[Coal Chemical Industry] Buried pipeline stray current detection equipment breaks the monopoly

Recently, Shengli Oilfield Technical Testing Center successfully developed and formed a new type of buried pipeline stray current detection equipment with independent intellectual property rights .

Stray current refers to the current flowing outside the specified circuit, usually due to the resistance coupling, capacitive coupling and electromagnetic induction coupling of high-voltage circuits or electrical facilities.

"The test results show that a pipeline with a wall thickness of 8 mm under 1 ampere current can be pierced in 4 months.

At present, Sinopec’s internal pipeline for oil product transportation is approximately 20,000 kilometers.

Prior to this, in the field of buried pipeline stray current detection technology, foreign equipment such as RD-SCM of Radiodetection in the United Kingdom has always occupied a monopoly position, and the purchase amount of a single set of equipment needs 500,000 yuan.

In 2016, Sinopec initiated a scientific and technological research project for this project.

According to Liu Haibo, the inspection center conducts more than 800 kilometers of buried pipeline inspection every year.

(Keywords: current detection)