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 20):
A method of optimizing drilling performance of a drilling assembly for drilling a borehole in an earth formation using the system of  claim 4 , 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 the at least one variable drilling parameter is set at the setpoint value; determining the value of mechanical power input to the bit; determining the value of hydraulic power input to the bit; varying the setpoint value of said at least one variable drilling parameter such that mechanical power and hydraulic power are related as per the equation:\n MP max =K 8  HP \n wherein MP max  is defined as maximum mechanical power input, HP is defined as hydraulic power input, and K 8  is a user-controlled constant.

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): 0.4365126134380305
- 35 USC 102 Novelty (BERT): 0.6394696381639634
- Combined Prediction Score: 0.4568083159106238
- Mean Citation Score: 370.27792200000016
- Max Citation Score: 654.0233
- Similarity Product: 581.8161901836871

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