ONGC's new 3D deadline for Gandhar oilfield

Vol 19, PW 8 (17 Dec 15) Exploration & Production

ONGC is expecting a good response after extending the tender bid and mobilisation deadlines for a proposed 300-sq km 3D survey at the offshore extension of the Gandhar field onshore Gujarat, estimated to cost around $3m.

Bids for the Ocean Bottom Cable (OBC)/Ocean Bottom Node (OBN) Transition Zone (TZ) survey were originally due on December 2 but ONGC extended the deadline to December 30 after bidder requests. "ONGC held the pre-bid on November 2 and sent final clarifications only on November 27," explains a likely bidder.

"No way could contractors have sent bids by December 2!" ONGC has also agreed to extend the vessel mobilisation deadline from May 2016 to October 15, 2016 - welcomed by contractors. ONGC earlier wanted seismic shot during the 2015-16 season from October 2015 to May 2016.

"Assuming ONGC awards a contract in January and taking into account the 75-day mobilisation period," we hear, "the contractor would get just two months to acquire data, which is impossible." Bidders say the area is complex and data acquisition needs one full season or five months, followed by one month for processing.

ONGC agreed, and extended the project timeframe. Among those at the pre-bid were Houston-based Geokinetics, and UK-based Marine Geology Services (MGS) and Geotech.

Other companies likely to bid include Mumbai-based Hind Geophysical Services and Geofizyka Krakow.