Method and system for producing hydrocarbons from a tension-leg

Wells – Submerged well – Means removably connected to permanent well structure

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166358, E21B 7128

Patent

active

056974469

ABSTRACT:
The present invention relates to a method and to a system for producing hydrocarbons from marginal offshore fields. The invention includes a baseplate (2) fastened to the bottom and a small-size floating support (9) anchored to the baseplate by tendons (10). The baseplate comprises locations (31) for wellheads (7,8) and at least one receptacle (22,32) for a pumping device (21). The floating support comprises hoisting device allowing workover operations in the wells and maintenance operations on the pumping device to be performed.

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patent: 4913238 (1990-04-01), Danazcko et al.
patent: 5226482 (1993-07-01), Giannesini et al.
patent: 5526882 (1996-06-01), Parks et al.

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