PATENT CLAIM ANALYSIS

Application Number: 16075894
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-03
Patent Classification: ["166", "292000"]

Abstract:
A well cementing composition that includes water, portland cement, a retarder and colloidal amorphous silica, present at a concentration between 0.2% and 1.0% by weight of cement. When added at such concentrations, the colloidal amorphous silica behaves as a retarder aid at bottomhole circulating temperatures exceeding 100° C. Methods for employing these compositions in well cementing operations are also disclosed.

Claim (Index 10):
A method for cementing a subterranean well, comprising:\n (i) preparing a cement slurry, the slurry comprising water, portland cement, a retarder and colloidal amorphous silica, wherein the colloidal amorphous silica is present at a concentration between 0.2% and 1.0% by weight of cement; and (ii) placing the cement slurry in the subterranean well, wherein during placement the slurry is exposed to a temperature exceeding 100\u00b0 C., wherein the colloidal amorphous silica acts synergistically with the retarder, resulting in a thickening time that is longer than that which would be obtained if the retarder were present by itself.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 96.0
- Lexical Diversity: 1.33333
- Patent Class: 166.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13881709', '12632407', '10570377', '12091515', '12938429']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8091815531840124
- 35 USC 102 Novelty (BERT): 0.51442668231462
- Combined Prediction Score: 0.7797060660970733
- Mean Citation Score: 298.5800040000001
- Max Citation Score: 349.8513
- Similarity Product: 262.0773309313237

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