M-13.1, r. 1 - Regulation respecting petroleum, natural gas and underground reservoirs

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51. Where the pressure differences of 2 zones may impede the recovery of mineral substances or the use of the underground reservoir owing to the absence of separation between zones, the well completion licensee shall complete the well either as a single zone or as a well with multiple separate zones.
O.C. 1539-88, s. 51.