Patents Assigned to DES Enhanced Recovery Limited
  • Publication number: 20090025936
    Abstract: A connection system for connecting flow interface equipment to a subsea manifold is disclosed. The connection system relates particularly to a connection apparatus adapted to land a conduit means on a subsea manifold in a first stage of the connection and to connect a conduit means of the connection apparatus to a choke body of the manifold in a second stage of the connection.
    Type: Application
    Filed: February 25, 2005
    Publication date: January 29, 2009
    Applicant: Des Enhanced Recovery Limited
    Inventors: Ian Donald, John Reid, Alan Crawford, Paul W. White
  • Publication number: 20060237194
    Abstract: Methods and apparatus for diverting fluids either into or from a well are described. Some embodiments include a diverter conduit that is located in a bore of a tree. The invention relates especially but not exclusively to a diverter assembly connected to a wing branch of a tree. Some embodiments allow diversion of fluids out of a tree to a subsea processing apparatus followed by the return of at least some of these fluids to the tree for recovery. Alternative embodiments provide only one flowpath and do not include the return of any fluids to the tree. Some embodiments can be retrofitted to existing trees, which can allow the performance of a new function without having to replace the tree. Multiple diverter assembly embodiments are also described.
    Type: Application
    Filed: June 1, 2004
    Publication date: October 26, 2006
    Applicant: DES Enhanced Recovery Limited
    Inventors: Ian Donald, John Reid
  • Patent number: 7111687
    Abstract: A method and assembly for recovering fluids from, or injecting fluids into, a well having a christmas tree; the fluids typically flow between first and second flowpaths in a continuous path. The assembly may be located within the main bore, or a side passage of the christmas tree. Embodiments of the invention allow the fluids to be fed to a processing apparatus, (e.g. a pump or chemical injection apparatus) for treatment, before being returned to the christmas tree. Optionally, the assembly may include a pump located inside the christmas tree body.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: September 26, 2006
    Assignee: DES Enhanced Recovery Limited
    Inventors: Ian Donald, James Steele, John Reid
  • Patent number: 6637514
    Abstract: A method and assembly for recovering production fluids from a well having a tree, using a conduit which is inserted into a production bore to divert the recovered fluids via chemical treatment, pumping or any other apparatus with minimal reduction in the rate of recovery of the production fluids.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: October 28, 2003
    Assignee: DES Enhanced Recovery Limited
    Inventors: Ian Donald, James Steele