Flowline connection means
Patent
·
OSTI ID:5164750
A method is described for connecting a flowline to a subsea structure comprising: deploying a riser and flowline connection tool downwardly to the subsea structure; landing and securing the connection tool onto the subsea structure; pulling a flowline terminal head on sea-bottom toward the flowline connection tool, the terminal head being connected to the flowline and to the flowline connection tool having an upwardly extending leg terminating in a connector hub; maintaining the flowline terminal head in an upright position during pulling by attaching buoyancy means to an upper side of the flowline terminal head; connecting the flowline terminal head to the flowline connection tool; engaging the connector hub of the flowline terminal head with a hub receptacle of the flowline connection tool and moving the flowline connection tool and flowline terminal head downwardly and forming an interlocking joint between the flowline connection tool and the subsea structure; disconnecting the flowline terminal head from the flowline connection tool; and recovering the flowline connection tool to the surface.
- Assignee:
- Shell Oil Co., Houston, TX
- Patent Number(s):
- US 4615646
- OSTI ID:
- 5164750
- Country of Publication:
- United States
- Language:
- English
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