Patents by Inventor John C. Wolfe

John C. Wolfe 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: 20150233190
    Abstract: A technique utilizes a Y-block which is coupled with a lateral tubing string and a main tubing string. The Y-block comprises features which facilitate service and/or production operations. In well applications, the Y-block may comprise a pressure housing and a recessed bypass slot disposed along an exterior of the Y-block. A control line is positioned in the recessed bypass slot to facilitate control functions along the lateral tubing string. The recessed bypass slot enables routing of a control line without forming a splice along the control line. In other applications, the Y-block may utilize additional or other features which facilitate the desired operations.
    Type: Application
    Filed: October 10, 2013
    Publication date: August 20, 2015
    Applicant: Schlumberger Technology Corporation
    Inventors: John C. Wolf, Luis A. Gonzalez, Barton Sponchia, Andrew Brian Huang
  • Publication number: 20150226036
    Abstract: A method includes running a downhole tool into a wellbore, operating the downhole tool in a suction mode and removing debris from the wellbore, and operating the downhole tool in a circulation mode. A tool includes a body sub, a debris sub coupled to the body sub, a suction sub disposed in the debris sub, an annular jet pump sub disposed in the body sub and in fluid communication with the suction tube, and a seal sub disposed in the annular jet pump sub and configured to move from a first position to a second position. The tool operates in a first mode when the sea sub is in the first position and in a second mode when the seal sub is in the second position.
    Type: Application
    Filed: September 20, 2013
    Publication date: August 13, 2015
    Inventors: John C. Wolf, David Leece
  • Patent number: 9045963
    Abstract: An isolation device for a frac plug, the isolation device including a ball seat having a seating surface and a ball configured to contact the seating surface, wherein a profile of the seating surface corresponds to a profile of the ball. A frac plug including a mandrel having an upper end and a lower end, a sealing element disposed around the mandrel, and a ball seat disposed within a central bore of the mandrel, wherein the ball seat includes a seating surface having a non-linear profile. A method of isolating zones of a production formation, the method including setting a frac plug between a first zone and a second zone, disposing a ball within the frac plug, and seating a ball in a ball seat of the frac plug, the ball seat including a seating surface having a profile that substantially corresponds to the profile of the ball.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: June 2, 2015
    Assignee: Smith International, Inc.
    Inventors: Piro Shkurti, John C. Wolf
  • Publication number: 20150136862
    Abstract: In an exemplary embodiment, an Environmental Optimization System (“EOS”) provides a system for the intelligent control and monitoring of a poultry or livestock house environment through the utilization of a solar thermal collection system, a variety of environmental and livestock behavior sensors, apparatus for controlling the thermal collection and existing interior heating/air conditioning/ventilation (“HVAC”) systems, and Internet or cloud based intelligent control and monitoring capabilities of the system. In various embodiments central sensor data aggregation is utilized to provide improved optimization control for individual structures based on data from multiple structures.
    Type: Application
    Filed: January 16, 2015
    Publication date: May 21, 2015
    Inventor: John C. Wolf, II
  • Publication number: 20150114651
    Abstract: A system that is usable with a well includes a first tubing string and a plurality of tubing segments. The first tubing string is deployed in the well and includes a plurality of valve assemblies, which span a segment of the first tubing string. The tubing segments are adapted to be deployed in the well inside the first tubing string and attach together in the segment of the first tubing string in a sequence to form a second tubing string in a manner that allows sequential operation of the valve assemblies of the first tubing string.
    Type: Application
    Filed: October 25, 2013
    Publication date: April 30, 2015
    Applicant: Schlumberger Technology Corporation
    Inventor: John C. Wolf
  • Patent number: 8987688
    Abstract: Various embodiments disclose devices and methods for fabricating microporous particulate filters with regularly spaced pores wherein sheet membrane substrates are exposed to energetic particle radiation through a mask and the damaged regions removed in a suitable developer. The required depth of field is achieved by using energetic particles to minimize diffraction and an energetic particle source with suitably small diameter.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: March 24, 2015
    Assignee: The University of Houston
    Inventors: John C. Wolfe, Paul Ruchhoeft
  • Publication number: 20140350375
    Abstract: An optrode may provide a cylindrical substrate two or more electrodes deposited said cylindrical substrate. The cylindrical substrate and electrodes may be coated by an insulating layer with openings or vias over certain portions of the electrodes that may provide a contact for the neural probe or may be utilized to connect lead lines. Manufacturing of an optrode may utilize a jig that secures a cylindrical substrate coated by a conductive material and a resist. A first mask may be positioned in an opening provided by the jig, and the cylindrical substrate may be exposed ions or neutral particles to define one or more electrode patterns. After regions of the resist and conductive material are removed to form the electrodes, a second mask may be utilized to define vias regions in which portions of the electrodes are exposed and uncoated by an insulating layer.
    Type: Application
    Filed: May 27, 2014
    Publication date: November 27, 2014
    Applicants: University of Houston, Vanderbilt University
    Inventors: John C. Wolfe, Mufaddal Gheewala, Wei-Chuan Shih, Gopathy Purushothaman
  • Patent number: 8826986
    Abstract: A downhole tool including a resilient body configured to be disposed on a drill string, the resilient body comprising a plurality of radial blades having an abrasive coating, wherein the radial blades are configured to deflect when inserted into downhole tubing, and wherein the resilient body is configured to allow rotation relative to the drill string. Additionally, a method for cleaning downhole tubing, the method including inserting a resilient scraper disposed on a drill string into the downhole tubing, the resilient scraper including a plurality of radial blades having an abrasive coating. The method further including rotating the drill string, and contacting the resilient scraper to an internal wall of the downhole tubing.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: September 9, 2014
    Assignee: M-I L.L.C.
    Inventor: John C. Wolf
  • Patent number: 8800660
    Abstract: A downhole debris recovery tool including a ported sub coupled to a debris sub, a suction tube disposed in the debris sub, at least one magnet disposed in the debris removal tool, and an annular jet pump sub disposed in the ported sub and fluidly connected to the suction tube. A method of removing debris from a wellbore including the steps of lowering a downhole debris removal tool into the wellbore, flowing a fluid through a bore of an annular jet pump sub, jetting the fluid from the annular jet pump sub into a mixing tube, displacing an initially static fluid in the mixing tube through a diffuser, thereby creating a vacuum effect in a suction tube to draw a debris-laden fluid into the tool, flowing the debris-laden fluid past at least one magnet disposed in a debris housing, and removing the tool from the wellbore is also disclosed.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: August 12, 2014
    Assignee: Smith International, Inc.
    Inventors: Craig Fishbeck, John C. Wolf
  • Patent number: 8701787
    Abstract: An expandable backup ring includes an outer surface, an inner surface having a plurality of protrusions projecting radially inwardly, and a plurality of segments, the segments defined by a plurality of outer surface cuts. The plurality of outer surface cuts extends radially inwardly from the outer surface and partially into each of the plurality of protrusions.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: April 22, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Piro Shkurti, John C. Wolf
  • Patent number: 8672025
    Abstract: A downhole debris recovery tool including a ported sub coupled to a debris sub, a suction tube disposed in the debris sub, and an annular jet pump sub disposed in the ported sub and fluidly connected to the suction tube is disclosed. A method of removing debris from a wellbore including the steps of lowering a downhole debris removal tool into the wellbore, the downhole debris removal tool having an annular jet pump sub, a mixing tube, a diffuser, and a suction tube, flowing a fluid through a bore of the annular jet pump sub, jetting the fluid from the annular jet pump sub into the mixing tube, displacing an initially static fluid in the mixing tube through the diffuser, thereby creating a vacuum effect in the suction tube to draw a debris-laden fluid into the downhole debris removal tool, and removing the tool downhole debris removal tool from the wellbore after a predetermined time interval is also disclosed.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: March 18, 2014
    Assignees: M-I L.L.C., M-I Drilling Fluids U.K. Limited
    Inventors: John C. Wolf, George Telfer, James Atkins
  • Patent number: 8661663
    Abstract: A neural probe includes a probe, wherein a tip of the probe is tapered; an insulating layer covering the probe, and one or more metallic traces, wherein the metallic traces are provide along the length of the probe. The probe also includes one or more contacts provided on the tip of the probe, wherein each of the one or more metallic traces terminates at the one or more contacts, and the one or more contacts provide an array of nanosized metallic pillars. The neural probe may also incorporate a lightguide. The lightguide may include an insulating layer providing a first cladding layer on the probe, a core layer provided on top of the first cladding layer, wherein the metallic traces and contacts are provided in the core layer with a core material, and a second cladding layer provided on top of the core layer.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: March 4, 2014
    Assignee: University of Houston
    Inventors: John C. Wolfe, Wei-Chuan Shih
  • Publication number: 20130192840
    Abstract: A location and orientation assembly suitable for use in a multi-lateral wellbore may include a coupling portion, an upper muleshoe, a muleshoe spacer and a bottom muleshoe. The bottom muleshoe may connect to the coupling portion through a threaded connection. A method for locating and orienting in a multi-lateral wellbore includes providing a locating and orientation assembly. In the orientation assembly a coupling portion is provided and an upper muleshoe is inserted into the coupling portion. A muleshoe spacer is inserted into the coupling portion so as to matingly contact the upper muleshoe portion. Part of a bottom muleshoe is inserted into the coupling portion so as to matingly contact the muleshoe spacer. The coupling portion is jointed to the bottom muleshoe by a threaded connection.
    Type: Application
    Filed: July 31, 2012
    Publication date: August 1, 2013
    Inventors: John C. Wolf, Michael Plooy, Victor Fridman, Hanif Dussie Hunter, Barton Sponchia, Lance Rayne
  • Patent number: 8469088
    Abstract: A drillable bridge plug includes a mandrel having external splines disposed on an outer surface of the mandrel, a sealing element disposed around the mandrel, an upper cone disposed around the mandrel proximate an upper end of the sealing element, and a lower cone disposed around the mandrel proximate the lower end of the sealing element, wherein an inner surface of the lower cone comprises internal splines configured to engage the external splines. The drillable bridge plug also includes an upper and a lower slip assembly disposed around the mandrel, and an upper and lower ring assembly each including a first segmented barrier ring, a second segmented barrier ring, and a back-up ring disposed proximate sealing element. Methods include a method of setting the drillable bridge plug and a method of removing the drillable bridge plug.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: June 25, 2013
    Assignee: Smith International, Inc.
    Inventors: Piro Shkurti, John C. Wolf
  • Publication number: 20120217025
    Abstract: An expandable backup ring includes an outer surface, an inner surface having a plurality of protrusions projecting radially inwardly, and a plurality of segments, the segments defined by a plurality of outer surface cuts. The plurality of outer surface cuts extends radially inwardly from the outer surface and partially into each of the plurality of protrusions.
    Type: Application
    Filed: February 28, 2011
    Publication date: August 30, 2012
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: Piro SHKURTI, John C. WOLF
  • Publication number: 20120061103
    Abstract: A downhole isolation tool including a sub, a sleeve disposed in the sub, and a ball seat mandrel coupled to the sleeve, the ball seat mandrel having at least two ball seats axially aligned with at least two throughbores disposed within the ball seat mandrel. A method of isolating a well, the method including running a downhole isolation system into a well, wherein the downhole isolation system includes a first downhole isolation tool, the first downhole isolation tool including a first sub, a first sleeve disposed in the sub, and a first ball seat mandrel coupled to the first sleeve, the first ball seat mandrel having at least two ball seats of a first size axially aligned with at least two throughbores disposed within the first ball seat mandrel, dropping at least two balls of a first size into the well, and seating the at least two balls of the first size in the at least two ball seats of the first ball seat mandrel.
    Type: Application
    Filed: July 1, 2011
    Publication date: March 15, 2012
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: Jose Hurtado, John C. Wolf
  • Publication number: 20110259610
    Abstract: An isolation device for a frac plug, the isolation device including a ball seat having a seating surface and a ball configured to contact the seating surface, wherein a profile of the seating surface corresponds to a profile of the ball. A frac plug including a mandrel having an upper end and a lower end, a sealing element disposed around the mandrel, and a ball seat disposed within a central bore of the mandrel, wherein the ball seat includes a seating surface having a non-linear profile. A method of isolating zones of a production formation, the method including setting a frac plug between a first zone and a second zone, disposing a ball within the frac plug, and seating a ball in a ball seat of the frac plug, the ball seat including a seating surface having a profile that substantially corresponds to the profile of the ball.
    Type: Application
    Filed: April 21, 2011
    Publication date: October 27, 2011
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: Piro SHKURTI, John C. WOLF
  • Publication number: 20110208031
    Abstract: A neural probe includes a probe, wherein a tip of the probe is tapered; an insulating layer covering the probe, and one or more metallic traces, wherein the metallic traces are provide along the length of the probe. The probe also includes one or more contacts provided on the tip of the probe, wherein each of the one or more metallic traces terminates at the one or more contacts, and the one or more contacts provide an array of nanosized metallic pillars. The neural probe may also incorporate a lightguide. The lightguide may include an insulating layer providing a first cladding layer on the probe, a core layer provided on top of the first cladding layer, wherein the metallic traces and contacts are provided in the core layer with a core material, and a second cladding layer provided on top of the core layer.
    Type: Application
    Filed: February 22, 2011
    Publication date: August 25, 2011
    Applicant: University of Houston
    Inventors: John C. Wolfe, Wei-Chuan Shih
  • Patent number: 7960708
    Abstract: Various embodiments disclose devices and methods for fabricating microporous particulate filters with regularly space pores wherein sheet membrane substrates are exposed to energetic particle radiation through a mask and the damaged regions removed in a suitable developer. The required depth of field is achieved by using energetic particles to minimize diffraction and an energetic particle source with suitably small diameter.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: June 14, 2011
    Assignee: University of Houston
    Inventors: John C. Wolfe, Paul Ruchhoeft
  • Patent number: 7883831
    Abstract: The present inventors have developed an accurate method for forming a plurality of images on a substrate. The present method provides an improved pattern replication technique that provides submicron resolution, for example 20 nm or less, especially 10 nm or less. The method may involve moving a structured beam of energetic radiation across a target substrate. The motion of an image of the template mask on the substrate is achieved by tilting a mask and substrate assembly relative to the axis of the incident beam. The technique does not require high precision motion of the template mask relative to the target substrate. The energetic radiation may comprise energetic particles. The technique is insensitive to particle energy and can be applied to uncharged, neutral particles.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: February 8, 2011
    Assignee: University of Houston
    Inventors: John C. Wolfe, Barry Craver