PATENT CLAIM ANALYSIS

Application Number: 16045249
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-06
Patent Classification: ["166", "379000"]

Abstract:
The present invention relates to the field of drilling, and provides an anti-settling apparatus and a method and apparatus for checking the same, and an apparatus for preventing settlement of a well. The anti-settling apparatus of the present invention is installed in the wellhead region of the well during drilling to prevent the well from settlement. The anti-settling apparatus generally includes: an anti-settling base having an opening corresponding to the wellhead formed at the center thereof, the anti-settling base being disposed in the wellhead region during drilling; and an interlocking member  5  disposed at the opening to connect and fix a casing provided in the well with the anti-settling base. The apparatus for preventing settlement of a well comprises the anti-settling apparatus and checking method for the anti-settling apparatus.

Claim (Index 7):
The checking method according to  claim 5 , wherein the permafrost parameters further comprise porosity of the permafrost in the thawing region, wherein the step of determining the amount of settlement of the well based on the size of the anti-settling apparatus comprises:\n determining a volume compression coefficient of the permafrost in the thawing region based on the porosity; and determining the actual amount of settlement corresponding to the size according to the following formula:\n s=a 0 h+m v h\u0394p  \n wherein s indicates the amount of settlement, h indicates thickness of the permafrost, a 0  indicates thaw-settlement coefficient of thawed permafrost, m v  indicates the volume compression coefficient of the permafrost, and \u0394p indicates pressure of the anti-settling apparatus on the permafrost at the wellhead,\n and the step of adjusting the size of the anti-settling apparatus based on the amount of settlement and the settlement amount threshold comprises: \n increasing the size by a predetermined value to re-determine the size of the anti-settling apparatus if actual amount of settlement exceeds the settlement amount threshold.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 95.0
- Lexical Diversity: 2.50909
- Patent Class: 166.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15311761', '13709790', '13914222', '14029271', '10141720']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7853459859811778
- 35 USC 102 Novelty (BERT): 0.478579872918273
- Combined Prediction Score: 0.7546693746748874
- Mean Citation Score: 148.95111599999996
- Max Citation Score: 154.27351000000004
- Similarity Product: 96.90528479434973

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