Upper marine riser package

Details Upper marine riser package Upper marine riser package

1985-01-31

1987-12-15

Novosad, Stephen J.

Wells

Submerged well

Means removably connected to permanent well structure

166359, 166365, 166367, 285165, 285302, 405195, E21B 1701, E21B 33035

Patent

active

047126205

ABSTRACT:
An upper marine riser package (10/10A) comprising a diverter (D) for diverting uncontrolled gas and return drilling mud therethrough, a flexible joint FJ for allowing tilting motion between a vessel and a riser string (RS), a self-tensioning slip joint (SJ) and riser rotation bearing joint (RB) suspended below said vessel (V) to compensate for vertical motion between a subsea well (W) and a floating vessel (V). The upper marine riser package (10/10A) is sized to be run through a confined opening such as a riser handling spider (HS) and rotary table (RT) and to be suspended and operated below the deck of the vessel (V). The upper marine riser package can be used to eliminate the conventional riser tensioners normally above the platform and can be used in combination with such conventional riser tensioners normally above the platform for deeper and deeper drilling opertion. Two versions of the upper marine riser package (10/10A) ar disclosed, one (10) with an elastomeric bearing type flexible joint (FJ) and the other (10A) with a ball joint.

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