Team News Riveting
Mumbai, May 15
A joint venture of Adani Group and Welspun Enterprises Ltd had discovered natural gas reserves in an area off the Mumbai coast in March and exceed the potential that was initially estimated.
The first-ever gas discovery was made in the NELP-VII block MB-OSN-2005/2, Adani Welspun Exploration Ltd (AWEL) had said. Spread across 714.6 square kilometers, the block is located in the prolific gas-prone Tapti-Daman sector of the Mumbai Offshore basin where production is already underway by other operators.
“The gas discovery made and announced earlier has got potential commercial interest. The drilling of an exploratory well in the NELP-VII area (MB-OSN-2005/2) in March 2021 has struck substantial quantities of gas and condensate at three reservoir levels,” AWEL said in a regulatory filing today. The pay zones and flow rates encountered have exceeded AWEL’s initial estimates.
Out of the three potential zones identified two objects were tested by Drill Stem Testing (DST), flowed substantial gas and condensate to surface. Object -I (3m) a clean sandstone reservoir flowed 9.7 million standard cubic feet per day (mmscfd) of gas along with 378 barrels/day of condensate through a 28/64“ choke with a flowing tubing head pressure (FTHP) of 2659 psi. Object -II (15m) another thick clean sandstone reservoir flowed 9.1 mmscfd of gas along with 443 barrels /day of condensate through a 28/64“ choke with a FTHP of 2566 psi.
Preliminary analysis of the data indicate that the Block has a high potential of commerciality with Gas Initially Inplace Place (GIIP) Contingent resources (2C) to the tune of 514 billion cubic feet (BCF) with additional Prospective resources of 50BCF. Additionally, seismic inversion, convential core and PVT studies of data collected from the discovery well are being analysed to assess the full potential of the find; preliminary results indicate potential upsides to estimated resources.
