Patents by Inventor Pramod K Singh

Pramod K Singh 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 characterizing the flowpath for fluid injected into a subterranean formation
    Patent number: 5095982
    Abstract: The flowpath for fluid injected into a hydrocarbon-containing subterranean formation for displacing hydrocarbons through the formation is determined by injecting a fluid into the formation through a wellbore, producing fluids from the formation through the wellbore, and measuring the percentage of injected fluid in produced fluids. A percentage of at least about 90% of injected fluid in produced fluids during production of about the first one-third of the total volume of injected fluid indicates that the primary flowpath is rock matrix.
    Type: Grant
    Filed: May 2, 1991
    Date of Patent: March 17, 1992
    Assignee: Amoco Corporation
    Inventors: Chungshiang P. Peng, Pramod K. Singh
  • Method for determining formation parting pressure
    Patent number: 4793413
    Abstract: Fluid is injected into a wellbore at a first rate which is low enough to maintain formation pressure beneath formation parting pressure. Thereafter, the rate of fluid injection is increased to a second rate which is high enough to exceed formation parting pressure. The time and pressure data obtained during the first and second periods are normalized, plots thereof are superposed and the formation parting pressure is determined by noting the point at which the plots deviate from one another.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: December 27, 1988
    Assignee: Amoco Corporation
    Inventors: Pramod K Singh, Ram G. Agarwal, Charles W. Miller