PATENT CLAIM ANALYSIS

Application Number: 15992907
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["702", "006000"]

Abstract:
Provided are systems and methods for determining fracture toughness of a subsurface geologic formation. Embodiments include collecting (from drilling fluid circulated into a wellbore during a drilling operation) a drill cutting generated by a drill bit cutting into a subsurface formation, preparing (from the drill cutting) a drill cutting specimen comprising a miniature single edge notch beam (SENB) having a specified length in the range of 1 millimeter (mm) to 100 mm, conducting a three-point bend testing of the drill cutting specimen to generate load-displacement measurements for the drill cutting specimen, and determining (based on the load-displacement measurements for the drill cutting specimen) a fracture toughness of the subsurface formation.

Claim (Index 1):
A method for logging fracture toughness of a geologic subsurface formation:\n drilling, into a subsurface formation, a wellbore, the drilling comprising circulating a drilling fluid to capture drill cuttings generated by a drill bit cutting into the subsurface formation; collecting, from the drilling fluid, samples of the drill cuttings captured by the drilling fluid, a first subset of the drill cuttings being associated with a first depth in the subsurface formation, and a second subset of the drill cuttings being associated with a second depth in the subsurface formation; preparing, from the first subset of the drill cuttings, a first set of drill cutting specimens, each drill cutting specimen of the first set of drill cutting specimens comprising a miniature single edge notch beam (SENB) having a specified length, the specified length in the range of 1 millimeter (mm) to 100 mm; preparing, from the second subset of the drill cuttings, a second set of drill cutting specimens, each drill cutting specimen of the second set of drill cutting specimens comprising a miniature SENB having the specified length; conducting three-point bend testing of the first set of drill cutting specimens to generate a first set of load-displacement measurements; determining, based on the first set of load-displacement measurements, a first fracture toughness for the first depth in the subsurface formation; conducting three-point bend testing of the second set of drill cutting specimens to generate a second set of load-displacement measurements; determining, based on the second set of load-displacement measurements, a second fracture toughness for the second depth in the subsurface formation; and generating a fracture toughness log for the subsurface formation comprising a mapping of fracture toughness versus depth in the formation, the mapping comprising a mapping of the first fracture toughness to the first depth in the subsurface formation, and a mapping of the second fracture toughness to the second depth in the subsurface formation.

Metadata:
- Claim Count in Document: 62.0
- Percentile: 93.0
- Lexical Diversity: 1.98413
- Patent Class: 702.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14424116', '14935208', '13714485', '13706902', '11850479']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2166891607349472
- 35 USC 102 Novelty (BERT): 0.4890002726498705
- Combined Prediction Score: 0.2439202719264395
- Mean Citation Score: 239.45121
- Max Citation Score: 252.13266
- Similarity Product: 200.0293960132992

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