Logging Tools

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.

If you are interested in the Electro-Magnetic Interference Tool (EMIT) or other tools for oil and gas, please do not hesitate to contact us.

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Product Detail

Product Tags

Detection Solution for Casing and Tubing

◆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.

◆Electric-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 work over rig and the time consuming removal of the tubing string.

Features

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.

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Technical Parameter

General Specification
Tool Diameter	43mm (1-11/16in)
Temperature Rating	-20℃-175℃ (-20℉-347℉)
Pressure Rating	100Mpa (14,500psi)
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

About VIGOR

China Vigor Drilling Oil Tools and Equipment Co., Ltd.

Vigor is committed to researching, developing, manufacturing, and selling high-tech downhole tools and equipment. Our focus is on utilizing advanced technologies to help our customers reduce the costs of oil and gas exploration, production, and completion while keeping up with the development of the world's energy industry.

VIGOR'S MISSION

We continue to promote the development of the world's energy industry with high quality and innovative models.

VIGOR'S VISION

Become a century-old enterprise in the energy industry, serving 1000 leading enterprises in the energy industry worldwide.

VIGOR'S VALUES

Team spirit, innovation and change, focus, integrity, and live our dream true!

Company History

Vigor is always your reliable partner in the oil and gas industry.

Vigor expanded our manufacturing facilities in different locations of China which help us to serve the customers with swift delivery, diversity and efficiency of production. All our manufacturing facilities meet and exceed APl and international quality standards.

With a solid background, experiences, full support from the engineering team, and high efficiency in production, Vigor has established stable and long terms cooperation with well-known international companies from the US, Canada, Colombia, Argentina, Brazil, Mexico, Italy, Norway, UAE, Oman, Egypt, Saudi Arabia and Nigeria, Etc.

Vigor R&D Certificates

Vigor team has consistently prioritized investment in product research and development. In 2017, several new products developed by Vigor were successfully tested and widely promoted, with advanced technological offerings being adopted in bulk by clients on-site. By 2019, our modular disposable guns and site selection perforating series had been successfully deployed in client wells. In 2022, Vigor invested in a high-tech tool manufacturing plant to further enhance our production capabilities.

Our commitment to the R&D, production, and testing of new products remains unwavering. If you are interested in industry-leading products or technologies, do not hesitate to contact our professional technical team.