Patents by Inventor Mathieu Fradet

Mathieu Fradet 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: 20240229643
    Abstract: Systems and methods for measuring multiphase flow of a fluid mixture in a downhole pipe of an oil/gas/water well are presented. According to one aspect, time-series measurement of the flow velocity and composition at a plurality of discrete azimuths of the pipe are measured. Measured time-correlated velocity and composition data are used to identify fluid components present in the pipe and estimate cross-sectional area and velocity of each of the fluid components. According to another aspect, pressure and temperature at the downhole pipe are measured, and used to calculate the mass density of each fluid component. For each of the fluid components, the cross-sectional area, velocity, and mass density are used to generate a corresponding mass flow rate. An algorithm with a set of parameters tuned to specific flow regimes is used to map the sensed data from the time-scrics measurements into the mass flow rate of each fluid component.
    Type: Application
    Filed: March 28, 2022
    Publication date: July 11, 2024
    Inventors: Stewart SHERRIT, Luis Phillipe C.F. TOSI, Kristopher V. SHERRILL, Mina RAIS-ZADEH, Jeffery L. HALL, Jacob F. TIMS, Mathieu FRADET, Ryan M. BRIGGS, Christopher R. YAHNKER
  • Publication number: 20240125636
    Abstract: Systems and methods for measuring flow velocity of a fluid mixture in a lateral section of an oil/gas/water well with a dual beam laser doppler velocimetry (LVD) based flow sensor are presented. According to one aspect, the flow velocity is measured by tracking movement of particles and/or features in the fluid mixture while traversing an interference pattern generated by the intersection of two separate coherent beams that are perpendicular to a direction of the flow. Flow velocity is derived based on a time it takes the particles to traverse consecutive fringes of the interference pattern as indicated by intensity peaks detected at the photodetector. The LDV-based flow sensor may be rotatable to measure flow velocities at different angular positions of a pipe in a lateral section of an oil well, rotation provided by rotation of an element of a mobile vessel to which the flow sensor is rigidly coupled.
    Type: Application
    Filed: March 25, 2022
    Publication date: April 18, 2024
    Inventors: Mathieu FRADET, Luis Phillipe C.F. TOSI, Mina RAIS-ZADEH, Kristopher V SHERRILL, Darius MODARRESS, Pavel SVITEK, Katayoon MODARRESS RUBY
  • Publication number: 20230408406
    Abstract: Disclosed herein is a spectroscopy device incorporating a mid-infrared laser. In one particular embodiment a spectroscopy device is provided including: a substrate; a single mode laser positioned on the substrate; a single mode detector positioned opposite to the single mode laser on the substrate. A gap is formed between the single mode laser and the single mode detector and a substance is positioned in the gap. The single mode laser is configured to output a tunable narrow wavelength of radiation towards the detector and when the single mode laser outputs a wavelength of radiation overlapping one of the substance's rotational-vibrational energy levels, the substance at least partially absorbs the radiation. The single mode detector is configured to measure the amount of narrow wavelength radiation that is not absorbed by the substance between the single mode detector and the single mode laser.
    Type: Application
    Filed: June 20, 2023
    Publication date: December 21, 2023
    Applicant: California Institute of Technology
    Inventors: Mathieu Fradet, Ryan M. Briggs, Kazi M. Islam
  • Publication number: 20230212941
    Abstract: Systems and methods for measuring flow velocity of a fluid mixture in a lateral section of an oil/gas well are presented. The flow velocity is measured by tracking movement of particles and/or features in the fluid mixture via visible and/or infrared imaging sensors of a camera-based flow sensor. According to another aspect, the imaging sensors detect back-reflected light by the particles and/or features, the light emitted by illuminators in the visible and/or infrared spectrum. According to yet another aspect, the particles are quantum dot illuminators injected into the fluid mixture, the flow velocity based on a time-of-flight of the quantum dots. The camera-based flow sensor may be rotatable to measure flow velocities at different angular positions of a pipe, rotation provided by rotation of an element of a mobile vessel to which the flow sensor is rigidly coupled.
    Type: Application
    Filed: June 11, 2021
    Publication date: July 6, 2023
    Inventors: Mathieu FRADET, Ryan M. BRIGGS, Linda Y. DEL CASTILLO, Mina RAIS-ZADEH
  • Patent number: 11456573
    Abstract: Single-mode distributed-feedback (DFB) lasers including single mode DFB waveguides with tapered grating structures are provided herein. Tapered grating structures provide for single mode DFB waveguides with predictable single mode operation. Uniform grating structures may provide for single mode operation, however DFB waveguides implementing uniform grating structures may operate at one of two single modes. Advantageously, DFB waveguides with tapered gratings operate with a spectrally narrow single mode at the same predictable single mode for all DFB waveguides with substantially identical specifications. Such predictability may lead to increased yield during manufacture of DFB waveguides with tapered gratings.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: September 27, 2022
    Assignee: California Institute of Technology
    Inventors: Ryan M. Briggs, Clifford F. Frez, Mathieu Fradet
  • Publication number: 20210104869
    Abstract: Single-mode distributed-feedback (DFB) lasers including single mode DFB waveguides with tapered grating structures are provided herein. Tapered grating structures provide for single mode DFB waveguides with predictable single mode operation. Uniform grating structures may provide for single mode operation, however DFB waveguides implementing uniform grating structures may operate at one of two single modes. Advantageously, DFB waveguides with tapered gratings operate with a spectrally narrow single mode at the same predictable single mode for all DFB waveguides with substantially identical specifications. Such predictability may lead to increased yield during manufacture of DFB waveguides with tapered gratings.
    Type: Application
    Filed: October 1, 2020
    Publication date: April 8, 2021
    Applicant: California Institute of Technology
    Inventors: Ryan M Briggs, Clifford F. Frez, Mathieu Fradet