Drilling Fluid Particle Size Control via Real-Time Analysis

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Solution Overview

Problem

Current drilling practices lack real-time particle size analysis, leading to inefficient drilling operations, increased non-productive time, and environmental hazards due to improper particle size distribution in drilling fluids, which affects well control and formation damage.

Innovation Solution

Implementing a method for real-time particle size analysis using existing measurement equipment to create a proper particle size distribution curve within drilling fluid management systems, optimizing the use of solids control equipment to adjust and maintain optimal particle sizes, thereby improving drilling efficiency and reducing contamination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If real-time particle size analysis is implemented, then drilling efficiency is improved, but device complexity increases

Engineering Contradiction:
Improvedrilling efficiencyVSAvoidmeasurement system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system uses existing measurement equipment already present in the drilling fluid management system to perform particle size analysis, rather than introducing entirely new measurement devices. This allows the system to serve itself by utilizing available infrastructure for dual purposes (original function plus particle size measurement), thereby improving drilling efficiency through real-time data while minimizing additional device complexity

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The measurement equipment is used for multiple functions: its original purpose plus particle size analysis. By making the equipment multi-functional, the system avoids adding dedicated new devices for particle size measurement, thus achieving real-time analysis capability while keeping the overall device complexity manageable through shared resource utilization

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Object-affected harmful factors

If particle size distribution is optimized, then environmental impact is reduced, but loss of time for analysis and adjustment increases

Engineering Contradiction:
Improveenvironmental impactVSAvoidanalysis and adjustment time
Core Design Contradiction:
Object-affected harmful factorsVSLoss of time

Solution Approach 1:

The system implements real-time particle size analysis with continuous monitoring and immediate feedback to the drilling fluid management system. This allows for real-time detection of particle size distribution deviations and immediate adjustment of cleaning operations, thereby reducing environmental impact from improper particle size distribution while minimizing time loss through automated real-time control rather than batch analysis

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The particle size analysis and adjustment process operates continuously rather than in discrete batches. The real-time monitoring ensures continuous optimization of particle size distribution, preventing environmental harm before it occurs and maintaining optimal conditions throughout drilling operations, thus reducing overall environmental impact without significant time penalty due to the continuous nature of the process

Inventive Principle:
Principle #20Continuity of useful action

3Loss of substance

If particle size distribution is optimized, then drilling costs are reduced, but measurement precision requirements increase

Engineering Contradiction:
Improvedrilling costsVSAvoidparticle size measurement precision
Core Design Contradiction:
Loss of substanceVSMeasurement precision

Solution Approach 1:

The system replaces traditional mechanical sieve-based particle size analysis with advanced measurement techniques using existing equipment capable of optical or electrical measurement of particle size. This substitution provides higher measurement precision while utilizing already-deployed infrastructure, thereby enabling cost-effective optimization of particle size distribution without requiring expensive new specialized equipment

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system measures and adjusts multiple particle size parameters (distribution curves, mean particle size, size ranges) simultaneously using the existing measurement equipment. By changing and monitoring multiple parameters at once, the system achieves comprehensive particle size optimization that reduces drilling costs through improved efficiency and reduced non-productive time, while the advanced measurement capability provides the necessary precision for all parameters

Inventive Principle:
Principle #35Parameter changes

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

This approach enhances drilling efficiency by 20%, reduces environmental impact, decreases drilling days, and lowers costs by optimizing particle size distribution, leading to safer and more efficient well operations.

Implementation Method 1

a particle size analyzer that measures particle size of a plurality of drilling mud samples

Methodology Applied
Scientific EffectLight scattering: Scattering

Implementation Method 2

a particle size analyzer that measures particle size of a plurality of drilling mud samples

Methodology Applied
Scientific EffectElectrical impedance: Electrical Resistance

Implementation Method 3

after cleaning with a shaker

Methodology Applied
Scientific EffectVibration: Vibration

Implementation Method 4

after cleaning with a centrifuge

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentEP3129585B1Particle size control in drilling fluid
Publication Date: 2021.12.08 PARTICLE SIZE ENG
  • EP3129585B1 patent drawingFigure 1
  • EP3129585B1 patent drawingFigure 2
  • EP3129585B1 patent drawingFigure 3

AI summary

A method for optimizing drilling fluids by creating a proper particle size analysis and distribution curve of particle sizing within drilling fluid. The particle size distribution curve is maintained with a maximum particle sizing of 6 microns so as to not allow for coarser drilled solids to degrade beyond the point of mechanical separation to prevent a build-up of low gravity solids that can no longer be removed from the drilling fluid during the drilling operation due to their size. An optimal drilling system requires that drilling fluids be modified through the following process to attain the appropriate particle sizing distribution to: make the most efficient use of the drilling operation, reduce the amount to drilling fluids utilized, and reduce formation damage. The method generates corrective actions to modify the drilling fluids or adjust solids control equipment parameters, to obtain a unique particle size distribution throughout the drilling process.