PATENT CLAIM ANALYSIS

Application Number: 16277470
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-06
Patent Classification: ["324", "309000"]

Abstract:
The longitudinal relaxation times (T 1 ) of water and hydrocarbon inside porous media, such as rock from subsurface formations, behave differently when external magnetic fields vary. A Nuclear Magnetic Relaxation Dispersion (NMRD) profile from Fast Field Cycling Nuclear Magnetic Resonance (FFC-NMR) technique differentiates the type of fluids filling the pores. Different types of pores in a rock sample are filled with different fluids, water and hydrocarbon, and the absolute porosity and the pore size of each type of pores is determined.

Claim (Index 1):
A method of obtaining a measure of porosity and pore size in the rock sample from a subsurface hydrocarbon reservoir from nuclear magnetic resonance dispersion profiles of the rock sample and nuclear magnetic resonance relaxation times, comprising the steps of:\n treating the rock sample with paramagnetic ions to coat pores on the rock sample to produce the nuclear magnetic resonance dispersion profiles; obtaining nuclear magnetic resonance relaxation times of the rock sample fully saturated with water; obtaining a nuclear magnetic resonance dispersion profile of the rock sample at irreducible water saturation; identifying pore types in the pores of the rock sample based on the obtained nuclear magnetic resonance dispersion profile of the rock sample at irreducible water saturation; determining porosity of the identified pore types based on the nuclear magnetic resonance relaxation times; and determining pore size of the identified pore types based on the nuclear magnetic resonance relaxation times.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 99.0
- Lexical Diversity: 1.44615
- Patent Class: 324.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15913171', '15333938', '12993681', '15955061', '13971515']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6004645176037245
- 35 USC 102 Novelty (BERT): 0.6139108468645311
- Combined Prediction Score: 0.6018091505298052
- Mean Citation Score: 388.811434
- Max Citation Score: 561.7677
- Similarity Product: 535.1524353083969

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