Cairn lines up big plans for Ravva offshore blocks

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Cairn India Ltd (CIL) is betting big on the Ravva offshore blocks off the coast of Andhra Pradesh. After carrying out fruitful tests in last few months on these blocks, the company is now planning to undertake three workovers and possibly one appraisal well in the Ravva offshore block. CIL is investing around $100 million for the Ravva oilfield drilling operations, sources close to the company told FE.

The RX-8 well was spudded in July 2007 with the middle miocene reservoir as the primary objective and the early miocene reservoir as a secondary objective.

According to company sources, oil and gas was encountered in early miocene, middle miocene and late miocene reservoirs, where the total hydrocarbon bearing sands intersected in four pay zones is 50 metres net.

Last week, the company moved up a jack-up rig, Hercules-31, to carry out workover operations at these wells. The rig would carry out workover operations at wells RD3 and well RX 8. CIL is also likely to move another rig from its Cambay Basin soon in this regard. However, when contacted, company official declined to comment on the issue.

CIL started its offshore infill development and exploration-drilling programme on Ravva in October 2006, and the RX-8 well was spudded in July 2007. The rig is currently operating on an exploration well RX-8. A further three well workovers are planned with the rig to enhance its production capacity.