PATENT CLAIM ANALYSIS

Application Number: 16190904
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-05
Patent Classification: ["166", "293000"]

Abstract:
Portland cement compositions for use in high-temperature, high pressure wells are designed such that the lime-to-silica molar ratio is between 0.5 and 1.0, and the alumina-to-silica molar ratio is between 0.05 and 0.10. After curing and setting at temperatures between 85° C. and 300° C., the cement compositions form tobermorite as an initial and permanent calcium silicate hydrate phase.

Claim (Index 1):
A method for cementing a subterranean well, comprising:\n (i) preparing a pumpable cement slurry comprising water, portland cement, a source of silica and a source of alumina; (ii) placing the cement slurry in the well; (iii) curing the cement slurry in the subterranean well at a temperature between 85\u00b0 C. and 300\u00b0 C., whereupon the cement slurry forms a set cement; wherein a lime-to-silica molar ratio is between 0.5 and 1.0 and an alumina-to-silica molar ratio is between 0.05 and 0.10.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 98.0
- Lexical Diversity: 1.3913
- Patent Class: 166.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13989809', '15941350', '16169649', '16169680', '10504772']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8001517706529134
- 35 USC 102 Novelty (BERT): 0.5057554244737363
- Combined Prediction Score: 0.7707121360349957
- Mean Citation Score: 281.292962
- Max Citation Score: 324.6056200000001
- Similarity Product: 254.3923374386884

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