RE: Re.....17 Nov 2019 15:13
fergu,
"Your “imaginary “ paragraph, could you comment further on such costs?"
I'm sorry, but I can't, really, because I haven't a clue what UK onshore rig dayrate figures are, nor the costs for a coiled tubing / nitrogen spread is. Maybe I could give a 'ballpark' figure, but it's likely to be wildly wrong, so I won't do so.
Instead, maybe we can look at what has been done so far, and what a possible alternative could have been.
Tha actual scenario. The well was drilled, logged, the completion string run, and the 'xmas tree' installed. Then the rig was rigged-down, mobilised off-site, and the test spread and CT equipment moved in. The CT injector head is rigged to the tree (using a mobile crane), and testing started. Had the well 'come in' naturally, with gas as expected, at some point the CT would have been rigged down and demobilised, and the EWT continued under natural flow.
A perfectly good, step-by-step plan. You have rig costs 'x' (by far the most costly single fixed expense, other than the well itself), followed by CT cost 'y' (including crane), then followed only by test spread costs 'z' for the duration of the EWT. From recollection, the time for rig-down and move of the rig through to the EWT starting was something like a month, maybe a bit more. (I'm too lazy to check).
With the rig remaining in place, instead of cost 'x' then followed by 'y+z' shortly followed by just 'z', you'd have had 'x+y+z' for a month at least.
As a very rough guess, this could have shoved an extra couple of million onto the bills. Maybe more, maybe less, I don't know, but it would be a significant expense. Such a 'rig in' version of operations is common, especially in remote locations where all contingencies have to be covered at the same time, and of course offshore. But that isn't the case at WN, so the plan as performed was perfectly acceptable.
I agree with you saying " why do we need further approval for an ESP which are widely utilised in the industry-shame that this had to be deduced from a Rathlin PR meeting." Yup, a poor show. And I still fail to see how the EA gets involved, except possibly approving the move back in of a workover rig, with the further truck traffic that entails, and other 'surface' considerations. However if 'on the ground' information is the only way we can get (sparse) information, let's hope there's some more!
I know for a fact that there are at least a couple of posters here who live not-too-distant from the wellsites. It would be interesting to know if there's any activity evident at either WNB od WNA locations, such as a foundation slab for the storage tank being laid at WNA, and whether WNB looks 'ready to go'. Of course, the bad weather may be having a negative effect at presen, but nowt to be done in that respect. Plus surely any local resident in the immediate vicinity will have been informed via 'community meetings' and suchlike whether any truck convoys are anticipated in the near future.