PATENT CLAIM ANALYSIS

Application Number: 15767447
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["175", "202000"]

Abstract:
A method for servicing a top drive device of a wellbore drilling installation. The installation comprises a drilling tower, a drill floor having a well center through which a drilling tubulars string can pass along a firing line. A trolley is guided along a vertical trolley rail. A top drive device is attached to the trolley and comprises one or more top drive. A motion arm assembly comprises a base and an extensible and retractable motion arm, wherein the base is guided by a vertical motion arm rail. The motion arm has an operative reach that encompasses the firing line. The motion arm assembly is adapted to support at least one of a well center tool, e.g. an iron roughneck tool and a tubular gripper member, and allowing to bring said well center tool or tubular gripper member in the firing line. In order to remove a top drive motor from the top drive device whilst the rest of the top drive device remains attached to the trolley, the motion arm assembly and/or the trolley are operated so that the top drive motor is within the operative reach of the motion arm, the motion arm is operated to reach the top drive motor and the top drive motor is connected to the motion arm, and then the motion arm is used to support and/or lift, lower said top drive motor upon disconnection thereof from the rest of the top drive device.

Claim (Index 15):
In combination a wellbore drilling trolley and top drive device, which comprises:\n a trolley, said trolley being adapted to be guided along at least one vertical trolley rail, a top drive device attached to the trolley, said top drive device comprising: one or more top drive motors, a gearbox or transmission housing, and a rotary stem or quill driven by said one or more top drive motors, wherein said top drive device is adapted to impart rotary motion to a drilling tubulars string when connected to said rotary stem or quill of the top drive device, wherein the trolley comprises a frame with a top frame member that is adapted to be suspended from one or more winch driven cables of a hoisting device, wherein the frame supports, below said top drive device, a rotatable head clamp assembly that is provided with an open-centered rotary body with a vertical passage there through that allows to lower the rotatable head clamp assembly from above over the top end of a tubular in the firing line, wherein the rotatable head clamp assembly is provided with a tool joint retainer assembly, that is embodied to axially retain a tool joint at the top end, of the tubular whilst the tool joint, remains accessible for the rotary stem or quill of the top drive device, said tool joint having a shoulder and said rotatable head clamp assembly having one or more retainers that are engageable underneath said shoulder, and wherein the rotatable head clamp assembly is provided with a thrust bearing adapted to support the load of a drilling tubular string during a drilling process, when the quill or rotary stem of top drive device is connected to the tool joint of the top end, of the drilling string.

Metadata:
- Claim Count in Document: 27.0
- Percentile: 91.0
- Lexical Diversity: 2.77419
- Patent Class: 175.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15767518', '14888583', '14922828', '15123522', '15658118']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7122096374451409
- 35 USC 102 Novelty (BERT): 0.5288439747789759
- Combined Prediction Score: 0.6938730711785245
- Mean Citation Score: 301.29297799999995
- Max Citation Score: 404.61044
- Similarity Product: 347.0375297348237

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

Dataset: test