Patents by Inventor Jacques Tabanou
Jacques Tabanou 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).
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Publication number: 20070137293Abstract: A method for determining a property of formations surrounding an earth borehole being drilled with a drill bit at the end of a drill string, using drilling fluid that flows downward through the drill string, exits through the drill bit, and returns toward the earth's surface in the annulus between the drill string and the periphery of the borehole, including the following steps: obtaining, downhole near the drill bit, a pre-bit sample of the mud in the drill string as it approaches the drill bit; obtaining, downhole near the drill bit, a post-bit sample of the mud in the annulus, entrained with drilled earth formation, after its egression from the drill bit; implementing pre-bit measurements on the pre-bit sample; implementing post-bit measurements on the post-bit sample; and determining a property of the formations from the post-bit measurements and the pre-bit measurements.Type: ApplicationFiled: December 19, 2005Publication date: June 21, 2007Inventors: Julian Pop, Reza Taherian, Martin Poitzsch, Jacques Tabanou
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Publication number: 20060145700Abstract: A tool for electromagnetic logging of a formation includes a tool body configured to move in a borehole penetrating the formation; an antenna array disposed on the tool body; and an electronic unit configured to control operation of the antenna array, wherein the antenna array comprises at least one transmitter and at least one receiver, wherein at least one selected from the group consisting of the at least one transmitter and the at least one receiver comprises a printed circuit antenna.Type: ApplicationFiled: December 31, 2004Publication date: July 6, 2006Inventors: Jacques Tabanou, Reza Taherian
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Patent number: 6950748Abstract: Techniques for determining a formation property by simplifying various two-geological-layer or multi-geological-layer models into a multi-electrical-layer model. A volume fraction of a layer in a multi-electrical-layer model is determined for an anisotropic region (sliding window) of the formation. The multi-electrical-layer electrical model includes a relative-lower-resistivity layer and a relative-higher-resistivity layer. A high-resolution resistivity measurement is used in the determination and resistivities for the relative-lower-resistivity layer and for the relative-higher-resistivity layer based on the volume fraction and bulk resistivity measure ments of the anisotropic region are determined. The formation property is based on the volume fraction, the resistivity of the relative-lower-resistivity layer, the resistivity of the relative-higher-resistivity layer, a total porosity of the anisotropic region, and bulk resistivity measurements of the region.Type: GrantFiled: July 25, 2003Date of Patent: September 27, 2005Assignee: Schlumberger Technology CorporationInventors: Cheng Bing Liu, Qiming Li, Frank P. Shray, Jacques Tabanou
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Publication number: 20050189142Abstract: A method and apparatus for drilling at least one wellbore from an offsite location is provided. Each wellbore is located at a wellsite having a drilling rig with a downhole drilling tool suspended therefrom. The downhole drilling tool is selectively advanced into the earth to form the wellbore. The downhole drilling tool is operated according to a wellsite setup. Wellsite parameters are collected from a plurality of sensors positioned about the wellsite. The wellsite parameters are transmitted to an offsite control center. The offsite control center performs an analysis of the wellsite parameters and automatically adjusts the wellsite setup from the offsite control center based on the analysis.Type: ApplicationFiled: March 1, 2004Publication date: September 1, 2005Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Ernesto Garcia, Dimitrios Pirovolou, Walter Aldred, Reinhart Ciglenec, Jacques Tabanou
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Publication number: 20050171697Abstract: A system and method is disclosed for determining a physical characteristic or property associated with each of a plurality of layers of laminated formation traversed by a wellbore, wherein the laminated formation includes thin beds. The method includes providing one or more high resolution logs of a formation property for the laminated formation. From this log, the bed boundaries are detected and more particularly, the individual beds disposed between the boundaries. Then, the facies for each of the plurality of the beds detected is identified, using one or more high resolution logs of the laminated formation. Each of the identified facies is then defined. This includes importing volumetric descriptions for each of the facies and assigning one of the volumetric descriptions to each of a plurality of the beds detected, wherein each of the volumetric descriptions assigned to a bed is derived from a bed having the same facies.Type: ApplicationFiled: February 2, 2004Publication date: August 4, 2005Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Denis Heliot, Jacques Tabanou, Jaideva Goswami
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Publication number: 20050114030Abstract: Techniques for determining a formation property by simplifying various two-geological-layer or multi-geological-layer models into a multi-electrical-layer model. A volume fraction of a layer in a multi-electrical-layer model is determined for an anisotropic region (sliding window) of the formation. The multi-electrical-layer electrical model includes a relative-lower-resistivity layer and a relative-higher-resistivity layer. A high-resolution resistivity measurement is used in the determination and resistivities for the relative-lower-resistivity layer and for the relative-higher-resistivity layer based on the volume fraction and bulk resistivity measurements of the anisotropic region are determined. The formation property is based on the volume fraction, the resistivity of the relative-lower-resistivity layer, the resistivity of the relative-higher-resistivity layer, a total porosity of the anisotropic region, and bulk resistivity measurements of the region.Type: ApplicationFiled: July 25, 2003Publication date: May 26, 2005Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Cheng Liu, Qiming Li, Frank Shray, Jacques Tabanou
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Publication number: 20050083061Abstract: A method for determining an electrical property of a formation includes acquiring a first resistivity measurement by energizing a first transmitter and receiving a first signal in a first receiver, wherein the first transmitter and the first receiver are disposed on the logging tool in a first orientation substantially parallel to a longitudinal axis of the logging tool; acquiring a second resistivity measurement by energizing a second transmitter and receiving a second signal in a second receiver, wherein the second transmitter and the second receiver are disposed on the logging tool in a second orientation that is substantially orthogonal to the first orientation; and deriving the electrical property of the formation from a difference measurement that is derived from the first resistivity measurement and the second resistivity measurement.Type: ApplicationFiled: October 17, 2003Publication date: April 21, 2005Inventors: Jacques Tabanou, Hanming Wang, Dzevat Omeragic
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Publication number: 20050067190Abstract: A resistivity logging sensor for logging while drilling a well using an oil-based mud includes a sensor body; a first current injector electrode disposed on the sensor body, wherein the first current injector electrode is electrically insulated from the sensor body; at least two current return electrodes disposed on the sensor body at a selected distance from the first current injector electrode, wherein the at least two current return electrodes are disposed proximate to each other and are electrically insulated from the sensor body; and an electrical source configured to energize the first current injector electrode with a current having a voltage of no less than 50 mvolts and a frequency of no less than 1 KHz.Type: ApplicationFiled: September 29, 2003Publication date: March 31, 2005Inventors: Jacques Tabanou, Dzevat Omeragic, Jean Seydoux, Attilio Pisoni
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Patent number: 6864801Abstract: An apparatus and a method for controlling oilfield production to improve efficiency includes a remote sensing unit that is placed within a subsurface formation, an antenna structure for communicating with the remote sensing unit, a casing joint having nonconductive “windows” for allowing a internally located antenna to communicate with the remote sensing unit, and a system for obtaining subsurface formation data and for producing the formation data to a central location for subsequent analysis. The remote sensing unit is placed sufficiently far from the wellbore to reduce or eliminate effects that the wellbore might have on formation data samples taken by the remote sensing unit. The remote sensing unit is an active device with the capability of responding to control commands by determining certain subsurface formation characteristics such as pressure or temperature, and transmitting corresponding data values to a wellbore tool.Type: GrantFiled: April 3, 2002Date of Patent: March 8, 2005Assignee: Schlumberger Technology CorporationInventors: Jacques Tabanou, Reinhart Ciglenec
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Patent number: 6766854Abstract: The present invention relates to a well-bore sensor apparatus and method. The apparatus includes a downhole tool carrying at least one sensor plug for deployment into the sidewall of a well-bore. The apparatus may also be used in conjunction with a surface control unit and a communication link for operatively coupling the sensor plug to the surface control unit. The sensor plug is capable of collecting well-bore data, such as pressure or temperature, and communicating the data uphole via a communication link, such as the downhole tool or an antenna. The downhole data may then be analyzed and control commands sent in response thereto. The sensor plug and/or the downhole tool may be made to respond to such control commands. In some embodiments, multiple surface control units for corresponding wells may be networked for decision making and control across multiple well-bores.Type: GrantFiled: June 6, 2002Date of Patent: July 27, 2004Assignee: Schlumberger Technology CorporationInventors: Reinhart Ciglenec, Jacques Tabanou, Thomas MacDougall, Kenneth Havlinek, Arthur Liberman, Ian Bryant, Troy Fields
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Patent number: 6691779Abstract: An apparatus and a method for controlling oilfield production to improve efficiency includes a remote sensing unit that is placed within a subsurface formation, an antenna structure for communicating with the remote sensing unit, a casing joint having nonconductive “windows” for allowing a internally located antenna to communicate with the remote sensing unit, and a system for obtaining subsurface formation data and for producing the formation data to a central location for subsequent analysis. The remote sensing unit is placed sufficiently far from the wellbore to reduce or eliminate effects that the wellbore might have on formation data samples taken by the remote sensing unit. The remote sensing unit is an active device with the capability of responding to control commands by determining certain subsurface formation characteristics such as pressure or temperature, and transmitting corresponding data values to a wellbore tool.Type: GrantFiled: October 28, 1999Date of Patent: February 17, 2004Assignee: Schlumberger Technology CorporationInventors: Abdurrahman Sezginer, Jacques Tabanou, Reinhart Ciglenec
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Publication number: 20020195247Abstract: The present invention relates to a well-bore sensor apparatus and method. The apparatus includes a downhole tool carrying at least one sensor plug for deployment into the sidewall of a well-bore. The apparatus may also be used in conjunction with a surface control unit and a communication link for operatively coupling the sensor plug to the surface control unit. The sensor plug is capable of collecting well-bore data, such as pressure or temperature, and communicating the data uphole via a communication link, such as the downhole tool or an antenna. The downhole data may then be analyzed and control commands sent in response thereto. The sensor plug and/or the downhole tool may be made to respond to such control commands. In some embodiments, multiple surface control units for corresponding wells may be networked for decision making and control across multiple well-bores.Type: ApplicationFiled: June 6, 2002Publication date: December 26, 2002Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Reinhart Ciglenec, Jacques Tabanou, Thomas MacDougall, Kenneth Havlinek, Arthur Liberman, Ian Bryant, Troy Fields
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Publication number: 20020149498Abstract: An apparatus and a method for controlling oilfield production to improve efficiency includes a remote sensing unit that is placed within a subsurface formation, an antenna structure for communicating with the remote sensing unit, a casing joint having nonconductive “windows” for allowing a internally located antenna to communicate with the remote sensing unit, and a system for obtaining subsurface formation data and for producing the formation data to a central location for subsequent analysis. The remote sensing unit is placed sufficiently far from the wellbore to reduce or eliminate effects that the wellbore might have on formation data samples taken by the remote sensing unit. The remote sensing unit is an active device with the capability of responding to control commands by determining certain subsurface formation characteristics such as pressure or temperature, and transmitting corresponding data values to a wellbore tool.Type: ApplicationFiled: April 3, 2002Publication date: October 17, 2002Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Jacques Tabanou, Reinhart Ciglenec, Clive Eckersley, Christian Chouzenoux
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Patent number: 6426917Abstract: An apparatus and a method for controlling oilfield production to improve efficiency includes a remote sensing unit that is placed within a subsurface formation, an antenna structure for communicating with the remote sensing unit, a casing joint having nonconductive “windows” for allowing a internally located antenna to communicate with the remote sensing unit, and a system for obtaining subsurface formation data and for producing the formation data to a central location for subsequent analysis. The remote sensing unit is placed sufficiently far from the wellbore to reduce or eliminate effects that the wellbore might have on formation data samples taken by the remote sensing unit. The remote sensing unit is an active device with the capability of responding to control commands by determining certain subsurface formation characteristics such as pressure or temperature, and transmitting corresponding data values to a wellbore tool.Type: GrantFiled: September 13, 1999Date of Patent: July 30, 2002Assignee: Schlumberger Technology CorporationInventors: Jacques Tabanou, Reinhart Ciglenec, Clive Eckersley, Christian Chouzenoux
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Patent number: 4319192Abstract: A dual resistivity and induction apparatus for the investigation of earth formations traversed by a borehole, comprises an electrode system, supported on a support member, comprising a central electrode and five pairs of electrodes respectively short-circuited and aligned symmetrically about the central electrode at increasing distances therefrom; the central electrode and the electrodes of the fourth and fifth pairs are called current electrodes, the electrodes of the first, second and third pairs are called voltage electrodes; a source of alternating current at a first frequency, f.sub.1, is coupled between the electrodes of the fifth and fourth pairs; a source of alternating current at a second frequency, f.sub.2, is coupled between the electrodes of the fifth pair and an electrode at electrical infinity with respect to the electrode system; a circuit arrangement coupled to the electrodes of the fourth pair for generating current at f.sub.Type: GrantFiled: January 18, 1979Date of Patent: March 9, 1982Assignee: Schlumberger Technology CorporationInventors: Roland Chemali, Jacques Tabanou