The present invention relates to a wire cutting system and method for subsea cutting of large structures (6). The system includes two feeding towers (2) with feeding tower first ends secured into a seabed floor. A crossbeam (1) is located between the two feeding towers (2). Wire feeding trolleys (8) are connected to the feeding towers (2), whereby the wire feeding trolleys (8) are allowed to move a cutting distance along the feeding towers. A cutting wire (4) traverses between the wire feeding trolleys.

A support device configured to be positioned on a lifting vessel in order to support a topside of an offshore platform, the support device comprising: a main cylindrical casing having an upper opening, the main casing defining a main vertical axis, the main casing further defining an upper support rim, a reservoir located inside the main casing for holding a granular material or a fluid, the reservoir having a discharge opening for emptying the reservoir, a spring support slideably arranged within the main casing, the spring support resting on the granular material or the fluid and being movable from an upper position to a lower position in dependence on a filing degree of the reservoir, a spring device positioned on the spring support, a receptor support positioned on the spring device, the receptor support defining an upper surface, and a receptor device.

Some embodiments include an apparatus for cutting a pile. In some embodiments, the apparatus includes a shaft module including a cylindrical shaft including a first cavity configured to receive the pile. In some embodiments, the apparatus also includes a cutting module coupled to the shaft module, the cutting module including a second cavity configured to receive the pile, clamps configured to clamp onto the pile, and a saw configured to cut the pile. In some embodiments, the apparatus also includes a drilling module coupled to the cutting module, the drilling module including blades to burrow into an earth surface.

A method and apparatus for angularly drilling during a tapping procedure into a pressurized multiple strings of coaxially situated tubulars for wells and/or platforms which have overturned wherein the tapping occurs underwater via a diver or remotely operated vehicle.

A method and apparatus for tapping into a pressurized multiple strings of coaxially situated tubulars for wells and/or platforms which have overturned wherein the tapping occurs underwater via a diver or remotely operated vehicle. The assembly includes a tapping tool connectable to the tubular via a saddle connection and an adjustable tapping clamp with adjustable support/locking feet, compression plate with view ports, and angularly adjustable hot tapping system, along with a drill/saw system.

A method is provided for removing an abandoned marine platform from a seabed. The platform extends below the seabed mud line. In order to remove the platform, a frame is provided having a perimeter that surrounds an open center. The frame is lowered over the platform wherein the platform occupies the open center portion. A movable cutter cable is fitted to the frame. At least a part of the cutter cable is positioned below the mud line. The cutter is moved relative to the frame to cut the platform below the mud line. Such movement can be a back and forth movement wherein the cutter cable moves in a first direction, stops and then moves in a second direction that is generally opposite the first direction. A lifting device can employ two vessels and two frames, each frame bridging from one vessel to the other. Winches on the vessel can be used to provide movement to the cutter cable. These same winches can take up cable slack as cutting moves from one platform member (e.g. leg, jacket leg, piling, etc) to another.

Example embodiments relate to apparatuses, systems, and methods for securing an offshore platform to a bottom of a body of water comprising a shear assembly and a sleeve assembly. The shear assembly is operable to secure to the offshore platform at a first end and having a first connector portion at a second end. The sleeve assembly comprises a sleeve body forming an interior opening, the interior opening operable to receive at least a pile. The sleeve assembly further comprises a second connector portion secured to the sleeve body, the second connector portion securable to and un-securable from the first connector portion of the shear assembly.

The present disclosure generally relates to movable offshore platforms for installing wind turbines, and methods of forming the same. The movable offshore platforms are offshore platforms which were previously used in hydrocarbon production, such as jack-up units. The movable offshore platforms may be decommissioned and retrofitted with equipment for installing wind turbines. The movable offshore platforms may be American-made or otherwise Jones Act compliant. Methods of forming the same are also included.

There is provided high power laser systems, high power laser tools, and methods of using these tools and systems for cutting, sectioning and removing structures objects, and materials, and in particular, for doing so in difficult to access locations and environments, such as offshore, underwater, or in hazardous environments, such as nuclear and chemical facilities. Thus, there is also provided high power laser systems, high power laser tools, and methods of using these systems and tools for removing structures, objects, and materials located offshore, under bodies of water and under the seafloor.

A subsea vessel includes filler material, which may be enclosed by an outer shell and may provide the vessel with a density for floatation. Exemplary applications for the vessels include buoyancy and tanks to hold fluids for operations subsea. The filler may include thermoplastic materials and/or concrete, which may be formed to create internal void spaces.