Multi-purpose well head equipment

Details Multi-purpose well head equipment Multi-purpose well head equipment

1990-02-22

1991-04-09

Novosad, Stephen J.

Wells

Submerged well

Connection or disconnection of submerged members remotely...

166339, 166342, 166349, 294 8633, 405195, 405224, E02D 574, E21B 2304, E21B 33038, E21B 4301

Patent

active

050056506

ABSTRACT:
A guide base for a sub-sea well is formed in two parts, an annular portion fixed to a conductor housing and a retrievable portion surrounding and releasably attached to the annular portion. The retrievable portion can be recovered and used elsewhere if a well is suspended or abandoned or changed for another type of guide base after drilling and before completion. A trawler board deflector can also replace the retrievable guide base portion, and a retrievable protective cap may be placed on the well head housing of a suspended well. A hydraulically-operated multi-purpose tool may be used for placing or retrieving any of the retrievable items.

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patent: 4611661 (1986-09-01), Hed et al.
patent: 4867605 (1989-09-01), Myers et al.
patent: 4881850 (1989-11-01), Abreo

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