PATENT CLAIM ANALYSIS

Application Number: 15775009
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["166", "300000"]

Abstract:
The present invention discloses a phase change fracturing fluid system for phase change fracturing, including the following components in percentage by weight: 10%-40% of supramolecular construction unit, 0-40% of supramolecular function unit, 0.5%-2% of surfactant, 0-5% of inorganic salt, 0.5%-2% of oxidizing agent, 0-2% of cosolvent and the remaining of solvent. The supramolecular construction unit is melamine, triallyl isocyanurate, or a mixture thereof. The supramolecular function unit is vinyl acetate, acrylonitrile, or a mixture thereof. The solvent is methylbenzene, ethylbenzene, o-xylene, m-xylene or p-xylene. In the fracturing construction process, a conventional fracturing fluid is used for fracturing a formation first; the phase change fracturing fluid is then injected into the formation, or the phase change fracturing fluid and other fluids which cannot be subjected to phase change are injected into the formation together.

Claim (Index 11):
The phase change fracturing fluid system for phase change fracturing according to  claim 3 , wherein in a fracturing construction process, a fracturing fluid is used for fracturing a formation first; a phase change fracturing fluid is then injected into the formation, or a mixture of the phase change fracturing fluid and a first fluid is injected into the formation, the first fluid cannot be subjected to a phase change.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 93.0
- Lexical Diversity: 2.12658
- Patent Class: 166.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15775384', '10253302', '13300297', '13979823', '11561986']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7954357341999945
- 35 USC 102 Novelty (BERT): 0.4838840590644812
- Combined Prediction Score: 0.7642805666864432
- Mean Citation Score: 193.23753
- Max Citation Score: 250.7018
- Similarity Product: 198.04803177901505

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