

Abstract:
An offshore drilling vessel includes a floating hull subjected to heave motion. The hull includes a moonpool and a drilling tower near the moonpool. A drilling tubulars storage rack is provided for storage of drilling tubulars. The vessel includes a heave motion compensation support that is adapted to support a slip device whilst performing heave compensation motion relative to the heaving motion of the vessel. A racking device is provided with a heave motion synchronization system that is adapted to bring a tubular retrieved from the storage rack in heave motion into a vertical motion that is synchronous with the heave compensation motion of the string slip device. The racking device includes vertical rails and at least two separate motion arm assemblies mounted on said vertical rails. Each separate motion arm assembly includes its own vertical drive which is electrically connected to the heave motion synchronization system.

Claim (Index 1):
An offshore drilling vessel, the vessel comprising:\n a floating hull subjected to heave motion, the hull being provided with a moonpool; a drilling tower at or near the moonpool which drilling tower includes an inner space; a drilling tubulars storage rack adapted for storage of drilling tubulars in vertical orientation therein, the storage rack being mounted on the hull so as to be subjected to heave motion along with the hull; a tubulars string slip device, configured to support a weight of a tubulars string suspended therefrom along a firing line; a heave motion compensation support configured to support said tubulars string slip device whilst performing a heave compensation motion relative to a heaving hull of the vessel; a racking device configured to move a tubular between the storage rack and a position in the firing line above the tubulars string slip device in order to allow for making a connection between a new tubular and the suspended tubular string or the removal of a tubular from the tubular string during tripping, the racking device comprising:\n a motion system, including a controller, the motion system being configured to bring a tubular retrieved from the storage rack into a vertical motion that is synchronous with the heave compensation motion of the tubulars string slip device, thereby allowing for the connection of the tubular to the suspended tubulars string whilst the slip device performs heave compensation motion relative to the heaving hull of the vessel; and \n at least one motion arm assembly, comprising:\n a base that is vertically mobile by a vertical drive; and \n a motion arm connected to said base, the motion arm being provided with a tubular gripper member connected to said motion arm, \n wherein the vertical drive is electrically connected to the controller of the motion system, wherein the at least one motion arm assembly comprises a hydraulic power unit including a pump, wherein said hydraulic power unit is connected to the controller by at least one umbilical cable, wherein one end of the umbilical cable is connected to the controller and the other end is connected to the hydraulic power unit on board of the motion arm assembly, wherein the umbilical cable is looped around a cable length compensating device including a movable umbilical pulley to compensate for a varying umbilical cable length in between the controller and the hydraulic power unit which varying umbilical cable length is during operation caused by a motion of the motion arm assembly, wherein the umbilical pulley is provided with a counterweight to maintain a tension in the umbilical cable during the motion of the at least one motion arm assembly, wherein the cable length compensating device is positioned inside the inner space of the drilling tower.

Metadata:
- Claim Count in Document: 42.0
- Percentile: 95.0
- Lexical Diversity: 2.26471
- Patent Class: 175.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15123522', '15123553', '15520952', '15658118', '14889380']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7228546948134214
- 35 USC 102 Novelty (BERT): 0.6411342787570209
- Combined Prediction Score: 0.7146826532077813
- Mean Citation Score: 475.452178
- Max Citation Score: 625.5527
- Similarity Product: 614.5754485119343

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test