Patents by Inventor Segun A. Jebutu

Segun A. Jebutu 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).

  • Wettability estimation using magnetic resonance
    Patent number: 9746576
    Abstract: A method of estimating a wettability characteristic of a formation includes: disposing a magnetic resonance (MR) measurement apparatus in a borehole; generating a low gradient static magnetic field and an oscillating magnetic field in a region of the formation; detecting a MR signal generated in the region; calculating relaxation parameters for at least one fluid in the region; and estimating the wettability characteristic of the region based on the relaxation parameters.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: August 29, 2017
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: Segun A. Jebutu, Weidong Li
  • WETTABILITY ESTIMATION USING MAGNETIC RESONANCE
    Publication number: 20150346377
    Abstract: A method of estimating a wettability characteristic of a formation includes: disposing a magnetic resonance (MR) measurement apparatus in a borehole; generating a low gradient static magnetic field and an oscillating magnetic field in a region of the formation; detecting a MR signal generated in the region; calculating relaxation parameters for at least one fluid in the region; and estimating the wettability characteristic of the region based on the relaxation parameters.
    Type: Application
    Filed: May 27, 2014
    Publication date: December 3, 2015
    Applicant: Baker Hughes Incorporated
    Inventors: Segun A. Jebutu, Weidong Li
  • Method for estimating insitu fluid viscosity from NMR measurements
    Patent number: 7839144
    Abstract: A method for estimating a viscosity of a fluid in a rock formation, the method including: performing a first nuclear magnetic resonance (NMR) measurement with zero magnetic field gradient on at least a portion of a sample of the rock formation to obtain a first distribution of transverse relaxation time constants; estimating a first diffusive couple factor from the first distribution; replacing the fluid of the at least a portion of the sample with another fluid; performing a second NMR measurement with zero magnetic field gradient on the at least a portion of the sample containing the another fluid to obtain a second distribution of transverse relaxation time constants; estimating a second diffusive couple factor from the second distribution; and estimating the viscosity of the fluid using the first diffusive couple factor and the second diffusive couple factor.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: November 23, 2010
    Assignee: Baker Hughes Incorporated
    Inventor: Segun A. Jebutu
  • METHOD FOR ESTIMATING INSITU FLUID VELOCITY FROM NMR MEASUREMENTS
    Publication number: 20090195246
    Abstract: A method for estimating a viscosity of a fluid in a rock formation, the method including: performing a first nuclear magnetic resonance (NMR) measurement with zero magnetic field gradient on at least a portion of a sample of the rock formation to obtain a first distribution of transverse relaxation time constants; estimating a first diffusive couple factor from the first distribution; replacing the fluid of the at least a portion of the sample with another fluid; performing a second NMR measurement with zero magnetic field gradient on the at least a portion of the sample containing the another fluid to obtain a second distribution of transverse relaxation time constants; estimating a second diffusive couple factor from the second distribution; and estimating the viscosity of the fluid using the first diffusive couple factor and the second diffusive couple factor.
    Type: Application
    Filed: February 1, 2008
    Publication date: August 6, 2009
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Segun A. Jebutu