Patents by Inventor John Allan Nighswander

John Allan Nighswander 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: 9618427
    Abstract: The disclosure describes a system to segregate, enrich and capture oil, water and gas samples from a multiphase flow. The system can be used in a subsea location, on the surface or in any other condition where it is connected to a flow of different phases of gas and/or liquid. The samples obtained are representative in composition of the phases flowing at well head conditions in terms of both pressure and temperature. Additionally, a relatively small volume of each phase is used in obtaining the samples. The system connects and disconnects to ports installed at the sampling location nearby the wellhead or the production line. The sampling flow is controlled by means of a pump. The collected samples are separated in mono (or nearly mono)—phase samples (oil, water and gas) and stored in individual bottles.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: April 11, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Bernard E. Theron, Malcolm Atkinson, Andrea Sbordone, John Allan Nighswander, Rune Lien
  • Publication number: 20150007648
    Abstract: The disclosure describes a system to segregate, enrich and capture oil, water and gas samples from a multiphase flow. The system can be used in a subsea location, on the surface or in any other condition where it is connected to a flow of different phases of gas and/or liquid. The samples obtained are representative in composition of the phases flowing at well head conditions in terms of both pressure and temperature. Additionally, a relatively small volume of each phase is used in obtaining the samples. The system connects and disconnects to ports installed at the sampling location nearby the wellhead or the production line. The sampling flow is controlled by means of a pump. The collected samples are separated in mono (or nearly mono)—phase samples (oil, water and gas) and stored in individual bottles.
    Type: Application
    Filed: March 1, 2013
    Publication date: January 8, 2015
    Inventors: Bernard E. Theron, Malcolm Atkinson, Andrea Sbordone, John Allan Nighswander, Rune Lien
  • Patent number: 7379819
    Abstract: Methods of assuring that a representative formation and/or fluid sample of a subterranean reservoir is obtained are provided. One method of validating a reservoir fluid sample obtained from a wellbore includes the steps of acquiring a reservoir fluid sample in the wellbore; measuring a property of the fluid sample downhole with a technique to obtain a measured downhole fluid property; replicating the measuring technique used to obtain the measured downhole fluid property to obtain at a remote location from the wellbore with a technique to obtain at least one measured remote location fluid property; validating the fluid sample through comparison of the measured downhole fluid property and the at least one measured remote location fluid property.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: May 27, 2008
    Assignee: Schlumberger Technology Corporation
    Inventors: Soraya Sofia Betancourt, Ahmed Hammami, John Allan Nighswander, Syriac George Mathews, Bhavani Raghuraman, Gale Gustavson, Lennox Reid, Tara Davies, Oliver C. Mullins
  • Patent number: 7158887
    Abstract: A method of assuring the collection of reliable and quality fluid sample includes the steps of acquiring a fluid sample at a point of acquisition, analyzing physical and chemical properties of the fluid sample at the point of acquisition; recording the point of acquisition sample properties in an electronic database archive, analyzing physical and chemical properties of the fluid sample at a location remote from the point of acquisition, recording the remote location sample properties in the archive, validating the fluid sample through comparison of the point of acquisition sample properties and the remote location sample properties and recording the validated sample properties in the archive.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: January 2, 2007
    Assignee: Schlumberger Technology Corporation
    Inventors: Soraya Sofia Betancourt, Oliver C. Mullins, Ahmed Hammami, John Allan Nighswander, Peter S. Hegeman, John Ratulowski, Moin Muhammad, Raymond G. Kennedy, Chengli Dong, Erwan Olliero
  • Patent number: 7062958
    Abstract: A receptacle (10) for use in collecting samples down a well bore (14) is provided, the receptacle comprising a plurality of interconnecting modules (22, 24, 26, 30, 32, 34). A main chamber (22) is capable of holding a sample, and sensors (58, 60, 62, 64) within the chamber detect physical and chemical characteristics of the sample. Valves (50, 52) in a chamber wall seal the chamber (22) after a fluid sample has been collected. A communication means is placed in communication with the chamber (22) so as to provide an externally accessible port which communicates with the inside of the chamber (22) and allows detection and analysis of sample characteristics without removing the sample from the sealed chamber (22). The chamber (22) includes a piston (82) which is adjustable to keep pressure constant in the chamber and a heating element (58) to keep temperature constant. A method for sampling downhole fluids is also provided.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: June 20, 2006
    Assignee: Schlumberger Technology Corporation
    Inventors: Igor Igorevitch Diakonov, Anthony Robert Holmes Goodwin, Andrew Loris Kurkjian, Jonathan Webster Brown, John Allan Nighswander
  • Publication number: 20030033866
    Abstract: A receptacle (10) for use in collecting samples down a well bore (14) is provided, the receptacle comprising a plurality of interconnecting modules (22, 24, 26, 30, 32, 34). A main chamber (22) is capable of holding a sample, and sensors (58, 60, 62, 64) within the chamber detect physical and chemical characteristics of the sample. Valves (50, 52) in a chamber wall seal the chamber (22) after a fluid sample has been collected. A communication means is placed in communication with the chamber (22) so as to provide an externally accessible port which communicates with the inside of the chamber (22) and allows detection and analysis of sample characteristics without removing the sample from the sealed chamber (22). The chamber (22) includes a piston (82) which is adjustable to keep pressure constant in the chamber and a heating element (58) to keep temperature constant. A method for sampling downhole fluids is also provided.
    Type: Application
    Filed: July 25, 2002
    Publication date: February 20, 2003
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Igor Igorevitch Diakonov, Anthony Robert Holmes Goodwin, Andrew Loris Kurkjian, Jonathan Webster Brown, John Allan Nighswander