PATENT CLAIM ANALYSIS

Application Number: 15912159
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["166", "308100"]

Abstract:
A fracturing system includes a fracturing spool that mounts onto a wellhead assembly for injecting fracturing fluid into a well beneath the wellhead assembly. The fracturing system includes an isolation sleeve and fracturing spool. The isolation sleeve inserts in an axial bore of the fracturing spool, and has a lower end that extends into the wellhead to isolate and protect portions of the wellhead assembly from the fracturing fluid. A groove in an inner surface of the fracturing spool receives an annular seal for sealing between the isolation sleeve and fracturing spool. Injecting a viscous fluid into the groove energizes the seal, and blocks high pressure fracturing fluid from flowing between the isolation sleeve and fracturing spool.

Claim (Index 8):
A fracturing system for fracturing a wellbore through production tubing, comprising:\n a wellhead assembly for installing over the wellbore, the wellhead assembly having a main bore with a longitudinal axis; a hanger supported in the main bore, the hanger having a hanger bore containing a set of hanger threads; a fracturing spool selectively mounted onto the wellhead assembly and having a spool bore in communication with the main bore in the wellhead assembly; an annular isolation sleeve inserted in the spool bore and having an upper end in communication with a source of fracturing fluid and having a lower end inserted into the hanger bore, the isolation sleeve having a set of isolation sleeve threads adjacent the lower end of the isolation sleeve that selectively engage the hanger threads; an isolation sleeve seal ring on an exterior of the isolation sleeve that seals with the hanger bore, the isolation sleeve seal ring positioned within a seal ring groove; and a reduced diameter portion of the isolation sleeve, the reduced diameter portion arranged between the seal ring groove and the threads and having a smaller outer diameter than an outer diameter of the isolation sleeve above a top of the isolation sleeve seal ring.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 90.0
- Lexical Diversity: 2.2963
- Patent Class: 166.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13944467', '13944028', '14085255', '12507864', '11025453']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8126518007551767
- 35 USC 102 Novelty (BERT): 0.5677716385286236
- Combined Prediction Score: 0.7881637845325214
- Mean Citation Score: 333.84428799999995
- Max Citation Score: 454.07407
- Similarity Product: 444.4413659609169

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