ONGC prepares Daman and C-Series development

Vol 17, PW 17 (10 Apr 14) Exploration & Production

ONGC has firmed up plans to begin drilling 30 wells under its Daman and C Series development project off the west coast of India by January 2015.

The Daman discovery area lies about 50-km off Mumbai in water depths of 25 to 30 metres and includes the C-23, C-24, C-26, B-12, B-9 and North Tapti fields. "Each field has six to nine (discovered) wells," says a senior ONGC source.

He adds ONGC, which is presently producing around 3m cm/d of gas from these fields, expects to raise production to 12m cm/d by 2018. ONGC will need a mat-supported jack-up to drill in the Daman area because of turbulent water conditions.

"We want to begin mobilising rigs in December (2014)," we are told. ONGC will drill each development well to a vertical depth of 2400 metres and carry out directional drilling over an additional 1400 metres if necessary.

ONGC believes each well can take up to 65 days to drill and will need an additional 12 days for completion. The wells should begin coming on-stream by end-2015.

The C-23, C-26 and B-12 fields will have one production platform each while C-24 will have three platforms. This Daman and C-Series project is one of 10 major ONGC development and redevelopment projects to monetise 300m to 400m tonnes of oil equivalent.

ONGC believes Daman holds 4-tcf.