A lower stack assembly of a blowout preventer for a hydrocarbon extraction well includes a safety function that can be hydraulically activated to rapidly cut off a pipeline section. The assembly includes a first valve and a first fluidic connection connecting the first valve and the least one safety function, so that the first valve selectively cuts off a flow of fluid directed towards the safety function. The assembly further includes a port operatively connected to the first valve, cooperating with a remotely operated vehicle to transmit a pilot signal to the first valve, an accumulator housing pressurized fluid, and a second fluidic connection. By cooperating with the first valve, the accumulator supplies pressurized fluid to the safety function to activate it. The second fluidic connection connects the accumulator and the first valve, so that the second fluidic connection remains operative during the entire working life of the assembly.

A well production system comprises a safety instrumented system (SIS) having one or more logic solvers; one or more pressure transmitters disposed along a flowpath and communicatively coupled to the one or more logic solvers; one or more valves disposed along the flowpath and communicatively coupled to the SIS, wherein the SIS is configured to selectively actuate the one or more valves based on feedback from the one or more pressure transmitters; and a spare pressure transmitter disposed along the flowpath, wherein the spare pressure transmitter is configured to be selectively coupled to the one or more logic solvers.

A system includes a bridge seal assembly configured to form a seal within mineral extraction equipment. The bridge seal assembly includes an annular bridge seal having an accordion-shaped body portion with a plurality of folded portions. Each of the plurality of folded portions extends circumferentially about the annular bridge seal, and the plurality of folded portions are configured to enable the annular bridge seal to expand and contract with the mineral extraction equipment to maintain the seal. The bridge seal assembly also includes a reaction ring and one or more wedge rings configured to be inserted between the annular bridge seal and the reaction ring to actuate the annular bridge seal.

A machine includes a spindle for storing wire, a wire passage structure having an interface coupline, a controllable drive system, a control system, and a pressure-resistant housing. The drive system is configured to feed the wire through the wire passage structure and through the interface coupling, under the control of the control system. The housing encloses the wire passage structure, the controllable drive system, and at least a portion of the control system.

A machine includes a spindle for storing wire, a wire passage structure having an interface coupline, a controllable drive system, a control system, and a pressure-resistant housing. The drive system is configured to feed the wire through the wire passage structure and through the interface coupling, under the control of the control system. The housing encloses the wire passage structure, the controllable drive system, and at least a portion of the control system.

A resident remotely operated vehicle may be deployed subsea by deploying a remotely operated vehicle (ROV) (200) configured to be disposed and remain resident subsea for an extended time where the ROV comprises an ROV electrical power connector port (202) to be operatively connected to an electrical power supply (700) dedicated to the ROV. An RTMS configured to be disposed subsea for an extended time is also deployed subsea (210), typically proximate the ROV. A subsea docking hub subsea is also deployed subsea proximate the RTMS and operatively connected to the ROV and the RTMS. In addition, an umbilical is connected from the subsea docking hub to a subsea structure and a signal supplied from the subsea structure to the ROV.

A fluid sampling and measuring assembly has: a sampling and measuring module configured to sample and analyse a fluid sample; a picking module configured to contain the fluid sample; at least one navigation module configured to navigate in the body of water; and at least one interface module configured to hydraulically connect a sampling station, the sampling and measuring module and the picking module. The sampling and measuring module and the picking module are configured to be mechanically and hydraulically coupled to each other and to the sampling station to take and analyse the fluid sample and the picking module is configured to be coupled to the navigation module to transfer the fluid sample to an analysis laboratory.

A technique utilizes spatially resolved temperature measurements to infer the temperature of a subsea infrastructure. According to an embodiment, temperature data, e.g. a temperature map, is determined for the subsea infrastructure and comprises performing remote temperature measurements of water surrounding the subsea infrastructure. Additionally, a metrological scan of the subsea structure may be obtained. Furthermore, a simulation or simulations may be run for an assumed temperature profile along a surface of the subsea infrastructure. The data obtained from the remote temperature measurements, the metrological scan, and the simulation is processed to determine a temperature profile of the subsea infrastructure. This temperature profile can then be used to facilitate a variety of subsea infrastructure management decisions.

A technique utilizes spatially resolved temperature measurements to infer the temperature of a subsea infrastructure. According to an embodiment, temperature data, e.g. a temperature map, is determined for the subsea infrastructure and comprises performing remote temperature measurements of water surrounding the subsea infrastructure. Additionally, a metrological scan of the subsea structure may be obtained. Furthermore, a simulation or simulations may be run for an assumed temperature profile along a surface of the subsea infrastructure. The data obtained from the remote temperature measurements, the metrological scan, and the simulation is processed to determine a temperature profile of the subsea infrastructure. This temperature profile can then be used to facilitate a variety of subsea infrastructure management decisions.

The present invention relates to a locking mechanism or tool adapted for connection to a remotely operated vehicle and adapted for at least one of the group consisting of connection and disconnection of two plates. The present invention also concerns a system adapted for at least one of the group consisting of connection and disconnection of two plates, where the system comprises said locking mechanism or tool.