PATENT CLAIM ANALYSIS

Application Number: 15767518
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["166", "075110"]

Abstract:
A method for removal of a top drive device in a wellbore drilling installation, e.g. for servicing and/or exchanging a top drive device. The frame of the trolley and the top drive device are provided with cooperating vertical guide members so that the top drive device is vertically displaceable and guided relative to the frame. The top drive device has an operative position above the rotatable head clamp assembly carrier, which is releasably connected to first and second vertical frame members. In order to service and/or exchange of the top drive device, the method includes releasing the rotatable head clamp assembly carrier from the first and second frame members, removing the rotatable head clamp assembly carrier, lowering the top drive device relative to the frame of the trolley until the cooperating vertical guide members thereof disengage, moving the lowered and disengaged top drive device to a service and/or storage location remote from the firing line.

Claim (Index 40):
The method according to  claim 33 , wherein the installation comprises a pair of parallel vertical trolley rails, and wherein said trolley comprises a rigid frame structure having an upper and lower trolley beam which are vertically spaced from another and are each equipped at ends thereof with rollers engaging the respective trolley rails, wherein the upper and lower trolley beam are rigidly interconnected by one or more rear frame members, wherein the rigid frame structure further comprises a forward cantilevered frame member extending forward from a top end of said one or more rear frame members, and wherein said forward cantilevered frame member carries a transverse horizontal top frame member in a transverse plane that encompasses the firing line, and wherein said first and second vertical frame members are each connected at an upper end thereof to said top frame member, said first and second vertical frame members depending from said top frame member spaced apart from one another and being adapted to support the load of a drilling tubulars string that passes along said firing line into the wellbore.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 91.0
- Lexical Diversity: 2.24324
- Patent Class: 166.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14922828', '14888583', '13996454', '15658118', '14061454']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8236524624311198
- 35 USC 102 Novelty (BERT): 0.5103525000361974
- Combined Prediction Score: 0.7923224661916276
- Mean Citation Score: 285.1816199999999
- Max Citation Score: 313.83075
- Similarity Product: 203.3305642004908

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

Dataset: test