Patents by Inventor Ha Dinh Nguyen

Ha Dinh Nguyen 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 for estimating reservoir formation quality using seismic velocities
    Patent number: 11035966
    Abstract: A method for estimating reservoir quality from a reflection seismic survey includes determining seismic interval velocity (or their inverse, interval transit time “ITT”) with respect to depth from the reflection seismic survey. A normal compaction trend of the seismic interval velocity with respect to depth is determined. A fractional amount of sand and a fractional amount of shale at at least one depth is determined based on deviation of the seismic interval velocity (or ITT) at the at least one depth from the normal compaction trend.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: June 15, 2021
    Inventor: Ha Dinh Nguyen
  • Method for analysing pore pressure in shale formations
    Patent number: 10385678
    Abstract: The invention relates to a method for estimating pore pressure in subterranean shale formations such as gas- or organic-rich shale where pore pressure predictions based on either a resistivity log or a porosity-indicative log such as sonic tend to be inaccurate. The method involves combining the resistivity log with the porosity-indicative log using a Eaton formula to give an estimate of pore pressure which is accurate both for conventional water wet shale and for organic-rich shale.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: August 20, 2019
    Assignee: CONOCOPHILLIPS COMPANY
    Inventor: Ha Dinh Nguyen
  • METHOD FOR ESTIMATING RESERVOIR FORMATION QUALITY USING SEISMIC VELOCITIES
    Publication number: 20190113640
    Abstract: A method for estimating reservoir quality from a reflection seismic survey includes determining seismic interval velocity (or their inverse, interval transit time “ITT”) with respect to depth from the reflection seismic survey. A normal compaction trend of the seismic interval velocity with respect to depth is determined. A fractional amount of sand and a fractional amount of shale at at least one depth is determined based on deviation of the seismic interval velocity (or ITT) at the at least one depth from the normal compaction trend.
    Type: Application
    Filed: October 10, 2018
    Publication date: April 18, 2019
    Inventor: Ha Dinh Nguyen
  • METHOD FOR ANALYSING PORE PRESSURE IN SHALE FORMATIONS
    Publication number: 20150267527
    Abstract: The invention relates to a method for estimating pore pressure in subterranean shale formations such as gas- or organic-rich shale where pore pressure predictions based on either a resistivity log or a porosity-indicative log such as sonic tend to be inaccurate. The method involves combining the resistivity log with the porosity-indicative log using a Eaton formula to give an estimate of pore pressure which is accurate both for conventional water wet shale and for organic-rich shale.
    Type: Application
    Filed: March 21, 2014
    Publication date: September 24, 2015
    Applicant: CONOCOPHILLIPS COMPANY
    Inventor: Ha Dinh Nguyen