CALIPER
The caliper tool can detect the depression, ovality deformation, wall thickness change of the pipeline, and various pipeline accessories that cause the inner diameter of the pipeline to change
Introduction
The caliper tool can detect the depression, ovality deformation, wall thickness change of the pipeline, and various pipeline accessories that cause the inner diameter of the pipeline to change
Technology
Technical Advantage:
High passing ability:
The conventional caliper tool can pass 15% deformation and the foam caliper tool can pass 40% deformation.
Calculation of bending strain:
Carrying IMU can perform bending strain calculation
Flexible customization：
The tool can be specially customized according to the actual conditions of the pipeline, which can realize the detection in the pipeline under special working conditions such as large deformation and variable diameter.
Calculation of bending strain:
Carrying IMU can perform bending strain calculation.
Service Advantage
Specs.
Technical Parameter
| Tool sizes available | 6”-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 | ≤5m/s |
| Minimum pipeline bend radius | 1.5D |
| Maximum operating time | ≥200h |
| Maximum inspection length | ≥350km |
Performance Specifications
| Detection threshold
at POD=90% |
Accuracy at
Certainty = 90% |
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| OD≤406mm | 406mm<OD<1016mm | OD≥1016mm | ||||
| Wall thickness | 1.5mm | ±1mm | ||||
| Dent | 1%OD | ±2mm | ±3.5mm | ±5mm | ||
| Ovality | 1% | ±1% | ||||
| Note: OD is the outer diameter of the pipe. Ovality (%) =
(maximum diameter – minimum diameter) / nominal diameter |
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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 | |
IMU accuracy
| Horizontal positioning accuracy | ±1m |
| Elevation positioning accuracy | ±2m |
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.
