Boring or penetrating the earth – Boring a submerged formation – Boring from floating support with submerged independent...
Patent
1995-04-25
1996-10-01
Schoeppel, Roger J.
Boring or penetrating the earth
Boring a submerged formation
Boring from floating support with submerged independent...
175 10, 166349, 166365, E21B 7128
Patent
active
055604366
ABSTRACT:
A single drilling guide base for subsea oil wells includes two parts, namely a lower part (1) and an upper part (2), which are bolted together (at 7). The whole arrangement is provided with a seating indicator (5) connected to the lower part and holes in a funnel shaped portion of the upper part for the discharge of gravel.
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Awad Samir P.
Nogueira Emmanuel F.
Petroleo Brasileiro S.A. - Petrobras
Schoeppel Roger J.
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