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 1):
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 on the wellhead assembly; a spool bore in the fracturing spool that is in communication with the main bore and which defines an inner surface in the fracturing spool; an isolation sleeve coaxially disposed in the spool bore and having a lower end that extends into the hanger bore, the isolation sleeve having isolation sleeve threads on the lower end of the isolation sleeve that selectively engage the hanger threads, the isolation sleeve having an isolation sleeve seal ring on an exterior portion of the lower end above the isolation sleeve threads that seals against the hanger bore; and a seal ring groove formed in the isolation sleeve that receives the seal ring, the seal ring groove having a seal ring groove inner diameter that is less than a first diameter of the isolation sleeve uphole of the seal groove and less than a second diameter of the isolation sleeve downhole of the seal ring groove and above the isolation sleeve threads, the first diameter being greater than the second diameter.

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): 0.8128095174964493
- 35 USC 102 Novelty (BERT): 0.5672399279781726
- Combined Prediction Score: 0.7882525585446216
- Mean Citation Score: 333.84428799999995
- Max Citation Score: 454.07407
- Similarity Product: 440.58897179434416

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