Project Profile
Value: Undisclosed
Location: Western offshore India
Start-up Year: -
Area: 100 sq km
The Neelam field, located in Western offshore India, is a heteregeneous limestone reservoir of Middle to Late Eocene age with a lack of well defined layering, variation in lithofacies and early high water cut behaviour. Detailed characterisation of the reservoir was needed to understand its complex nature in order to arrest the declining production trend.
Neelam field is the name of the combined structure of B-131 Southern and B-132 Northern located in Bombay Offshore. After exploratory drilling which proved the structures to be hydrocarbon bearing. Oil and Natural Gas Corporation Limited (ONGC) completed the delineation work Delineation Work of Neelam field and prepared the Delineation Reports Delineation Report.
ONGC carried 3D seismic survey and collected data on Neelam field during November-December 1989 which was programmed to be processed and interpreted by March 1991 by its Geo-Data Processing and Interpretation Centre (GEOPIC). However, it was only in April 1992 that GEOPIC could issue the 3D-interpretation report on Neelam field. The 3D map showed a number of important differences from the structure map prepared earlier. The 3D-interpretation report also suggested that the structure of the Neelam field turned out to be steeper than earlier envisaged, thus pointing towards the possibility of lesser reserves. IRS had, however, prepared Technological Scheme for Development of the Neelam field in March 1989, based on the 2D seismic data. In May 1989, ONGC submitted Feasibility Report for development of the Neelam field to the Government, on the basis of IRS’s Technological Scheme without conducting 3D seismic survey as recommended in the Delineation Report. The Government approved Feasibility Report in February 1991.
The field was delineated by 14 exploratory wells and had oil initially in place of about 110 MMt in an area of about 100 sq. kms. The first development commenced in the year 1990 through a nine-well platform in the southern sector. Full-fledged development was implemented in 1994 with a total of 11 production and two water injection platforms.
Operators:
Oil and Natural Gas Corporation: Operator with 100% interest
Contractors:
L&T Hydrocarbon Engineering Limited: EPCIC contract - one new process platform having gas processing and compression facilities, three new well head platforms, 32 km pipeline, clamp-on on three existing platforms and modification work on eight existing platforms in the Neelam field in western offshore basin in India. (March, 2017)