Patents by Inventor David Randolph Smith

David Randolph Smith 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: 7886830
    Abstract: The application discloses a safety valve to replace an existing safety valve in order to isolate a production zone from a string of tubing when closed. Preferably, the safety valve includes a flow interruption device displaced by an operating conduit extending from a surface location to the safety valve through the inside of the production tubing. The application also discloses a bypass-conduit which allows communication from a surface location to the production zone through the safety valve without affecting the operation of the safety valve.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: February 15, 2011
    Assignee: BJ Services Company, U.S.A.
    Inventors: Jeffrey L. Bolding, David Randolph Smith
  • Patent number: 7861786
    Abstract: Apparatuses and methods to inject chemical stimulants (284) to a production zone (102, 202) through a string of production tubing (110, 210) around a downhole obstruction are disclosed. The apparatuses and methods include deploying an anchor seal assembly (200) to a landing profile (120, 220) located within a string of production tubing (110, 210). The anchor seal assembly (200) is in communication with a surface station through an injection conduit (260, 264) and includes a bypass pathway (262) to inject various fluids to a zone below.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: January 4, 2011
    Assignee: BJ Services Company, U.S.A.
    Inventors: Thomas G. Hill, Jr., Jeffrey L. Bolding, David Randolph Smith
  • Publication number: 20100276146
    Abstract: The present invention provides methods and apparatuses for the enhanced recovery of hydrocarbon fluids from subterranean reservoirs using cryogenic fluids. Using the Earth's geothermal energy to warm cryogenic flood fluids injected into subterranean reservoirs, the pressure within the subterranean reservoir is increased. Consequently, the reservoir conductivity is enhanced due to thermal cracking, and improved sweep efficiency of the reservoir by the flood fluids is provided. This rise in pressure due to the injection of the cryogenic fluid increases the reservoir conductivity enhancement and improves sweep efficiency of the flood fluids, which leads to the production of more fluids from to the subterranean reservoirs.
    Type: Application
    Filed: April 20, 2010
    Publication date: November 4, 2010
    Inventor: David Randolph Smith
  • Patent number: 7823648
    Abstract: The application discloses a valve, which may include either a safety valve or a storm surge choke valve or the like, to isolate a zone below a valve from a string of production tubing. Preferably, the valve includes a flow interruption surface assembly, such as a flapper valve or a ball valve, displaced by an operating conduit extending from a surface location to the valve through the inside of the production tubing. The application also discloses a bypass-conduit inside the production tubing to allow communication from a surface location to the production zone when the valve is in either an open or a closed location.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: November 2, 2010
    Assignee: BJ Services Company, U.S.A.
    Inventors: Jeffrey L. Bolding, David Randolph Smith
  • Patent number: 7730958
    Abstract: This invention teaches methods and compositions to enhance oil and gas recovery from reservoirs. The methods and compositions disclosed enhance hydrocarbon recovery and fluid disposal in subterranean reservoirs by injecting microemulsion fluids with supercritical fluids, water, or an alternating injection phase of each fluid.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: June 8, 2010
    Inventor: David Randolph Smith
  • Patent number: 7721805
    Abstract: Apparatuses and methods to communicate with a zone below a subsurface safety valve (104, 204, 404) independent of the position of a closure member (106) of the safety valve. The apparatuses and methods include deploying a subsurface safety valve (104, 204, 404) to a profile located within a string of production tubing. The subsurface safety valve (104, 204, 404) is in communication with a surface station through an injection conduit (150,152; 250,252; 450; 452) and includes a bypass pathway (144, 244, 444) to inject various fluids to a zone below. A redundant control to actuate subsurface safety valve (104, 204, 404) can include a three-way valve (180, 280) or three-way manifold 480 connecting the injection conduit (150,152; 250,252; 452) or the hydraulic ports (140,142; 240,242; 442?) to the subsurface safety valve (104, 204, 404).
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: May 25, 2010
    Assignee: BJ Services Company, U.S.A.
    Inventors: Thomas G. Hill, Jeffrey L. Bolding, David Randolph Smith
  • Publication number: 20100096145
    Abstract: The application discloses a safety valve to replace an existing safety valve in order to isolate a production zone from a string of tubing when closed. Preferably, the safety valve includes a flow interruption device displaced by an operating conduit extending from a surface location to the safety valve through the inside of the production tubing. The application also discloses a bypass-conduit which allows communication from a surface location to the production zone through the safety valve without affecting the operation of the safety valve.
    Type: Application
    Filed: December 23, 2009
    Publication date: April 22, 2010
    Inventors: Jeffrey L. Bolding, David Randolph Smith
  • Patent number: 7617878
    Abstract: A method and apparatus for inserting a small diameter continuous hydraulic conduit or capillary tube down a well bore is presented. The methods and apparatus allow either the injection of chemicals to enhance production of oil and gas, or to provide a conduit for production up through the small diameter tubing in marginal wells, into a hanger below a well valve to permit its removal from below the valve if the valve should be required to be closed and its reinsertion without pulling the tubing from the well bore.
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: November 17, 2009
    Assignee: BJ Services Company, U.S.A.
    Inventors: David Randolph Smith, Gary O. Harkins, Brent Shanley
  • Patent number: 7469745
    Abstract: The present invention relates to an apparatus and method for using that apparatus to orient a perforating gun or system to minimize or eliminate the damage which may be caused to exterior control conduits, conductors or devices, or to adjacent interior well control lines, conduits or tubing by attaching the perforating system to a device which has a resilient cam or guide which engages a slot formed on the interior of a specially fabricated tubular member attached at a spaced distance from the perforating systems blast and which is so oriented as to permit the attachment of the lines or conduits or devices in the opposite radial direction from the blast of the perforating system.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: December 30, 2008
    Assignee: Schlumberger Technology Corporation
    Inventors: David Randolph Smith, Gary O. Harkins
  • Publication number: 20080277119
    Abstract: Apparatuses and methods to communicate with a zone below a subsurface safety valve (104, 204, 404) independent of the position of a closure member (106) of the safety valve are disclosed. The apparatuses and methods include deploying a subsurface safety valve (104, 204, 404) to a profile located within a string of production tubing. The subsurface safety valve (104, 204, 404) is in communication with a surface station through an injection conduit (150,152; 250,252; 450;452) and includes a bypass pathway (144, 244, 444) to inject various fluids to a zone below. A redundant control to actuate subsurface safety valve (104, 204, 404) can include a three-way valve (180, 280) or three-way manifold 480 connecting the injection conduit (150,152; 250,252; 452) or the hydraulic ports (140,142; 240,242; 442?) to the subsurface safety valve (104, 204, 404).
    Type: Application
    Filed: July 10, 2006
    Publication date: November 13, 2008
    Applicant: BJ Services Company, U.S.A.
    Inventors: Thomas G. Hill, JR., Jeffrey L. Bolding, David Randolph Smith
  • Publication number: 20080071596
    Abstract: A product distribution method and system using LNG fuel and refrigerant is described. The method and system combines the production, storing, transporting, and consuming of liquid natural gas as a transportation fuel and refrigerant fluid.
    Type: Application
    Filed: August 4, 2006
    Publication date: March 20, 2008
    Inventor: David Randolph Smith
  • Patent number: 7273106
    Abstract: An adjustable well screen assembly having a pipe which is connectable to a production pipe, wherein the pipe comprises a hole extending from the ID of the pipe to the OD of the pipe; a screen connected to the pipe adjacent the hole of the pipe; a valve connected to the pipe, wherein the valve controls fluid flow through the hole of the pipe; a valve motor mechanically connected to the valve, wherein the valve motor opens and closes the valve; and a valve controller communicatively connected to the valve motor, wherein the valve controller instructs the valve motor as to a configuration of the valve.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: September 25, 2007
    Assignee: Shell Oil Company
    Inventors: Paul Thomas Huckabee, Phillip Scott Fair, Timothy Peter McPike, Edward Eugene Shumilak, II, George Kwok Kai Wong, David Randolph Smith
  • Patent number: 7234518
    Abstract: An adjustable well screen assembly having a sand screen which is wrapped around a perforated base pipe and a perforated sleeve which is movably disposed concentrically inside the base pipe between a first, closed, and a second, open, position. In the first position of the sleeve the perforations of the sleeve and base pipe are unaligned and hydraulically isolated from each other and flow of fluids from the outer diameter of the screen into the interior of the sleeve is inhibited. In the second position the perforations of the sleeve and the base pipe are aligned and connected in fluid communication with each other and fluids are permitted to flow from the formation through the sand screen and the perforations of the sleeve and base pipe into the interior of the sleeve.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: June 26, 2007
    Assignee: Shell Oil Company
    Inventor: David Randolph Smith
  • Patent number: 7219742
    Abstract: A method and apparatus for inserting a small diameter continuous hydraulic conduit or capillary tube down a well bore is presented. The methods and apparatus allow either the injection of chemicals to enhance production of oil and gas, or to provide a conduit for production up through the small diameter tubing in marginal wells, into a hanger below a well valve to permit its removal from below the valve if the valve should be required to be closed and its reinsertion without pulling the tubing from the well bore.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: May 22, 2007
    Assignee: BJ Services Company
    Inventors: David Randolph Smith, Gary O. Harkins, Brent Shanley
  • Patent number: 7082996
    Abstract: A method and apparatus for inserting a small diameter continuous hydraulic conduit or capillary tube down a well bore is presented. The methods and apparatus allow either the injection of chemicals to enhance production of oil and gas, or to provide a conduit for production up through the small diameter tubing in marginal wells, into a hanger below a well valve to permit its removal from below the valve if the valve should be required to be closed and its reinsertion without pulling the tubing from the well bore.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: August 1, 2006
    Assignee: General Oil Tools, LP
    Inventors: David Randolph Smith, Gary O. Harkins, Brent Shanley
  • Patent number: 6913083
    Abstract: A method and apparatus for logging, controlling, or monitoring a subsea well or group of wells through a path not within production tubing. Preferred embodiments allow logging tools, wire rope, optic fibers, electrical cables, monitoring and measuring instruments and other items known to those skilled in the art of oil and gas production to be disposed into the well without interfering with the flow path through the production string. A further preferred embodiment includes the mooring or tethering of an instrument pod over the subsea well. The instrument pod is designed to provide on-board data storage, data processing, data receiving, and data transmission equipment, such that data from the well can be transmitted back to a receiving network where the data may be stored and processed into useful information for reservoir operators.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: July 5, 2005
    Assignee: Sensor Highway Limited
    Inventor: David Randolph Smith
  • Patent number: 6888124
    Abstract: There is provided a process and apparatus for measuring and monitoring motor systems, which includes providing a motor system having at least one component selected from a stator and an armature, which at least one component is connected to at least one electrical wire incorporating at least one means for data measurement, collecting data with the means for data measurement, and transferring the collected data to a data collection station.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: May 3, 2005
    Assignee: Shell Oil Company
    Inventor: David Randolph Smith
  • Publication number: 20040262011
    Abstract: An adjustable well screen assembly having a pipe which is connectable to a production pipe, wherein the pipe comprises a hole extending from the ID of the pipe to the OD of the pipe; a screen connected to the pipe adjacent the hole of the pipe; a valve connected to the pipe, wherein the valve controls fluid flow through the hole of the pipe; a valve motor mechanically connected to the valve, wherein the valve motor opens and closes the valve; and a valve controller communicatively connected to the valve motor, wherein the valve controller instructs the valve motor as to a configuration of the valve.
    Type: Application
    Filed: March 26, 2004
    Publication date: December 30, 2004
    Inventors: Paul Thomas Huckabee, Phillip Scott Fair, Timothy Peter McPike, Edward Eugene Shumilak, George Kwok Kai Wong, David Randolph Smith
  • Publication number: 20040251020
    Abstract: An adjustable well screen assembly having a sand screen which is wrapped around a perforated base pipe and a perforated sleeve which is movably disposed concentrically inside the base pipe between a first, closed, and a second, open, position. In the first position of the sleeve the perforations of the sleeve and base pipe are unaligned and hydraulically isolated from each other and flow of fluids from the outer diameter of the screen into the interior of the sleeve is inhibited. In the second position the perforations of the sleeve and the base pipe are aligned and connected in fluid communication with each other and fluids are permitted to flow from the formation through the sand screen and the perforations of the sleeve and base pipe into the interior of the sleeve.
    Type: Application
    Filed: August 16, 2004
    Publication date: December 16, 2004
    Inventor: David Randolph Smith
  • Publication number: 20040163805
    Abstract: A method and apparatus for inserting a small diameter continuous hydraulic conduit or capillary tube down a well bore is presented. The methods and apparatus allow either the injection of chemicals to enhance production of oil and gas, or to provide a conduit for production up through the small diameter tubing in marginal wells, into a hanger below a well valve to permit its removal from below the valve if the valve should be required to be closed and its reinsertion without pulling the tubing from the well bore.
    Type: Application
    Filed: February 25, 2004
    Publication date: August 26, 2004
    Inventors: David Randolph Smith, Gary O. Harkins, Brent Shanley