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Chhatak Field


Location: P.O.- Dowarabazer, P.S.- Dowarabazer, District- Sunamgonj.




PO Dowarabazar, PS Dowarabazar, District Sunamganj


Year of discovery




Discovered by


Pakistan Petroleum Limited (PPL)


Gas reserve


Chhatak West: 1900 BCF (GIIP 2P) (Welldrill 1991; BUET 2001)

Chhatak West: 1003 BCF (GIIP 2P) (Bapex-Niko 2000)

Chhatak East: 5000 BCF (GIIP 3P) (HHSP 1986; Welldrill 1991)


Commencement of Gas Production


 07 July 1960


Cumulative production of gas

(upto 31 May 2015)


26.46 BCF


Sp. Gr. of Gas




Condensate Gas Ratio (CGR)


0.077 bbl/MMSCF


Heating value of sales gas




Year of installation of  the Gas Process Plant & its Capacity


1960, Knock-out plant, 1X10 MMSCFD.


In 08 January 1984, Chhatak Field and Haripur Field was handed over to Sylhet Gas Fields Limited (SGFL) through a Vending Agreement (by the cost of 1504 Lac Takas) between the Government of Bangladesh and SGFL.

Chhatak structure is located at the north end of Surma sub-basin of the Bengal Basin. Chhatak Gas Field was discovered by drilling the well Chhatak-1 at Tengratila of Dowarabazar Upazilla of Sunamganj District in 1959. In 1960, commercial production of gas commenced for the first time in the country by supplying about 4 MMCFD (million cubic feet of gas per day) to Chhatak Cement Factory and Pulp and Paper Mills that heralded a new era in the production and use of natural gas in Bangladesh. It was a landmark in the use of natural gas as an industrial prime-mover.

Production from the well (Chhatak-1) was continued upto 1984. After an unsuccessful work-over operation, the production suspended in 1985 due to excessive water and sand. Welldrill (1991) states the well suspended possibly because of the mechanical fault.

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