Abstract: An umbilical assembly for supplying power to subsea equipment includes an electrical conductor to convey an electrical current to the subsea equipment. An insulator surrounds the conductor. A support member is positioned between the insulator and the conductor. The support member has either non-magnetic properties or low-magnetic properties because of its material composition. The support member is adapted to connect to a structure at the surface of the sea. The support member supports the weight of the conductor. The supporting of the weight of the conductor by the support member can be to reduce creep typically associated with the conductor supporting its own weight. The support member can be used to hermetically seal the conductor and prevent hydrogen migration along the conductor.

Abstract: An actuator for use in actuating a valve to control the flow of fluids through the valve, the valve having a valve member movable between positions opening and closing the valve. The actuator comprises one or more shape memory alloy elements each being transformable from a martensitic to an austenitic state by applying heat energy to achieve an austenitic transformation. The one or more shape memory alloy elements are connected to the valve member such that austenitic transformation of the one or more shape memory alloy elements induces movement of the valve member from its closing position to its opening position.

Abstract: This invention is directed to an electromagnetically shielded subsea power cable containing at least one conductor, an electromagnetic shielding layer wrapped around each conductor, an insulation layer wrapped around each electromagnetic shielding layer, and a metallic shielding layer wrapped around each insulation layer. The subsea power cable can be used to transport power from a power source to a power user located subsea or at an intermediate facility, such as a platform.

Abstract: An actuator for use in actuating a valve to control the flow of fluids through the valve, the valve having a valve member movable between positions opening and closing the valve. The actuator comprises one or more shape memory alloy elements each being transformable from a martensitic to an austenitic state by applying heat energy to achieve an austenitic transformation. The one or more shape memory alloy elements are connected to the valve member such that austenitic transformation of the one or more shape memory alloy elements induces movement of the valve member from its closing position to its opening position.

Abstract: An umbilical assembly for supplying power to subsea equipment includes an electrical conductor to convey an electrical current to the subsea equipment. An insulator surrounds the conductor. A support member is positioned between the insulator and the conductor. The support member has either non-magnetic properties or low-magnetic properties because of its material composition. The support member is adapted to connect to a structure at the surface of the sea. The support member supports the weight of the conductor. The supporting of the weight of the conductor by the support member can be to reduce creep typically associated with the conductor supporting its own weight. The support member can be used to hermetically seal the conductor and prevent hydrogen migration along the conductor.