Riser for great water depths

Details Riser for great water depths Riser for great water depths

1995-11-03

1997-08-26

Bagnell, David J.

Wells

Submerged well

Riser

4051951, 4052242, E21B 1701, E21B 1909

Patent

active

056602332

ABSTRACT:
A riser for great water depths includes a main tube, peripheral lines, and a base at the lower end of the main tube. The main tube has devices for holding the peripheral lines in position with respect to the main tube. The lower end of each of the peripheral lines is connected with another device placed on the base allowing axial relative movement of at least one of the peripheral lines with respect to the main tube. Also, the riser is provided with a damping device.

REFERENCES:
patent: 4142584 (1979-03-01), Brewer et al.
patent: 4194568 (1980-03-01), Buresi et al.
patent: 4391332 (1983-07-01), Fayren
patent: 4397357 (1983-08-01), Hettinger
patent: 4423983 (1984-01-01), Dadiras et al.
patent: 4593937 (1986-06-01), Schawann et al.
14th Annual OTC -4317, May 6, 1982, Houston, Texas, pp. 210-211 C.P. Sparks, "Longitudinal Resonant Behavior of Very Deep Water Risers" Entire Document.

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