PATENT CLAIM ANALYSIS

Application Number: 16129705
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-03
Patent Classification: ["507", "234000"]

Abstract:
A crude oil recovery chemical fluid is described and claimed. This fluid has been shown to exhibit excellent resistance to salt and high temperatures. This crude oil recovery chemical fluid includes a silane compound, an aqueous silica sol having an average particle diameter of from about 3 nm to about 200 nm, two or more anionic surfactants, and one or more nonionic surfactants.

Claim (Index 7):
A process for recovering crude oil from subsurface hydrocarbon comprising layer, comprising the steps of:\n (a) inserting a crude oil recovery chemical solution comprising\n a silane compound, \n an aqueous silica sol, \n two or more anionic surfactants, and \n one or more nonionic surfactants; \n into subsurface layer; and (b) recovering crude oil from a production well by use of the chemical solution which was pressed into the subsurface layer; wherein the aqueous silica sol contains silica particles in which at least a part of the silane compound is bonded on the surface of at least a part of the silica particles in the sol; wherein the silane compound is present in a ratio of from about 0.1 to about 10.0 of silane compound based on the mass of silica solid content of the aqueous silica sol; wherein the nonionic surfactants have an HLB of from about 11.0 to about 20.0, and wherein the nonionic surfactants are selected from the group consisting of polyoxyethylene alkyl ether, polyoxyethylene alkylphenol ether, alkyl glucoside, polyoxyethylene fatty acid ester, sucrose fatty acid ester, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester and fatty acid alkanolamide; and wherein the aqueous silica sol has an average particle size of from about 3 nm to about 200 nm.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 97.0
- Lexical Diversity: 1.4375
- Patent Class: 507.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16129688', '15946338', '15110655', '14004591', '15539544']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7224743715018397
- 35 USC 102 Novelty (BERT): 0.5785373802683144
- Combined Prediction Score: 0.7080806723784872
- Mean Citation Score: 279.54650000000004
- Max Citation Score: 490.7051
- Similarity Product: 429.7411067942143

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