03-02-2012, 01:24 AM
A little reef detective work. Look at http://www.interoil.com/faq/Elk_Antelope..._FINAL.PDF page 49. (Note I believe this map has the names of PPL237 and PPL238 transposed) I think some of these onshore reefs are where the reefs actually outcrop at the surface. Of course a reef outcropping at the surface is no good for a reservoir but what it might tell us is where we should look for those reefs that are buried deep enough to have reservoir potential. Note that the offshore reefs Pandora, Pasca, Uramu and the reef shown North of Bwata are all aligned with the Bwata complex as well as T-Rex and Seismosaurus, Allosaurus and Brontosaurus.
Now look at the Map at http://www.igcworld.com/PDF/Basin_Discovery.pdf . Note that the barrier reef shown on page 49 above appears to agree with this map regarding the outcropping of the Dari carbonate west of out PPL 237 (shaded in purple). This what IOC calls the Puri Limestone. Read the first paragraph below the map. Note that they say this carbonate is only prospective west of the outcropping where the carbonate is buried. That would be where the shallow Kuru gas field is and where the above mentioned deeper prospects T-Rex, Seismosaurus, Allosaurus and Brontosaurus are located.
Now the string of pearls swings around the outcropping at the northwest corner of PPL238 (marked on the map as PPL237) and heads south-southeast to Antelope reef and to the next outcropping shown on the southeast boundary of PPL238 (PPL237 on the page 49 map). Now look at http://www.interoil.com/presentation/201...tation.pdf chart 24. The yellow spots are outcroppings of Miocene limestone. See the Saw Mountain outcropping near Tuna. The outcroppings on this map to the northwest and west seem to agree with the other maps. The string of pearls then follows the coast line down to Tuna, Wahoo, Mako, Mackeral and several others if I am not wrong. Of course we must not forget those pearls in PRL 15 and all of the others between Antelope and Tuna i.e. Big Horn, Wolverine, Zebra and maybe others. I think all of the leads along the coast line in PPL236 are prospective for reefs. Whale may be too shallow for a reef prospect. Whale was originally a Pale/Subu prospect. Remember as you move to the East toward the Mountains the reefs become more shallow or outcrop. Note that the reef outcrops on the West, North and East. The buried reefs are in between these outcroppings.