PATENT CLAIM ANALYSIS

Application Number: 16123998
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-01
Patent Classification: ["175", "057000"]

Abstract:
A centralizer is provided for centralizing a tubular, such as a drill pipe, in a wellbore. The centralizer has a resilient inner sleeve having three or more protruding members extending radially outwardly from an outer surface of the inner sleeve. The inner sleeve receives the tubular and spaces the tubular from the wellbore. The centralizer further has an outer support body for receiving the outer surface of inner sleeve. The protruding members may be resilient protrusions, hard protrusions and a combination thereof. A method for drilling wellbore using one or more types of centralizers is also provided.

Claim (Index 1):
A centralizer for installing about a tubular, the centralizer comprising:\n a resilient inner sleeve arranged circumferentially about the tubular, the inner sleeve having opposing axial ends and a central bore adapted for slidably receiving the tubular therein; a tubular outer support body arranged circumferentially about the inner sleeve, the outer support body forming opposing axial ends, a body central bore for receiving the inner sleeve therein and one or more protrusions extending radially outwardly therefrom for engaging the wall of a wellbore, and for spacing the tubular from the wellbore; and a pair of annular end collars configured to secure to the tubular at opposing axial ends of the support body for preventing axial movement of the support body therebetween, each of the end collars having\n an annular overlap portion having a first diameter section for overlapping a portion of the respective axial ends of the at least two longitudinal discontinuous joints in the support body and the inner sleeve respectively, the annular overlap portion preventing outward radial movement of the two or more support body segments from about the tubular; and \n a clamping bore portion having a second diameter section for engaging the tubular, the second diameter section being smaller than the first diameter section and corresponding to a diameter of the tubular, \n wherein, when the pair of end collars are installed to the tubular, the axial end of the support body and the inner sleeve are received within the respective first diameter sections and the second diameter sections form stop shoulders therebetween.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 97.0
- Lexical Diversity: 1.89286
- Patent Class: 175.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15150359', '14647264', '12912615', '14741235', '12912610']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6925146067374556
- 35 USC 102 Novelty (BERT): 0.6399081150717574
- Combined Prediction Score: 0.6872539575708858
- Mean Citation Score: 416.389486
- Max Citation Score: 650.3712
- Similarity Product: 594.7136788204192

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

Dataset: test