Patents by Inventor Sascha Van Putten

Sascha Van Putten 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).

  • Method of determining a fluid inflow profile of wellbore
    Patent number: 7475724
    Abstract: A method of determining a fluid inflow profile along the length of a permeable inflow region of an underground wellbore comprising: transferring heat into or from the permeable inflow region of the wellbore during a well shut period; starting production of hydrocarbon fluids via the permeable inflow region; measuring substantially simultaneously the temperature of the fluids at various points of the inflow region; determining at selected intervals of time after production start up a temperature profile of the inflow region on the basis of the thus measured temperatures; and determining a fluid inflow profile of the inflow region on the basis of a comparison of the determined temperature profiles at selected intervals after production start up. The heater cable may have a layer of compacted mineral powder and temperatures may be measured with an optical fiber.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: January 13, 2009
    Assignee: Shell Oil Company
    Inventors: Daniel Frederik Christof Pribnow, Sascha Van Putten, Eric Pierre De Rouffignac
  • Method of determining a fluid inflow profile of wellbore
    Publication number: 20070158064
    Abstract: A method of determining a fluid inflow profile along the length of a permeable inflow region of an underground wellbore comprising: transferring heat into or from the permeable inflow region of the wellbore during a well shut period; starting production of hydrocarbon fluids via the permeable inflow region; measuring substantially simultaneously the temperature of the fluids at various points of the inflow region; determining at selected intervals of time after production start up a temperature profile of the inflow region on the basis of the thus measured temperatures; and determining a fluid inflow profile of the inflow region on the basis of a comparison of the determined temperature profiles at selected intervals after production start up. The heater cable may have a layer of compacted mineral powder and temperatures may be measured with an optical fiber.
    Type: Application
    Filed: December 22, 2004
    Publication date: July 12, 2007
    Inventors: Daniel Pribnow, Sascha Van Putten, Eric De Rouffignac