Abstract: A system for field internally coating a pipe joint comprising a polymer application unit, which has a first cart configured to selectively advance inside a pipe; a first and a second tank configured to contain a first and a second polymer component respectively; a mixer to mix the first and the second component; a first and a second pump to feed the first and the second component respectively from the first and the second tank to the mixer, an applicator to apply the polymer to the pipe; and a conduit comprising a free end configured to be placed near the applicator to feed the polymer from the mixer to the applicator.

Abstract: A machine for applying at least one cable to a pipeline comprises: a frame extending along a longitudinal axis; a gripping and moving device mounted on the frame and configured to couple the machine around the pipeline and move the machine along the pipeline in a travel direction parallel to the longitudinal axis; and a cable application equipment comprising a rotating open ring structure, which is configured to rotate with respect to the frame and around the pipeline when the machine is gripping the pipeline; and an unwinding device for the controlled unwinding of a reel of cable; unwinding device being mounted on rotating open ring structure.

Abstract: A process for regasifying a fluid and generating electrical energy includes subjecting an operating fluid to 1) pumping, the pumping step including a low pressure pumping step 1a) and a high pressure pumping step 1b), 2) heating in a recuperator to obtain a heated flow, the heating step including a low temperature heat recovery step 2a) and a high temperature heat recovery step 2b), 3) further heating through a high temperature source to obtain a further heated flow, 4) expanding in a turbine, with generation of electrical energy to obtain an expanded flow, 5) cooling by heat exchange to obtain a cooled flow, and 6) condensing the flow of the operating fluid and regasifying the fluid. After low pressure pumping, a portion of the flow of the operating fluid is subjected to recompression to obtain a flow combined with the flow of the operating fluid obtained from step 2a).

Abstract: An apparatus for joining elongated elements in a body of water has a frame; a strap feeding device; two arms movable with respect to the frame and configured to guide a strap around the elongated elements; a clamping device, configured to retain an end portion of the strap; a driving device configured to advance and tighten the strap around the elongated elements; a junction device, configured to join two overlapping portions of the strap so as to close the strap around the elongated elements; and a cutting device configured to separate the strap upstream of the joined portion.

Abstract: A method for compensating the bathymetric pressure inside a subsea tank containing a liquid working fluid by using a bathymetric compensation fluid is provided. The liquid working fluid and the bathymetric compensation fluid are separated from each other by a separation layer of a separation fluid.

Abstract: A connector for a pipeline, in particular for conveying hydrocarbons, extends along a longitudinal axis and has a gripping portion configured to be fitted around and clamped to the outer face; a sleeve portion, which is mounted in sliding manner to the gripping portion; a metal front gasket configured to be placed between the front end face and a face of the sleeve portion; and linear actuators connected with the gripping portion and the sleeve portion to axially compress the metal front gasket between the front end face of the pipeline and the face of the sleeve portion.

Abstract: A riser termination connects a steel riser duct to an I-tube or J-tube connecting interface of a floating unit, and includes an upper hang off portion, lower coupling adapter, steel termination conduit having an upper conduit end connected to the upper hang off portion and a lower conduit end connected to the steel riser duct. The termination conduit extends axially slidable through the coupling adapter. A circular cylindrical bearing seat is formed inside the coupling adapter and defines a bearing seat diameter, a bearing body having a bearing body diameter and protruding outward from the termination conduit inside the bearing seat. The bearing body diameter is smaller than the bearing seat diameter. A gap between the bearing body and the bearing seat allows relative sliding and rotation. The termination conduit includes a variable cross-section conduit portion having a diameter and wall thickness decreasing from the bearing body.

Abstract: A riser termination connecting a steel riser duct to an I-tube or J-tube connecting interface of a floating unit has an upper hang off portion, lower coupling adapter, steel termination conduit having an upper conduit end rigidly connected to the upper hang off portion, and lower conduit end connected to an adjacent conduit section of the riser duct. The termination conduit extends axially slidable through the coupling adapter. A cylindrical bearing seat inside the coupling adapter defines a bearing seat diameter and axis. An annular rounded bearing body has a bearing body diameter and protrudes outward from the termination conduit inside the bearing seat, the bearing body diameter being smaller than the bearing seat diameter to provide a unilateral gap and allow relative axial sliding and rotation. The termination conduit includes a variable cross-section portion having an external diameter and wall thickness tapering from the bearing body.

Abstract: An anti-collision method includes storing information on a current position of at least one vehicle within a target work volume, scanning the target work volume by a radiofrequency radiation signal to detect the presence of at least one human operator within the target work volume, determining the current position of the at least one human operator within the target work volume, comparing the current position of the at least one human operator with the current position of the at least one vehicle, and, if the current position of the at least one human operator at least partially overlaps the current position of the at least one vehicle, activating at least one safety device.

Abstract: A method for lifting a payload of an offshore platform is provided. The offshore platform comprises a support structure supporting the payload. The payload includes a main deck and a column directly connected to the support structure, the column supporting the main deck. The method includes coupling a plurality of tension rods to a lower lifting device, having a welding surface weldable to a welding portion of the column and an upper lifting device having a coupling interface such that the plurality of tension rods connect the lower lifting device and the upper lifting device. The plurality of extendable tension rods can extend along a rod direction between the lower lifting device and the upper lifting device to separate the payload from the support structure. At least some of the tension rods of the plurality of tension rods are pre-tensioned to exert a compressive action to the payload.

Abstract: An offshore assembly to operate a facility, in particular an underwater oil and gas production facility. The offshore assembly 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. The offshore assembly also has at least one back-up power source mounted on the semi-submersible support structure to generate electricity. A plurality of compartments are stacked on top of each other within the tubular portion. Each of the compartments is dedicated to housing respective equipment to perform respective functions, and a cooling and ventilation system cools and ventilates the plurality of compartments.

Abstract: A system for levelling and gripping a jacket leg into a hollow foundation pile has a levelling assembly for adjusting the longitudinal axis of a jacket leg partially inserted in a hollow foundation pile with an actuation group arranged about the jacket leg and configured to exert a force parallel to the longitudinal axis between the upper edge of the hollow foundation pile and the jacket leg and selectively attachable to the jacket leg and recoverable for further use in another levelling assembly; and a gripping assembly for locking the jacket leg in a designated position with respect to the hollow foundation pile once leveled.

Abstract: 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.

Abstract: A system for grit blasting an annular junction portion of a pipeline extending along a longitudinal axis on board a laying vessel, comprises at least one carriage configured to advance along an annular path about the pipeline; at least one centrifugal turbine, which is configured to project grit towards the pipeline, rotates about a rotation axis lying on a plane orthogonal to the longitudinal axis and is supported by the carriage; at least one feed device configured to feed the grit to the centrifugal turbine and comprising a hopper which extends along a respective axis, defines a feed chamber and is coupled to the respective carriage and a guide device configured to act in conjunction with the hopper to feed the grit to the centrifugal turbine at all the operating positions of the carriage.

Abstract: A multi-functional clamp for the installation of a wind turbine on an offshore substructure by a crane vessel equipped with a lifting crane, the multi-functional clamp having: a main body configured to selectively clamp and unclamp the lower part of the tower of a wind turbine and is shaped so as to couple with the crane vessel so as to define a given position for the tower with respect to the crane vessel; and a plurality of hooking members extending from the main body and configured to secure and release the free ends of a rigging assembly of the lifting crane to the main body so as to lift the multi-functional clamp by the lifting crane.

Abstract: A flame coating machine for coating field joints of a pipeline has a flame spray system having two flame spray units configured for heating and/or coating with a thermoplastic polymer an annular junction portion and two annular end portions of an existing coating delimiting the annular junction portion; a control system having two temperature sensors configured for acquiring temperature values along the surface collectively defined by the annular junction portion and the annular end portions, and a control unit configured for actuating the flame spray unit in a polymer flame spraying mode or in a flame heating mode as a function of the detected temperature values and at least one threshold value.

Abstract: A laying tower for laying pipelines on the bed of a body of water has a supporting structure extending along a longitudinal axis and provided with guides parallel to the longitudinal axis; a first clamp, which is mounted on the supporting structure and configured for selectively clamping and releasing the pipeline in a given point along the longitudinal axis; and a second clamp, which is selectively movable along a path, which extends along a first section above the first clamp; and a second section below the first clamp and, partly, below the supporting structure and configured for selectively clamping and releasing the pipeline along the path.

Abstract: A stability frame for the installation of a wind turbine on an offshore substructure, wherein the wind turbine comprises a tower configured to be anchored to a rigging assembly below the barycenter of the wind turbine, has a main body configured to be mounted about the upper part of the tower; and a plurality of guides, which extend outwardly from the main body and are configured for constraining parts of the rigging assembly so as to laterally support the wind turbine by the rigging assembly.

Abstract: A process for regasifying a fluid and producing electrical energy includes subjecting a working fluid to 1) high-pressure pumping, 2) heating in a recovery unit to obtain a heated flow, the heating step comprising a low-temperature heat recovery step 2a) and a high-temperature heat recovery step 2b), 3) further heating to obtain a further heated flow, 4) expanding in a turbine, with production of electrical energy, to obtain an expanded flow, 5) cooling in a recovery unit by heat exchange, in a step 5a) with the flow of step 2b) and in a step 5b) with the flow of step 2a) to obtain a cooled flow, 6) expanding with production of mechanical energy, and 7) condensing the flow of working fluid. After step 5), a portion of the flow of working fluid is not subjected to step 6) and is subjected to a recompressing step.

Abstract: An energy management system of a Remotely Operated Vehicle (“ROV”) has a generating unit located in a remote station on a water body and configured to generate a generated electrical power with a first maximum value); a ROV configured to operate in the water body and configured to absorb a second maximum value of an absorbed electrical power greater than the first maximum value; an electrical energy transmission line connected to the generating unit and to the ROV; and an electrical energy storage device located along the transmission line and/or on board the ROV.