The JDZ will be all or nothing, IMO. What is taking so long is Sinodax are investigating many scenarios for full production to determine if they can get it to pencil out. Not only does that encompass the complex geologic/fluid modeling, it includes some rather sophisticated economic projections as well. They need to know what impact $30 oil will have on the bottom line, as well as $200 oil, and everything in between. That takes time. Projecting oil prices 5-10 years out is not straightforward, as we've seen over the last 2 years.
This isn't just about net pay zones, they had that information the day each well hit total depth. When Sinodax releases results, those results will be either walking away from the JDZ entirely or a full production plan. If it's the latter, which I believe it will be or it wouldn't be taking so long, I believe the Chinese will move forward at a pace that will give our fortnight loving African friends whiplash.
Again, this is simply my opinion.
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