Deep Reach Technology, Inc.

Lockheed Martin Corporation

University of Maine System

Cso Aker Maritime, Inc.

Makai Ocean Engineering, Inc.

John E Halkyard

Michael Rai Anderson

Eric Jackson

Jonathan B Machin

James Wodehouse

Jonathan Bruce Machin

Habib J Dagher

Anthony M Viselli

Stephen Lee Bailey

Phillip Andrew Abbott

Qi Xu

Natalie B Levings

John M Montague

Patrick D Grandelli

Steven Rizea

Laurie Meyer

Paul Smith

Joseph Van Ryzin

Richard Petters

Douglas Maxwell

A method and apparatus for generating a slurry from the surface of the subsea floor, separating that slurry into multiple slurries, and pumping the desired slurry to the surface.

Methods for reducing sediment plume in deepsea nodule mining

A method and apparatus for the separation of gas and liquid-solid slurry under pressure, and passage of the liquid-solid slurry to an atmospheric discharge.

Multiphase separation and pressure letdown method

A floating wind turbine farmincludes a plurality of anchorsfixed in or on a bed of a body of water. A plurality of floating wind turbine platformsis deployed in the body of water, each of the floating wind turbine platformshaving one or more mooring linesthat extend between, and are attached to, the floating wind turbine platformand one of the anchors. Each anchoris configured to receive two or more mooring lines, wherein each of the mooring linesare from a different one of the plurality of floating wind turbine platforms

Method of mooring floating wind turbine platforms

Systems and methods for recovering and concentrating rare earth elements from seabed sediment deposits using seabed excavators and shipboard processing systems.

System for recovering minerals from the seabed

An undersea anchor that includes a frame that is fixed to the seafloor by one or more pile anchors, for example grouted pile anchors. The frame is configured to permit it to function with one or more seabed drills to allow the pile anchor(s) to be installed at an angle relative to horizontal so the pile anchors can take horizontal and vertical loads.

Undersea anchoring system and method

A flexible connection for use between a vertical, large diameter cold water conveying pipe and a floating platform that supports the cold water conveying pipe or another pipe to permit the pipe and the platform to rotate in roll and pitch directions relative to one another without imposing excessive bending moments or strain on the cold water pipe. The flexible connection also contains internal and external pressure across the connection. The flexible connection includes an articulation mechanism that interconnects the vertical cold water conveying pipe and the platform or a pipe on the platform, and a flexible, fluid impermeable bellows.

Large diameter pipe flexible connection

Novel subsea excavation apparatus and methods that exert force between a subsea anchor point and an excavator using a subsea actuator. In some examples the subsea actuator is attached to an anchor point on the seabed and the excavator directly. In other examples, a guide frame is anchored to the seabed to provide anchor points fixed relative to the seabed and the subsea actuators are attached to the guide frame and the excavator. In further examples, the subsea actuators can be attached to the excavator through a carrier frame or other excavator guides rather than directly to the excavator.

Subsea excavation systems and methods

A floating support that can be joined with a floating platform while the floating platform is at a deployment location is disclosed. The support provides functionality to the floating platform in order to change, augment, upgrade, or diversify the platform's overall capability. In some embodiments, the present invention eases the serviceability of the platform by enabling a first support that has diminished capability to be readily replaced by a second support having superior capability&#x2014;without removing the floating platform from its deployment location. In some embodiments, the present invention enables platform operation that is analogous to 'plug and play' electronics systems. Further, in some embodiments, hydrodynamic performance of the floating platform can be changed with the addition or removal of one or more floating supports.

Floating platform with detachable support modules

A heave suppressed, floating offshore drilling and production platform comprises vertical columns, lateral trusses connecting adjacent columns, a deep-submerged horizontal plate supported from the bottom of the columns by vertical truss legs, and a topside deck supported by the columns. The lateral trusses connect adjacent columns near their lower end to enchance the structural intergrity of the platform. During the launch of the platform and towing in relatively shallow water, the truss legs are stowed in shafts within each column, and the plate is carried just below the lower ends of the columns. After the platform has been floated to the deep water drilling and production site, the truss legs are lowered from the column shafts to lower the plate to a deep draft for reducing the effect of wave forces and to provide heave and vertical motion resistance to the platform. Water in the column shafts is then removed for buoyantly lifting the platform so that the deck is at the desired elevation above the water surface.

Growing community of inventors

Houston, TX, United States of America

John E Halkyard