Essar Wildcat spuds KG#19 at GSPC discovery block

Vol 11, PW 23 (15 May 08) Exploration & Production

After months of delay, semi-submersible Essar Wildcat has at last begun drilling for GSPC at discovery block KG-OSN-2001/3, after spudding well KG#19 on May 2 in water depths of around 200 metres.

PETROWATCH learns that around two weeks earlier on April 20, GSPC allowed Essar Wildcat to carry out a â€کpenetration’ drill test to around 600 metres below the seabed to check if the rig was ready to begin drilling. When it passed the test, Essar Wildcat spud the well on May 2.

GSPC has set TD for this well at around 5000 metres, which it hopes to reach in 109 days, followed by 125 days of testing. By last week Essar Wildcat had drilled a 26-inch hole to 897 metres depth and the 20-inch casing was being cemented and â€کrun’ before installation of the Blow Out Preventor on the wellhead.

Elsewhere on the block, GSPC is preparing to test well KG#22, drilled by jack-up Deep Driller-1 in 90 metres water depth and where last week the drill bit reached basement at 6007 metres measured depth below the seabed. “Logging will start now,â€‌ we hear.

“This will be followed by testing.â€‌ Logging and testing are likely to take another two weeks at KG#22, which was spud on August 30 last year.

Reaching basement took 243 days – longer than expected because of technical and operational delays and because GSPC decided to drill further after encountering, “clean sand with high â€کresistivity’â€‌ beyond 5500 metres. Trouble, however, continues to beset GSPC at KG#31, drilled by Atwood Beacon in 70 metres water depth since September 20 last year.

Now on its third sidetrack, GSPC’s drill pipe was stuck last week at 5795 metres following a gas influx. After several failed attempts to free the stuck pipe, GSPC decided to cut the â€کbottom hole assembly’ and leave 100 metres of drill pipe behind so it could sidetrack the well again.

GSPC was so eager to begin drilling with Essar Wildcat that it gave the green signal to start even though several items remained incomplete on the list of Singapore-based rig certification agency ModuSpec.