GeoEnpro begins 14-well development at Kharsang

Vol 12, PW 4 (10 Jul 08) Exploration & Production

Geopetrol and Jubilant Energy joint venture GeoEnpro has begun a 14-well development programme to boost stagnant production at the 12-sq km Kharsang oilfield in Arunachal Pradesh.

PETROWATCH learns the first of the 14 planned wells was spud on June 16 and will be drilled to TD of 850 metres. “There are some teething troubles with the rig because it is new,â€‌ reports a source.

“Even the geological formation is tight. Things should be smoother from the second well.

â€‌ GeoEnpro wants to drill all 14 wells within a year using a brand new ZJ-30, 750-hp mobile Chinese rig from Indian contractor JayBee Energy, hired at $15,000/day. JayBee has also hired four rigs to Oil India.

“Kharsang production will double from 1000 b/d to 2000 b/d after the development drilling campaign,â€‌ adds a source. All 14 development wells will be drilled near existing producing wells.

“They will be â€کin-fill’ and â€کstep-out’ wells,â€‌ adds a source. Originally slated for May, the 14-well development programme was delayed for “unavoidable reasons.

â€‌ Kharsang presently has 19 wells producing mainly oil. GeoEnpro completed a workover operation on 12 of them in April this year using a rig from Shiv Vani.

GeoEnpro believes Kharsang could produce up to 20,000 cm/d of gas if production equipment is activated. This has not been done, says a source, in “the absence of a market for gas.

â€‌ For now, Kharsang produces 7000 to 8000 cm/d of gas from three wells. This is used mainly for internal consumption and to fire a captive power plant.

In June this year, seismic contractor Geophysical Institute of Israel completed a 30-sq km 3D survey over Kharsang and some adjoining Oil India fields with Indian contractor Asian Oilfield Services.