High reliability, low cost electronics in oil for subsea applications

1 . An arrangement, comprising:

a shell comprising an internal volume, the shell having a first end and a second end;

oil disposed in the internal volume;

an electrical connection end connected to the first end of the shell, the electrical connection end configured to transmit electricity and signals;

an electronics rack extending centrally within the internal volume such that a majority of the oil radially surrounds the electronics rack between the electronics rack and the shell, the electronics rack configured to support electrical equipment, wherein:

the electronics rack comprises a first elongate member extending longitudinally through the internal volume from the first end to the second end and a second elongate member extending longitudinally through the internal volume from the first end to the second end; and

the electrical equipment comprises a plurality of spaced apart electrical components extending between and coupled to the first elongate member and the second elongate member; and

an end cap positioned at the second end of the shell, wherein a combination of the shell, the electrical connection end, and the end cap is configured to store the oil within the combination, wherein the electronics rack is configured to at least one of provide the electricity from the electrical connection end and send and receive the signals to electronics stored on the electronics rack.

2 . The arrangement according to claim 1 , wherein the shell comprises carbon steel.

3 . The arrangement according to claim 1 , wherein the shell comprises metallic materials.

4 . The arrangement according to claim 1 , wherein the shell comprises titanium.

5 . An arrangement, comprising:

a shell comprising an internal volume, the shell having a first end and a second end;

oil disposed in the internal volume;

an electrical connection end connected to the first end of the shell, the electrical connection end configured to transmit electricity and signals;

an electronics rack positioned within the internal volume, the electronics rack configured to support electrical equipment, wherein:

the electronics rack is centrally positioned within the internal volume such that a majority of the oil is disposed between the electronics rack and the shell;

the electronics rack comprises a first elongate member extending longitudinally through the internal volume from the first end to the second end and a second elongate member extending longitudinally through the internal volume from the first end to the second end; and

the electrical equipment comprises a plurality of spaced apart electrical components extending between and coupled to the first elongate member and the second elongate member; and

an end cap positioned at the second end of the shell, wherein a combination of the shell, the electrical connection end, and the end cap is configured to store the oil within the combination.

6 . The arrangement according to claim 5 , wherein the shell comprises carbon steel.

7 . The arrangement according to claim 5 , wherein the shell comprises a metallic material.

8 . The arrangement according to claim 5 , wherein the shell comprises titanium.

9 . The arrangement according to claim 5 , wherein the electronics rack is configured to at least one of provide the electricity from the electrical connection end or send and receive the signals to electronics stored on the electronics rack.

10 . The arrangement according to claim 5 , wherein the first elongate member and the second elongate member extend across an entirety of the internal volume between the first end and the second end.

11 . The arrangement according to claim 5 , wherein the first elongate member extends substantially parallel to the second elongate member.

12 . The arrangement according to claim 10 , wherein the first elongate member is spaced apart from the second elongate member.

13 . A method, comprising:

obtaining a shell comprising a first end and a second end;

installing electrical equipment on an electronics rack within the shell, wherein:

the electronics rack comprises a first elongate member extending longitudinally from the first end to the second end and a second elongate member extending longitudinally from the first end to the second end; and

the electrical equipment comprises a plurality of spaced apart electrical components extending between and coupled to the first elongate member and the second elongate member;

installing an end cap at the second end of the shell;

installing an electrical connection end at the first end of the shell; and

filling the shell with oil, a majority of the oil radially surrounding the electrical equipment between the electrical equipment and the shell.

14 . The method according to claim 13 , wherein the oil is configured to at least one of cool or protect the electrical equipment installed within the shell.

15 . The method according to claim 13 , wherein the electrical connection end is configured to transmit electrical energy to the electrical equipment within the shell.