Guwahati: One other try and cap the blowout of an Oil India Restricted (OIL) pure fuel effectively, which has been on hearth since June 9 in Higher Assam’s Tinsukia district, failed on Monday attributable to technical glitches.
“The blowout preventer (BOP) stack was efficiently positioned over the wellhead. Whereas BOP stack alignment job was underway to insert the studs, one of many two bull traces related to the Athey Wagon, which was lifting the BOP stack, got here out from the socket because of the affect of extreme warmth,” mentioned an OIL assertion.
“From the protection perspective and stability required for alignment of the BOP stack on the wellhead, specialists determined to securely take away the BOP stack from the wellhead. Operations will resume after finishing up vital rectification jobs,” it added.
The BOP is a specialised valve — a tool used to seal management and monitor oil and pure fuel wells to forestall blowouts, or the uncontrolled launch of fuel or oil from a effectively. They’re normally put in in stacks of different valves.
An Athey Wagon is a tool used to put the BOP stack, which weighs round three tonnes. It consists of a track-mounted growth elevate with a hook on one finish that’s used to put the BOP stack on the wellhead.
On July 31, specialists had been trying to put the BOP stack on the wellhead when the Athey Wagon “toppled over” resulting in the suspension of labor on capping the blowout.
The fuel effectively had a blowout on Might 27, when workover operation, or upkeep work, to find a brand new fuel reservoir was underway. Whereas efforts to cap the blow out had been underway, the effectively out of the blue caught hearth on June 9 and two firefighters had been killed within the blaze that’s but to be doused.
Set up of the BOP is the penultimate job wanted to finish the operation. As soon as the BOP is put in, the method of “killing the effectively” begins instantly.
In line with OIL officers, that’s accomplished by injecting a “kill fluid”, a sludge-like specifically ready mud, into the effectively slowly to push the fuel from the effectively again to the reservoir. The method takes round two-three days, because the fluid must fill your complete size of the three.5-kilometre deep effectively.
Initially, OIL had mentioned that the effectively could be plugged in a month. Later, the deadline was prolonged to July 7. However floods, technical glitches, and burn damage of three overseas specialists whereas trying to douse the hearth have led to a number of delays.
Because the Baghjan effectively is situated near Dibru Saikhowa Nationwide Park (DSNP) and the ecologically-sensitive Maguri Motapung Wetland, there have been fears of environmental injury to the realm because of the blowout and hearth.
A number of research by completely different companies are underway to measure the extent of the injury.
In June, the Nationwide Inexperienced Tribunal (NGT) had ordered the formation of an professional committee to probe the blowout and subsequent hearth and assess the injury precipitated to human life, wildlife, and the surroundings due to the economic catastrophe.