The Magnetic Thickness Tool (MTT) uses 12 miniature magnetic sensors to investigate variations of pipe metal thickness. The sensors are mounted on collapsible bow springs, allowing the tool to pass through tubing and log pipes up to 7 in. Combining the data with data from the MIT, metal thickness and OD are derived.
Service Name | MTT |
Length | 2.18 m / 85.8 in |
Weight | 13.6 kg / 30 lbs |
OD | 43 mm / 1.688 in |
Minimum defect | 18 mm / 0.750 in |
Coverage | 100 % up to 5 in ID casing 80 % up to 7 in ID casing |
Maximum logging ID | 7 in |
Temperature rating | 150 °C / 302 °F |
Recommended logging speed | 3 m/min / 10 ft/min |
Maximum pressure | 1030 bar / 15 000 psi |
Maximum temperature | 150 °C / 302 °F |