Abstract: A system and process for subsea fiberoptic logging of a well has a subsea structure having a central bore, an upper valve positioned in the central bore, a lower valve positioned on the central bore below the upper valve, and a subsea probe releasably connected to an upper connector of the subsea structure. The subsea structure has at least one channel adapted to connect to a downline. The upper valve is movable between an open position and a closed position. The lower valve is movable between an open position at a lower position. The channel opens to the central bore in an area between the upper valve and a lower valve. The subsea probe has a fiberoptic line connected thereto. The fiberoptic line is adapted to extend to a portion of the central bore of the subsea structure and into the well so as to sense parameters within the well.

Abstract: A subsea grease injection system has a grease accumulator containing a supply of grease, a hydraulic accumulator, a flowline connected to an outlet of the grease accumulator so as to allow discharge of grease from the supply to flow therethrough, and a subsea structure connected to the flowline. The hydraulic accumulator is in fluid communication with the grease accumulator such that the displacement of hydraulic fluid from the hydraulic accumulator causes a corresponding discharge of grease from the grease accumulator. The subsea structure receives grease from the flowline. The grease accumulator is a piston and cylinder in which the piston is received in the cylinder to define first and second compartments. The supply of grease is in the first compartment. The hydraulic fluid fills an interior of the second compartment. This avoids the use of hydraulic conduits from the surface such that only power and communications are from the surface.

Abstract: A subsea grease injection system has a grease accumulator containing a supply of grease, a hydraulic accumulator, a flowline connected to an outlet of the grease accumulator so as to allow discharge of grease from the supply to flow therethrough, and a subsea structure connected to the flowline. The hydraulic accumulator is in fluid communication with the grease accumulator such that the displacement of hydraulic fluid from the hydraulic accumulator causes a corresponding discharge of grease from the grease accumulator. The subsea structure receives grease from the flowline. The grease accumulator is a piston and cylinder in which the piston is received in the cylinder to define first and second compartments. The supply of grease is in the first compartment. The hydraulic fluid fills an interior of the second compartment. This avoids the use of hydraulic conduits from the surface such that only power and communications are from the surface.