PATENT CLAIM ANALYSIS

Application Number: 16249135
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-05
Patent Classification: ["166", "363000"]

Abstract:
A dual gradient drilling system includes a subsea blowout preventer disposed above a wellhead, the subsea blowout preventer having a central lumen configured to provide access to a wellbore, a lower section of a marine riser fluidly connected to the subsea blowout preventer, a closed-hydraulic positive displacement subsea pump system fluidly connected to the lower section of the marine riser and disposed at a predetermined depth, an annular sealing system disposed above the closed-hydraulic positive displacement subsea pump system, and an independent mud return line fluidly connecting one or more pump heads of the closed-hydraulic positive displacement subsea pump system to a choke manifold disposed on a floating platform of a rig.

Claim (Index 10):
The riser-less dual gradient drilling system of  claim 1 , wherein the closed-hydraulic positive displacement subsea pump system does not include dynamic seals exposed to drilling fluids.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 99.0
- Lexical Diversity: 2.07018
- Patent Class: 166.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['16249186', '16249089', '14170666', '15258504', '14054235']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8482681823241454
- 35 USC 102 Novelty (BERT): 0.6397535462598594
- Combined Prediction Score: 0.8274167187177167
- Mean Citation Score: 455.368054
- Max Citation Score: 643.2491
- Similarity Product: 597.2379236109435

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

Dataset: test