An ultrasonic transducer arrangement for inspecting a pipe to fitting weld with restricted scanning access. A TOFD ultrasonic send transducer is mounted adjacent one end of a frame. A TOFD ultrasonic receive transducer is mounted on the frame and spaced linearly apart from and aligned with the TOFD send transducer. ...

A floating offshore structure having a buoyant hull with an open truss frame having heave plates vertically spaced along the truss frame. One or more of the heave plates include a skin plate that is attached around the outer perimeter of the heave plate and increases the effectiveness of the heave plate at trappi...

An arrangement and method for restraining surge and sway of the barge during floatover of a topside onto a substructure. Roller bumpers provided on the substructure guide the barge during slot entry and exit without the use of secondary mooring lines and restrain sway at the floatover position. Dedicated vertical...

A reel arrangement on a vessel for storage and laying of flexible product from the vessel offshore. A cartridge, main reel is designed to receive multiple smaller, flexible product standard storage reels in an epicyclic wheel arrangement for storing and laying the flexible product. The cartridge reel is rotated t...

A load out and float off method for a spar type structure or a load out method for another structure such as a deck. The invention enables the load out and float off of a large diameter spar using existing Heavy Lift Vessels (HLV's). A U-shaped tank (U-tank) is utilized to artificially extend the length of the HL...

A semi-submersible structure. The hull includes four columns that are supported by two pontoons. The columns support the topsides and the topsides structural framing serves as horizontal framing between the columns. A truss frame is attached to the columns. The truss frame preferably includes heave plates. The truss...

A method of mating of a buoyant hull with a truss structure while at the installation site of the completed offshore structure. The buoyant hull is moored in place. The truss structure is placed in the water, self upends, and maneuvered near the buoyant hull. The buoyant hull and truss staicture are rigged with l...

A reeled pipe storage reel with a large diameter hollow cylindrical shaft, reel shaft bearing support structures installed on the vessel, and a reel drive arrangement mounted on the vessel. The shaft across the width of the reel provides structural stiffness and consistent alignment of the bearings on each end of...

An arrangement of elements which are used to restrain and deflect a pipe specimen to a prescribed form with precisely controlled loads. A rigid frame includes a movable pipe bending form to which one end of a pipe specimen is connected and a rotating table to which the second end of the pipe specimen is connected...

The present disclosure relates to apparatus and methods for introducing residual curvature to sections of pipeline during S-lay, where the residual curvature is introduced on the lay barge (100) before the selected section reaches the stinger (120). By bending a pipeline section before the pipeline section reaches t...

Aspects of the present disclosure relates to disruptive coupling systems and methods, and apparatus thereof, for subsea systems. The subsea systems may be subsea oil and gas systems. In one implementation, a subsea system includes a subsea component disposed in seawater, and a disruptive coupling device coupled to t...

Aspects of the present disclosure relates to methods of making a hybrid mechanically lined pipe, and apparatus thereof, such as lined pipe used for reeled pipe operations. In one implementation, a method of making a lined pipe for reeled pipe operations includes determining a minimum weld overlay length for a first ...

A stinger including a first member formed from a first non-metaliic material, a second body member formed from a second non-metaliic material, and a plurality of cross-support members disposed between the first body member and the second body member. The first body member includes a first lower portion, a first uppe...

A deep water lowering apparatus 10 that utilizes dual davit structures 12 mounted on a barge 3. Each davit structure 12 has a pulling wire rope line 19 spooled on a storage winch 14. Each pulling line 19 is reeved onto a traction winch 16 and through upper and lower sheaves 38, 40 on the davit structure 12 C...

Aspects of the present disclosure relate to steam cycle methods, systems, and apparatus for efficiently reducing carbon footprints in plant systems. In one aspect, a cycle is conducted In a plant system to collect CO2. In one aspect, a cycle is conducted in a plant system to recycle energy. The plant system includes...

Aspects of the present disclosure relate to methods, systems, and apparatus for efficiently reducing carbon footprints in refining systems and petrochemical processing systems. In one aspect, a plastic powder feedstock is blended Into a feedstock of a processing system to re-use plastic and reduce carbon footprints....

A disruptive coupling device is disclosed.The device comprises:a chamber housing;a chamber disposed within the chamber housing,the chamber having a first fluid in an upper portion of the chamber,and a second fluid in a lower portion of the chamber;and a barrier wall and a check valve disposed between the lower porti...

A method for installing a vortex-induced vibration (VlV)-suppression assembly includes introducing a ViV-suppression device or apparatus to a tubular member above a surface of a body of water such that the tubular member is at least partially enveloped, introducing the unsecured VIV-suppression device or apparatus a...