Mineral Resources of Bangladesh

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Mineral Resources of Bangladesh

By | July 2012
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Geologically, Bangladesh occupies a greater part of the bengal basin and the country is covered by Tertiary folded sedimentary rocks (12%) in the north, north eastern and eastern parts; uplifted Pleistocene residuum (8%) in the north western, mid northern and eastern parts; and Holocene deposits (80%) consisting of unconsolidated sand, silt and clay. The oldest exposed rock is the Tura Sandstone of Palaeocene age but older rocks like Mesozoic, Palaeozoic amid Precambrian basement have been encountered in the drill holes in the north western part of the country.

Because of a different geological environment, important mineral deposits of Bangladesh are natural gas, coal, limestone, hardrock, gravel, boulder, glass sand, construction sand, white clay, brick clay, peat, and beach sand heavy minerals. Tertiary Barail shales occurring within the oil and gas windows have generated natural gas and oil found in Bangladesh. After generation, gas and oil have migrated upward through multi-kilometre rock layers above, to reach and accumulate in suitable sandstone reservoirs in the Neogene Bhuban and Bokabil rock units.

Oil and gas: There are 22 discovered gas fields in Bangladesh of various sizes. The total reserve of 20 gas fields is about 26 Tcf (trillion cubic feet). Gas in most of the fields is dry, in a few fields it is wet, with considerable amounts of condensate, eg at Beanibazar (16 bbl/mmcfg), Jalalabad (15 bbl/mmcfg), and Kailashtila (13 bbl/mmcfg). Currently, natural gas accounts for more than 70% of the total commercial energy consumption and the major part of the future energy demand would be met from it.

Mineral Resources in Bangladesh
The only oilfield of the country has been discovered at Haripur in 1986. It has an estimated in-place oil reserve of about 10 million barrels, with a recoverable reserve of about 6 million barrels. The oil field produced 0.56 million barrels of Oilfield, Haripur, Sylhet oil in six and a half...

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