Hydraulic and earth engineering – Marine structure or fabrication thereof – Floatable to site and supported by marine floor
Patent
1992-03-16
1994-03-01
Reese, Randolph A.
Hydraulic and earth engineering
Marine structure or fabrication thereof
Floatable to site and supported by marine floor
405201, 405196, E02D 2500
Patent
active
052901289
ABSTRACT:
A skidbase 16 and a drilling structure 18 are adapted for transfer between a jack-up platform 12 and a fixed platform 14. The jack-up platform 12 is moved into position adjacent the fixed platform 14 and raised to a height aligned with the fixed platform 14. The skidbase 16 is then transferred onto the fixed platform 14 to provide a base on which the drilling structure 18 is next placed. The jack-up platform 12 is raised to a vertical height aligned with the skidbase 16. To ensure proper location of the top surface of the jack-up platform 12 relative to the skidbase 16, a connection means 47 automatically engages and aligns the jack-up platform 12 with the skidbase 16 so that skid rails 32, 44 located on the deck of the jack-up platform 12 and on a top surface of the skidbase 16 are positioned a precise distance apart and at the same vertical height. The drilling structure 18 is then skidded onto the skidbase 16 so that drilling operations may be performed from the fixed platform 14. The connection means 47 takes the form of a multi-dimension blade member 128 affixed to the skidbase 16. The blade member 128 progressively engages a series of guide members 122, 124 on the jack-up platform 12 and, thereby, progressively and stagewise aligns the skidbase 16 as the jack-up platform 12 is moved to its desired vertical height.
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Shipbuilding and Shipping Record, vol. 119, No. 19, 1972, pp. 29-30, "A New Concept for Moving Heavy Loads".
McNease Daniel F.
Moody Michael D.
Yeargain Charles W.
McBee J. Russell
Reese Randolph A.
Rowan Companies, Inc.
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