WISR Ltd V.WZR

RE:RE:RE:RE:WesternZagros Converting Successful Kurdistan Region Discove

[Espana]

SrBuenTypo: The Oligocene at Sarqala is not the same as that at K-2 despite the inferences. The Oligocene reefal facies at Kurdamir extends in a narrow band back to Kirkuk etc. The section at Sarqala is Jeribe(Miocene limestone)/Dhiban(Oligocene gypsum, anhydrite)/Euphrates (Oligocene limestone) with very ballpark thicknesses of 80m/30m/50m respectively. These thicknesses can change dramatically from well to well as the sediments were deposited in a shallow sea and in some cases the Dhiban has been solutioned out. The key reservoir element porosity is generated by local dolomitization and fracturing. I''d estimate that approximatley 1/3 of the limestone sections or less might average 4-8% porosity in distinct thin beds. Deliverability at these low porosities is dramatically influenced by fracturing. Very high pore pressure also helps. As for rates I've seen 1000-12000 (Chia Suryk) BOPD over the Jeribe/Euphrates section. Isolated Euphrates rates are not common but in the1000-4000 BOPD range.The Euphrates is deeper and if heavily fractured could be affected by a water cut.
    S-1 was drilled near the crest of the Sarqala structure and was deviated. Inherently, S-1 would likely tap more fractures and an artifically thickened section of Jeribe. H-1 is a vertical well and down flank, with probably fewer fractures but is tapping the Euphrates as an added reservoir. My guess for H-1 3000-6000 BOPD would not surprise. 
   When Sarqala is developed they should have a better handle on fracture density and orientation (wells and seismic) and will be able to directionally drill to maximize rates. However IMO the biggest risk is going to be overall recoverable reserves.