VIGOR Electro-Magnetic Interference Tool (EMIT) is an electromagnetic defect scope used to measure casing and tubing corrosion with and outer diameter of 43mm, the tool is mainly run thru-tubing with the unique ability to simultaneously inspect tubing and 2-3 layers of casing behind it. The integrity of the casing string can be evaluated without the requirement for costly workover rig and the time consuming removal of the tubing string.
The Vigor`s new EMIT can evaluate quantitative thickness measurement and damage detection of up to four concentric pipes. The advanced instrument combines a high-power transmitter, improved signal-to-noise ratio (SNR) electronics, and a completely high-profile acquisition module and algorithm. This flexible method can be used for a wide range of evaluation applications in different test environments.
Adopted a 13-core quick connector, which can be easily connected to Gamma, CCL, MIT, CBL, downhole eagle eye, and other tools quickly.
Available to inspect the inner and outer wall of the casing flaw.
Available to identify the damage type, such as horizontal crack, vertical crack, corrosion etc.
Available to identify 3-4 layer of pipes.
Memory logging, easy for operation.
Compatible with other Vigor’s cased hole tool to finish well integrity evaluation.
This EMIT has a set of short ("C") and a set of long ("A"), and adopts the principle of transient electromagnetic method. The transmitting probe transmits high-energy electromagnetic pulses into the surrounding pipeline, Then the pipeline records the compound attenuation of eddy current signals based on the physical principle of pulse eddy current (PEC), and these signals are finally used to evaluate the pipeline condition.
The long sensor records up to 127 channels, and its decay time ranges from 1ms to 280ms. This captures the fast attenuation signal of the far-field signal from the alloy tube to the large casing. The short-circuit sensor has a smaller measuring aperture and a higher vertical resolution to scan the inner tube.
General Specification |
|
Tool Diameter |
43mm (1-11/16in) |
Temperature Rating |
-20℃-175℃ (-20℉-347℉) |
Pressure Rating |
100Mpa (14500PSI) |
Length |
1750mm (68.9in) |
Weight |
7Kg |
Measurement Range |
60-473mm |
Pipe Size Range |
60-473mm |
Logging Curves |
127 |
Max logging Speed |
400m/h(22ft/min) |
First Pipe |
|
Pipe Wall Thickness |
20mm(0.78in) |
Thickness Accuracy |
0.190mm(0.0075in) |
Minimum Longitudinal Crack of Casing |
0.08mm*Circumference |
Second Pipe |
|
Pipe Wall Thickness |
18mm(0.7in) |
Thickness Accuracy |
0.254mm (0.01in) |
Minimum Longitudinal Crack of Casing |
0.18mm*Circumference |
Third Pipe |
|
Pipe Wall Thickness |
16mm(0.63in) |
Thickness Accuracy |
1.52mm (0.06in) |
Minimum Longitudinal Crack of Casing |
0.27mm*Circumference |
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