PATENT CLAIM ANALYSIS

Application Number: 15903272
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["700", "275000"]

Abstract:
A system and method for optimized control of an assembly for drilling a borehole comprises a self-tuning, multivariable controller and an optimization engine that manipulates the setpoints of the controller such that drilling performance may be continuously optimized. The method includes evaluation of a characteristic system time constant, using this constant to compute bit ROP, using computed ROP to compute process gains, which are used to tune the multivariable controller, automatically refining controller setpoints based on controller performance, and using an optimization engine to systematically adjust controller setpoints such that drilling parameters are optimized based on any of several performance indicators, or a weighted combination of performance indicators. The method further comprises using at least one performance indicators which may be computed using estimated bit ROP: bit wear parameter; gradient of cost per foot; gradient of bit ROP versus WOB; simplified mechanical specific energy; and hydraulic specific energy.

Claim (Index 14):
A method for optimizing drilling performance of a drilling assembly for drilling a borehole in an earth formation using the system of  claim 5 , said method comprising the steps of:\n selecting a setpoint value of at least one variable drilling parameter; operating the drilling assembly to drill the borehole, wherein said at least one variable drilling parameter is set at said setpoint value; determining the value of at least one performance indicator; varying the variable drilling parameter from the setpoint value within a predetermined range; determining a second value of said at least one performance indicator; varying the setpoint value of said at least one variable drilling parameter to a second setpoint value based on the change in value of the at least one performance indicator.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 88.0
- Lexical Diversity: 1.9878
- Patent Class: 700.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14432675', '11567488', '12836895', '15829347', '13283518']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4434035746223823
- 35 USC 102 Novelty (BERT): 0.6218358924241641
- Combined Prediction Score: 0.4612468064025605
- Mean Citation Score: 370.27792200000016
- Max Citation Score: 654.0233
- Similarity Product: 525.3317898710967

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