PATENT CLAIM ANALYSIS

Application Number: 16154248
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-04
Patent Classification: ["166", "292000"]

Abstract:
Embodiments of methods for reducing lost circulation in a wellbore comprise inserting a conduit comprising a first and second end and an outer diameter and an inner diameter into the wellbore, and pumping a thixotropic cement slurry, wherein the thixotropic cement slurry will increase in viscosity with no shear and decrease in viscosity with shear, and have a power law exponent value of less than or equal to 0.3 when the thixotropic cement slurry has a density of greater than 12.69 pounds per gallon, through the conduit into the wellbore, in which the thixotropic cement slurry comprises at least one cement, at least one viscosifier, mix water, and one or more than one strength accelerating additives. The method further comprises allowing the thixotropic cement slurry to harden in the wellbore to create a plug, removing the conduit from the wellbore, and reducing lost circulation via the plug in the wellbore.

Claim (Index 11):
The method of  claim 1 , in which the thixotropic cement slurry comprises sodium meta-silicate in an amount ranging from 0.5 weight percent to 3 weight percent of cement pre-hydrated.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 97.0
- Lexical Diversity: 2.025
- Patent Class: 166.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['11946958', '15700704', '13676660', '15011750', '14907597']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8164282115183552
- 35 USC 102 Novelty (BERT): 0.499171525962562
- Combined Prediction Score: 0.7847025429627759
- Mean Citation Score: 239.361384
- Max Citation Score: 264.17365
- Similarity Product: 178.7610487406969

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

Dataset: test