RE: Perspective on the Prospective17 Aug 2018 04:48
persimmon,
"Regarding Parta the experienced OAG investors will know that the time between drilling an appraisal well and through to drilling a production well usually takes years."
That, sir, is utter piffle. Codswallop. Horse-pucky. Nonsense, in other words.
Some appraisal wells (and I've been involved with quite a few hands-on) are almost straight away re-completed as producers. In a number of instances this possibility will be added as a contingency in the design in the case of success, and recompletion performed by the same rig before it even moves off. So all that remains is for the well to be tied into production infrastructure and ope, logged, and the wing-valve.
Let's take just two (but opposing) examples in RBD's 'portfolio': Colter and Parta. Colter is an 'Appraisal' well. It will be drilled , logged, and the data appraised. It will NOT be production-tested. But even well before the data interpretation has properly started (other than in the 'rush' form to be able to tell us whether it's a duster or not, the rig will have plugged back and permanently abandoned it. There will be no physical evidence on the seabed that it ever existed. It will be a physical impossibility for it to ever produce some time in the future, because casing will have been pulled, most of the wellbore will be filled with cement, and so on. As an oilwell, it will no longer exist.
The Parta wells are also 'Appraisal'. However they will be flow-tested, which is a sort of short-term 'temporary production'. Their architecture will thus be such that they can physically withstand the dynamic (thermal and pressure) conditions of such testing. Also (unlike Colter), they're seemingly close to existing production infrastructure, ie pipelines. So although I don't know exactly what the well architecture is (gimme time! :-)) ), I'd be willing to bet that it incorporates the possibility of completion as a producer. Maybe admittedly using a workover rig mobilised after the drilling rig has moved on, to run a permanent production liner (though a liner will possibly be run prior to testing (don't know, ...yet) and a production completion. But that might only be weeks after the drilling.
There are some 'OAG people' here who know more about oilwells than just investing in a few shares. I have serious doubts that their number includes yourself, though.