Subsea electric power and communication module

• Main Authors: Nicolaysen, Vidar, Mathisen, Stig Fredrik, Magnus, Heyn Halfdan, Skrivervik, Egil Mulstad
• Format: Patent
• Language: English
• Published: 01.04.2021
• Subjects: CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FIXED CONSTRUCTIONS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PRINTED CIRCUITS

The present invention relates to a subsea electric power and communication module (10) for controlling a subsea module (2) of a subsea oil/gas installation (1). The module (10) comprises a housing (20), a first outer connector (30) provided outside of the housing (20), where the first outer connectors (30) is configured to be connected to a subsea module (2), and a control device (80) comprising electric power supply circuitry (80a) and/or communication circuitry (80b) provided within the pressure sealed compartment (25). A penetrator device (50) is connected between the first outer connector (30) and the control device (80). The penetrator device (50) comprises a printed circuit board (51), a first sealing device (53) and a second sealing device (56) for sealing off a first area (A53) and a second area (A56) of the printed circuit board (51). The first area (A53) is faced towards the main compartment (25), while the second area (A56) is faced towards a pressure balanced compartment (46) between the pressure sealed main compartment (25) and an outside environment (OE) of the housing (20). A first inner connector (C80) is connected to the first area (A53) of the printed circuit board (51), where the first inner connector (C80) is further connected to the control device (80). A second inner connector (C3x) is connected to the second area (A56) of the printed circuit board (51), where the second inner connector (C3x) is further connected to the outer connector (30). Conductive tracks (52a) are provided on the printed circuit board (51) between the first inner connector (C80) and the second inner connector (C3x).