Patents by Inventor Graham Birkett

Graham Birkett has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8606531
    Abstract: This disclosure relates in general to systems and methods for spot checking flow properties of a multiphase mixture containing one or more hydrocarbons flowing through a pipeline or the like. More specifically, but not by way of limitation, embodiments of the present invention provide systems and methods for creating slug-type flows of isokinetically obtained samples of the multiphase mixture flow. By spot checking the slug-type flow of an isokinetically obtained sample of the multiphase flow, embodiments of the present invention may provide for determining flow properties of gas, oil/condensate and/or water components of the multiphase flow. In certain aspects of the present invention, an active sampling device may be used to enrich one of the phases of the slug-type flow of the sampled multiphase mixture and/or take a representative sample of one of the phases of the slug-type flow of the sampled multiphase mixture.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: December 10, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Bruno Pinguet, Cheng-gang Xie, Paul Guieze, Graham Birkett
  • Patent number: 8245572
    Abstract: A system and method facilitates the analysis and sampling of well fluid. A sampling and data collection device is used to detect well fluid properties in situ at a flowline installation. In an exemplary embodiment, the sampling and data collection device comprises a sample collection system having a probe adapted to selectively insert into and selectively retract from the flowline to collect a fluid sample, and a sensor system to determine PVT data in situ at the location where the probe is inserted into the flowline.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: August 21, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Graham Birkett, David MacWilliam, Paul Ross, Mangus Wardle, Malcolm Atkinson
  • Patent number: 8020437
    Abstract: The invention relates to fluid sampling in a test that is used to determine physical and chemical characteristics of the fluids in a subterranean reservoir. The method reconstructs the entire pressure history of the fluid parcel that is captured in the fluid samplers during a test. Using this reconstructed pressure history of the samples, the quality of the samples, particularly, whether there is a phase change in the samples during the test, can be accurately quantified.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: September 20, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Lang Zhan, Dhandayuthapani Kannan, James G. Filas, Graham Birkett
  • Patent number: 7966273
    Abstract: Apparatus and methods to perform downhole fluid analysis using an artificial neural network are disclosed. A disclosed example method involves obtaining a first formation fluid property value of a formation fluid sample from a downhole fluid analysis process. The first formation fluid property value is provided to an artificial neural network, and a second formation fluid property value of the formation fluid sample is generated by means of the artificial neural network.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: June 21, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Peter Hegeman, Chengli Dong, Charles Woodburn, Graham Birkett, Nikos Varotsis, Vassilis Gaganis
  • Publication number: 20100145634
    Abstract: This disclosure relates in general to systems and methods for spot checking flow properties of a multiphase mixture containing one or more hydrocarbons flowing through a pipeline or the like. More specifically, but not by way of limitation, embodiments of the present invention provide systems and methods for creating slug-type flows of isokinetically obtained samples of the multiphase mixture flow. By spot checking the slug-type flow of an isokinetically obtained sample of the multiphase flow, embodiments of the present invention may provide for determining flow properties of gas, oil/condensate and/or water components of the multiphase flow. In certain aspects of the present invention, an active sampling device may be used to enrich one of the phases of the slug-type flow of the sampled multiphase mixture and/or take a representative sample of one of the phases of the slug-type flow of the sampled multiphase mixture.
    Type: Application
    Filed: March 19, 2008
    Publication date: June 10, 2010
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Bruno Pinguet, Cheng-gang Xie, Paul Guieze, Graham Birkett
  • Publication number: 20100132449
    Abstract: A system and method facilitates the analysis and sampling of well fluid. A sampling and data collection device is used to detect well fluid properties in situ at a flowline installation. In an exemplary embodiment, the sampling and data collection device comprises a sample collection system having a probe adapted to selectively insert into and selectively retract from the flowline to collect a fluid sample, and a sensor system to determine PVT data in situ at the location where the probe is inserted into the flowline.
    Type: Application
    Filed: January 16, 2008
    Publication date: June 3, 2010
    Inventors: Graham Birkett, David MacWilliam, Paul Ross, Magnus Wardle, Malcolm Atkinson
  • Publication number: 20100059221
    Abstract: Subsea apparatus and a method for sampling and analysing fluid from a subsea fluid flowline proximate a subsea well is provided, wherein the apparatus comprises at least one housing located in close proximity to said subsea fluid flowline; at least one fluid sampling device located in the housing in fluid communication with a said subsea fluid flowline for obtaining a sample of fluid from the subsea fluid flowline; at least one fluid processing apparatus located in the housing in fluid communication with said subsea fluid flowline for receiving and processing a portion of the fluid flowing through said fluid flowline or in fluid communication with the fluid sampling device, for processing the sample of fluid obtained from the subsea fluid flowline for analysis, while keeping the sample of fluid at subsea conditions; a fluid analysis device located in the housing, the fluid analysis device being in fluid communication with the fluid processing device and/or with the fluid sampling device, the fluid analysis de
    Type: Application
    Filed: June 3, 2009
    Publication date: March 11, 2010
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Stephane Vannuffelen, Ricardo Vasques, Tsutomu Yamate, Akira Kamiya, Kentaro Indo, Gary Oddie, Jonathan Machin, Julie Morgan, Morten Stenhaug, Graham Birkett, Oliver C. Mullins, Lars Mangal, Pascal Panetta
  • Publication number: 20090030858
    Abstract: Apparatus and methods to perform downhole fluid analysis using an artificial neural network are disclosed. A disclosed example method involves obtaining a first formation fluid property value of a formation fluid sample from a downhole fluid analysis process. The first formation fluid property value is provided to an artificial neural network, and a second formation fluid property value of the formation fluid sample is generated by means of the artificial neural network.
    Type: Application
    Filed: April 7, 2008
    Publication date: January 29, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Peter Hegeman, Chengli Dong, Charles Woodburn, Graham Birkett, Nikos Varotsis, Vassilis Gaganis
  • Publication number: 20090000785
    Abstract: The invention relates to fluid sampling in a test that is used to determine physical and chemical characteristics of the fluids in a subterranean reservoir. The method reconstructs the entire pressure history of the fluid parcel that is captured in the fluid samplers during a test. Using this reconstructed pressure history of the samples, the quality of the samples, particularly, whether there is a phase change in the samples during the test, can be accurately quantified.
    Type: Application
    Filed: June 26, 2007
    Publication date: January 1, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Lang Zhan, Dhandayuthapani Kannan, James G. Filas, Graham Birkett