Looking at Brighterspark's post on Gurame I wasnt and still arent a big fan of Gurame looking at the previous operators that decided this isnt viable. But mistakes can be made as pointed out by Dr Daz
"The COE well firstly reached TD before the Belumail (key oil target/zone/play)"
Now back on the history of Blackwood I cant understand why a major player like Shell stopped short of drilling the Elang and Plover sandstones with the Wonarah 1 (Blackwood East) when all the discoveries in the area found gas in this formation such as Evans Shoals, Caldita, Barossa, Heron. Could anyone with a better understanding answer this for me please. Eni and MEO seem to think it's still a viable target.
Wonarah 1 was drilled in 1998 by Shell Development (Australia) Pty Ltd, 74 km west of Evans Shoals 1. The primary objective was the Late Cretaceous intra-Wangarlu Formation sandstones within a stratigraphic trap identified by an AVO anomaly. The Paleocene Johnson Formation was the secondary objective (Shell Development (Australia) Limited, 1999b).
The well penetrated a Cenozoic to Cretaceous section, reaching a TD of 2800 mDF in claystones of the Wangarlu Formation. No significant hydrocarbons were encountered and the well was plugged and abandoned as a dry hole. All formation tops came within the tolerance levels set in the well prognosis. However, Wangarlu Formation sandstone reservoirs were not intersected in the well. Hence, the Wangarlu play is not a viable target in this area. No testing was undertaken since fluorescence shows were not observed from cuttings or sidewall cores and total gas values were negligible (peaking at 0.1%). The AVO anomaly appears to be an artefact of seismic processing
MEO Price at posting:
20.0¢ Sentiment: Hold Disclosure: Held
