A pile upending and holding system includes a support assembly configured to be mounted on the vessel and to provide compensation for wave-induced motion of the vessel to maintain a predetermined X-Y location of the pile holder independent of said motion, and a pile holder mounted on the support assembly to be tillable about a substantially horizontal tilt axis. The pile holder includes a lower ring and an upper ring, and a pile holder frame supporting the lower ring and upper ring, the upper ring longitudinally spaced from the lower ring. Each of the rings include pile engaging devices distributed about the circumference thereof, each pile engaging device being adapted to engage an exterior of the pile extending through the lower and upper ring. Each of the lower ring and upper ring includes a ring base fixed to the pile holder frame and one or more movable jaws, movable between a closed position for holding and guiding the pile and an opened position for entry of the pile. The pile holder is provided, below the lower ring thereof, with a pile foot end support for engaging a longitudinal end of the pile to limit longitudinal movement thereof.

A ring-wing floating platform is disclosed. The ring-wing floating platform includes a floating hull, a top of the floating hull being above a sea surface and its geometry at a water plane is centrally symmetric, a ring-wing surrounding a perimeter of a bottom of the floating hull with a horizontal projection of concentric annular geometries, a positioning system located at the bottom of the floating hull, and a topsides located above the floating hull and connected to the floating hull by deck legs or installed directly on the top of the floating hull. The axes of the ring-wing and the floating hull are collinear, and their bottoms are in a same horizontal plane. The ring-wing and the floating hull are connected together as a unitary structure by multiple connecting components with an annular gap in-between.

A ring-wing floating platform is disclosed. The ring-wing floating platform includes a floating hull, a top of the floating hull being above a sea surface and its geometry at a water plane is centrally symmetric, a ring-wing surrounding a perimeter of a bottom of the floating hull with a horizontal projection of concentric annular geometries, a positioning system located at the bottom of the floating hull, and a topsides located above the floating hull and connected to the floating hull by deck legs or installed directly on the top of the floating hull. The axes of the ring-wing and the floating hull are collinear, and their bottoms are in a same horizontal plane. The ring-wing and the floating hull are connected together as a unitary structure by multiple connecting components with an annular gap in-between.

The present invention relates to an apparatus for engaging a first body with a second body, for example, for locking an oil rig platform to a rig leg. The apparatus comprises a driving portion, for example in the form of a driving wedge, which is moveably attachable to the first body, and an engaging portion, for example in the form of an engaging wedge, which is moveably attached to the driving portion. The driving portion is adapted to move in a first direction with respect to the second body and the engaging portion defines an engaging profile adapted to engage a complementary profile on the second body. Movement of the driving portion results in movement of the engaging portion. The apparatus also comprises an adjustment device connecting the driving portion to the engaging portion and adapted to move the engaging portion independently of the driving portion.

The present invention relates to an apparatus for engaging a first body with a second body, for example, for locking an oil rig platform to a rig leg. The apparatus comprises a driving portion, for example in the form of a driving wedge, which is moveably attachable to the first body, and an engaging portion, for example in the form of an engaging wedge, which is moveably attached to the driving portion. The driving portion is adapted to move in a first direction with respect to the second body and the engaging portion defines an engaging profile adapted to engage a complementary profile on the second body. Movement of the driving portion results in movement of the engaging portion. The apparatus also comprises an adjustment device connecting the driving portion to the engaging portion and adapted to move the engaging portion independently of the driving portion.

A self-adjusting hydraulic static penetrating device and method suitable for a seabed slope area is provided. The device includes an upper adjustable injection platform and a lower adjustable supporting platform. The upper adjustable injection platform is fixedly connected with the upper surface of the lower adjustable supporting platform. The upper adjustable injection platform includes a rack, a control cabin, an injection mechanism, a hydraulic station, a balance weight and first jacks. The control cabin, the injection mechanism, the hydraulic station, the balance weight and the first jacks are all arranged on the rack. The four first jacks are installed at the bottom of a steel structure frame, and the first jacks are fixed to the lower adjustable supporting platform. The device is simple in structure and low in cost, and can guarantee, to the maximum extent, that the overall gravity center of the device is always constant or slightly changes.

A self-adjusting hydraulic static penetrating device and method suitable for a seabed slope area is provided. The device includes an upper adjustable injection platform and a lower adjustable supporting platform. The upper adjustable injection platform is fixedly connected with the upper surface of the lower adjustable supporting platform. The upper adjustable injection platform includes a rack, a control cabin, an injection mechanism, a hydraulic station, a balance weight and first jacks. The control cabin, the injection mechanism, the hydraulic station, the balance weight and the first jacks are all arranged on the rack. The four first jacks are installed at the bottom of a steel structure frame, and the first jacks are fixed to the lower adjustable supporting platform. The device is simple in structure and low in cost, and can guarantee, to the maximum extent, that the overall gravity center of the device is always constant or slightly changes.

A boat lift is attached to piles driven into the earth or to another object. The boat lift is held in horizontal position relative to piles or the object to which it is attached, but vertical movement of the boat lift relative to the object is permitted. The boat lift is connected to the piles by modular units or cube constructs that have a post extending there through. The post has a blade extending from it. The blades are attached at an angle, according to the application, to pile guides that engage piles. The pile guides vertically traverse the piles, permitting the boat lift to move vertically relative to the object, but fixing the horizontal position of the boat lift.

A boat lift is attached to piles driven into the earth or to another object. The boat lift is held in horizontal position relative to piles or the object to which it is attached, but vertical movement of the boat lift relative to the object is permitted. The boat lift is connected to the piles by modular units or cube constructs that have a post extending there through. The post has a blade extending from it. The blades are attached at an angle, according to the application, to pile guides that engage piles. The pile guides vertically traverse the piles, permitting the boat lift to move vertically relative to the object, but fixing the horizontal position of the boat lift.

A system for controlling a motion compensated pile guide for a floating vessel comprises a pile guide for guiding a monopile in its longitudinal direction during driving the monopile into a seabed, an actuator for moving the pile guide in horizontal direction with respect to a vessel to which the pile guide is mounted, a control unit for controlling the actuator, which control unit is configured for compensating motion of the vessel to which the pile guide is mounted so as to maintain the horizontal position of the pile guide during driving a monopile into a seabed, a first sensor for determining an inclination angle of a monopile with respect to the vertical during driving the monopile into a seabed, and a second sensor for determining magnitude and direction of an actual force of a monopile onto the pile guide during driving the monopile into a seabed. The control unit is configured to determine a desired force of the pile guide onto the monopile for minimizing the inclination angle when determined by the first sensor, and to control the actuator for moving the pile guide opposite to the direction of the actual force when the desired force is larger than the actual force and in the same direction as the actual force when the actual force is larger than the desired force.