PATENT CLAIM ANALYSIS

Application Number: 16370577
Application Type: Utility
Filing Date: 2019-03
Publication Date: 2019-07
Patent Classification: ["166", "300000"]

Abstract:
The flow of a stimulation fluid may be diverted from a high permeability zone to a low permeability portion of a subterranean formation by use of an acid soluble or acid degradable solid particulate and a composite of an acid or an acid generating compound adsorbed onto a water-insoluble adsorbent. Conductive flow of hydrocarbons from an occluded fracture may be resumed by release of the acid from the adsorbent or the acid generating compound.

Claim (Index 20):
A method of increasing the stimulated rock volume of a shale formation comprising:\n (a) pumping into a well which penetrates the shale formation an acid soluble or acid degradable solid particulate and a composite comprising an acid generating compound adsorbed onto a water-insoluble adsorbent wherein:\n (i) the acid soluble or acid degradable solid particulate is alumina, calcium carbonate, benzoic acid, mineral fiber, sand or a mixture thereof; \n (ii) the acid is citric acid, phosphonic acid, sulfamic acid, adipic acid, formic acid, phosphoric acid, hydrochloric acid, acetic acid or toluenesulfonic acid or a mixture thereof; \n (iii) the acid generating compound is a carboxylic acid ester, an acid anhydride or a lactone or a mixture thereof; and \n (iv) the water-insoluble adsorbent is activated carbon, silica particulate, precipitated silica, zeolite, diatomaceous earth, ground walnut shells, fuller's earth or an organic synthetic polymer or a mixture thereof; \n (b) blocking at least a portion of the shale formation with the acid soluble or acid degradable solid particulate; (c) pumping a stimulation fluid into the well; (d) diverting the flow of the stimulation fluid from the blocked portion of the subterranean formation to another portion of the formation, wherein the permeability of the subterranean formation blocked by the acid soluble or acid degradable solid particulate is greater than the permeability of the another portion of the formation; and (e) solubilizing or degrading the solid particulate by releasing the acid from the water-insoluble adsorbent.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 99.0
- Lexical Diversity: 1.76744
- Patent Class: 166.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14713694', '13678431', '13017745', '13017856', '13017611']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8009975596369849
- 35 USC 102 Novelty (BERT): 0.5607523958894964
- Combined Prediction Score: 0.7769730432622362
- Mean Citation Score: 312.2910720000001
- Max Citation Score: 462.0966
- Similarity Product: 423.5847857758284

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