RE:Time/depth relation not normalIt's very normal if you're looking for the top of a formation. The lwd neutron and density tools are usually around 20 meters above the bit in the BHA. This means that you'd have to drill part of your formation of interest to get the tools into the formation in order to identify the top.
This is sometimes not desirable because, if you wanted to core the formation, then how can you core it if you've already drilled it out? Some "expert" suggested that they could side track to core and it would only take two weeks. SMH!
So what they do is once near bit resistivity picks up formation change and there is a change in "D-exponent" calculated from the actual drilling parameters they drill a meter or so and circulate bottoms-up which can take a couple of hours. The geologist inspects the sample and continue this process until he or she or they definitively identify the top. Then they poh, make up core barrel assembly, rih and core which they do with very low penetration rate because they don't want to "jam off" the core barrel.
They may well have just finished coring the Campanian. I'll stick to my thesis that they will divulge zero information because they are paying over $80 million to acquire that information and every operator out there would love to get their hands on it to correlate with their seismic in their seismic inversion analysis. That information has tremendous monetary value. I'd leverage it and shop it out only to serious possible farm in partners.
So for investors, it's wait and see for a while longer. Note that I have zero info about the well. I'm just offering another possibility to what OCM said. And both may be true at the same time.