MFL+TFI
The MFL+TFI tool is composed of an axial excitation detection section and a circumferential excitation detection section. Circumferential excitation detection magnetic field is distributed along the circumferential direction of the pipe wall, which can detect axial defect signals, and has strong detection ability for axial grooves. Axial excitation detection data and circumferential excitation detection data complement each other to realize all around defect detection.
Our company produces and sells 10”-56” MFL+TFI detectors, and above 30’’ series MFL+TFI detectors with self-balancing speed control valves.
Introduction
The MFL+TFI tool is composed of an axial excitation detection section and a circumferential excitation detection section. Circumferential excitation detection magnetic field is distributed along the circumferential direction of the pipe wall, which can detect axial defect signals, and has strong detection ability for axial grooves. Axial excitation detection data and circumferential excitation detection data complement each other to realize all around defect detection.
Our company produces and sells 10”-56” MFL+TFI detectors, and above 30’’ series MFL+TFI detectors with self-balancing speed control valves.
Technology
Improved detection ability of axial groove defects:
The circumferential excitation detection structure improves the ability of axial groove detection, and can detect axial groove defects with 0<W<A and L≥A (L is the length of the defect, W is the width of the defect, and A is the pipe wall thickness).
High-definition：
High density sensor layout: circumferential sensor spacing <3mm.
High-speed sampling: axial sampling spacing <2mm (when speed <4 m/s).
Mass data storage:
Single runtime >200 hours.
Self-balancing speed control system：
The speed control system is based on the principle of fluid mechanics, which automatically adjusts the discharge flow rate and keeps the detector speed less
than 4m/s.
Soft steel brush:
The soft fine steel brush will not damage the internal coating of the pipeline.
Service Advantage
Integrity Data Management:
Provide the original test data and all the test data to achieve lifelong integrity data management.
Exclusive Customized Detector:
According to the actual working conditions of the pipeline, the detector is customized, which can realize the detection of large deformation, thick-walled pipes, high sulfur content, large flow and other special working conditions in the pipeline.
Lifetime upgrade and maintenance of analysis software:
Free upgrade and maintenance of customer software, free software consultation.
Exclusive Service Engineer:
Provide professional answers to engineering problems existing on site, and can go to the site at any time to assist customers to solve engineering problems.
Specs.
Technical Parameter
| Tool sizes available | 10”-56” |
| Pipeline product | Crude oil, refined oil, natural gas, sea water, air, etc. |
| Product temperature range | 0 ℃-75 ℃ |
| Maximum operating pressure | 12MPa |
| Operating speed range | ≤4m/s |
| Minimum pipeline bend radius | 1.5D |
| Wall thickness range | 4-32mm |
| Maximum operating time | ≥200h |
| Maximum inspection length | ≥350km |
Performance Specifications
| Certainty | General
metal-loss |
Pitting | Axial
grooving |
Circum.
grooving |
Axial
slotting |
Circum.
slotting |
|
| Reference value | 90% | 4Ax4A
|
2Ax2A | 4Ax2A | 2Ax4A
|
0.5Ax2A
|
2Ax0.5A
|
| Depth at POD=90% | 90% | 0.05t | 0.05t | 0.05t | 0.05t | 0.08t | 0.08t |
| Depth sizing accuracy
at 90% certainty |
90% | ±0.1t | ±0.1t | ±0.1t | ±0.1t | ±0.1t | ±0.1t |
| Width sizing accuracy
at 90% certainty |
90% | ±15mm | ±12mm | ±10mm | ±10mm | ±10mm | ±15mm |
| Length sizing accuracy
at 90% certainty |
90% | ±8mm | ±8mm | ±5mm | ±5mm | ±10mm | ±8mm |
Positioning accuracy
| Axial positioning accuracy at Certainty = 90%. | The distance error between the feature and the reference girth weld is less than 0.1m, and the distance is the nearest reference point ±l*1‰ |
| Circumferential
positioning Accuracy at Certainty = 90% |
±5° |
| P.S：l—Calibration distance | |
Gallery
Introduction of Pipeline Inspection
Our professional internal inspection services are available for a wide range of oil and gas pipelines with different pipe diameters, and can address both macro-defects and micro-stresses.
