Patents Assigned to Schlumberger Technology
  • METHOD AND SYSTEM FOR DATA CONTEXT SERVICE
    Publication number: 20090063230
    Abstract: The invention relates to a method of performing an oilfield operation. The method steps include extracting context information from a host application associated with an oilfield project, sorting the context information into a plurality of dimensions of relevance, generating at least one search profile for each of the plurality of dimensions of relevance, requesting a plurality of searches using the at least one search profile, receiving one or more oilfield data items resulting from the plurality of searches, and selectively adjusting the oilfield operation based on one or more oilfield data items.
    Type: Application
    Filed: August 26, 2008
    Publication date: March 5, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Floyd Broussard, Najib Abusalbi
  • SYSTEM AND METHOD FOR ENGAGING COMPLETIONS IN A WELLBORE
    Publication number: 20090056947
    Abstract: A technique is provided for engaging and disengaging an upper completion with a lower completion positioned in a wellbore. The upper completion comprises an upper communication line, and the lower completion comprises a lower communication line. The upper completion is mechanically latched with the lower completion and the communication lines are coupled in a manner that enables selective engagement and disengagement. A communication line union is used to connect the upper communication line and the lower communication line in a plurality of rotational orientations of the upper completion relative to the lower completion.
    Type: Application
    Filed: September 5, 2007
    Publication date: March 5, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Michael H. Du, Gary L. Rytlewski, William D. Chapman
  • GEOMETRICAL OPTIMIZATION OF MULTI-WELL TRAJECTORIES
    Publication number: 20090056935
    Abstract: A novel method is presented to automatically design a multi-well development plan given a set of previously interpreted subsurface targets. This method identifies the optimal plan by minimizing the total cost as a function of existing and required new platforms, the number of wells, and the drilling cost of each of the wells. The cost of each well is a function of the well path and the overall complexity of the well.
    Type: Application
    Filed: November 3, 2008
    Publication date: March 5, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Michael David Prange, Peter Gerhard Tilke, Clinton Dane Chapman, Darren Lee Aklestad
  • HIGH ANGLE WATER FLOOD KICKOVER TOOL
    Publication number: 20090056937
    Abstract: A kickover tool for placing and extracting a valve in a mandrel having a hydraulic piston, a kickover arm portion mechanically connected to the hydraulic piston, the kickover arm portion being actuated by application of pressure to the piston. Upon full stoke of the piston, pressure is relieved, and measurement of the pressure relief can be used to indicate proper placement in a side pocket mandrel.
    Type: Application
    Filed: August 22, 2008
    Publication date: March 5, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Arunkumar Arumugam, Tyson Messick, Steven Anyan, Kenneth C. Burnett, III
  • FLUID LOSS CONTROL FLAPPER VALVE
    Publication number: 20090056951
    Abstract: A system for completing a well bore, comprises, a string having a housing having an inner diameter, the housing defining an inner channel, a valve seat having an inner diameter coupled to the housing, a flapper pivotally coupled to the valve seat, the flapper configured to move from a first open position to a second closed position; and a sleeve positioned in the inner channel of the valve seat and configured to retain the flapper in the first open position. The flapper has an arcuate orientation that is generally concentric with the housing when the flapper is in the first open position, the flapper isolates a region of the inner channel of the housing below the flapper from a region of the inner channel of the housing above the flapper when the flapper is in a closed position, and the flapper may move to the second closed position when the sleeve is withdrawn from the inner channel of the valve seat.
    Type: Application
    Filed: August 28, 2007
    Publication date: March 5, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Bryan Mosher, Robert Kirkwood
  • SYSTEM AND METHOD FOR PROTECTING SUBMERSIBLE MOTOR WINDING
    Publication number: 20090058221
    Abstract: A technique is provided for constructing a submersible motor. The submersible motor has a stator positioned within a housing. Windings are arranged through the stator with end coils on opposite ends of the stator. The winding end coils are supported by a support structure that prevents the end coils from collapsing inwardly.
    Type: Application
    Filed: August 29, 2007
    Publication date: March 5, 2009
    Applicant: Schlumberger Technology Corporation
    Inventor: Joseph C. Liu
  • HIGH ANGLE WATER FLOOD KICKOVER TOOL
    Publication number: 20090056954
    Abstract: A kickover tool for placing and extracting a valve in a mandrel having a tool body extending in a longitudinal direction and having a hydraulic piston chamber therein; a hydraulic piston located inside the hydraulic piston chamber; a kickover arm portion mechanically connected to the hydraulic piston, the kickover arm portion comprising a kickover arm having a tool portion; the kickover arm has a non-kicked-over position where the kickover arm is substantially coaxial with the longitudinal direction and a kicked-over position where the kickover arm is substantially non-coaxial with the longitudinal direction; wherein the kickover arm moves to the kicked-over position upon extension of the hydraulic piston.
    Type: Application
    Filed: August 31, 2007
    Publication date: March 5, 2009
    Applicant: Schlumberger Technology Corporation
    Inventors: Arunkumar Arumugam, Tyson Messick, Steven Anyan, Kenneth C. Burnett, III
  • FLOW CONTROL DEVICE AND METHOD FOR A DOWNHOLE OIL-WATER SEPARATOR
    Publication number: 20090056939
    Abstract: A downhole device having an oil/water separator having a well fluid inlet, an oil stream outlet conduit, and a water stream outlet conduit; a removable flow-restrictor located in at least one of the water stream outlet conduit or the oil stream outlet conduit.
    Type: Application
    Filed: December 11, 2007
    Publication date: March 5, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: MATTHEW R. HACKWORTH, NIHAT OVUTMEN, KEVIN J. FORBES, LANCE I. FIELDER, ALLAN ROSS
  • Method and composition of preparing polymeric fracturing fluids
    Patent number: 7497263
    Abstract: In the presence of certain polyols, a guar gum or similar polysaccharide thickener solution is boron crosslinked before achievement of complete hydration of the thickener, without compromising the viscosity level achieved in a fracturing fluid by the time it is pumped into the wellbore and fractures the subterranean formation adjacent the wellbore. Methods continuously involve hydrating a polysaccharide thickener to an extent of 10% to 75%, but less than full hydration. Before 75% hydration is exceeded, a boron crosslinker is added. Upon addition of the boron crosslinker, the fluid is injected into the wellbore to stimulate hydrocarbon production. Because less time is needed for hydration, well site mixing equipment is down-sized smaller to achieve better efficiency and cost savings.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: March 3, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Michael D. Parris, Ismail El Kholy
  • System and method for forming cavities in a well
    Patent number: 7497259
    Abstract: A technique is provided to form 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: December 14, 2006
    Date of Patent: March 3, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Lawrence J. Leising, Robert Michael Ramsey, Howard L. McGill
  • Optical wellbore fluid characteristic sensor
    Patent number: 7498567
    Abstract: Evanescent waveguide sensors for measuring and determining the composition of wellbore fluids in situ are provided. The waveguides are provided on substrates have a thickness and strength sufficient to withstand wellbore pressures and a sufficient surface area to allow for broad range measuring of the wellbore characteristics. The optical sensors facilitate determination of the wellbore fluid composition without requiring in-tool sampling of the wellbore fluid.
    Type: Grant
    Filed: June 23, 2007
    Date of Patent: March 3, 2009
    Assignee: Schlumberger Technology Corporation
    Inventor: Dominic Brady
  • Conditioning Ferrous Alloys into Cracking Susceptible and Fragmentable Elements for Use in a Well
    Publication number: 20090050334
    Abstract: A technique includes providing a tool to be deployed in a well to perform a downhole function. The downhole function requires a minimum structural integrity for an element of the tool. The technique includes forming at least part of the element from a ferrous alloy and charging the alloy with hydrogen cause the element to be more prone to cracking than before the hydrogen charging.
    Type: Application
    Filed: August 24, 2007
    Publication date: February 26, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Manuel Marya, Andrew T. Werner
  • DOWNHOLE VALVE HAVING INCREMENTALLY ADJUSTABLE OPEN POSITIONS AND A QUICK CLOSE FEATURE
    Publication number: 20090050335
    Abstract: A valve that is usable with a well includes an indexer and a closing mechanism. The indexer includes a profile to establish a sequence of open settings for the valve, and the indexer is adapted to respond to first control stimuli to transition the valve through the settings according to the sequence. The closing mechanism is adapted to operate independently of the sequence in response to a second control stimulus to close the valve.
    Type: Application
    Filed: August 21, 2007
    Publication date: February 26, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Laure Mandrou
  • SYSTEM AND METHOD FOR PERFORMING OILFIELD SIMULATION OPERATIONS
    Publication number: 20090055141
    Abstract: The invention relates to a method of performing an oilfield operation of an oilfield having at least one wellsite, each wellsite having a wellbore penetrating a subterranean formation for extracting fluid from an underground reservoir therein.
    Type: Application
    Filed: September 21, 2007
    Publication date: February 26, 2009
    Applicants: SCHLUMBERGER TECHNOLOGY CORPORATION, Total SA, Chevron U.S.A. Inc.
    Inventors: Arthur Moncorge, Hamdi A. Tchelepi
  • PROVIDING A RECHARGEABLE HYDRAULIC ACCUMULATOR IN A WELLBORE
    Publication number: 20090050373
    Abstract: A rechargeable hydraulic accumulator is provided in a wellbore, and a component is actuated by discharging the hydraulic accumulator. The hydraulic accumulator is recharged by increasing pressure in a fluid conduit.
    Type: Application
    Filed: August 21, 2007
    Publication date: February 26, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Ives D. Loretz
  • Technique and apparatus for multiple zone perforating
    Patent number: 7493958
    Abstract: A technique that is usable with a well includes running a production string into the well so that the production string extends through a first isolated zone of the well and at least into a second isolated zone that is located farther into the well than the first isolated zone. The production string includes integrated perforating charges. The technique also includes firing the perforating charges inside the first zone; and after the firing, maintaining fluid isolation between the first isolated zone and a passageway of the production string. The passageway communicates well fluid from the second isolated zone.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: February 24, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Joe C. Hromas, Larry Grigar
  • Apparatus and method to connect two parts without rotation
    Patent number: 7493960
    Abstract: A connector is provided that enables connection between two parts without rotation of either of the two parts. The connector comprises a first part with N engagement members; a second part with N+1 engagement members; and a sleeve having a first and second end, the first end having N engagement members for engaging the N engagement members of the first part, the second end having N+1 engagement members for engaging the N+1 engagement members of the second end.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: February 24, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Lawrence J. Leising, Howard L. McGill
  • Control line telemetry
    Patent number: 7493962
    Abstract: A system and method enable telemetry between a downhole device located in a wellbore and an uphole device. Electrical signals are communicated between locations via at least one fluid carrying control line. The control line provides a path for fluid flow as well as for the transmission of electrical signals. Thus, electrical signals may be transmitted from one location to another within a wellbore without separate electrical wires or cables.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: February 24, 2009
    Assignee: Schlumberger Technology Corporation
    Inventor: Randolf J. Sheffield
  • Multi-scale finite-volume method for use in subsurface flow simulation
    Patent number: 7496488
    Abstract: A multi-scale finite-volume (MSFV) method to solve elliptic problems with a plurality of spatial scales arising from single or multi-phase flows in porous media is provided. The method efficiently captures the effects of small scales on a coarse grid, is conservative, and treats tensor permeabilities correctly. The underlying idea is to construct transmissibilities that capture the local properties of a differential operator. This leads to a multi-point discretization scheme for a finite-volume solution algorithm. Transmissibilities for the MSFV method are preferably constructed only once as a preprocessing step and can be computed locally.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: February 24, 2009
    Assignees: Schlumberger Technology Company, Chevron U.S.A. Inc., ETH Zurich
    Inventors: Patrick Jenny, Seong Lee, Hamdi A. Tchelepi
  • Water shut off method and apparatus
    Patent number: 7493947
    Abstract: A technique is provided to control flow in subterranean applications, such as hydrocarbon fluid production applications. The technique utilizes an material formed, at least in part, of material that swell in the presence of a specific substance or substances. The material is deployed as a membrane outside a base pipe to desired subterranean locations. Once located, the material allows the flow of hydrocarbon fluids but swells upon contact with the specific substance or substances to limit inflow of undesirable fluids.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: February 24, 2009
    Assignee: Schlumberger Technology Corporation
    Inventor: Donald W. Ross