Guwahati: An attempt to cap the blowout well of Baghjan in Tinsukia failed on Friday, said Oil India Limited (OIL) authority.
The attempt failed during the final capping operation was being carried out. “All operational crew reached site early in the morning today for carrying out the planned capping operation. BOP stack was hooked up with the Athey Wagon for placing on the well head. While the final capping operation was being attempted, the Athey Wagon toppled over at the last moment end the attempt did not succeed. Reasons for the same are being ascertained for next course of action,” OIL said in a statement.
The well-killing fluid was kept ready for killing the blowout well. Transferring and unloading of well-killing fluid at Baghjan blowout well site in Tinsukia was completed on Wednesday.
A well kill is an operation of placing a column of heavy fluid into a wellbore in order to prevent the flow of reservoir fluids without the need for pressure control equipment at the surface. It works on the principle that the hydrostatic head of the “kill fluid” or “kill mud” will be enough to suppress the pressure of the formation fluids.
Last week the final operation to kill and capping of the well got disrupted on Wednesday when three foreign experts sustained burn injuries while working on controlling the blaze.
Though there were reports of an explosion at the site, OIL later denied of it.
The gas well located at Baghjan had witnessed a blowout – an uncontrolled release of gas or oil – on May 27 and caught fire on June 9, when two firefighters were killed and destroyed several adjoining villages.