ONGC allocates $1bn spend for Nagayalanka

Vol 18, PW 17 (23 Apr 15) Exploration & Production

ONGC wants to hire a PMC to oversee development of its highly prospective onshore KG basin block KG-ONN-2003/1 where it is about to submit a $1bn Field Development Plan (FDP).

ONGC is buzzing with excitement ahead of a MC meeting scheduled for April 24 in Delhi when its Andhra Pradesh team will discuss the FDP for the Nagayalanka oil discoveries with partner and former block operator Cairn India, DGH officers and an oil ministry representative. ONGC expects the process of securing FDP approval to take up to six months and believes it can only begin drilling next year (2016).

ONGC is planning a tender in May to hire a PMC to carry out well engineering and design and to drill, complete and flow back 20 horizontal development wells, after multi-stage hydro-fracking. ONGC will also drill two effluent disposal wells.

The selected PMC will prepare tender documents to hire a 3000-hp land rig and contractors for integrated services and consumables. ONGC has already invited EoIs to hire a 250-tonne workover rig.

“All development wells are HP/HT in tight reservoirs,” confirms ONGC. Each development well will be drilled vertically to 4400 metres and horizontally to 1200-1500 metres.

Each effluent disposal well will be drilled to 1500 metres. ONGC wants a 3000-hp electrical rig which can withstand 8000-9000-psi pressure and temperatures of 320-340 degrees Fahrenheit.

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