Abstract: Modular transfigurable drilling rig system composed of multiple components, which system is transfigurable between a transport mode in which the components of the system are transportable and an operational mode in which the components are assembled to a drilling rig which is adapted to drill into a well centre in the ground.

Abstract: An offshore vessel suitable for laying a pipeline on the seabed, having a pipeline-laying installation of the S-lay type. The offshore vessel has one or more connecting stations disposed on a working deck. The connecting stations are for connecting pipeline sections in a substantially horizontal orientation. A stinger engages on a first side of a hull secured to offshore vessel at an engagement point and protrudes outside the hull, and forms a downwardly directed support for pipeline moving towards the seabed. A hoisting crane is disposed on the first side of the hull, comprising a substantially hollow vertical column comprising a top, a foot, and a body disposed between the foot and the body.

Abstract: A hoisting crane with an even reeving system having a substantially hollow vertical column, which has a foot a top and a body disposed between the foot and the top. An annular bearing structure disposed around the substantially hollow vertical column. A jib connection member disposed on the annular bearing structure and rotatable about the substantially hollow vertical column. A jib connected to the jib connection member.

Abstract: A hoisting crane having a substantially hollow vertical column with a body disposed between a foot and a top. A jib connected to the substantially hollow vertical column an annular bearing structure, extending around the substantial hollow vertical column guiding and carrying a jib connection member and rotatable about the substantially hollow vertical column. The jib connection member forms a substantially horizontal pivot axis the jib to pivot from the foot towards the top and from the top towards the foot.

Abstract: A method for hoisting including the acts of lowering a hoisting hook from a jib connected to a jib connection member secured to a hoisting crane having a substantially hollow vertical column. The substantially hollow vertical column has a foot and a top.

Abstract: The embodied mobile cranes have a travelling base structure that allows for travel of the crane over a surface. The cranes have a revolving superstructure mounted on the base structure and a boom and a backmast. The boom and backmast are each hinged about an associated pivot axis to horizontal the superstructure. The crane has a main load hoisting manner associated with the boom for hoisting a load. A superstructure ballast is supported on the superstructure. The cranes have a superlift ballast and associated connection manners to connect the superlift ballast to the backmast while the superlift ballast is resting on the surface and/or suspended from the backmast above the surface. The travelling base structure is provided with superlift ballast support to support the superlift ballast on the base structure so that the superlift ballast is movable along with the mobile crane while being supported by the base structure.

Abstract: Embodied herein is a monohull vessel with a moonpool capable of being used offshore. The monohull vessel includes a moonpool and a deck level. A movable hatch is connected to topside of the moonpool and is countersunk beneath the deck level. A multipurpose tower is mounted on the monohull vessel. The monohull vessel includes an equipment handling system removably mounted on the vessel and a hoist system located inside the monohull vessel.