PATENT CLAIM ANALYSIS

Application Number: 16040307
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-04
Patent Classification: ["166", "401000"]

Abstract:
The present invention provides a modified nano-graphite particle three-phase foam profile control and flooding system, which comprises a liquid phase and a gas phase, wherein the liquid phase comprises 0.15%-0.35% foaming agent, 0.04-0.1% foam stabilizer, and water that accounts for the remaining content, the sum of weight percentages of above components is 100%; a gas-liquid ratio of the gas phase to the liquid phase is (1-3):1. The foaming agent is selected from one of alkylsulfopropyl betaine and alkylamidopropyl betaine or a combination of them. The foam stabilizer is modified nano-graphite particles in 80-150 nm particle diameter. The present invention further provides a preparation method of the modified nano-graphite particle and a preparation method of the three-phase foam profile control and flooding system. The nano-graphite particle three-phase foam profile control and flooding system provided in the present invention can greatly improve the stability of generated foams, has excellent fluidity control capability, is low in cost, simple to prepare, and convenient for large-scale field construction.

Claim (Index 11):
The method according to  claim 10 , wherein the stirring time for dispersion in step 1 is 5-10 min.; and\n the foaming agent in step 2 is selected from one of alkylsulfopropyl betaine and alkylamidopropyl betaine or a combination thereof.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 95.0
- Lexical Diversity: 2.08989
- Patent Class: 166.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15416850', '15519540', '12769144', '15147159', '15651528']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.797964784765593
- 35 USC 102 Novelty (BERT): 0.4969706281922478
- Combined Prediction Score: 0.7678653691082585
- Mean Citation Score: 222.37105000000005
- Max Citation Score: 230.34297
- Similarity Product: 138.7333988663095

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