PATENT CLAIM ANALYSIS

Application Number: 16440452
Application Type: Utility
Filing Date: 2019-06
Publication Date: 2019-09
Patent Classification: ["702", "012000"]

Abstract:
The disclosure relates to methods for determining imbibition of hydraulic fracturing fluids into hydrocarbon-bearing formations. More specifically, the disclosure relates to laboratory methods for determining certain unconventional flow parameters to measure the imbibition over time of hydraulic fracturing fluids into a low-permeability hydrocarbon-bearing rock formation.

Claim (Index 1):
A method of determining a rate of fluid imbibition into a low-permeability, hydrocarbon-bearing rock matrix, the method comprising the steps of:\n preparing a sample obtained from the low-permeability, hydrocarbon-bearing rock matrix for a spontaneous imbibition test with a fluid, the fluid operable for use in hydraulic fracturing of the low-permeability, hydrocarbon-bearing rock matrix; conducting the spontaneous imbibition test on the sample; recording cumulative imbibition of the fluid into the sample over time; determining an unconventional flow index, the unconventional flow index representing unconventional flow, and the unconventional flow index determined by a relational assumption where liquid flux into the sample causing the cumulative imbibition is a power function of a pressure gradient of the sample; measuring volumetric liquid content spatial distribution along the sample after the spontaneous imbibition test; determining a transport parameter of the sample responsive to: the volumetric liquid content spatial distribution along the sample after the spontaneous imbibition test; an initial liquid content of the sample before the spontaneous imbibition test; and the unconventional flow index; and determining the rate of fluid imbibition into the low-permeability, hydrocarbon-bearing matrix over time responsive to the unconventional flow index and the transport parameter.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 100.0
- Lexical Diversity: 1.5
- Patent Class: 702.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15160858', '12974229', '15222716', '16229616', '15590643']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.1709167107568094
- 35 USC 102 Novelty (BERT): 0.6018020635039645
- Combined Prediction Score: 0.2140052460315249
- Mean Citation Score: 292.78346
- Max Citation Score: 536.4256
- Similarity Product: 490.51075606117246

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