Pressure balanced choke and kill line connector

Wells – Submerged well – Connection or disconnection of submerged members remotely...

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Details

166338, 166344, 166368, E21B 712

Patent

active

060893214

ABSTRACT:
A pressure balanced connector is provided for connecting a choke and kill line to a subsea wellhead. The connector bears the separation forces applied by the line pressure with a pressure balancing chamber that is in constant fluid communication with the choke and kill line. The forces applied on the pressure balancing chamber hold a latching mechanism for the connector in place on the wellhead. The latching mechanism does not require precise positioning with the wellhead to make the connection.

REFERENCES:
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patent: 3325190 (1967-06-01), Eckert et al.
patent: 3330341 (1967-07-01), Jackson et al.
patent: 3746372 (1973-07-01), Hynes et al.
patent: 3870345 (1975-03-01), Liautaud
patent: 4478287 (1984-10-01), Hynes et al.
patent: 4589493 (1986-05-01), Kelly et al.
patent: 4593937 (1986-06-01), Schawann et al.
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patent: 4668126 (1987-05-01), Burton
patent: 4823878 (1989-04-01), Brammer et al.
patent: 4987956 (1991-01-01), Hansen et al.
patent: 5634671 (1997-06-01), Watkins
Cameron Product Catalog, "Subsea Drilling Systems", date unknown, p. 365, Houston, TX.
Cameron Composite Catalog of Oil Field Equipment and Services, "Collet Connectors", 1996-97, pp. 379-380, Houston, TX.
Cameron Schematic, "Choke and Kill Line Collet Connector", date unknown, pp. 1-15-1-19.
Coflexip Stena Offshore Group, "Drilling and Service Applications", date unknown, p. 544.
FMC Fluid Control Division, "Dynetor Connectors", date unknown, p. 6.
Illustrated Petroleum Reference Dictionary, 4th Ed., 1994, p. 237.
Hydril Drawing #3106486, "Choke and Kill Stub Assy--Lower Marine Riser", Sep. 23, 1985.
PCT/US99/05152; International Search Report; Jun. 28, 1999.

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