Simulated Fracture Test Apparatus for Particle Plugging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Lost circulation events during wellbore drilling occur due to uncontrollable flow of drilling fluid into formations, leading to costly remediation and nonproductive time, as existing methods fail to effectively plug fractures and strengthen the wellbore.
Innovation Solution
A test apparatus is used to measure particle plugging of a simulated fracture by flowing a test fluid with particles through a simulated fracture, allowing for optical or ultrasonic inspection and adjustment of particle size and distribution to optimize fracture plugging, thereby reducing lost circulation and enhancing wellbore strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If materials are added to drilling fluid to plug fractures, then lost circulation is reduced, but the effectiveness of plugging is insufficient leading to continued circulation loss
Solution Approach 1:
The patent applies preliminary action by using the test apparatus to evaluate particle plugging performance before actual drilling operations. The system allows optimization of particle size, concentration, and distribution in advance, so that the most effective particle configuration is determined prior to field deployment, ensuring reliable fracture plugging from the start of drilling operations.
Solution Approach 2:
The patent employs parameter changes by systematically varying particle properties (size, shape, concentration, material composition) in the test apparatus to identify optimal parameters for fracture plugging. The system measures plugging effectiveness under different parameter combinations, allowing selection of the most effective particle configuration to maximize fracture sealing and minimize drilling fluid loss.
2Productivity
If particle plugging is optimized to reduce lost circulation, then drilling efficiency improves, but insufficient data exists on particle behavior in fractures
Solution Approach 1:
The patent implements feedback by using optical and ultrasonic sensors to continuously monitor particle plugging behavior in the test apparatus. The system provides real-time data on particle distribution, fracture sealing effectiveness, and fluid flow characteristics, allowing researchers to gather comprehensive information on particle-fracture interactions and optimize drilling fluid formulations based on empirical evidence.
Solution Approach 2:
The patent applies copying by creating a simulated fracture environment that replicates downhole conditions. The test apparatus includes a fracture model with controlled geometry and properties that mimics actual wellbore fractures, allowing particle plugging behavior to be studied in a controlled setting that accurately represents field conditions without the risks and costs of actual drilling operations.
3Measurement precision
If a test apparatus is developed to measure particle plugging, then particle optimization is enabled, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the test apparatus into distinct functional modules: a fracture simulation component, a particle injection system, optical sensing subsystem, ultrasonic sensing subsystem, and data processing unit. This modular segmentation allows each component to be optimized independently and facilitates easier maintenance and calibration while maintaining high measurement precision for particle plugging evaluation.
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
The test apparatus provides insights for designing drilling fluids that effectively plug fractures, reducing lost circulation and improving wellbore strength by determining the optimal particle size and distribution for the drilling fluid, leading to more efficient and cost-effective drilling operations.
Implementation Method 1
optical or ultrasonic inspection
Implementation Method 2
optical or ultrasonic inspection
Data Source
AI summary
A test apparatus can measuring particle plugging of a simulated fracture. The test apparatus can include a first test component having a first surface and a second test component having a second surface. The second test component can be positionable relative to the first test component to create a simulated fracture between the first surface and the second surface. The test apparatus can include a visualization area of at least one of the first test component or the second test component can be positioned between a fluid inlet and a fluid outlet along at least a portion of the simulated fracture.