Atp Oil & Gas Corporation

Offshore Technology Development Pte Ltd

Offshore Innovative Solutions LLC

William T Bennett, Jr

Robert Magee Shivers, Iii

David Trent

Kok Seng Foo

Hoe Phong Tham

Jacob Alford

A floating liquefaction vessel and connecting device system for receiving a dry gas, forming a liquefied natural gas, and offloading the liquefied natural gas, wherein the system can include a floating liquefaction vessel for receiving the dry gas, cooling the dry gas to form liquefied natural gas, flowing the liquefied natural to a transport vessel, and receiving a hydrocarbon vapor from the transport vessel. A floating liquefaction vessel controller can monitor offloading of the liquefied natural gas. A connecting device can connect the transport vessel to the floating liquefaction vessel. The connecting device can include an inner walkway telescopically contained within an outer walkway and configured to extend and retract from the outer walkway in response to motions.

Floating liquefaction vessel

A floating liquefaction vessel and transport system for receiving, storing, and transporting a liquefied natural gas, wherein the system can include a transport vessel for monitoring, receiving, storing, and transporting the liquefied natural gas. A transport vessel controller can dynamically position the transport vessel in proximity to a floating liquefaction vessel using motion sensors, fan beams, and dynamic global positioning systems. The floating liquefaction vessel can include receive a dry gas, and cool the dry gas to form liquefied natural gas for transfer to the transport vessel across a connecting device. The connecting device can connect the transport vessel to the floating liquefaction vessel, and can include: an inner walkway telescopically contained within an outer walkway. The inner walkway can extend and retract from the outer walkway in response to motions.

Liquefied natural gas dynamic positioning system processing and transport system

A method for processing a dry gas into a liquefied natural gas and offloading the liquefied natural gas, wherein the method can include using a connecting device to: attach and hold the transport vessel to the floating liquefaction vessel, and enabling an inner walkway to extend and retract from an outer walkway of the connecting device to accommodate for motions. The method can include receiving and cooling dry gas to form liquefied natural gas for transfer to the transport vessel. The method can include transferring personnel and equipment within walkway on the connecting device. The method can include using a transport vessel controller to continuously monitor receipt, storage, and offloading of the liquefied natural gas. The method can include dynamically positioning the transport vessel in proximity to the floating liquefaction vessel using computer instructions and motions measured by sensors or the like.

Method for offshore natural gas processing with dynamic positioning system

A method for receiving and processing dry gas into liquefied natural gas, offloading the liquefied natural gas, and transporting the liquefied natural gas to another location, wherein the method can include using a connecting device to: attach and hold a transport vessel to a floating liquefaction vessel. The connecting device can have an inner walkway configured to extend and retract from an outer walkway to accommodate for motions. The method can include receiving and cooling dry gas to form liquefied natural gas, and transferring the liquefied natural gas to the transport vessel. The method can include dynamically positioning the transport vessel in proximity to the floating liquefaction vessel using motions measured by motion sensors and the like. The method can include storing the liquefied natural gas on the floating transport vessel, releasing the transport vessel from the connecting device, and transporting the liquefied natural gas to another location.

Method for processing and moving liquefied natural gas with dynamic positioning system

A method for offloading a liquefied natural gas from a floating liquefaction vessel to a transport vessel for storage and transport, wherein the method can include using a connecting device to attach and hold the transport vessel to the floating liquefaction vessel, and using a ram to move a telescoping walkway of the connecting device from a transport position to a deployed position. The method can include connecting the telescoping walkway to a variety of bow configurations of transport vessels by securing an inner walkway to the transport vessel. The inner walkway can extend and retract from an outer walkway to accommodate for motions. The method can include transferring the liquefied natural gas to the transport vessel. The method can include monitoring receipt, storage, and offloading of the liquefied natural gas and dynamically positioning the transport vessel in proximity to the floating liquefaction vessel.

Method for tendering at sea with a pivotable walkway and dynamic positioning system

The present invention provides an improved cantilever () for skidding on a platform () of a drilling rig. The cantilever () has two longitudinal members () while an edge () of the platform () has two transverse members (). The longitudinal and transverse members are connected at each interposition by a sliding and swivel assembly (). Each sliding/swivel assembly () is connected by an actuator () to the longitudinal or transverse member so that the cantilever () is operable to be displaced on the platform () by translation, rotation or a combination of translation and rotation.

Cantilever skidding system on a drilling rig

A method for use in deep water, for dynamically connecting a fixed for floating vessel to a floating transport vessel using at least one telescoping mooring arm, and for flowing a fluid that forms a hydrocarbon vapor to the moveable floating transport vessel with offload flexible conduits that adjust to accommodate vessel motion, wave motion, current motion, and other weather motion without disengaging is disclosed herein. The method can include using telescoping mooring arms to maintain a nominal distance between the fixed or floating vessel and the transport vessel while forming an enclosed gangway. The method can include monitoring offloading and return of hydrocarbon vapor, providing quick connect/disconnect engagements to the transport vessel, and using an adjustable vapor return flexible conduit. The method can include releasing the transport vessel from the fixed for floating vessel to transport the fluid to another location.

Method for offloading a fluid that forms a hydrocarbon vapor using a soft yoke

A method for receiving dry gas and forming liquefied natural gas on a floating vessel, and offloading the liquefied natural gas using telescoping mooring arms to a floating transport vessel is disclosed herein. The method can include mooring the floating vessel to a seabed with a mooring spread, using a soft yoke to moor the transport vessel to the floating vessel, receiving a dry gas, cooling the dry gas forming a liquefied nature gas, transferring the liquefied natural gas to the transport vessel, transferring personnel and equipment over a gangway, returning hydrocarbon vapor to the floating vessel, cooling the hydrocarbon vapor, and using the hydrocarbon vapor as a fuel for the floating vessel.

Method for offshore natural gas processing using a floating station, a soft yoke, and a transport ship

A method for receiving dry natural gas, cryogenically cooling the gas, then forming liquefied natural gas is disclosed herein. The method can include flowing the liquefied natural gas to a moveable floating transport vessel. The method can include using mooring arms that maintain a nominal distance between the station and the vessel while simultaneously forming an enclosed gangway and monitoring offloading and return of hydrocarbon vapor. The method can include providing quick connect/disconnect engagements to the transport vessel and storing the liquefied natural gas on the transport vessel at a cryogenic temperature. The method can include recycling hydrocarbon vapor formed during offloading to the floating station and maintaining a cryogenic temperature using a flow rate substantially the same as the floating station uses fuel. The method can include releasing the transport vessel from the floating station to transport the liquefied natural gas to another location.

Method for processing and moving liquefied natural gas using a floating station and a soft yoke

A floating natural gas processing station for receiving dry gas and forming liquefied natural gas for offloading is disclosed herein. The station can use a station heat exchanger, a natural gas liquefaction train, and an offloading device having a primary quick connect/disconnect device, a secondary emergency disconnect device, and a tertiary emergency disconnect device to allow quick connect/disconnect or emergency disconnect of the floating natural gas processing station from a transport vessel. At least two telescoping mooring arms with a boom and a jib in a nested arrangement can hold the transport vessel at a nominal distance from the floating natural gas processing station, while forming a gangway to safely move personnel and loads between the floating natural gas processing station and the transport vessel.

Floating natural gas processing station

A device for dynamically positioning a ship, assisting in offload of a processed hydrocarbon fluid, and assisting in return of hydrocarbon vapors is disclosed herein. The device can be a soft yoke that is pivotable and collapsible with at least two telescoping mooring arms having a boom and jib in a nested arrangement to safely hold floating stations to transport vessels. The boom and the jib can form a gangway to move personal and loads.

Soft yoke

A station and transport system for receiving, storing, and transporting liquefied natural gas is disclosed herein. The system can include a transport vessel, a floating liquefied natural gas processing station with a heat exchanger for receiving the dry gas from a pretreatment source and forming liquefied natural gas using a natural gas liquefaction train, a primary quick connect/disconnect device, a secondary emergency disconnect device, and a tertiary emergency disconnect device mounted to a station hull to allow quick connect/disconnect or emergency disconnect of the floating natural gas processing station from the transport vessel. The system can include a soft yoke with at least two telescoping soft yoke mooring arms, a boom, and a jib that form a gangway to safely hold the floating station to the transport vessel and to move personal and loads.

Liquefied natural gas processing and transport system

A tensioner assembly having a fully extended position, a fully retracted position and a plurality of extended positions there between, for supporting a riser extending downwardly from a platform to a subsea wellhead. The tensioner assembly can have a riser conductor portion, a tension disk, a lower support structure, a plurality of ram tensioner piston rods, a cylinder deck, a plurality of hydraulic stroke cylinders, a plurality of first primary accumulators, a plurality of second primary accumulators, a plurality of first valves, a plurality of secondary accumulators, and a plurality of second valves.

Ram-type tensioner assembly with accumulators

The present invention is a deep draft partially submersible and buoyant floating vessel comprised of at least three independent vertical columns. The columns have an upper column with an upper column diameter and a lower column integrally connected to the upper column with a lower column diameter smaller than the upper column diameters. The lower column contains a variable ballast, a free flooding ballast, and a lower column fixed ballast. The lower pontoon is connected to each lower column opposite the upper column. The lower pontoon has lower pontoon fixed ballast means. A deck is located on the columns for supporting a tensioner assembly.

Growing community of inventors

Houston, TX, United States of America

William T Bennett, Jr