Multiple drilling then casing/cementing?

I know from experience that operators have batched drilled as many as
3-4 conductor wellbores and then run and cemented consecutive
conductors strings. e.g Heidrun field in Norwegian Sea.

In this vain, has anyone had experience of consecutively 'batch
drilling' 17 1/2" or 26" surface wellbores and then running 2-3 20"
or 13 3/8" surface strings.

Peter Aird.
2 Answer(s)

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