Patents by Inventor Fred E. Dupriest

Fred E. Dupriest 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).

  • Patent number: 8672057
    Abstract: Methods for drilling and treating for lost returns continuously while drilling are provided. High fluid loss drilling fluid is used, along with particulate material that forms an immobile mass in hydraulic fractures to prevent their growth. The particulate material may be selected based on the predicted size of a hydraulic fracture, based on particle size to minimize fines, based on specific gravity to attain high solids content for a selected fluid density, and/or based on permeability of the particles to attain a high spurt loss.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: March 18, 2014
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Fred E. DuPriest, Martin V. Smith, Sabine C. Zeilinger, Chinar R. Aphale
  • Publication number: 20130146294
    Abstract: Methods for drilling and treating for lost returns continuously while drilling are provided. High fluid loss drilling fluid is used, along with particulate material that forms an immobile mass in hydraulic fractures to prevent their growth. The particulate material may be selected based on the predicted size of a hydraulic fracture, based on particle size to minimize fines, based on specific gravity to attain high solids content for a selected fluid density, and/or based on permeability of the particles to attain a high spurt loss.
    Type: Application
    Filed: February 4, 2013
    Publication date: June 13, 2013
    Inventors: Fred E. DuPriest, Martin V. Smith, Sabine C. Zeilinger, Chinar R. Aphale
  • Patent number: 8393411
    Abstract: Methods for drilling and treating for lost returns continuously while drilling are provided. High fluid loss drilling fluid is used, along with particulate material that forms an immobile mass in hydraulic fractures to prevent their growth. The particulate material may be selected based on the predicted size of a hydraulic fracture, based on particle size to minimize fines, based on specific gravity to attain high solids content for a selected fluid density, and/or based on permeability of the particles to attain a high spurt loss.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: March 12, 2013
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Fred E. Dupriest, Martin V. Smith, Sabine C. Zeilinger, Chinar R. Aphale
  • Publication number: 20120160497
    Abstract: Fluids for use in hydrocarbon recovery operations include water and at least one organo-anionic surfactant. The fluids may be used in methods for conducting hydrocarbon recovery operations, such as drilling operations, completion operations, production operations, injection operations. The fluid may be adapted to remediate a NAF filter cake. Exemplary organo-anionic surfactants may include one or more of monoethanol ammonium alkyl aromatic sulfonic acid, monoethanol ammonium alkyl carboxylic acid, and mixtures thereof.
    Type: Application
    Filed: August 10, 2010
    Publication date: June 28, 2012
    Inventors: Ramesh Varadaraj, Sabine C. Zeilinger, Fred E. Dupriest
  • Patent number: 7896105
    Abstract: A method associated with the production of hydrocarbons. In one embodiment, a method for drilling a well is described. The method includes identifying a field having hydrocarbons. Then, one or more wells are drilled to a subsurface location in the field to provide fluid flow paths for hydrocarbons to a production facility. The drilling is performed by (i) estimating a drill rate for one of the wells; (ii) determining a difference between the estimated drill rate and an actual drill rate; (iii) obtaining mechanical specific energy (MSE) data and other measured data during the drilling of the one of the wells; (iv) using the obtained MSE data and other measured data to determine one of a plurality of limiters that limit the drill rate; (v) adjusting drilling operations to mitigate one of the plurality of limiters; (vi) and iteratively repeating steps (i)-(v) until the subsurface formation has been reached by the drilling operations.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: March 1, 2011
    Assignee: ExxonMobil Upstream Research Company
    Inventor: Fred E. Dupriest
  • Patent number: 7857047
    Abstract: A method associated with the production of hydrocarbons. In one embodiment, method for drilling a well is described. The method includes performing drilling operations at one or more wells to a subsurface location in a field to provide fluid flow paths for hydrocarbons to a production facility. The drilling is performed by (i) obtaining mechanical specific energy (MSE) data and other measured data during the drilling operations; (ii) using the obtained MSE data and other measured data to determine the existence of at least one limiter; (iii) obtaining and examining lithology data for the well; (iv) identifying a primary limiter of the at least one limiter based on the lithology data; and (v) adjusting drilling operations to mitigate at least one of the at least limiter.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: December 28, 2010
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Stephen M. Remmert, Joseph W. Witt, Fred E. Dupriest
  • Publication number: 20100181073
    Abstract: Methods for drilling and treating for lost returns continuously while drilling are provided. High fluid loss drilling fluid is used, along with particulate material that forms an immobile mass in hydraulic fractures to prevent their growth. The particulate material may be selected based on the predicted size of a hydraulic fracture, based on particle size to minimize fines, based on specific gravity to attain high solids content for a selected fluid density, and/or based on permeability of the particles to a high spurt loss.
    Type: Application
    Filed: June 17, 2008
    Publication date: July 22, 2010
    Inventors: Fred E. Dupriest, Martin V. Smith, Sabine C. Zeilinger, Chinar R. Aphale
  • Publication number: 20090250264
    Abstract: A method associated with the production of hydrocarbons. In one embodiment, a method for drilling a well is described. The method includes identifying a field having hydrocarbons. Then, one or more wells are drilled to a subsurface location in the field to provide fluid flow paths for hydrocarbons to a production facility. The drilling is performed by (i) estimating a drill rate for one of the wells; (ii) determining a difference between the estimated drill rate and an actual drill rate; (iii) obtaining mechanical specific energy (MSE) data and other measured data during the drilling of the one of the wells; (iv) using the obtained MSE data and other measured data to determine one of a plurality of limiters that limit the drill rate; (v) adjusting drilling operations to mitigate one of the plurality of limiters; (vi) and iteratively repeating steps (i)-(v) until the subsurface formation has been reached by the drilling operations.
    Type: Application
    Filed: October 5, 2006
    Publication date: October 8, 2009
    Inventor: Fred E. Dupriest
  • Publication number: 20080105424
    Abstract: A method associated with the production of hydrocarbons. In one embodiment, method for drilling a well is described. The method includes performing drilling operations at one or more wells to a subsurface location in a field to provide fluid flow paths for hydrocarbons to a production facility. The drilling is performed by (i) obtaining mechanical specific energy (MSE) data and other measured data during the drilling operations; (ii) using the obtained MSE data and other measured data to determine the existence of at least one limiter; (iii) obtaining and examining lithology data for the well; (iv) identifying a primary limiter of the at least one limiter based on the lithology data; and (v) adjusting drilling operations to mitigate at least one of the at least limiter.
    Type: Application
    Filed: September 17, 2007
    Publication date: May 8, 2008
    Inventors: Steven M. Remmert, Joseph W. Witt, Fred E. Dupriest