PATENT CLAIM ANALYSIS

Application Number: 15864716
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-11
Patent Classification: ["166", "192000"]

Abstract:
The present disclosure relates to a cementing plug comprising a first plug body (bottom plug), a second plug body (top plug), and a plurality of cleaning portions. The first plug body comprises: a first body provided therein with a chamber opening towards a lower end thereof, and an upper end of the first body being provided with a pressure portion; and an anti-rotation portion provided on an inner wall of the first body, and capable of being connected to slurry entering the chamber to limit a rotation of the first plug body. The second plug body comprises a second body. The plurality of cleaning portions is provided on outer sidewalls of the first body and the second body along a length direction thereof, for scraping off residuals (mud cake) on an inner wall of a casing.

Claim (Index 1):
A cementing plug, comprising a first plug body, a second plug body, and at least two cleaning portions;\n wherein the first plug body comprises:\n a first body provided therein with a chamber opening towards a lower end thereof, an upper end of the first body being provided with a pressure portion, which fractures when subjected to a pressure larger than a predetermined value so that the chamber is in communication with the upper end of the first body; and \n an anti-rotation portion provided on an inner wall of the first body, and capable of being connected to slurry entering the chamber so as to limit rotation of the first plug body; \n wherein the second plug body comprises a second body having a lower end connectable to the upper end of the first body, so as to block an upper end of the chamber; and wherein the at least two cleaning portions are provided on outer sidewalls of the first body and the second body, respectively, for scraping off residuals on an inner wall of a casing, wherein the cleaning portion comprises:\n at least one first protuberance extending inclinedly upwards relative to a horizontal plane; \n at least one second protuberance extending inclinedly downwards relative to the horizontal plane.

Metadata:
- Claim Count in Document: 22.0
- Percentile: 86.0
- Lexical Diversity: 2.39062
- Patent Class: 166.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14083021', '10714118', '15357732', '11611407', '11611431']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.779310422435838
- 35 USC 102 Novelty (BERT): 0.4616776758054924
- Combined Prediction Score: 0.7475471477728035
- Mean Citation Score: 176.528764
- Max Citation Score: 184.06822
- Similarity Product: 141.6661384266079

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test