PATENT CLAIM ANALYSIS

Application Number: 15755094
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["175", "005000"]

Abstract:
A method of operating a drilling system. The drilling system includes a drill string extending into a wellbore, a driver which rotates the drill string, a pump to pump drilling fluid down the drill string, a wellhead mounted at the wellbore, a riser extending up from the wellhead around the drill string, a blowout preventer mounted on the wellhead, a riser closure device mounted in the riser, a first return conduit, and a flow outlet arranged in the riser below the riser closure device. The method includes operating the driver to stop a rotation of the drill string, closing the riser closure device if it is not already closed, operating the pump to stop a pumping of drilling fluid down the drill string, closing the blowout preventer, and increasing a wellbore pressure by controlling a rate of the flow of the fluid along the first return conduit.

Claim (Index 37):
The method as recited in  claim 34 , wherein the drilling system further comprises:\n a flow restriction device mounted in the first return conduit, the flow restriction device being configured to vary an extent to which the flow of the fluid along the first return conduit is restricted.

Metadata:
- Claim Count in Document: 91.0
- Percentile: 88.0
- Lexical Diversity: 2.65574
- Patent Class: 175.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14170666', '12936254', '15294798', '14872753', '14950122']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7858872757330134
- 35 USC 102 Novelty (BERT): 0.5359857576465357
- Combined Prediction Score: 0.7608971239243656
- Mean Citation Score: 414.903062
- Max Citation Score: 440.86136
- Similarity Product: 318.0017366152239

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