RE: Why not drill Rappu as well as Joe next?12 Aug 2019 20:00
Nomadic, when you say Rappu it isn't one of the better prospects are you just looking at the COS? If we look at the March 2019 CPR we can see that there are only six prospects with a higher COS than Rappu. Two of these are Jethro and Joe, which we are drilling first. This leaves Hammerhead, which although 81% COS has already been drilled 3 times and is only 11 MMBOE P50 on Orinduik. Jethro Extension and Jimmy are 43.2% COS but they are much smaller than both Jethro and Joe. The only other Tertiary prospect is KB which is much larger at 350 MMBOE and 28% COS.
All the other prospects are Upper Cretaceous and many of them are very large indeed, 4 of which are significantly larger than Jethro. This is also the main play type among the discoveries on Stabroek with 12 of the 13 discoveries being Cretaceous. Of these prospects Rappu has the highest COS at 28% and a P50 of 536 MMBOE, which is 2.5 times the size of Jethro.
The Orinuik partners have seismic data that covers the Tertiary Hammerhead discovery and the oil strike there enabled them to derisk the Orinduik Tertiary prospects. They did not have seismic data covering the Cretaceous Stabroek discoveries, but as they gain Cretaceous data from Jethro's deeper intervals and also from the Kanuku drill they will be able to calibrate and derisk their Cretaceous model.
Although Hammerhead Extension, Jethro Extension and Jimmy have a higher COS than the other prospects, they are rather small. Of the remaining prospects KB and Rappu offer the best mix of COS and MMBOE. Rappu is significantly bigger than KB whilst only slightly lower in COS. The fact that Rappu can be drilled as an extension of Joe-1 also means that it can be done much more cheaply and quickly than as a stand alone drill.
Obviously TLW's own prospect inventory may differ somewhat from the insight provided by ECO's CPR. However, based on the available evidence Rappu looks a very appealing drill target.
Finally, it is interesting to note the order of prospects in the CPR is Jethro, Joe, Jethro Extension, Rappu.