3.measure bend radius and angle of the pipeline

Verify that magnetic flux leakage testing and/or ultrasonic testing are possible。

Calipper geometric vehcle is composed of deformation detection arm, deformation detection sensor odometer wheel, electronic bay, cup, anti-collision head, transmitter and skeleton, etc.

During the deformation detection, the specific mileage of the geometric deformation of the pipe is recorded by the odometer wheel, and the direction of the deformation is obtained by the gyro built-in the inspection vehicle.

Normally, the contact arm will be evenly distributed on the inner wall of the pipeline. When the pipe inner-diameter changes, some contact arms of channels will be compressed or stretched, compression or tension will drive 4 pole magnets to rotate within the detection arm, which will convert the compressed or stretched signal to the corresponding magnetic field signal, and then transfer the magnetic field signal into voltage signal by hall sensor, which will be recorded in the electronic board. After the analysis of the abnormal data detected, coupled with debugging data before lauching, the deformation of the pipeline be confimed.

preliminary report of geometric inspection

On-site provided, including：

Dent and ID reduction ≥5%OD

Ovalities ≥5%OD
bend
the main pipe fitting
cathodic protection point
Minimum inner diameter of bend section and straight section
final report of geometric inspection
description of inspection process
data evaluation method
severe feature list—list the feature that exceed the predict threshold
pipeline manual—list all the features detected and their position information, including girth welds, bends, pipe fittings, various geometric deformations, cathodic protection points  
calibration curve
velocity plot
PipeImage software report

MagneScan 

Magnetic flux leakage inspection vehicle covers 3-56in full-size pipeline
Defects that can be inspected using Magnetic flux leakage inspection vehicle(corrosion, metal object, weld defect, dent)
TranScan(circumference- Magnetic flux leakage- TranScan)
1、Applicable primarily to axial metal loss defect
2、Secondly can also detect seam weld crack
 characteristic：
it can be used in extremely severe operating conditions
it is widely used in various types of pipelines, such as gas flow, liquid flow, land and offshore pipilne.
covering 3-56”pipeline diameter
detect low and subcritical metal loss
More than 20 years of inspection history, the global detection of about 150000km pipelines.
 have the most comprehensive and extensive defect measurement model.
PipeImage software
applied technology:
Magnetic flux leakage technique(axial magnetic field)
set up technical standards for metal loss detection technology
80% market share
advantage:

Accurate monitoring of corrosion

Key input to the pipeline integrity program

Apply flexibility (speed, pressure, mapping)
The optimal choice of metal loss detection
Inspection capability of Magnetic flux leakage inspection vehicle
ID/OD
metal loss, including uniform corrosion, pit, gouge, mechanical damage, metal loss near weld, metal loss associated with dent, Metal loss under sleeve, metal loss under patch, metal loss within the field wrap boundaries of girth weld etc.
Dents: including pure dent, dent associated with weld, dent associated with metal loss etc.

MFG
wall thickness change
girth weld abnormal
casing eccentric
patch
close or touch metal object/ferro magnetic material
girth weld, spiral weld, seam weld
valve, tee, offtake etc pipeline equipment and fitting
Positioning of the above features
Magnetic flux leakage inspection preliminary report
inspection data quality
Total number and distribution of metal loss feature
peak depth of metal loss feature＞80%WT
1.3 metal loss feature
Other pipeline abnormity that required immediate attention
Magnetic flux leakage inspection final report
defect summary
 inspection sheet(15 most serious feature)
pressure sentenced plot
 defect statistic law
list of severe metal loss feature
Classification feature list(girth weld abnormity, external metal, dent, casing eccentric, NWT
pipeline list