Bid & Tender
GAIL to Install Corrosion Monitors in Pipelines

Date : Jul 30, 2015

After a rap by oil regulator, state-run gas utility GAIL India will install electronic systems to monitor corrosion in pipelines to avoid repeat of the June, 2014 leak and explosion in a KG-basin line that killed 29 persons.


A GAIL pipeline near Nagaram village in Tatipaka district of Andhra Pradesh had on June 27, 2014 exploded and caught fire after a gas leak caused by corrosion.


To avoid repeat of such incidents, GAIL plans to install corrosion monitoring systems in the entire Krishna Godavari basin pipeline network in Andhra Pradesh.


It has floated a tender for "supply, installation, testing and commissioning of internal corrosion monitoring systems for GAIL pipelines using Electrical Resistance probes and corrosion coupons." The tender is due on August 14, according to the bid document.


Petroleum and Natural Gas Regulatory Board (PNGRB) had last week found GAIL guilty of severe lapses in the Andhra pipeline accident and imposed a civil penalty of Rs 2 million on the company and an additional penalty of Rs 0.1 million per day for continuation of default.


The GAIL pipeline was designed to transport dry gas but was used for transporting wet gas having condensate/water. This caused corrosion and subsequent leak from the pipeline lying four meters below the ground. An ignition led to explosion and the subsequent fire, killing at last 29 people and injuring 10 others.


"The transportation of wet gas has been the principal reason of failure of pipeline," PNGRB had said in an order. PNGRB said GAIL "admitted various lapses", including not providing gas dehydration unit at the mouth of pipeline as well as transporting wet gas through a line designed for dry gas.