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
Treatment devices with deliver-activated inflatable members, and associated systems and methods for treating the spinal cord and other tissues
System and method for improving cache efficiency
Active metal fuel cells
Associating objects in databases by rate-based tagging
Dual gate electronic memory cell and device with dual gate electronic memory cells
Arcuate motion control in electrostatic actuators
Nonvolatile semiconductor memory device
  Randomly Featured Patents
AC adapter with heat radiation sheet
Thermoplastic resin composition
Method and media for duplicate detection in an electronic marketplace
Female receptacle of Y buckle
Process for treating used industrial oil
Rotationally activated multiple plug receptacle adapter
Light modulation method
Fluid dual filter
Nanoimprint resin stamper
Enzymatic decarboxylation of 2-keto-L-gulonic acid to produce xylose