- News>
- Companies & Commodities
Reliance revises reserves of KG Basin gas find
New Delhi, Apr 30: Reliance Industries has upwardly revised the reserves of its recent gas find in Krishna Godavari Basin to 10.45 trillion cubic feet.
New Delhi, Apr 30: Reliance Industries has upwardly revised the reserves of its recent gas find in Krishna Godavari Basin to 10.45 trillion cubic feet.
Informing about another huge exploration success in block D6, 26 km off the Andhra coast, RIL told the government that its 8th exploration well (D6-D1) in the block encountered in excess of 100 meters of net gas pay.
"RIL has increased the estimate of initial in-place gas reserves for block D6 (KG-dwn-98/3) to 10.45 TCF. This updated in-place gas figure does not include volumes attributed to the last two wells (D1 and A2) but only the first six wells drilled on the block," sources said.
Degoyler & Macnaughton will integrate results of the last two wells for the final reserves certification report.
RIL had earlier put the in-place reserves at 9.46 TCF based on its four discoveries in the block - Dhirubhai-1, Dhirubhai-2, Dhibrubhai-3 and Dhirubhai-4. Sources said RIL`s current exploration programme has evaluated less than 16 per cent of the total D6 block area. A 2,500 square km 3-d seismic survey will be shot in October 2003, which will provide the basis for a second exploration drilling campaign.
The firm has declared gas find Dhirubhai-1 as commercial. It plans to recover at least 70 per cent of the estimated 4.1 TCF in-place gas reserves from the well. Dhirubhai-1 can produce 40 million standard cubic meters per day of gas in two years time, they said.
Dhirubhai-2 is assessed to contain 0.16 TCF of reserves, Dhirubhai-3 3.5 TCF, while Dhirubhai-4, on a different structure 10-km away from the previous three finds, is estimated to have 1.7 TCF reserves.
Last month, the seventh well in block D6 had given 33.8 million cubic feet of dry, sweet gas per day. Sources said RIL has indicated conservative recovery of 70 per cent gas, mostly dry methane, from Dhirubhai-1 and there was a possibility of improved recovery through suction booster compression, sand control and well completion techniques and closer spacing of development wells.
"The current projected recovery factor of 70 per cent is quite conservative. Ultimate recovery factor in single phase, volumetric, dry gas reservoirs without water drive can be as high as 80-90 per cent," they said.
RIL holds 90 per cent interest in the block d6 and the remaining is with Niko Resources of Canada. The gas, in the block, is sweet, dry, mostly methane (99.7 per cent methane content).
RIL-Niko Consortium has committed investing 145.75 million dollars in the work program for the KG-dwn-98/3 deep water block in three phases of oil and gas exploration spread over 6-7 years.
Bureau Report
"RIL has increased the estimate of initial in-place gas reserves for block D6 (KG-dwn-98/3) to 10.45 TCF. This updated in-place gas figure does not include volumes attributed to the last two wells (D1 and A2) but only the first six wells drilled on the block," sources said.
Degoyler & Macnaughton will integrate results of the last two wells for the final reserves certification report.
RIL had earlier put the in-place reserves at 9.46 TCF based on its four discoveries in the block - Dhirubhai-1, Dhirubhai-2, Dhibrubhai-3 and Dhirubhai-4. Sources said RIL`s current exploration programme has evaluated less than 16 per cent of the total D6 block area. A 2,500 square km 3-d seismic survey will be shot in October 2003, which will provide the basis for a second exploration drilling campaign.
The firm has declared gas find Dhirubhai-1 as commercial. It plans to recover at least 70 per cent of the estimated 4.1 TCF in-place gas reserves from the well. Dhirubhai-1 can produce 40 million standard cubic meters per day of gas in two years time, they said.
Dhirubhai-2 is assessed to contain 0.16 TCF of reserves, Dhirubhai-3 3.5 TCF, while Dhirubhai-4, on a different structure 10-km away from the previous three finds, is estimated to have 1.7 TCF reserves.
Last month, the seventh well in block D6 had given 33.8 million cubic feet of dry, sweet gas per day. Sources said RIL has indicated conservative recovery of 70 per cent gas, mostly dry methane, from Dhirubhai-1 and there was a possibility of improved recovery through suction booster compression, sand control and well completion techniques and closer spacing of development wells.
"The current projected recovery factor of 70 per cent is quite conservative. Ultimate recovery factor in single phase, volumetric, dry gas reservoirs without water drive can be as high as 80-90 per cent," they said.
RIL holds 90 per cent interest in the block d6 and the remaining is with Niko Resources of Canada. The gas, in the block, is sweet, dry, mostly methane (99.7 per cent methane content).
RIL-Niko Consortium has committed investing 145.75 million dollars in the work program for the KG-dwn-98/3 deep water block in three phases of oil and gas exploration spread over 6-7 years.
Bureau Report