RE: I promised...16 May 2021 00:20
brrr,
I'll tell you how.
Ok, the time included running casing. of course. But then primary cement. Ok, no prob. But the stage-collar was something that had been lying in an open-air warehouse in Gabon for about five years. 'Dropped the bomb', no probs either. But then, trying to get the collar to shear at recommended max 32000 psi, no dice. And of course we had primary cement above ! So decisions, decisions, on an open-air cement-unit, pouring rain, tree in the morning (as usual) in the rainforest. Fortunately I and the Cementer (a Gabonese bloke) were on good terms, and thought the same way, and knew what was at at stake and completely understood the downhole situation if we couldn't get the collar to shear.
So firt of all, we told all the rest of the crew to get well away, for their own safety. Then started to pressure-up to about 4000, which didn't work. So decided to 'bounce' the thing, a couple of times. OK, pouring rain, me and the cementer beginning to grin at each other even more ! It or us, both our lives (literally) and livelihoods on the line. The moth***ucker ancient old stage-coller finally sheared open at a frightening 4800 psi or so, but then we had to pump like crazy to get rid of the (already setting) upper remains of the first stage, sort ourselves out into some semblance of order, and then pump the second stage, which went like a dream.
Then write the report and flop into bed, refusing to answer the phone or anything. Subsequent report was 15 hours 'wait on cement' followed by assorted BoP manoevers which were supervised by the toolpusher.
It was an effin' long uncomfortable night. But one which I remember with a certain fondness, and pride. Not in a selfich way, neither. There was a lot of unspoken 'teamwork' involved, and it all worked out OK. Millions at stake, but that wasn't what was really in one's mind. Just 'get the job done right'.