ঢাকাসোমবার, ৪ঠা মার্চ, ২০২৪ খ্রিস্টাব্দ

Oil reserves found in the Sylhet-10 gas well

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ডিসেম্বর ১০, ২০২৩ ২:৪৬ অপরাহ্ণ
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Oil reserves, which can produce 500–600 barrels per day, have been discovered at the Sylhet-10 well, State Minister for Power, Energy, and Mineral Resources Nasrul Hamid said today.

In total, four layers of reserve fuel have also been identified.

The first layer, at a depth of 1,400 meters, is where oil was found. Although no gas was found in the first layer, more tests need to be conducted before the full picture can be understood.

This wasn’t the first time that Bangladesh had struck oil.

Oil was first discovered in Rangpur’s Haripur field back in the late 1980s.

The authorities back then ran a drilling stamp test to pump out around 500 barrels of the thick oil.

The technique they used, however, was applicable for gas production and not oil.

Later, the government decided the field was not commercially viable, and it was abandoned.

The first time Bangladesh struck commercially feasible oil was back in 2012.

“This is the first time that we have found economically viable oil resources, estimated at about 153 million barrels, in the two gas fields, 280km from the capital,” the then chairman of Petrobangla, Mohammad Hussain Monsur, told reporters.

The oil was discovered in two gas fields in Sylhet.

The first layer, at a depth of 1,400 meters, is where oil was found.

Although no gas was found in the first layer, more tests need to be conducted before the full picture can be understood.

In the second layer, at around 2,460–2475 meters, initial tests revealed reserves of around 20–25 mmcfd of gas.

At a depth of around 2,540–2,575 meters, around 20–25 mm of gas was also discovered during a test on November 26.

The pressure there stands at 3,500 PSI.

The final layer, at 3,300 metres, could not be fully investigated due to the high pressure of around 6,000 PSI.

After all the tests are completed, the full extent of the gas and oil reserves will be known, the state minister said.

The reserves could be worth around Tk8,500 crore and may be usable for more than 15 years.

Currently, about 2,300 metric tons of gas are being produced from 21 gas fields in the country, while about 700 metric tons of gas are being imported from abroad to meet the demand of about 4,000 metric tons, leaving a deficit of about 1,000 metric tons.

Bangladesh required about 6.7 million metric tons of fuel in fiscal 2021–2022, with the country’s fuel consumption rising by up to 8 percent each year, according to the state-run BPC.

To meet the overall demand, around 700,000 lakh metric tons of fuel are extracted from domestic sources. Meanwhile, Eastern Refinery, the country’s only oil refiner, has the capacity to purify 1.5 million metric tons of crude oil every year.

The well Sylhet-7, the most discussed well in the history of Bangladesh as this was the single oil-producing well of the country, was drilled at Haripur in 1986.

After 7 years of more or less uninterrupted production of a total of 560869 barrels of crude oil, the well (Syl-7) ceased its production on July 14, 1994, due to a gradual decline in well head pressure.

In March 2005, the workover was accomplished on the well Syl-7 and was completed as a gas producer with an initial production capacity of 15 mmcfd.