US 12,454,803 B2
Subsea wellhead foundation
Brynjulf Spalder, Asker (NO); and Rolf Barfod Schueller, Droebak (NO)
Assigned to ONESUBSEA AS, Lysaker (NO)
Appl. No. 18/567,369
Filed by AKER SOLUTIONS SUBSEA AS, Lysaker (NO)
PCT Filed Jun. 7, 2022, PCT No. PCT/NO2022/050128
§ 371(c)(1), (2) Date Dec. 6, 2023,
PCT Pub. No. WO2022/260529, PCT Pub. Date Dec. 15, 2022.
Claims priority of application No. 20210741 (NO), filed on Jun. 8, 2021.
Prior Publication US 2024/0271383 A1, Aug. 15, 2024
Int. Cl. E02D 27/52 (2006.01); E21B 33/035 (2006.01)
CPC E02D 27/525 (2013.01) [E21B 33/035 (2013.01); E02D 2250/0053 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A subsea foundation for installation on a sea floor, the subsea foundation comprising:
a receptacle which is configured to receive a wellhead housing; and
a conductor pipe which is arranged to extend from the receptacle and which is configured to receive a well pipe therethrough, the conductor pipe comprising,
a first section comprising a first end and a second end,
a second section, and
a hinge joint arranged between the first section and the second section of the conductor pipe, the hinge joint being configured to enable a pivotal connection therebetween,
wherein,
the first section is connected to the receptacle at the first end and is pivotably connected to the second section at the second end via the hinge joint so that the conductor pipe is configurable between a compact configuration, in which the conductor pipe comprises a bend therein, and an extended configuration, in which the conductor pipe is substantially straight.