Skype: eds-ltd

1 Abdullah Alisha Str., Bugulma
423236, Tatarstan Russia

Opening hours: Mon-Fri 8:00-16:00 (GMT+3)
Lunch break: 12:00-13:30 (GMT+3)

Leak/illegal tapping detection system

Theft of oil, refined products, and gas through Illegal tapping is one of the most acute problems for pipeline operating companies. Besides that it causes enormous loss of revenues, it can cause damage to environment if oil is pilled or loss of lives due to explosions.

To-date, there are quite a few pipeline protection technologies utilizing different approaches and methods, including:

  • analysis of vibroacoustic signals,
  • method of pipe flow comparison,
  • flow balance leak detection systems,
  • method of pipeline pressure decrease, etc


In case of noncontinuous operation of pipelines and, also, from the economical standpoint, intermittent monitoring of pipelines, using, for example, loss current measuring equipment is more attractive. However, this method is impractical if non-conducting materials are used for illegal tapping.

We offer a technology to detect illegal tapping points, no matter what materials were used for interference. The technology is based on the patented method of evaluation of magnetic induction module along the pipeline route, or magnetometer survey. The system detects changes of pipe’s magnetic field in the points of any defects in the pipe body or welds (corrosion spots, corrosion pits, weld defects, cracking, indentations, burring). Based on the extent of magnetic perturbations, the types and the severity of defects can be determined with certain degree of accuracy.

Characteristics of identified defects:

  • minimum length: 2 mm (cracking, weld defects, corrosion spots and pits),
  • penetration depth of defects: not less than 10% of pipe wall thickness

Similarly, an illegal tapping point causes magnetic field change, as the pipe body integrity has been damaged by tapping events and this can be detected by magnetometer survey.

The pipeline operating company, thus, gets information about illegal tapping events and exact location of pipeline defects.

With this information at hand, pipeline operators can significantly save on pipeline maintenance expenses, mitigate risks, enhance the operation safety level, and keep records about pipeline “ageing”. Analysis of pipeline performance history helps the operator to assess the rate of defect growth and to schedule the routine maintenance.