Resources Contact Us Home
Enhanced LNG tanker offloading in shallow waters

Image Number 3 for United States Patent #6979147.

A system for offloading LNG (liquified natural gas) from a tanker (26) in shallow waters, for regasing, or heating the offloaded LNG to produce gaseous hydrocarbons, or gas, for pressurizing the gas, and for flowing the gas to an onshore station (56), includes a structure that is fixed to the sea floor and projects above the sea surface and aids in mooring the tanker. In one system, the structure that is fixed to the sea floor is a largely cylindrical tower (12) with a mooring yoke (20) rotatably mounted on its upper end. A floating structure (14) such as a barge that weathervanes, has a bow end pivotally connected to a distal end of the yoke, so the barge is held close to the tower but can drift around the tower with changing winds, waves and currents. The tanker is moored to the barge so the barge and tanker form a combination that weathervanes as a combination. Regas and pressurizing equipment (32, 34) for heating and pressuring the LNG, and any crew quarters (36), are all located on the barge, so a low cost tower can be used. In another system, the structure is a breakwater (180).

  Recently Added Patents
Geographically self-labeling access points
Low temperature pressure chamber unit, magnetic resonance device with a low temperature pressure chamber unit, and an attachment method to attach at least one add-on unit to an external housin
Plants and seeds of hybrid corn variety CH367819
Universal handle extension for unloading butterfly valve for tank trailer or other vehicle
NMR, instrumentation, and flow meter/controller continuously detecting MR signals, from continuously flowing sample material
Self-assembling surface coating
  Randomly Featured Patents
Adjustable water-tight sump
Optical recording medium having relation between groove depths and pit depths
Retrofit waste vault system
Header panel
Magnesium oxide-containing barrier layer for thick dielectric electroluminescent displays
System for detecting voice activity
Pedestrian protecting device for a vehicle
Memory interface device, memory interface method and modem device
Bridge crane for the emplacement of elongate prefabricated members of structures spanning a multiplicity of spaced-apart supports
Apparatus and method for the determination of the relative proportions of gases