Prabha plans CBM production by March 2023

Vol 25, PW 25 (17 Nov 22) Exploration & Production

'Dirty' coal is making way for cleaner burning gas at Ahmedabad-based Prabha Energy's Jharia-1 CBM Block-1 in Jharkhand.

Prabha is preparing to begin the first commercial CBM production at the block, which lies inside a Coal India coalfield. "Between 40,000 to 50,000 cm/d CBM gas should be available from January to March (2023)," confirms a Prabha source.

Prabha estimates peak gas production will hit 870,000 cm/d sometime in the next 25 years, of which a maximum of 780,000 cm/d will be available for transport after using some gas at the field itself. On October 28 (2022), PNGRB joint advisor authorisation SC Gupta wrote to Prabha chief Prem Sawhney confirming authorisation for a six-inch diameter 9-km 'tie-in' connectivity pipeline to transport gas from the block to the upcoming 3384-km Urja Ganga pipeline, which GAIL is laying from Jagdishpur in Uttar Pradesh to Dhamra in Orissa, passing through Haldia in West Bengal and Bokaro in Jharkhand.

Sawhney applied to the PNGRB for authorisation for the pipeline on July 18 (2022). According to Prabha, a sister company of BSE-listed Deep Energy, gas will be available from EPS-1 of the Jharia CBM Block-1, where Prabha will set up a gas compressor, dehydration unit, filter unit, control valves, pig launcher, and telecoms equipment.

Gas will be injected into GAIL's proposed Urja Ganga pipeline along the 585-km Dobhi to Durgapur section at SV-28 (Sectionalising Valve). Prabha's 9-km tie-in connectivity pipeline will carry the gas to the injection point.

Prabha's 27-sq km Jharia CBM-I block includes the Kapuria, Moonidhi, Jharma, and Singra coal areas. Traditional coal mining activity covers almost half the block, and only about 12-sq km contains untapped coal seams for CBM exploitation, where Prabha plans 75 wells.

From 2008 to 2010, Prabha drilled and completed three CBM wells under a United Nations Development Programme (UNDP) funded project. "These three wells produced gas," we hear.

"Volume growth from the wells was in line with the typical CBM well development profile until the wells were capped." Coal India used Prabha's first gas to generate 500,000 units of electricity.