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Electro-Magnetic Interference Tool (EMIT)
Vigor's Electro-Magnetic Interference Tool (EMIT) uses the electrical and magnetic properties of casing and tubing under electromagnetic action to detect the technical condition of downhole casing according to the principle of electromagnetic induction, and can determine the thickness, cracks, deformation, dislocation， inner and outer wall corrosion of casing.
Compared with other current detection technologies, electromagnetic detection is a non-destructive, non-contact detection method, which is not affected by the liquid in the well, casing fouling, wax formation and downhole wall attachments, and the measurement accuracy is higher. At the same time, the electromagnetic detector can also detect defects in the outer string of the casing. The unique advantages of electromagnetic detection make it one of the most widely used casing damage detection technologies in the world.
Description
China Vigor Drilling Oil Tools And Equipment Co., Ltd. is one of the most professional manufacturers and suppliers of electro-magnetic interference tool (emit) in China, featured by competitive price and fast delivery. Welcome to buy high quality electro-magnetic interference tool (emit) in stock here from our factory.
◆Electro-Magnetic Detection Over Other Detection
Compared with other current detection technologies, electromagnetic detection is a non-destructive and non-contact detection method, which is not affected by the liquid in the well, casing fouling, wax formation and downhole wall attachments, and the measurement accuracy is higher. At the same time, the electromagnetic detector can also detect defects in the outer string of the casing.
◆Vigor Electro-Magnetic Interference Tool (EMIT) Principle
EMIT uses the electrical and magnetic properties of casing and tubing under electromagnetic action to detect the technical condition of the downhole casing according to the principle of electromagnetic induction and can determine the thickness, cracks, deformation, dislocation, inner and outer wall corrosion of casing.
◆Vigor New EMIT Evaluating Capabilities
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.
◆Electro-Magnetic Interference Tool (EMIT)
This 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.
Features
- Electro-Magnetic Interference Tool (EMIT) 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.
Why Choose Vigor?
Vigor Electro-Magnetic Interference Tool (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.
Techinical Parameters
|
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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