Patents Represented by Attorney Michael L. Flynn
  • Patent number: 8251155
    Abstract: A method of performing a wellbore operation at an oilfield comprises providing a bottom hole assembly comprising a backpressure valve on coiled tubing, deploying the bottom hole assembly into the wellbore with the coiled tubing, operating the backpressure valve to control a flow of fluid thereabove, and performing distributed temperature sensor measurements above the valve.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: August 28, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Gokturk Tunc, Douglas Pipchuk
  • Patent number: 8227697
    Abstract: Wellbore electrical cables 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. Further disclosed are methods of using the cables of the invention in seismic and wellbore operations, including logging operations.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: July 24, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Joseph Varkey, Byong Jun Kim, Garud Sridhar, Noor Sait, Wayne Fulin
  • Patent number: 8220541
    Abstract: An intervention tool for use inside a wellbore is provided that includes an intervention module capable of performing an intervention operation downhole, and a drive electronics module in communication with the intervention module and configured to control the intervention module. The tool also includes one or more sensors which measure at least one operational parameter of the intervention operation during the intervention operation. The intervention operation is optimized based on the measured at least one operational parameter.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: July 17, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Ruben Martinez, Matthew Billingham, Todor Sheiretov, Paul Beguin
  • Patent number: 8186437
    Abstract: An assembly for delivery of treatment fluid at a target location downhole. The assembly is configured to avoid any substantial loss of treatment fluid in advance of reaching the target location in spite of low well pressure or a potentially excessive depth of the location. The assembly also allows for loading with treatment fluid from a downhole end thereof so as to avoid driving treatment fluid through the entirety of a tubular accommodating the assembly. The assembly may employ a spot valve to enhance filling with treatment fluid along with a backpressure valve coupled to the spot valve on-site so as to avoid premature loss of treatment fluid during a delivery application.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: May 29, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Zheng Rong Xu, Jorge A. Lozada Pazzi, Kevin Odom
  • Patent number: 8136395
    Abstract: Examples of techniques for analyzing well data which may be encountered during formation testing are disclosed. Certain portions of the tests may exhibit an indication of anomalous behavior, defects, errors or events that may have occurred during testing. One or more confidence tokens may be identified during or after the execution of a test. One or more of these confidence tokens may be analyzed to determine whether such anomalous behavior, defects, errors or events have occurred during the test. These confidence tokens may then be used to determine a level of confidence in the results derived from the tests performed and/or their underlying data and interpretation.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: March 20, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Julian Pop, Jean-Marc Follini
  • Patent number: 8113284
    Abstract: The invention relates to a method for treating subterranean formation comprising providing distributed temperature sensors, injecting a treatment fluid and monitoring the temperature across the treatment interval during the injection process.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: February 14, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Virginia Jee, Nicolas Flamant, Hubertus Thomeer, Sarmad Adnan, Michael Gay
  • Patent number: 8069879
    Abstract: A hydrocarbon application hose to avoid substantial compression and blow-out resulting from high pressurization differentials therethrough. The hose is formed from an inner tube that has a layer of material with electromagnetic target, such as carbon fiber, disbursed therethrough. In this manner, the material, generally a polymer, may be electromagnetically heated once the layer has been wrapped with a metallic reinforcing member. Thus, the layer of material may transform into surrounding relation relative to the reinforcing member. A substantially unitary inner tube may thereby be provided that includes a reinforcing member for blowout resistance and is of unitary character for compression resistance.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: December 6, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Joseph Varkey, Willem A. Wijnberg, Montie W. Morrison, Sheng Chang
  • Patent number: 7997343
    Abstract: A scale removal tool with adjustably positionable fluid dispensing arms. The scale removal tool may be configured for delivery to within a hydrocarbon well via coiled tubing. Thus, fluid may be driven through the coiled tubing and through the tool at the fluid dispensing arms. The fluid may thereby be jetted at high pressure toward scale at the wall of the well in order to achieve its removal. In the case of a well having scale of varying thicknesses, the fluid dispensing arms may be dynamically positioned and repositioned while downhole in the well, depending on scale thickness.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: August 16, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Zafer Erkol, Gokturk Tunc
  • Patent number: 8000572
    Abstract: Disclosed are wellbore electric cables, and methods of manufacturing such cables, and in one aspect, methods of manufacturing wireline composite slickline cables. Some embodiments are methods which include preparing a slickline cable by providing an inner metallic tube containing at least one conductor (such as an optical fiber), disposing an epoxy/fiber composite strength layer substantially upon the outer periphery of the inner metallic tube, and exposing the combination of the inner metallic tube and composite strength layer to at least one technique for minimizing the variation in diameter and providing a substantially uniform circular cross-sectional shape of the combination. Further, an outer metallic tube is draw around the combination of the composite strength member and the inner metallic tube, to form a wellbore slickline. Cables prepared using such methods are also disclosed.
    Type: Grant
    Filed: March 20, 2006
    Date of Patent: August 16, 2011
    Assignee: Schlumberger Technology Corporation
    Inventor: Joseph Varkey
  • Patent number: 7967072
    Abstract: A release mechanism for incorporation into a logging head. The release mechanism may be a tensile release mechanism that employs a plurality of tensile members for interchangeable insertion into a plurality of tensile compartments. As a result, a weakpoint for the logging head may be user defined on location at the oilfield. Furthermore, for potentially deeper wells, a rotatable release mechanism may be alternatively or additionally incorporated into the logging head. The rotatable release mechanism may be employed to effectuate a release of the logging head upon signaling from surface equipment. Additionally, the rotatable release mechanism may be powered to achieve the release solely from a downhole power source.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: June 28, 2011
    Assignee: Schlumberger Technology Corporation
    Inventor: L. Michael McKee
  • Patent number: 7934548
    Abstract: An embodiment of a system for preventing the loss of a spooled device into a wellbore comprises a housing defining an aperture extending therethrough, the aperture sized for allowing the spooled device to pass therethrough, a sensor to measure at least one condition of the system, and a gripper device to engage with the spooled device and the housing to prevent the loss of the spooled device when the condition of the system is a failure condition.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: May 3, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Brian Doud, John A. Thomas
  • Patent number: 7934311
    Abstract: A method of forming at least a portion of a cable comprises providing at least one conductor, extruding at least an inner layer of polymeric insulation over the at least one conductor to form a cable conductor core, embedding a plurality of conductors into the inner layer of the cable conductor core, and extruding an outer layer of polymeric insulation over the cable conductor core and the plurality of conductors and bonding the inner layer to the outer layer to form the cable and provide a contiguous bond between the inner layer, the conductors, and the outer layer, wherein embedding comprises heating a one of the inner layer and the conductors prior to embedding the conductors into the inner layer.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: May 3, 2011
    Assignee: Schlumberger Technology Corporation
    Inventor: Joseph Varkey
  • Patent number: 7932220
    Abstract: A composition for use in an oil chamber of a tool includes a hydraulic oil; and a surfactant, wherein the surfactant is present at an amount sufficient to form micelles in the hydraulic oil. The composition may further include an amphiphilic copolymer. A method includes providing a hydraulic fluid composition comprising a hydraulic oil and a surfactant capable of forming micelles in the hydraulic oil; and filling a hydraulic chamber in the tool with the hydraulic fluid composition. The hydraulic fluid composition may further include an amphiphilic copolymer.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: April 26, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Alexander Zazovsky, Jian Zhou, Christopher Del Campo, Golchehreh Salamat, Diankui Fu, Jese C. Lee
  • Patent number: 7926572
    Abstract: A backpressure valve. The backpressure valve may be configured to maintain a substantially controlled pressure in coiled tubing uphole thereof while simultaneously being compatible with a ballistically actuated tool downhole thereof. The valve may include a housing with an uphole chamber in alignment with the coiled tubing and downhole chamber in alignment with the ballistically actuated tool. A gate mechanism disposed between the uphole and downhole chambers may thus be employed to receive a ballistic actuator from the uphole chamber for dispensing into the downhole chamber without sacrifice to pressure control within the coiled tubing.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: April 19, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Zafer Erkol, Gokturk Tunc
  • Patent number: 7921924
    Abstract: A technique is provided for controlling actuation of a well component. A resistance device is deployed in a tool string and connected to a well tool to be actuated. The resistance device comprises a deformable body and a deforming member that move relative to one another during actuation of the well tool. Deformation of the deforming member provides constant resistance and consequent control over component actuation.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: April 12, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Zheng R. Xu, William D. Eatwell
  • Patent number: 7918279
    Abstract: A technique of forming perforations in a wellbore. The formation of perforations is carefully controlled by a perforating device to create a series of sequential perforations in a desired arrangement. The perforating device is lowered to a desired location in the wellbore and then moved incrementally to enable sequential perforations in the desired arrangement.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: April 5, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Lawrence J. Leising, Robert Michael Ramsey, Howard L. McGill
  • Patent number: 7920765
    Abstract: Disclosed are wellbore electric cable components, methods of manufacturing such components, and cables incorporating the components. Particularly, ruggedized optical fibers useful for forming slickline electric cables are described. The ruggedized optical fiber components contain one or more coated optical fibers, metallic conductors, non-fiber-reinforced resins, and long-fiber-reinforced resins. The optical fiber(s) are generally positioned in the center of the component, while the metallic conductors are helically disposed around the metallic conductors. The long-fiber-reinforced resin forms an outer jacket around the combination of optical fibers and metallic conductors. A non-fiber-reinforced resin is disposed directly upon the metallic conductors, between the conductors and long-fiber-reinforced resin.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: April 5, 2011
    Assignee: Schlumberger Technology Corporation
    Inventor: Joseph Varkey
  • Patent number: 7912333
    Abstract: A powered fiber optic cable for use in a hydrocarbon well of extensive depth and/or deviation. The cable may couple to a downhole tool for deployment to well locations of over 30,000 feet in depth while maintaining effective surface communication and powering of the tool. The cable may be configured to optimize volume within a core thereof by employing semi-circular forward and return power conducting portions about a central fiber optic portion. As such, the cable may maintain a lightweight character and a low profile of less than about 0.5 inches in diameter in spite of powering requirements for the downhole tool or the extensive length of the cable itself.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: March 22, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Joseph Varkey, Vladimir Hernandez-Solis, Surya Simanjuntak, Vadim Protasov, Byong Jun Kim, Jushik Yun, Jose Ramon Lozano-Gendreau
  • Patent number: 7905282
    Abstract: A pipe conveyed well logging assembly is provided that includes a pipe string; a carrier assembly connected to the pipe string; and a memory logging tool carried by the carrier assembly and movable from a removably latched retracted position, protected within the carrier assembly, to a removably latched extended position, at least partially protruding from a lower end of the carrier assembly.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: March 15, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Harold Steven Bissonnette, Todor K Sheiretov, Christopher S Del Campo, Matthew McCoy
  • Patent number: 7900893
    Abstract: A method for controlling the tension in a spooled device disposed on a winch, comprises providing an input signal to a controller indicative of a measured tension in the spooled device, providing an input signal to the controller indicative of a desired tension in the spooled device, and providing an output signal from the controller to adjust the speed of the winch based on a difference between the desired tension in the spooled device and the measured tension in the spooled device.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: March 8, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Lucas Teurlay, Stephane Breard, Dominique Aubry