Boring or penetrating the earth – Boring a submerged formation
Reexamination Certificate
2009-04-20
2011-12-20
Beach, Thomas (Department: 3674)
Boring or penetrating the earth
Boring a submerged formation
C166S352000, C166S358000, C166S085400, C114S264000
Reexamination Certificate
active
08079426
ABSTRACT:
A method for handling a blow-out-preventer on a drilling platform and a drilling platform having a lower pontoon structure; a plurality of columns extending upwards from the lower pontoon structure; an upper deck structure connecting the upper deck structure connecting the upper portions of the columns to each other; a detachable rotary table assembly arranged in a rotary table opening in the upper deck structure; a derrick provided with a lifting arrangement and being arranged on the upper deck structure above the rotary table opening; and a detachable rotary table assembly a spider and a blow-out-preventer.
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Beach Thomas
Buck Matthew
Gesmer Updegrove LLP
GVA Consultants AB
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