Undersea template for the drilling of wells for the exploitation of hydrocarbon pools under the sea
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United States of America Patent
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Aug 18, 1987
Grant Date -
N/A
app pub date -
Apr 13, 1984
filing date -
Apr 18, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to an undersea template for the drilling of wells for the exploitation of hydrocarbon pools under the sea, which template is of variable dimensions and form so as to be able to adapt to any spacing and number of wells, and which is anchored to the seabed by mooring piles and provided with suitable well slots, characterized by the fact that the vertical restraint between the template and the well slots, or between the well slots and the anchorage column of the drill, or between the template and its mooring piles, consists of a flexible member which allows the weight bearing on the template to be reduced to the sole weight of the anchorage columns, with consequent weight reduction of the template itself. The template, moreover, is provided with a particular system of levelling acting between the mooring piles and the respective well slots which allows the template to be installed on beds of any kind since the levelling system in question consists of movement devices which can be positioned inside or outside the said piles, or on the well slots or on the template, provided they act between the template and the relative mooring piles so as to allow the necessary levelling to be made.
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