PATENT CLAIM ANALYSIS

Application Number: 16287746
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-08
Patent Classification: ["175", "058000"]

Abstract:
Mitigating drilling circulation loss can be implemented as a wellbore drilling system that includes a drilling liner and a drill head assembly. The drilling liner is configured to be positioned in a lost circulation zone of a subterranean formation in which a wellbore is being drilled. The drilling liner is configured to flow wellbore drilling fluids from a surface of the wellbore to the subterranean formation while avoiding the lost circulation zone. The drill head assembly is attached to a downhole end of the drilling liner, and is configured to drill the subterranean formation to form cuttings, receive the wellbore drilling fluids, and flow the cuttings and the wellbore drilling fluids into the drilling liner while avoiding the lost circulation zone and towards the surface of the wellbore.

Claim (Index 13):
The method of  claim 12 , wherein receiving and flowing, by the return flow control subsystem, comprises:\n sealing, by an inflatable packer included in the return flow control subsystem, the drilling liner against the wellbore casing; and flowing, by flow passages included in the return flow control subsystem, the drilling fluids mixed with the cuttings from the liner annulus to the wellbore casing annulus.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 99.0
- Lexical Diversity: 2.7551
- Patent Class: 175.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15606501', '14993646', '12949170', '11850479', '10911223']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7581079661592243
- 35 USC 102 Novelty (BERT): 0.5966780990140328
- Combined Prediction Score: 0.7419649794447052
- Mean Citation Score: 391.520452
- Max Citation Score: 590.64233
- Similarity Product: 475.245710669424

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