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 33):
A method for operating a wellbore drilling installation for drilling a wellbore or other wellbore related activities, said installation comprising:\n a drilling tower; a drill floor having a well center allowing the passage of a drilling tubulars string along a firing line into the wellbore; at least one vertical trolley rail; a trolley, said trolley being guided along said at least one vertical trolley rail; a main hoisting device adapted to lift and lower said trolley along said at least one vertical trolley rail relative to the drilling tower; and a top drive device attached to the trolley, said top drive device comprising one or more top drive motors in order to impart rotary motion to a drilling tubulars string when connected to said top drive device, wherein the trolley comprises a frame with:\n a top frame member suspended from said main hoisting device; and \n a first vertical frame member and a second vertical frame member, 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, \n wherein each of said first and second vertical frame members comprises a lower connector member adapted to be connected or connected to a component that is adapted to be suspended from the first and second vertical frame members, wherein said top drive device is attached to the frame of the trolley independent from the first and second vertical frame members, wherein said installation further comprises one or more components each adapted to be releasably connected to and suspended from said first and second vertical frame members of the trolley, said one or more components at least including:\n a thrust bearing component provided with a thrust bearing that is adapted to support the load of a drilling tubulars string, so that said load is transmitted via said thrust bearing component to said first and second vertical frame members and thereby to said top frame member suspended from said main hoisting device, \n wherein said installation further comprises one or more carts, each adapted to transport a component to be suspended from the first and second vertical frame members, wherein each cart is adapted to be positioned on the drill floor underneath the trolley, the method including a routine for removal of a component suspended from said first and second vertical frame members including the steps of: positioning a cart on the drill floor underneath the trolley; lowering the trolley by 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; and moving away the cart with the released component to a remote location, wherein the method further includes a routine for mounting of the component to be suspended from said first and second vertical frame members of the trolley including the steps of: moving a cart carrying the component from a remote location to a position on the drill floor underneath the trolley; coupling said component with the lower connector members of the first and second vertical frame members; lifting the component from the cart; and moving the empty cart 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): 0.8063425332007153
- 35 USC 102 Novelty (BERT): 0.4986727292522293
- Combined Prediction Score: 0.7755755528058668
- Mean Citation Score: 285.1816199999999
- Max Citation Score: 313.83075
- Similarity Product: 268.59177964058523

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