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 9):
A stress-free clamp receiving centralizer system for wellbore tubulars comprising:\n a. a wellbore tubular; b. a clamp receiving centralizer portion comprising a clamp receiving inner surface and a clamp receiving outer surface, with a longitudinal axis, a first end and a second end, the clamp receiving centralizer portion comprising:\n i. at least one extension; \n ii. a vane portion comprising a plurality of hollow vanes or a solid vane portion comprising a plurality of solid vanes, the vanes extending from the clamp receiving outer surface, the vane portion or the solid vane portion integrally connected to the at least one extension; and \n iii. a swellable encapsulation and shape shifting material or a non-swelling polymeric material with elastic properties, the swellable encapsulation and shape shifting material or the non-swelling polymeric material positioned in an annulus between the wellbore tubular and the clamp receiving inner surface while simultaneously swelling into the plurality of hollow vanes via a plurality of thru-holes, 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 or degrading after swelling; and \n c. a first clamp secured simultaneously to the first end and to the swellable encapsulation and shape shifting material or the non-swelling polymeric material, wherein the first clamp squeezes the swellable encapsulation and shape shifting material or the non-swelling polymeric material toward the vane portion or the solid vane portion longitudinally; and wherein the stress-free clamp receiving centralizer system is configured to simultaneously (i) prevent axial movement of the clamp receiving centralizer portion about the wellbore tubular, (ii) prevent rotational movement of the clamp receiving centralizer portion about the wellbore tubular, (iii) distribute load evenly around the clamp receiving 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): 0.7679898596413494
- 35 USC 102 Novelty (BERT): 0.5356301112187388
- Combined Prediction Score: 0.7447538847990883
- Mean Citation Score: 219.08787
- Max Citation Score: 403.4438
- Similarity Product: 348.76919992289544

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