Patents by Inventor Garud Sridhar

Garud Sridhar 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: 20080289849
    Abstract: Electrical cables formed from at least one insulated conductor, a layer of inner armor wires disposed adjacent the insulated conductor, and a layer of shaped strength members disposed adjacent the outer periphery of the first layer of armor wires. A polymeric material is disposed in interstitial spaces formed between the inner armor wires and the layer of shaped strength members, and the polymeric material is further disposed in interstitial spaces formed between the inner armor wire layer and insulated conductor. The polymeric material serves as a continuously bonded layer which also separates and encapsulates the armor wires forming the inner armor wire layer wire layer.
    Type: Application
    Filed: July 21, 2008
    Publication date: November 27, 2008
    Inventors: Joseph Varkey, Garud Sridhar
  • Patent number: 7402753
    Abstract: Electrical cables formed from at least one insulated conductor, a layer of inner armor wires disposed adjacent the insulated conductor, and a layer of shaped strength members disposed adjacent the outer periphery of the first layer of armor wires. A polymeric material is disposed in interstitial spaces formed between the inner armor wires and the layer of shaped strength members, and the polymeric material is further disposed in interstitial spaces formed between the inner armor wire layer and insulated conductor. The polymeric material serves as a continuously bonded layer which also separates and encapsulates the armor wires forming the inner armor wire layer wire layer.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: July 22, 2008
    Assignee: Schlumberger Technology Corporation
    Inventors: Joseph Varkey, Garud Sridhar
  • Publication number: 20080156517
    Abstract: Wellbore electrical cables according to the invention include at least one insulated conductor, at least one layer of armor wires surrounding the insulated conductor, and a polymeric material disposed in the interstitial spaces formed between armor wires and interstitial spaces formed between the armor wire layer and insulated conductor which may further include wear resistance particles or even short fibers, and the polymeric material may further form a polymeric jacket around an outer, layer of armor wires. The insulated conductor is formed from a plurality of metallic conductors encased in an insulated jacket.
    Type: Application
    Filed: January 12, 2006
    Publication date: July 3, 2008
    Inventors: Joseph Varkey, Byong Jun Kim, Garud Sridhar, Noor Sait, Wayne Fulin
  • Publication number: 20080031578
    Abstract: A cable component is provided that includes at least one optical fiber; and a plurality of shaped profiles having inner and outer surfaces such that the inner surfaces combine to from an enclosure for the at least one optical fiber.
    Type: Application
    Filed: August 2, 2006
    Publication date: February 7, 2008
    Inventors: Joseph Varkey, Garud Sridhar
  • Patent number: 7259331
    Abstract: Disclosed are electric cables with improved armor wires used with wellbore devices to analyze geologic formations adjacent a wellbore. The cables include at least one insulated conductor, and one or more armor wires surrounding the insulated conductor. The armor wires include a low density core surrounded by a corrosion resistant alloy clad, where the alloy clad includes such alloys as beryllium-copper based alloys, nickel-chromium based alloys, superaustenitic stainless steel alloys, nickel-cobalt based alloys, nickel-molybdenum-chromium based alloys, and the like. The low density core may be based upon titanium or titanium alloys. The cables of the invention may be any useful electric cable design, including monocables, quadcables, heptacables, quadcables, slickline cables, multiline cables, coaxial cables, or seismic cables.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: August 21, 2007
    Assignee: Schlumberger Technology Corp.
    Inventors: Garud Sridhar, Joseph P. Varkey, Anthony Collins
  • Publication number: 20070158095
    Abstract: Disclosed are electric cables with improved armor wires used with wellbore devices to analyze geologic formations adjacent a wellbore. The cables include at least one insulated conductor, and one or more armor wires surrounding the insulated conductor. The armor wires include a low density core surrounded by a corrosion resistant alloy clad, where the alloy clad includes such alloys as beryllium-copper based alloys, nickel-chromium based alloys, superaustenitic stainless steel alloys, nickel-cobalt based alloys, nickel-molybdenum-chromium based alloys, and the like. The low density core may be based upon titanium or titanium alloys. The cables of the invention may be any useful electric cable design, including monocables, quadcables, heptacables, quadcables, slickline cables, multiline cables, coaxial cables, or seismic cables.
    Type: Application
    Filed: January 11, 2006
    Publication date: July 12, 2007
    Inventors: Garud Sridhar, Joseph Varkey
  • Publication number: 20070107928
    Abstract: Electrical cables formed from at least one insulated conductor, a layer of inner armor wires disposed adjacent the insulated conductor, and a layer of shaped strength members disposed adjacent the outer periphery of the first layer of armor wires. A polymeric material is disposed in interstitial spaces formed between the inner armor wires and the layer of shaped strength members, and the polymeric material is further disposed in interstitial spaces formed between the inner armor wire layer and insulated conductor. The polymeric material serves as a continuously bonded layer which also separates and encapsulates the armor wires forming the inner armor wire layer wire layer.
    Type: Application
    Filed: November 20, 2006
    Publication date: May 17, 2007
    Inventors: Joseph Varkey, Garud Sridhar
  • Patent number: 7170007
    Abstract: Wellbore electrical cables according to the invention include at least one insulated conductor, at least one layer of armor wires surrounding the insulated conductor, and a polymeric material disposed in the interstitial spaces formed between armor wires and interstitial spaces formed between the armor wire layer and insulated conductor which may further include wear resistance particles or even short fibers, and the polymeric material may further form a polymeric jacket around an outer, layer of armor wires. The insulated conductor is formed from a plurality of metallic conductors encased in an insulated jacket.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: January 30, 2007
    Assignee: Schlumburger Technology Corp.
    Inventors: Joseph Varkey, Byong Kim, Garud Sridhar, Noor Sait, Wayne Fulin
  • Publication number: 20070003780
    Abstract: Corrosion resistant and/or lightweight bimetallic cylinders used in tools and electric cables, including core surrounded by corrosion resistant alloy outer cladding materials, where the alloy clad may include such alloys as beryllium-copper based alloys, nickel-chromium based alloys, superaustenitic stainless steel alloys, nickel-cobalt based alloys, nickel-molybdenum-chromium based alloys, and the like. The core may be a low density core based substantially upon titanium or titanium alloys.
    Type: Application
    Filed: April 26, 2006
    Publication date: January 4, 2007
    Inventors: Joseph Varkey, Garud Sridhar, Anthony Collins, Wayne Fulin
  • Publication number: 20070000682
    Abstract: Disclosed are high strength wellbore electric cables, which are formed from a plurality of strength members. The strength members are formed from several stranded filament wires which may be encased within a jacket of polymeric material. The strength members may be used as a central strength member, or even layered around a central axially positioned component or strength member, to form a layer of strength members. Cables of the invention may be of any practical design, including monocables, coaxial cables, quadcables, heptacables, slickline cables, multi-line cables, etc., and have improved resistant to corrosion, torque balancing, and gas migration from a wellbore to the surface.
    Type: Application
    Filed: April 12, 2006
    Publication date: January 4, 2007
    Inventors: Joseph Varkey, Garud Sridhar
  • Patent number: 7119283
    Abstract: Electric cables used with wellbore devices to analyze geologic formations adjacent a wellbore including at least one insulated conductor, and one or more armor wires surrounding the insulated conductor, the armor wires formed of a high strength core surrounded by a corrosion resistant alloy clad. The alloy clad includes such alloys as beryllium-copper based alloys, nickel-chromium based alloys, superaustenitic stainless steel alloys, nickel-cobalt based alloys, nickel-molybdenum-chromium based alloys, and the like. The cables of the invention may be any useful electric cable, including monocables, quadcables, heptacables, quadcables, slickline cables, multiline cables, coaxial cables, or seismic cables.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: October 10, 2006
    Assignee: Schlumberger Technology Corp.
    Inventors: Joseph P. Varkey, Garud Sridhar, Seth Silverman, Rashmi B. Bhavsar
  • Publication number: 20060151194
    Abstract: Wellbore electrical cables according to the invention include at least one insulated conductor, at least one layer of armor wires surrounding the insulated conductor, and a polymeric material disposed in the interstitial spaces formed between armor wires and interstitial spaces formed between the armor wire layer and insulated conductor which may further include wear resistance particles or even short fibers, and the polymeric material may further form a polymeric jacket around an outer, layer of armor wires. The insulated conductor is formed from a plurality of metallic conductors encased in an insulated jacket.
    Type: Application
    Filed: January 12, 2005
    Publication date: July 13, 2006
    Inventors: Joseph Varkey, Byong Kim, Garud Sridhar, Noor Sait, Wayne Fulin