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 36):
The method according to  claim 33 , wherein 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 method comprising the step of vertically displacing the top drive device to an operative position above a component held by the lower connector members of the first and second vertical frame members, and\n wherein the vertical guide members are embodied such that removal of the top drive is allowed by a routine comprising the steps of: positioning a cart on the drill floor underneath the trolley; lowering the trolley by means of the main hoisting device and bringing the component to rest on the cart; releasing the component from the lower connector members of the first and second vertical frame members; moving away the cart with the released component resting thereon to a remote location; positioning a cart on the drill floor underneath the trolley; lowering the top drive device relative to said frame of said trolley until said cooperating vertical guide members thereof disengage and the bringing the top drive device to rest on said cart; and moving the cart with said lowered and disengaged top drive device resting thereon to a remote location.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 91.0
- Lexical Diversity: 2.24324
- Patent Class: 166.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14922828', '14888583', '13996454', '15658118', '14061454']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8057566089859101
- 35 USC 102 Novelty (BERT): 0.5074445710890597
- Combined Prediction Score: 0.775925405196225
- Mean Citation Score: 285.1816199999999
- Max Citation Score: 313.83075
- Similarity Product: 207.57986052735149

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