Dual-bop and common riser system

Details Dual-bop and common riser system Dual-bop and common riser system

E - Fixed Constructions

21

B

E21B 29/12 (2006.01)

Patent

CA 2634946

The disclosure is drawn to methods of drilling wells utilizing blow out prevention components of differing pressure ratings. In the initial drilling phase, a lower pressure rated blow out prevention component is used. In a subsequent drilling phase where a reservoir of a natural resource is penetrated, a higher pressure rated blow out prevention component is used.

La présente invention concerne des procédés de forage de puits utilisant des éléments anti-éruption à capacités de pression différentes. Lors de la phase de forage initiale, on emploie un élément anti-éruption à capacité de pression inférieure. Lors d~une phase de forage ultérieure au cours de laquelle un réservoir de ressources naturelles est atteint, on emploie un élément anti-éruption à capacité de pression supérieure.

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