Flexible workover riser system

Details Flexible workover riser system Flexible workover riser system

1979-08-13

1981-08-04

Purser, Ernest R.

Wells

Submerged well

Connection or disconnection of submerged members remotely...

166362, 166366, E21B 3404

Patent

active

042817161

ABSTRACT:
This describes a method of performing operations in a well selected from a group or cluster of subsea wells which are produced through a production riser means to production facilities on a floating platform. There is provided a flexible workover riser on the platform which extends through a passage on the platform at a location remote from the moon pool for the production riser means. The flexible workover riser is run through said passage and guided into connection with the production tubing in the subsea well. Wireline or other well operations are then conducted through the connected flexible workover riser from the floating platform.

REFERENCES:
patent: 3421581 (1969-01-01), Van Geijn
patent: 3516488 (1970-06-01), Joubert et al.
patent: 3602302 (1971-08-01), Kluth
patent: 3789921 (1974-02-01), DeChassy et al.

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