Patents by Inventor Francisco E. Fragachan

Francisco E. Fragachan 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).

  • Publication number: 20230235652
    Abstract: An integrated hydraulic fracture design model that utilizes elastic fluids with high proppant suspension and low required power for injection into a hydrocarbon-bearing, subterranean formation. The integrated physics-based approach utilizes a hybrid friction model to compute viscous and elastic behavior to estimate pressure losses at different pumping conditions coupled with a novel geomechanical model capable of modeling proppant transport with elastic fluids in planar hydraulic fractures and natural fractures. An integrated process to optimize hydraulic fracture design evaluates and quantifies the proppant-carrying capacity of elastic fluids and its impact on the proppant transport process, and low water requirements.
    Type: Application
    Filed: December 8, 2022
    Publication date: July 27, 2023
    Inventors: Oswaldo J. Perez, Francisco E. Fragachan
  • Patent number: 11566504
    Abstract: An integrated hydraulic fracture design model that utilizes elastic fluids with high proppant suspension and low required power for injection into a hydrocarbon-bearing, subterranean formation. The integrated physics-based approach utilizes a hybrid friction model to compute viscous and elastic behavior to estimate pressure losses at different pumping conditions coupled with a novel geomechanical model capable of modeling proppant transport with elastic fluids in planar hydraulic fractures and natural fractures. An integrated process to optimize hydraulic fracture design evaluates and quantifies the proppant-carrying capacity of elastic fluids and its impact on the proppant transport process, and low water requirements.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: January 31, 2023
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Oswaldo J. Perez, Francisco E. Fragachan
  • Patent number: 10914139
    Abstract: The disclosure pertains to the increasing the amount of stimulated efficiency and production from a given well area by determining a number of diverter slugs and the timing for the injection of the slugs for the given well area. A number of data sets are determined using Monte Carlo analysis, each data set including a quantity of diversion slugs and the timing for the injection of the diversion slugs. A simulation is performed on a plurality of the data sets to determine the production outcome of employing the data set in a stimulation job. The results of the simulation are used to determine the optimized data set for the stimulation job.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: February 9, 2021
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventors: Mojtaba Pordel Shahri, Jian Huang, Clayton S. Smith, Francisco E. Fragachan
  • Publication number: 20210017844
    Abstract: An integrated hydraulic fracture design model that utilizes elastic fluids with high proppant suspension and low required power for injection into a hydrocarbon-bearing, subterranean formation. The integrated physics-based approach utilizes a hybrid friction model to compute viscous and elastic behavior to estimate pressure losses at different pumping conditions coupled with a novel geomechanical model capable of modeling proppant transport with elastic fluids in planar hydraulic fractures and natural fractures. An integrated process to optimize hydraulic fracture design evaluates and quantifies the proppant-carrying capacity of elastic fluids and its impact on the proppant transport process, and low water requirements.
    Type: Application
    Filed: August 13, 2019
    Publication date: January 21, 2021
    Inventors: Oswaldo J. Perez, Francisco E. Fragachan
  • Patent number: 10597982
    Abstract: The disclosure pertains to the determining the efficiency of stimulation operations in a hydrocarbon well. Stimulation is performed in a hydrocarbon well and various data is obtained therefrom. The data is used to develop a simulation of fluid flow in the well and the simulation is used to model a synthetic tracer log, which corresponds to a modeled level of efficiency. Numerous synthetic tracer logs may be generated in this way so that tracer logs are available for a variety of different stimulation efficiencies. In order to determine the efficiency of an actual stimulation, the real tracer log of the stimulated well may be compared to the synthetic tracer logs in search of a match. When the real tracer log matches a synthetic tracer log the modeled efficiency of the synthetic log may be used as the actual or true efficiency of the real well stimulation.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: March 24, 2020
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Mojtaba Pordel Shahri, Jian Huang, Clayton S. Smith, Francisco E. Fragachan
  • Patent number: 10221649
    Abstract: The disclosure pertains to the design and implementation of a diversion procedure for geologic openings. Embodiments involve performing a screening analysis to determine if a well or formation is appropriate for stimulation. If a well is appropriate, a modeling analysis is performed to determine candidate parameters for a diversion procedure. The analysis is divided into two segments, a dry analysis of jamming and a wet and full-physics-based analysis of plugging. The jamming analysis provides candidates to the plugging analysis to reduce the work of the more intensive wet full-physics modeling.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: March 5, 2019
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Mojtaba Pordel Shahri, Clayton S. Smith, Francisco E. Fragachan, Ovunc Mutlu
  • Publication number: 20180238147
    Abstract: The disclosure pertains to the increasing the amount of stimulated efficiency and production from a given well area by determining a number of diverter slugs and the timing for the injection of the slugs for the given well area. A number of data sets are determined using Monte Carlo analysis, each data set including a quantity of diversion slugs and the timing for the injection of the diversion slugs. A simulation is performed on a plurality of the data sets to determine the production outcome of employing the data set in a stimulation job. The results of the simulation are used to determine the optimized data set for the stimulation job.
    Type: Application
    Filed: February 22, 2017
    Publication date: August 23, 2018
    Inventors: Mojtaba Pordel Shahri, Jian Huang, Clayton S. Smith, Francisco E. Fragachan
  • Publication number: 20170122077
    Abstract: The disclosure pertains to the determining the efficiency of stimulation operations in a hydrocarbon well. Stimulation is performed in a hydrocarbon well and various data is obtained therefrom. The data is used to develop a simulation of fluid flow in the well and the simulation is used to model a synthetic tracer log, which corresponds to a modeled level of efficiency. Numerous synthetic tracer logs may be generated in this way so that tracer logs are available for a variety of different stimulation efficiencies. In order to determine the efficiency of an actual stimulation, the real tracer log of the stimulated well may be compared to the synthetic tracer logs in search of a match. When the real tracer log matches a synthetic tracer log the modeled efficiency of the synthetic log may be used as the actual or true efficiency of the real well stimulation.
    Type: Application
    Filed: October 25, 2016
    Publication date: May 4, 2017
    Inventors: Mojtaba Pordel Shahri, Jian Huang, Clayton S. Smith, Francisco E. Fragachan
  • Publication number: 20170124228
    Abstract: The disclosure pertains to the design and implementation of a diversion procedure for geologic openings. Embodiments involve performing a screening analysis to determine if a well or formation is appropriate for stimulation. If a well is appropriate, a modeling analysis is performed to determine candidate parameters for a diversion procedure. The analysis is divided into two segments, a dry analysis of jamming and a wet and full-physics-based analysis of plugging. The jamming analysis provides candidates to the plugging analysis to reduce the work of the more intensive wet full-physics modeling.
    Type: Application
    Filed: November 3, 2015
    Publication date: May 4, 2017
    Inventors: Mojtaba Pordel Shahri, Clayton S. Smith, Francisco E. Fragachan, Ovunc Mutlu