Patents by Inventor Roger L. Schultz

Roger L. Schultz 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: 10655427
    Abstract: A method of restoring flow through an opening in a well, the opening being blocked by a plugging device, can include conveying a well tool into the well, contacting the plugging device with the well tool, and permitting flow through the opening as a result of the contacting step. Another method of restoring flow through an opening blocked by a plugging device in a well can include conveying a well tool into the well, reducing pressure in the well with the well tool, and permitting flow through the opening as a result of the pressure reducing step.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: May 19, 2020
    Assignee: THRU TUBING SOLUTIONS, INC.
    Inventors: Roger L. Schultz, Brock W. Watson, Andrew M. Ferguson, Gary P. Funkhouser
  • Patent number: 10641057
    Abstract: A method of restoring flow through an opening in a well, the opening being blocked by a plugging device, can include conveying a well tool into the well, contacting the plugging device with the well tool, and permitting flow through the opening as a result of the contacting step. Another method of restoring flow through an opening blocked by a plugging device in a well can include conveying a well tool into the well, reducing pressure in the well with the well tool, and permitting flow through the opening as a result of the pressure reducing step.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: May 5, 2020
    Assignee: THRU TUBING SOLUTIONS, INC.
    Inventors: Roger L. Schultz, Brock W. Watson, Andrew M. Ferguson, Gary P. Funkhouser
  • Patent number: 10641070
    Abstract: A method of controlling flow in a well can include a device introduced into the well being conveyed by flow in the well, and the device having a plurality of fibers extending outwardly from a body, the fibers being retained by a retainer. A well system can include a flow conveyed device conveyed through a tubular string by flow in the tubular string, and the flow conveyed device including a body with a plurality of fibers extending outwardly from the body. A retainer can at least partially enclose the device. A flow conveyed device for use in a well can include a body, and a plurality of fibers joined to the body, each of the fibers having a lateral dimension that is substantially smaller than a size of the body.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: May 5, 2020
    Assignee: THRU TUBING SOLUTIONS, INC.
    Inventors: Roger L. Schultz, Brock W. Watson, Andrew M. Ferguson, Gary P. Funkhouser
  • Patent number: 10641069
    Abstract: A method of controlling flow in a well can include a device introduced into the well being conveyed by flow in the well, and the device having a plurality of fibers extending outwardly from a body. A well system can include a flow conveyed device conveyed through a tubular string by flow in the tubular string, and the flow conveyed device including a body with a plurality of fibers extending outwardly from the body. A flow conveyed device for use in a well can include a degradable body, and a plurality of fibers joined to the body, each of the fibers having a lateral dimension that is substantially smaller than a size of the body.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: May 5, 2020
    Assignee: THRU TUBING SOLUTIONS, INC.
    Inventors: Roger L. Schultz, Brock W. Watson, Andrew Ferguson
  • Publication number: 20200124223
    Abstract: A method of plugging at least one undesired opening in a fluid conduit can include introducing one or more plugging devices into the conduit, conveying the plugging devices by flow to the opening, and blocking the flow through the opening with the plugging devices. A system for plugging at least one undesired opening in a fluid conduit can include a deployment apparatus configured to introduce one or more plugging devices into the conduit, a sensor that measures a physical parameter indicative of leakage from the conduit, and a controller that activates an actuator of the deployment apparatus in response to receipt from the sensor of an indication of leakage from the conduit.
    Type: Application
    Filed: April 25, 2018
    Publication date: April 23, 2020
    Inventors: Robert PHILLIS, Randy C TOLMAN, Roger L. SCHULTZ, Andrew M. FERGUSON, Brock W. WATSON
  • Publication number: 20200109809
    Abstract: A method of plugging at least one undesired opening in a fluid vessel can include introducing one or more plugging devices into the vessel, conveying the plugging devices by flow to the opening, and blocking the flow through the opening with the plugging devices. A system for plugging at least one undesired opening in a fluid vessel can include a deployment apparatus configured to introduce one or more plugging devices into the vessel, a sensor that measures a physical parameter indicative of leakage from the vessel, and a controller that activates an actuator of the deployment apparatus in response to receipt from the sensor of an indication of leakage from the vessel.
    Type: Application
    Filed: April 25, 2018
    Publication date: April 9, 2020
    Inventors: Randy C TOLMAN, Roger L. SCHULTZ, Brock W. WATSON
  • Patent number: 10513900
    Abstract: A vortex-controlled variable flow resistance device ideal for use in a backpressure tool for advancing drill string in extended reach downhole operations. The characteristics of the pressure waves generated by the device are controlled by the growth and decay of vortices in the vortex chamber(s) of a flow path. The flow path includes a switch, such as a bi-stable fluidic switch, for reversing the direction of the flow in the vortex chamber. The flow path may include multiple vortex chambers, and the device may include multiple flow paths. A hardened insert in the outlet of the vortex chamber resists erosion. This device generates backpressures of short duration and slower frequencies approaching the resonant frequency of the drill string, which maximizes axial motion in the drill sting and weight on the bit. Additionally, fluid pulses produced by the tool enhance debris removal ahead of the bit.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: December 24, 2019
    Assignee: Thru Tubing Solutions, Inc.
    Inventors: Roger L. Schultz, Andrew M. Ferguson, Michael L. Connell
  • Patent number: 10513902
    Abstract: A method can include deploying a plugging device into a well, the plugging device including a body, and an outer material enveloping the body and having a greater flexibility than a material of the body, and conveying the plugging device by fluid flow into engagement with the opening, the body preventing the plugging device from extruding through the opening, and the outer material blocking the fluid flow between the body and the opening. In another method, the plugging device can include at least two bodies, and a washer element connected between the bodies, the washer element being generally disk-shaped and comprising a hole, a line extending through the hole and connected to the bodies on respective opposite sides of the washer element, the washer element preventing the plugging device from being conveyed through the opening, and the washer element blocking the fluid flow through the opening.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: December 24, 2019
    Assignee: Thru Tubing Solutions, Inc.
    Inventors: Gary P. Funkhouser, Brock W. Watson, Andrew M. Ferguson, Jenna N. Robertson, Roger L. Schultz
  • Patent number: 10513653
    Abstract: A flow conveyed plugging device for use in a well, the device can include a body, and one or more lines extending outwardly from the body, each of the lines having a lateral dimension that is substantially smaller than a size of the body. A method of plugging an opening in a well can include deploying at least one flow conveyed plugging device into the well, the flow conveyed plugging device including a body and, extending outwardly from the body, at least one of the group consisting of: a) one or more fibers and b) one or more lines, the flow conveyed plugging device being conveyed by flow in the well into sealing engagement with the opening. Another flow conveyed plugging device can include a body, and fibers extending outwardly from the body. The flow conveyed plugging device degrades and thereby permits flow through an opening in the well.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: December 24, 2019
    Assignee: Thru Tubing Solutions, Inc.
    Inventors: Roger L. Schultz, Brock W. Watson, Andrew M. Ferguson, Gary P. Funkhouser
  • Publication number: 20190345769
    Abstract: A rotary actuator assembly can include a fluid motor with a rotor that displaces with hypocyclic precessional motion within a stator in response to fluid flow through the fluid motor, and a gear reducer section including an input gear that is fixed relative to the rotor and displaces with the hypocyclic precessional motion relative to an output gear. Another rotary actuator assembly can include a fluid motor with a rotor having a central longitudinal axis that rotates about a central longitudinal axis of a stator, and a gear reducer section including an input gear that rotates with the rotor and displaces relative to an output gear, and the input gear having the same central longitudinal axis as the rotor. A well system can include at least two fluid motors, and fluid flow through one fluid motor causes rotation of the other fluid motor in the well.
    Type: Application
    Filed: May 10, 2019
    Publication date: November 14, 2019
    Inventors: Roger L. SCHULTZ, Brock W. WATSON, Brett FEARS
  • Publication number: 20190345770
    Abstract: A rotary actuator assembly can include a fluid motor with a rotor that displaces with hypocyclic precessional motion within a stator in response to fluid flow through the fluid motor, and a gear reducer section including an input gear that is fixed relative to the rotor and displaces with the hypocyclic precessional motion relative to an output gear. Another rotary actuator assembly can include a fluid motor with a rotor having a central longitudinal axis that rotates about a central longitudinal axis of a stator, and a gear reducer section including an input gear that rotates with the rotor and displaces relative to an output gear, and the input gear having the same central longitudinal axis as the rotor. A well system can include at least two fluid motors, and fluid flow through one fluid motor causes rotation of the other fluid motor in the well.
    Type: Application
    Filed: May 10, 2019
    Publication date: November 14, 2019
    Inventors: Roger L. SCHULTZ, Brock W. WATSON, Brett FEARS
  • Publication number: 20190316449
    Abstract: A well completion system can include fluid flow through a flow passage, and one or more diverters deployed into the flow passage downhole of a perforating assembly, the diverters and the perforating assembly being concurrently displaced by the fluid flow. A perforating assembly can include a perforator, and a control module including a memory, a motion sensor, a timer, and a controller that causes the perforator to fire in response to a lack of motion for a predetermined period of time. A well completion method can include flowing fluid through a flow passage, deploying a perforating assembly into the flow passage, and displacing the perforating assembly through the flow passage by the fluid flow at a predetermined flow rate for a predetermined flow time, and ceasing the fluid flow at an end of the predetermined flow time, thereby placing the perforating assembly at a desired location for forming perforations.
    Type: Application
    Filed: April 4, 2019
    Publication date: October 17, 2019
    Inventors: Roger L. SCHULTZ, Randy C TOLMAN, Andrew M. FERGUSON
  • Patent number: 10415324
    Abstract: A vortex-controlled variable flow resistance device ideal for use in a backpressure tool for advancing drill string in extended reach downhole operations. The characteristics of the pressure waves generated by the device are controlled by the growth and decay of vortices in the vortex chamber(s) of a flow path. The flow path is designed to produce alternating primary and secondary vortices—one clockwise and one counter-clockwise—where the primary vortex is stronger and produces higher backpressure than the secondary vortex. This in turn generates alternating weak and strong pressure pulses in the drill string. The weak pulses may be barely perceptible so that the effective frequency of the pulses is determined by the stronger primary vortices.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: September 17, 2019
    Assignee: Thru Tubing Solutions, Inc.
    Inventors: Roger L. Schultz, Andrew M. Ferguson
  • Publication number: 20190271204
    Abstract: A method of dislodging a tubular string or well equipment connected to the tubular string can include connecting a dislodging tool in the tubular string, so that a flow passage of the dislodging tool extends through the tubular string, deploying a plug into the dislodging tool, applying a pressure differential across the plug, thereby displacing the plug through a seat of the dislodging tool, and dislodging the tubular string or the component in response to the displacing. A dislodging system can include a dislodging tool connected as part of a tubular string, the dislodging tool including a flow passage and a seat configured to sealingly engage a plug deployed into the tubular string, and at least one of a jarring force, load, impact, shock wave, elastic strain release and pressure pulse being generated in the tubular string in response to displacement of the plug through the seat.
    Type: Application
    Filed: December 26, 2018
    Publication date: September 5, 2019
    Inventors: Brock W. WATSON, Roger L. SCHULTZ, Gregory A. KLIEWER
  • Patent number: 10400565
    Abstract: A method for fracturing a wellbore in a formation, including positioning one or more bidirectional rotary sleeves on tubular members into the wellbore; engaging a unidirectional rotary source in a first position with a first bidirectional rotary sleeve of the one or more bidirectional rotary sleeves; operating the unidirectional rotary source to rotate the first bidirectional rotary sleeve in a first rotational direction to open at least one port in the first bidirectional rotary sleeve for providing an open fluid pathway between the first bidirectional rotary sleeve and the formation; pumping fluid through the tubular members and through the opened port to fracture the formation; engaging the unidirectional rotary source in a second position with the first bidirectional rotary sleeve; and operating the unidirectional rotary source to rotate first bidirectional rotary sleeve in a second rotational direction to close the at least one port in the first bidirectional rotary sleeve.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: September 3, 2019
    Assignee: Thru Tubing Solutions, Inc.
    Inventors: Roger L. Schultz, Brock Watson, Andrew Ferguson, Stanley W. Loving
  • Publication number: 20190257172
    Abstract: A system for use with a subterranean well can include a deployment apparatus configured to deploy one or more plugging devices into a fluid flow. The plugging devices are conveyed into the well by the fluid flow. The deployment apparatus can include multiple queues, different numbers of the plugging devices being contained in respective different ones of the queues. A method of deploying plugging devices can include connecting multiple queues of the plugging devices to a conduit, and deploying the plugging devices from a selected combination of the queues into the conduit. In another system, each of the plugging devices may include a body, and lines or fibers extending outwardly from the body.
    Type: Application
    Filed: May 3, 2019
    Publication date: August 22, 2019
    Inventors: Brock W. WATSON, Gary P. FUNKHOUSER, Roger L. SCHULTZ, Gregory A. KLIEWER
  • Patent number: 10364634
    Abstract: A hydraulic jar for delivering impacts downhole. The jarring mechanism includes a cup-type piston that moves through a seal bore. The cup is deformable in response to fluid pressure so that it expands each time it moves through the seal bore to compensate for wear on the lip. Since only minimum interference is required between the piston and seal bore, less material may be used. This reduces the force required to reset the tool, which is particularly advantageous in horizontal wells. The seal bore may be slightly wider at the exit; the cup expands to this exit diameter, ensuring an interference fit as the cup travels back through the smaller diameter entry section. The entry end of the seal bore may include longitudinal grooves. This prevents the piston cup from rupturing by preventing a fluid seal around the lip until the most of cup is inside the seal bore.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: July 30, 2019
    Assignee: Thru Tubing Solutions, Inc.
    Inventors: Brock W. Watson, Roger L. Schultz
  • Publication number: 20190162034
    Abstract: A method can include deploying a plugging device into a well, the plugging device including a body, and an outer material enveloping the body and having a greater flexibility than a material of the body, and conveying the plugging device by fluid flow into engagement with the opening, the body preventing the plugging device from extruding through the opening, and the outer material blocking the fluid flow between the body and the opening. In another method, the plugging device can include at least two bodies, and a washer element connected between the bodies, the washer element being generally disk-shaped and comprising a hole, a line extending through the hole and connected to the bodies on respective opposite sides of the washer element, the washer element preventing the plugging device from being conveyed through the opening, and the washer element blocking the fluid flow through the opening.
    Type: Application
    Filed: February 1, 2019
    Publication date: May 30, 2019
    Inventors: Gary P. FUNKHOUSER, Brock W. WATSON, Andrew M. FERGUSON, Jenna N. ROBERTSON, Roger L. SCHULTZ
  • Publication number: 20190162035
    Abstract: A method can include deploying a plugging device into a well, the plugging device including a body, and an outer material enveloping the body and having a greater flexibility than a material of the body, and conveying the plugging device by fluid flow into engagement with the opening, the body preventing the plugging device from extruding through the opening, and the outer material blocking the fluid flow between the body and the opening. In another method, the plugging device can include at least two bodies, and a washer element connected between the bodies, the washer element being generally disk-shaped and comprising a hole, a line extending through the hole and connected to the bodies on respective opposite sides of the washer element, the washer element preventing the plugging device from being conveyed through the opening, and the washer element blocking the fluid flow through the opening.
    Type: Application
    Filed: February 1, 2019
    Publication date: May 30, 2019
    Inventors: Gary P. FUNKHOUSER, Brock W. WATSON, Andrew M. FERGUSON, Jenna N. ROBERTSON, Roger L. SCHULTZ
  • Patent number: 10301905
    Abstract: A casing string is augmented with one or more variable flow resistance devices or “vibrating tools” to facilitate advancement of the casing and distribution of the cement in the annulus once the casing is properly positioned. The method includes vibrating the casing string while advancing the casing down the wellbore or while the cement is pumped into the annulus, or both. After the cementing operation is completed, the devices may be drilled out to open the casing string for further operations. The casing string assembly may include a vibrating tool at the end in place of a conventional float shoe or float collar. Multiple vibrating tools can be employed in the casing string, and they may be combined with conventional float shoes and collars. Additionally, vibrating tools in the form of plugs can be pumped down and landed inside the casing string.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: May 28, 2019
    Assignee: Thru Tubing Solutions, Inc.
    Inventors: Roger L. Schultz, Chad A. Johnson, Andrew M. Ferguson