Can We Inspect It? Absolutely! TesTex Tackles First-Ever LFET Inspection of Braskem’s Kenova Water Ball
Comprehensive Low-Frequency Electromagnetic Inspection on Braskem’s Kenova Water Ball
In early October 2024, TesTex Inc. completed a critical Low Frequency Electromagnetic Technique (LFET) inspection with UT (Ultrasonic Testing) backup on the water storage tank, or “Water Ball,” at Braskem’s facility in Kenova, West Virginia. The inspection, conducted from September 30 through October 4, aimed to identify any wear, thinning, or potential structural issues to ensure ongoing safety and performance.
Inspection Scope and Techniques
Positioned 120 feet above ground, the Water Ball required specialized access for inspection. Our team used a JLG lift to reach up to five feet above the midpoint of the tank and scanned down to the base. This comprehensive scan enabled us to examine critical areas that could show signs of wear or structural degradation. The primary tool used was the Low Frequency Electromagnetic Technique (LFET), known for its sensitivity in detecting anomalies in large structures. In addition, we utilized Ultrasonic Testing (UT) as a backup method for confirmation of each indication.
Findings and Analysis
During the inspection, we detected 22 indications of wall thinning and located two areas with through-holes. The indications were distributed throughout the tank rather than clustered in a single location, indicating more generalized wear. Each indication was marked on the surface using paint, allowing for easy reference for future monitoring or repair. The inspection data, organized by eight compass directions (North, Northeast, East, Southeast, South, Southwest, West, and Northwest), provides precise measurements of each indication. For all readings of wall thickness below 0.200 inches, UT verification was conducted to confirm accuracy.
Looking Ahead
This inspection provides Braskem with a comprehensive picture of the Water Ball’s current state and highlights areas requiring maintenance. TesTex’s LFET and UT combination ensures high reliability in detecting structural issues, offering Braskem a data-driven foundation for proactive maintenance and asset protection.
Field Data
image of UT indications.
Image of one of the two through holes.
The water ball inspected.