“SPEARING” THE RISER

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RISER INSERTION TUBE HORIZON BOP DISCOVERER ENTERPRISE DRILLSHIP DAMAGED RISER INSERTION TUBE TOOL “SPEARING” THE RISER Rubber diaphragms conform around drill pipe to plug riser as much as possible. Insertion tube is guided into riser. INSERTION TUBE RISER DRILL PIPE OIL OIL Hydrocarbons are “lifted” to the drillship by inducing nitrogen in the drill pipe. Rubber diaphragms minimize seawater ingress near the insertion tube inlet which signifi- cantly reduces the appearance of hydrates. CAPPED DRILL PIPE METHANOL LINE RUBBER DIAPHRAGMS LMRP BOUYANCY MODULE

Transcript of “SPEARING” THE RISER

RISER INSERTION TUBE

HORIZON BOP

DISCOVERER ENTERPRISEDRILLSHIP

DAMAGED RISER

INSERTION TUBE TOOL

“SPEARING” THE RISER

Rubber diaphragms conform around drill pipe to plug riser as much as possible.

Insertion tube is guided into riser.

INSERTION TUBE

RISER

DRILL PIPE

OIL

OIL

Hydrocarbons are “lifted” to the drillship by inducing nitrogen in the drill pipe. Rubber diaphragms minimize seawater ingress near the insertion tube inlet which signifi-cantly reduces the appearance of hydrates.

CAPPED DRILL PIPE

METHANOL LINE

RUBBER DIAPHRAGMS

LMRP

BOUYANCY MODULE