PATENT CLAIM ANALYSIS

Application Number: 16047533
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["166", "075110"]

Abstract:
A method of in-situ rock permeability enhancement involves penetration of a target formation by a well, downhole injection of a fluid, action on the fluid by static pressure and shock waves of a specific pattern transmitted downhole along a fluid waveguide and directed to the target formation from a wave reflector, thereby generating dilatant decompaction of the rock. The action on the fluid by static pressure and by shock waves occurs simultaneously, so that static pressure exceeds the capillary pressure in pores of the most common size in the decompacting rock by no less than 1.3 times. The selected shock wave amplitude is equal to or greater than the compressive or tensile stress necessary for dilatant decompaction of the rock. The proposed technical solution will make it possible to improve the efficiency of the in-situ permeability enhancement and rock decompaction process while reducing energy consumption and operating costs.

Claim (Index 6):
The apparatus of  claim 4 , wherein a fluid waveguide cross-section changes towards a bottom of the wellbore according to the following formula:\n F *o =( p * a * F * +p M a M F M )/ p *o a *o , where: F *o  is the initial fluid waveguide cross-section; p *o  is the initial process fluid density; a *o  is the initial wave velocity in the process fluid; F *  is the current fluid waveguide cross-section; p *  is the current process fluid density; a *  is the current wave velocity in the process fluid; F M  is the cross-section of the rock mass impacted by the wave; p M  is the density of the rock mass; and a M  is the wave velocity in the rock mass.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 95.0
- Lexical Diversity: 1.81395
- Patent Class: 166.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['13465105', '11449965', '15433576', '14552367', '14506178']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7833066574243472
- 35 USC 102 Novelty (BERT): 0.4790524041273905
- Combined Prediction Score: 0.7528812320946515
- Mean Citation Score: 154.86578
- Max Citation Score: 165.47655
- Similarity Product: 106.11055784243344

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

Dataset: test