Abstract: A system for providing power to subsea equipment includes: a subsea power supply; a subsea load operably coupled to the subsea power supply to selectively receive operational power from the subsea power supply; a subsea charger electrically coupled to the subsea power supply and configured to charge the subsea power supply, wherein the subsea charger includes a power converter comprising multiple silicon carbide (SiC) switches; and at least one power generation unit operably coupled to the subsea power supply charger.

Abstract: A method includes: outputting optical signals to a first optical fiber via a first interrogator, the first interrogator located at a topside/onshore location, the first interrogator configured to collect distributed acoustic sensor (DAS) and/or distributed temperature sensor (DTS) measurements; outputting optical signals to a second optical fiber via a second interrogator, the second interrogator located subsea, the second interrogator configured to collect DAS and/or DTS measurements; receiving optical signals from the second optical fiber via the first interrogator; receiving optical signals from the first optical fiber via the second interrogator; providing acoustic, temperature, and/or vibration sensing along a portion of the second optical fiber via the first interrogator based on the optical signals received from the second optical fiber; and providing acoustic, temperature, and/or vibration sensing along a portion of the first optical fiber via the second interrogator based on the optical signals recei

Abstract: A subsea fiber optic system, includes: an optical fiber for exchanging optical signals between a topside/onshore location and equipment at a subsea location; a modem located topside/onshore and coupled to the optical fiber and configured to exchange optical communications signals via the optical fiber, with another modem located subsea; a fiber optic booster or repeater located subsea at an interconnection point along the optical fiber, the fiber optic booster or repeater being configured to strengthen optical signals traveling through the optical fiber; and a power supply operably coupled to the fiber optic booster or repeater.

Abstract: Disclosed are fluid handling systems and methods for mitigating the effects of pressure drops that occur at the startup of subsea pumps associated with liquid producing reservoirs. The systems and methods are particularly useful in conjunction with subsea pumps used for producing liquids from high-pressure, low permeability hydrocarbon reservoirs. The systems and methods can mitigate damage to reservoir completions and reservoirs caused by high pressure transients downstream of the pump. A choke valve is used to restrict the flow of the liquids prior to the startup of the subsea pump. After the start of the subsea pump, the choke valve is gradually opened while a recirculation valve is gradually closed, and a full bore valve is opened.