Resources Contact Us Home
Column structure enabling handling appliances on the seabed, particularly for the assembly and maintenance of well-heads

Image Number 4 for United States Patent #4119145.

The invention concerns the handling of appliances on the seabed, particularly for handling and maintaining well-heads and corresponding installations. For handling the well-heads, trolleys are mounted for travel along a column which is articulated to a base constructed on the seabed over a number of drilling wells. The trolleys are movable between the upper structure of the columns and the lower body part of the column coupled to the base, and carry well-heads or other devices between the upper structure and the base and release the same upon reaching the lower part of the column at a position above corresponding well orifices. Elongate vertical members or posts of the column have lateral walls constituting guide rails for the trolleys.

  Recently Added Patents
Web-based system and method for video analysis
Multi currency exchanges between participants
Selection of system parameters based on non-acoustic sensor information
RPM Controlled Wind Power Generation System
Electrical terminal
Method and structure of forming backside through silicon via connections
Pelvic registration device for medical navigation
  Randomly Featured Patents
Apparatus for producing granules from fine powder
Associating a sound record with a film image
Support members for wafer processing fixtures
Grommet for ceiling fan pull chain switch
Electronic flash unit and manufacturing method thereof
Handheld electronic device providing a learning function to facilitate correction of erroneous text entry and associated method
Capacitor anode assembly
Plate pedestal
Spot position indication signal generation
Active differential