PATENT CLAIM ANALYSIS

Application Number: 15953043
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["175", "027000"]

Abstract:
A method and system for automatically controlling drilling weight-on-bit for using a drill-string to drill along a wellbore is described.

Claim (Index 11):
The method of  claim 10 , wherein in step c) the friction coefficient-depth distribution is obtained by the following steps:\n c-2A) measuring and recording off-bottom tension at the top of the drill-string after adding a new drill-string component while also storing drill-string parameters, wherein the drill-string parameters including wellbore geometry, drill-string length, and drill-string tension at the time of recording; c-2B) selecting a friction coefficient at each depth that minimizes an objective function J({right arrow over (\u03bc)}), wherein the objective function J({right arrow over (\u03bc)}) is the total sum of the norm of the differences between the measured surface tension and the predicted off-bottom surface tension under the corresponding drill-string parameters according to the following equation:\n J ({right arrow over (\u03bc)})=\u03a3 i n |d i \u2212F i ({right arrow over (\u03bc)})| m \u2003\u2003(4) \n wherein n is the number of historical surface tension data stored by the method, d i  is the ith measured off-bottom surface tension, F i ({right arrow over (\u03bc)}) is the model predicted surface tension when the drill bit is off bottom for a friction coefficient profile {right arrow over (\u03bc)}; m is a positive number, and \u2225 denotes absolute value; wherein F i ({right arrow over (\u03bc)}) equals F T k  in step c-1A); c-2C) storing all or part of the selected friction coefficient profile from step 3b-2) to the current model; and c-2D) deleting the oldest stored off-bottom tension and the drill-string parameters when the number of the stored off-bottom tension and the drill-string parameters exceeds a predetermined value.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 91.0
- Lexical Diversity: 1.10526
- Patent Class: 175.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14375405', '14043564', '11357332', '13386859', '13386862']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.746266580791427
- 35 USC 102 Novelty (BERT): 0.5224164854156236
- Combined Prediction Score: 0.7238815712538467
- Mean Citation Score: 290.14812199999994
- Max Citation Score: 378.838
- Similarity Product: 273.43909243333337

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

Dataset: test