Installation of the rig will take about five days and drilling of the relief well is likely to start on July 25 as scheduled, a Niko official said.

A logistic appliances supplier firm took nine days to bring the Century drilling company's rig to Tengratila gas field.

Land development at the drilling site is going on.

Meanwhile, intensity of the fire at the first relief well at the gas field further decreases yesterday with the flames coming down to less than 10 feet. The blaze at about 30 other points is also subsiding gradually.

Leakage of gas through innumerable points in nearby marshy lands however continued.