Resonance Sensor Drilling Fluid Viscosity Prediction
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Solution Overview
Problem
Current technologies fail to effectively monitor and predict drilling fluid viscosity in real-time at high temperature and pressure conditions, which is crucial for ensuring safety and efficiency in well operations.
Innovation Solution
A system utilizing a resonate sensor to measure fluid density and viscosity, coupled with a CPU platform for real-time processing, employs the Casson model to generate a flow curve based on single-point viscosity measurements, allowing for immediate adjustments to operational parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional viscosity monitoring methods are used, then measurement simplicity is maintained, but real-time monitoring capability at high temperature and pressure is lost
Solution Approach 1:
The patent replaces traditional mechanical viscosity measurement systems with acoustic resonance-based measurement. The resonator sensor uses acoustic waves to measure viscosity, eliminating the need for complex mechanical components that cannot withstand high temperature and pressure conditions, thereby enabling real-time monitoring while maintaining measurement accuracy.
Solution Approach 2:
The patent introduces an intermediary mathematical model (Casson model) that correlates single-point viscosity measurements to flow curves. This intermediary approach allows the system to derive comprehensive viscosity information from simplified single-point measurements, reducing device complexity while maintaining measurement precision through computational modeling.
2Loss of information
If comprehensive flow curve data is collected, then complete viscosity information is obtained, but real-time measurement speed is reduced
Solution Approach 1:
The patent applies preliminary mathematical modeling using the Casson model to predict the complete flow curve from a single viscosity measurement point. This preliminary action allows the system to obtain comprehensive viscosity information across multiple shear rates without actually performing multiple measurements, thereby eliminating time loss while maintaining information completeness.
Solution Approach 2:
The patent creates a mathematical copy (flow curve) of the complete viscosity behavior based on a single measurement point. Instead of measuring all viscosity points directly, the system generates a computational copy of the flow curve using the Casson model, which reproduces the complete viscosity information without requiring comprehensive physical measurements.
3Reliability
If real-time viscosity monitoring is implemented, then operational safety is improved, but system cost increases
Solution Approach 1:
The patent replaces complex mechanical monitoring systems with acoustic resonance sensors and mathematical modeling. This substitution maintains reliability for real-time viscosity monitoring and operational safety while reducing device complexity by eliminating mechanical components that require maintenance and cannot operate at high temperature and pressure.
Solution Approach 2:
The system uses the natural acoustic resonance properties of the fluid itself to obtain viscosity measurements. The resonator sensor exploits the fluid's own physical properties (density and viscosity) to generate measurable resonance frequencies, allowing the system to monitor viscosity without external intervention or complex measurement apparatus, thereby improving reliability while keeping the system simple.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables robust, real-time monitoring and prediction of drilling fluid viscosity, enhancing operational safety and efficiency by allowing for timely adjustments to drilling parameters.
Implementation Method 1
A method for predicting drilling fluid viscosity includes receiving a single point viscosity measurement of drilling fluid from at least one resonator sensor
Data Source
AI summary
A system and method for acquiring and processing single point viscosity measurements in well operations to predict flow curves, e.g., for mud flow, for monitoring and predicting viscosity of fluid flow in order to identify abnormal conditions for taking remedial action.