Disclosed are systems and methods for thermal management of subsea conduits such as jumpers that provide the ability to alternate between cooling and heat retention of production fluids within the conduit as needed depending on the phase of operation. Adjustable insulation elements are provided on the conduits so that convective heat transfer between surrounding seawater and the conduit can be allowed or reduced. A control system can activate an alarm indicating the need to adjust the insulation depending on the temperature and/or flow rate of fluids in the conduit. Conventional conduits can be retrofitted by adding adjustable insulation elements to enable thermal management.

A system to be used with one or more well slots in an oil and gas operation is disclosed. At least one manifold is associated with the one or more well slots and with first passage-ways for the one or more well slots. An intervention subsystem includes second passage-ways and a path selector valve. The path selector valve is selectable to associate together at least two of the second passage-ways, which enables a maintenance action to be performed for an intended well slot of the one or more well slots.

Embodiments of the invention provide apparatus and method for seabed resources collection. The apparatus comprises a main module and a plurality of seabed resources collecting devices releasably attached to the main module, wherein the main module and the plurality of collecting devices are configured to be launched from a surface vessel towards a seabed; the main module includes a control module which is configured to determine a mining path for each of the collecting devices based on characteristics of the seabed, control each of the collecting devices to collect seabed resources along the determined mining path and control transfer of the seabed resources collected by the collecting devices, wherein each collecting device is configured to be released from the main module after the apparatus is launched, and to collect seabed resources along the mining path determined by the main module after being released.

A method for evaluating a securing system for a floating structure, where the method includes collecting a plurality of metocean data from a plurality of metocean sensor devices during a current time period coinciding with a field operation, where the field operation is conducted from the floating structure that is stabilized by the securing system. The method can also include evaluating the metocean data using a plurality of algorithms. The method can further include determining, based on evaluating the metocean data, a condition of the securing system at the current time period.

A method for evaluating a securing system for a floating structure, where the method includes collecting a plurality of metocean data from a plurality of metocean sensor devices during a current time period coinciding with a field operation, where the field operation is conducted from the floating structure that is stabilized by the securing system. The method can also include evaluating the metocean data using a plurality of algorithms. The method can further include determining, based on evaluating the metocean data, a condition of the securing system at the current time period.

A pig diverter comprises a hollow housing having a flowline inlet port, a flowline outlet port, a pig entry opening, and a pig exit opening, all communicating with the interior of the housing. A tubular pig holder enclosed by the housing is pivotable between a receiving position and a launching position. In the receiving position, the pig holder is aligned with the pig entry opening to receive a pig and effects fluid communication between the pig entry opening and the flowline outlet port. In the launching position, the pig holder is aligned with the pig exit opening to launch a pig and effects fluid communication between the flowline inlet port and the pig exit opening.

A pig diverter comprises a hollow housing having a flowline inlet port, a flowline outlet port, a pig entry opening, and a pig exit opening, all communicating with the interior of the housing. A tubular pig holder enclosed by the housing is pivotable between a receiving position and a launching position. In the receiving position, the pig holder is aligned with the pig entry opening to receive a pig and effects fluid communication between the pig entry opening and the flowline outlet port. In the launching position, the pig holder is aligned with the pig exit opening to launch a pig and effects fluid communication between the flowline inlet port and the pig exit opening.

A retrievable connection module for establishing a fluid flow between a subsea station and a subsea flow line. The connection module includes a first fluid port, a first connection profile, a second fluid port, a second connection profile, and a utility arrangement which alters or monitors an aspect or a characteristic of the fluid flow between the first and the second fluid ports. The first connection profile is releasably couplable to a flow line to permit a fluid communication between the flow line and the first fluid port. The second connection profile is releasably couplable to the subsea station to permit a fluid communication between a subsea well and the second fluid port. The first connection profile disconnects the flow line and restricts the fluid communication at the first fluid port. The second connection profile disconnects from the subsea station and restricts the fluid flow at the second fluid port.

An offshore assembly to operate a facility, in particular an underwater oil and gas production facility, has: a semi-submersible support structure arranged in a body of water and having at least one tubular portion; a wind turbine to generate electricity and equipped with a tower, a nacelle and a blade assembly; and at least one back-up power source mounted on the semi-submersible support structure to generate electricity; a plurality of compartments stacked on top of each other within the tubular portion, in which each of the compartments is dedicated to housing respective equipment to perform respective functions; and a cooling and ventilation system to cool and ventilate the plurality of compartments.

An offshore assembly to operate a facility, in particular an underwater oil and gas production facility, has: a semi-submersible support structure arranged in a body of water and having at least one tubular portion; a wind turbine to generate electricity and equipped with a tower, a nacelle and a blade assembly; and at least one back-up power source mounted on the semi-submersible support structure to generate electricity; a plurality of compartments stacked on top of each other within the tubular portion, in which each of the compartments is dedicated to housing respective equipment to perform respective functions; and a cooling and ventilation system to cool and ventilate the plurality of compartments.