Adani Welspun Exploration, a joint venture between Adani Enterprises (65% stake) and Welspun Natural Resources (35% stake), has initiated a bid process for an integrated gas development project offshore India's west coast. The venture operates key oil and gas assets in the Mumbai and Kutch offshore region and is pursuing a two-phased engineering, procurement, and construction management (EPCM) model for the new development.

Project Scope and Blocks

The EPCM tender covers the integrated development of three blocks in the Tapti-Daman sector of the Mumbai offshore basin: MB-OSN-2005/2 (MB), MB/OSDSF/B9/2016 (B9), and MB/OSDSF/2024 (C37). These blocks host several promising gas discoveries. The joint venture plans to develop all three blocks through an integrated facilities concept, which includes four offshore unmanned wellhead platforms and subsea pipelines to transport well fluids from platforms in blocks B9 and C37 to a nodal platform in Block MB.

Phase One Development

The first phase focuses on developing the MBA nodal platform, tied to four gas production wells. This phase also includes close to 30 kilometers of subsea trunklines and an onshore central control centre. First gas from this initial phase is expected by the fourth quarter of the 2028-2029 financial year. The MBA platform will transfer well fluids to a nearby third-party processing facility via a subsea multiphase pipeline.

Phase Two Development

The second development phase comprises at least three wellhead platforms—MBB, B9, and C37—which will be tied back to 11 or 12 offshore wells. This phase also includes associated subsea intra-field pipelines and is anticipated to come on stream during the first quarter of the 2031-2032 financial year.

Workscope and Production Targets

The integrated EPCM development workscope includes detailed engineering, procurement, fabrication, assembly, inspection, transportation, installation, and commissioning of the offshore structures. The project involves a total gas flow rate of 200 million cubic feet per day from the MBA nodal platform to the third-party offshore processing facility, though the precise gas production target for the integrated development could not be confirmed. Several domestic and international contractors are expected to show interest in the tender.