Patents Assigned to ISODRILL, INC.
  • Patent number: 11499381
    Abstract: A gap sub uses a plurality of insulating members in conjunction with at least two metallic members to effect a mechanically and electrically robust configuration. The gap sub includes an upper end portion, a lower end portion, an outer sleeve, an inner sleeve, an insulating outer washer, an insulating inner washer, and an insulating spider. The insulating outer washer is configured to transfer a first axial load between the upper end portion and the outer sleeve. The insulating inner washer is configured to transfer a second axial load between the inner sleeve and the lower end portion. The insulating spider is configured to transfer a torsional load between outer sleeve and the inner sleeve.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: November 15, 2022
    Assignee: ISODRILL, INC.
    Inventors: Saad Bargach, Stephen D. Bonner, Madhusudhan Nagula
  • Publication number: 20210040842
    Abstract: A gap sub uses a plurality of insulating members in conjunction with at least two metallic members to effect a mechanically and electrically robust configuration. The gap sub includes an upper end portion, a lower end portion, an outer sleeve, an inner sleeve, an insulating outer washer, an insulating inner washer, and an insulating spider. The insulating outer washer is configured to transfer a first axial load between the upper end portion and the outer sleeve. The insulating inner washer is configured to transfer a second axial load between the inner sleeve and the lower end portion. The insulating spider is configured to transfer a torsional load between outer sleeve and the inner sleeve.
    Type: Application
    Filed: October 15, 2020
    Publication date: February 11, 2021
    Applicant: ISODRILL, INC.
    Inventors: Saad Bargach, Stephen D. Bonner, Madhusudhan Nagula
  • Patent number: 9657561
    Abstract: A dynamically controllable variable displacement axial piston pump is described. In an embodiment, the pump comprises a rotating cylinder with hydraulic pistons that contact the face of a swash plate. The angle of the swash plate can be controlled to thereby control the movement of the pistons, the displacement of the pump, and the power generated by the pump. The dynamically controllable variable displacement axial piston pump may be used in combination with a rotary steerable apparatus, including such an apparatus as described herein that uses hydraulic pistons to actuate the deflection of the bit, or in combination with other downhole tools and devices. When used down hole in a drill string with a drilling mud powered turbine, the dynamically controllable variable displacement pump limits and regulates the power provided to the tool over a wide range of drilling mud weights and flow rates.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: May 23, 2017
    Assignee: ISODRILL, INC.
    Inventors: Saad Bargach, Stephen D. Bonner, Raymond V. Nold, III, James P. Massey, Jon A. Brunetti