Patents Assigned to Aker Subsea
  • Patent number: 9470057
    Abstract: A gate valve assembly (100) for use in subsea workover systems is disclosed. In an embodiment, the gate valve assembly (100) includes a valve block (102). The valve block (102) includes a cutting gate (204) disposed in a valve cavity (206) such that the cutting gate (204) can engage in a reciprocating motion in the valve cavity (206) between an “open” position and a “closed” position. The reciprocating motion of the cutting gate (204) results in a cutting operation of a tubing conveyed string passing through the gate valve assembly (100). The gate valve assembly (100) further includes a slug pit (202) formed in the valve block (102) alongside the valve cavity (206). The slug pit (202) defines an opening which can contain one or more cuttings from tubing conveyed springs resulting from the cutting operation. The reciprocating motion of the cutting gate (204) transports one or more cuttings of the tubing conveyed string to the slug pit (202).
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: October 18, 2016
    Assignee: AKER SUBSEA
    Inventors: Jan Herland, Lars Lundheim
  • Patent number: 8771394
    Abstract: A device for separating and collecting liquid in gas from a reservoir, which is attached to processing equipment (14, 15) for gas, said gas being delivered to the processing equipment from the device via an inlet pipe (24) to the processing equipment and the collected liquid is removed periodically from the device via liquid outlet pipe (7). The device is formed of a liquid separator (1) and a liquid collector (2) which are two separate chambers, and which are connected to each other via a valve (3), and that for draining of the collected liquid, the liquid collector (2) is connected to an outlet pipe (19) from the processing equipment via an intermediate valve (6), draining taking place with the aid of compressed gas which via the intermediate valve (6) is supplied from the processing equipment, or alternatively from onshore or a platform, from a gas pipe or a well stream gas pipe on the seabed or the like.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: July 8, 2014
    Assignee: Aker Subsea
    Inventors: Håkon Skofteland, Kjell Olav Stinessen