Offshore deck to substructure mating system and method

Details Offshore deck to substructure mating system and method Offshore deck to substructure mating system and method

1992-04-24

1993-06-15

Taylor, Dennis L.

Hydraulic and earth engineering

Marine structure or fabrication thereof

Floatable to site and supported by marine floor

405203, 405209, E02D 2500

Patent

active

052194515

ABSTRACT:
An offshore deck or platform unit is provided with depending legs having shock absorbing stabbing tip assemblies for engagement with the upstanding columns of a marine substructure to transfer the weight of the deck to the substructure by positioning the deck relative to the substructure with a barge and ballasting down the barge to move the deck into engagement with the substructure. The barge also carries a deck support structure comprising plural sand jack assemblies which provide for disengagement of the barge from the deck. The stabbing tip assemblies include coaxially arranged primary locating pins which are dropped into position to hold the location of the deck relative to the columns and annular resilient collars for transferring vertical and lateral shock loads between the columns and the deck during the transfer process. Final steel-to-steel engagement of the deck legs with the columns and final disconnection of the vessel from the deck is carried out by actuation of sand jacks which are interposed between the stabbing tip assemblies and the columns and between the deck and deck support structure on the barge.

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