PATENT CLAIM ANALYSIS

Application Number: 15880581
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-06
Patent Classification: ["166", "245000"]

Abstract:
A method for in situ solution mining of a mineral from an underground evaporite stratum using a set of wells in fluid communication with at least one mineral cavity with some wells operated in solvent injection mode and other wells operated in brine production mode and optionally with some inactive wells, comprising switching the operation mode of one or more wells. The evaporite mineral preferably comprises trona. The at least one cavity may be formed by directionally drilled uncased boreholes or by lithological displacement of the evaporite stratum at a weak interface with an underlying insoluble stratum by application of a lifting hydraulic pressure to create an interfacial gap. The extracted brine can be processed to make valuable products such as soda ash and/or any derivatives thereof. This method can provide more uniform dissolution of mineral in the cavity, minimize flow channeling, minimize sodium bicarbonate blinding for solution mining of incongruent trona ore, and/or may avoid uneven deposit of insolubles.

Claim (Index 10):
The method according to  claim 1 , wherein the at least one cavity is initially formed by a lithological displacement of the mineral stratum, said lithological displacement being performed when said mineral stratum is lying immediately above a water-insoluble stratum of a different composition with a weak parting interface being defined between the two strata and above which is defined an overburden up to the ground surface, said lithological displacement comprising injecting a fluid at the parting interface to lift the evaporite stratum at a lifting hydraulic pressure greater than the overburden pressure, thereby forming an interface gap which is a nascent mineral cavity at the interface and creating said mineral free-surface

Metadata:
- Claim Count in Document: 45.0
- Percentile: 86.0
- Lexical Diversity: 1.69
- Patent Class: 166.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14657448', '14062877', '13193995', '14526044', '12487802']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8175640755513041
- 35 USC 102 Novelty (BERT): 0.683704071513723
- Combined Prediction Score: 0.804178075147546
- Mean Citation Score: 451.64056199999993
- Max Citation Score: 728.9317
- Similarity Product: 709.9222819230795

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test