PATENT CLAIM ANALYSIS

Application Number: 16103181
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2018-12
Patent Classification: ["166", "241600"]

Abstract:
A stress-free centralizer system for wellbore tubulars having a centralizer portion with hollow vanes or solid vanes. An injectable material can be configured to harden at ambient or elevated temperatures and installed into the hollow vanes while coating a portion of the inner surface of the centralizer portion. Alternatively, a swellable encapsulation and shape shifting material can be used instead of the injectable material. Additionally, primers and adhesives can be used with the centralizer portion. Both materials when hardened or swollen can be configured to withstand temperatures and pressures within a wellbore for twenty-four hours without melting or degrading. The centralizer portion can simultaneously prevent axial movement and rotational movement while installed on the wellbore tubular, distribute load evenly around the centralizer portion, and provide cathodic protection to the wellbore tubular without using a stop collar with screws.

Claim (Index 1):
A stress-free solid vane centralizer system for a wellbore tubular comprising:\n a. a solid vane centralizer portion comprising an inner surface and an outer surface with a longitudinal axis, the solid vane centralizer portion comprising:\n i. at least one extension; \n ii. a solid vane portion integrally connected to the at least one extension; the solid vane portion comprising a plurality of solid vanes extending from the outer surface; and \n iii. a swellable encapsulation and shape shifting material or an injectable material filling an annulus between the wellbore tubular and the solid vane centralizer portion, the swellable encapsulation and shape shifting material comprising at least one of: a polymer system and an epoxy system, the polymer system or the epoxy system configured to swell to a hardness of at least 50 shore A and withstand temperatures and pressures within a wellbore for at least twenty-four hours without melting after swelling, the injectable material configured to harden to a hardness of at least 50 shore A and withstand temperatures and pressures within the wellbore for at least twenty-four hours without melting or degrading after hardening; and \n b. the wellbore tubular disposed longitudinally within the solid vane centralizer portion engaging the swellable encapsulation and shape shifting material or the injectable material, the solid vane stress-free centralizer system configured to simultaneously (i) prevent axial movement of the solid vane centralizer portion about the wellbore tubular, (ii) prevent rotational movement of the solid vane centralizer portion while installed on the well bore tubular, (iii) distribute load evenly preventing stress riser around the solid vane centralizer portion, and (iv) provide cathodic protection to the wellbore tubular without using a stop collar fastened to the wellbore tubular.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 96.0
- Lexical Diversity: 1.85
- Patent Class: 166.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15160961', '15607430', '15326770', '13488122', '13488069']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7670379708569102
- 35 USC 102 Novelty (BERT): 0.5374582762230016
- Combined Prediction Score: 0.7440800013935194
- Mean Citation Score: 219.08787
- Max Citation Score: 403.4438
- Similarity Product: 379.0392151101709

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