Patents by Inventor Jose A. Caldera

Jose A. Caldera 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 and system for interpreting swabbing tests using nonlinear regression
    Patent number: 8086431
    Abstract: A method for increasing production in a reservoir, comprising performing a swabbing test at a depth in a pipe, wherein the pipe is located in a wellbore and wherein a portion of the wellbore is located inside the reservoir, periodically measuring, during the swabbing test, pressure in the bottom portion of the pipe using the pressure gauge to obtain a plurality of pressure measurements, wherein the pressure gauge is affixed to an inner wall of a bottom portion of the pipe, and determining a plurality of flow rates of fluid flowing from the reservoir through perforations in the wellbore into the pipe using a flow rate equation and the plurality of pressure measurements.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: December 27, 2011
    Assignee: Schlumberger Technology Corporation
    Inventor: Jose A. Caldera
  • METHOD AND SYSTEM FOR INTERPRETING SWABBING TESTS USING NONLINEAR REGRESSION
    Publication number: 20090084544
    Abstract: A method for increasing production in a reservoir, comprising performing a swabbing test at a depth in a pipe, wherein the pipe is located in a wellbore and wherein a portion of the wellbore is located inside the reservoir, periodically measuring, during the swabbing test, pressure in the bottom portion of the pipe using the pressure gauge to obtain a plurality of pressure measurements, wherein the pressure gauge is affixed to an inner wall of a bottom portion of the pipe, and determining a plurality of flow rates of fluid flowing from the reservoir through perforations in the wellbore into the pipe using a flow rate equation and the plurality of pressure measurements
    Type: Application
    Filed: September 23, 2008
    Publication date: April 2, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Jose A. Caldera