Page 27 - DGH_Annual_Report

India's Sedimentary Basins: Subsurface Insights 27

• Overview of producing fields:

Commercial production in onland area
commenced in 1986. Major producing fields with
cumulative production in parenthesis are namely
Narimanam (3.6 MMT, 1 BCM), Kanjirangudi (5.5
BCM), Periyapattinam (4.4 BCM), Kuthalam (3.7
BCM), Kamalapuram (2 MMT, 0.6 BCM). The
area has 26 fields with 243 producing wells. The
maximum flow rates achieved by any field on
record are Oil 1,320 BOPD and Gas 2 MMSCMD.
Commercial production in shallow water area
commenced in 1997. Major producing fields
with cumulative production in parenthesis are
namely PY-3 (3 MMT). The area has 2 fields with
2 producing wells. The maximum flow rates
achieved by any field on record are Oil 4 BOPD.
• Basin datasets and studies:

As of 31.03.2025, NDR has archived primary
datasets of 111,592 LKM 2D seismic, 51,003 SKM
3D seismic and 872 conventional wells (641
exploratory). Multiple flavour of reprocessed
seismic datasets are also archived whenever the
same are provided by E&P Operators.

Source: DGH Internal

Basin appraisal and regime-wise active acreage:

Location Basin area (skm) Appraised(skm) Active acreage [Nos./Area (skm)]

Onland 37,825 37,825 (100%) Nomination: 27/4,028 Fields: 2/267
OALP: 2/1,878

Shallow water 43,723 43,723 (100%) Fields: 2/157 NELP: 1/858 OALP:
2/3,905

Deepwater 158,452 158,452 (100%) OALP: 6/44,658

The basin occupies an area of 240,000 sq km. It has been appraised to the extent of 240,000 sq km
(100%). The active acreage nos. across regime(s) are 42 with area 55,750 sq. km (23% of basin area
Bidding opportunities:

Deepwater: 1 OALP (Round X) block with 9,991 sq km area