Patents by Inventor Jean-Pierre Delhomme
Jean-Pierre Delhomme 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: 20080105426Abstract: A method for estimating a permeability of a formation surrouning a borehole comprises applying transient well-test conditions to the borehole. A portion of the formation is excited with an acoustic signal. The acoustic response corresponding to the acoustic exciting is measured with an acoustic receiver located within the borehole. The permeability of the formation is estimated using the acoustic response.Type: ApplicationFiled: July 20, 2005Publication date: May 8, 2008Applicant: Schlumberger Tecnhnoloogy CorporationInventors: Cao Di, Jean-Pierre Delhomme, Yves Manin, Marwan Charara, Philippe Lacour-Gayet
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Patent number: 7346454Abstract: A method for depth matching borehole images and/or core section images is disclosed wherein signals from sensors at different levels on a logging tool are converted into an averaged signal representing the average bed signal at the center of the borehole at each of the different levels. A depth matching technique is applied to the averaged signals from the sensors at different levels on the logging tool to determine the optimum depth offset necessary for matching two sets of signals from sensors at the different levels of the logging tool. In an alternative embodiment of the invention a Hough transform is utilized to process the well log images and generate three-dimensional images in Hough space. The three dimensional images are converted into two-dimensional extremum curves. Depth matching is performed on the two dimensional extremum curves to calculate an offset to match the two dimensional extremum curves. The calculated offset is then applied to the well log images to depth match them.Type: GrantFiled: October 27, 2003Date of Patent: March 18, 2008Assignee: Schlumberger Technology CorporationInventors: Gilles Mathieu, Jean-Pierre Delhomme, Philip Cheung, Yinyu Wang
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Patent number: 7340384Abstract: A method for determining for a reservoir (1) containing fluids (W, O), the variation in the relative permeability (krO, krW) of at least one of the fluids, as a function of the saturation of at least one of the fluids (W, O),) is provided. According to this method a saturation distribution of one of the fluids of the reservoir is determined on the basis of a measurement of a physical property in the reservoir. A dynamic model (20) for the flow of fluids in the reservoir (1) is created. The dynamic model generates a saturation distribution. The saturation distribution (40) generated by the dynamic model is compared with saturation distribution obtained from measurement. The dynamic model (20) is updated with intermediate relative permeability values (krO)i and (krW)i and steps b and c are repeated if the saturation distribution generated by the dynamic model and that determined on the basis of measurement do not coincide.Type: GrantFiled: November 8, 2002Date of Patent: March 4, 2008Assignee: Schlumberger Technology CorporationInventors: Jean-Pierre Delhomme, Yves Manin
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Patent number: 7129704Abstract: A well (10) for producing water is characterized in that it includes a network of widely spaced electrodes (8) electrically coupled with measurement means (3) or with electric current generation means (1). By utilizing a measurement result, the progression of a salt water front heading for the well (10) may be detected.Type: GrantFiled: December 20, 2002Date of Patent: October 31, 2006Assignee: Schlumberger Technology CorporationInventors: Jean-Pierre Delhomme, Christian Jennevin, Philippe Souhaite, Eric Veignat
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Patent number: 7062072Abstract: A method of producing images of formations surrounding a borehole, comprises: obtaining values of a first parameter in the borehole as a function of depth and azimuth at a first resolution; obtaining values of a second parameter in the borehole as a function of depth only at a second resolution; establishing a relationship between the first and second parameters at a matched resolution; using the relationship to derive values of the second parameter as a function of depth and azimuth; and producing an image of the second parameter as a function of depth and azimuth using the derived values of the second parameter.Type: GrantFiled: April 11, 2003Date of Patent: June 13, 2006Assignee: Schlumberger Technology CorporationInventors: Hervé Anxionnaz, Jean-Pierre Delhomme, Raghu Ramamoorthy
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Publication number: 20060031017Abstract: A method for depth matching borehole images and/or core section images is disclosed wherein signals from sensors at different levels on a logging tool are converted into an averaged signal representing the average bed signal at the center of the borehole at each of the different levels. A depth matching technique is applied to the averaged signals from the sensors at different levels on the logging tool to determine the optimum depth offset necessary for matching two sets of signals from sensors at the different levels of the logging tool. In an alternative embodiment of the invention a Hough transform is utilized to process the well log images and generate three-dimensional images in Hough space. The three dimensional images are converted into two-dimensional extremum curves. Depth matching is performed on the two dimensional extremum curves to calculate an offset to match the two dimensional extremum curves. The calculated offset is then applied to the well log images to depth match them.Type: ApplicationFiled: October 27, 2003Publication date: February 9, 2006Applicant: Schlumberger Technology CorporationInventors: Gilles Mathieu, Jean-Pierre Delhomme, Philip Cheung, Yiny Wang
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Publication number: 20050077901Abstract: A well (10) for producing water is characterized in that it includes a network of widely spaced electrodes (8) electrically coupled with measurement means (3) or with electric current generation means (1). By utilizing a measurement result, the progression of a salt water front heading for the well (10) may be detected.Type: ApplicationFiled: December 20, 2002Publication date: April 14, 2005Inventors: Jean-Pierre Delhomme, Christian Jennevin, Philippe Souhaite, Eric Veignat
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Patent number: 6778918Abstract: A method of monitoring a fluid front movement is provided. The method includes: determining at least two techniques for monitoring the fluid front movement; determining a configuration of monitoring sensors, corresponding to the at least two monitoring techniques, from a joint sensitivity study of the at least two techniques; acquiring data with the monitoring sensors; and monitoring the fluid front by joint inverting the data.Type: GrantFiled: May 9, 2003Date of Patent: August 17, 2004Assignee: Schlumberger Technology CorporationInventors: Jean-Pierre Delhomme, Yves Manin, Marwan Charara
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Publication number: 20030223620Abstract: A method of producing images of formations surrounding a borehole, comprises: obtaining values of a first parameter in the borehole as a function of depth and azimuth at a first resolution; obtaining values of a second parameter in the borehole as a function of depth only at a second resolution; establishing a relationship between the first and second parameters at a matched resolution; using the relationship to derive values of the second parameter as a function of depth and azimuth; and producing an image of the second parameter as a function of depth and azimuth using the derived values of the second parameter.Type: ApplicationFiled: April 11, 2003Publication date: December 4, 2003Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Herve Anxionnaz, Jean-Pierre Delhomme, Raghu Ramamoorthy
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Publication number: 20030088391Abstract: A method for determining for a reservoir (1) containing fluids (W, O), the variation in the relative permeability (krO, krW) of at least one of the fluids, as a function of the saturation of at least one of the fluids (W, O),) is provided. According to this method a saturation distribution of one of the fluids of the reservoir is determined on the basis of a measurement of a physical property in the reservoir. A dynamic model (20) for the flow of fluids in the reservoir (1) is created. The dynamic model generates a saturation distribution. The saturation distribution (40) generated by the dynamic model is compared with saturation distribution obtained from measurement. The dynamic model (20) is updated with intermediate relative permeability values (krO)i and (krW)i and steps b and c are repeated if the saturation distribution generated by the dynamic model and that determined on the basis of measurement do not coincide.Type: ApplicationFiled: November 8, 2002Publication date: May 8, 2003Inventors: Jean-Pierre Delhomme, Yves Manin
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Patent number: 6272232Abstract: A morphological survey of geological formations traversed by a borehole includes constructing, from an initial image of the wall of the borehole representative of variations in a physical parameter of the formation in the longitudinal direction of the borehole (“depth”), and in the peripheral direction of the borehole wall (laterally), a “crossing-component image.” The cross-component image includes only those components of the parameter that extend all the way across the initial image from one side of the image to the other. The survey includes determining variations in one or more attributes relating to the parameter in the crossing-component image as a function of depth. The variations providing information relating to morphology to indicate solid zones, bedded zones, or different types of heterogeneous zones, for example.Type: GrantFiled: November 8, 1994Date of Patent: August 7, 2001Assignee: Schlumberger Technology CorporationInventors: Jean-Pierre Delhomme, Jean-François Rivest
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Patent number: 5809163Abstract: A method of characterizing texture heterogeneities in a geological formation traversed by a borehole. The method records an image of the borehole wall such as that provided by Schlumberger's Formation Microscanner (FMS) apparatus, representative of variations in a physical parameter of the formation in the longitudinal direction of the borehole and around the periphery of the wall. Geological objects are extracted from the image corresponding to a determined morphological type of heterogeneity. The variation in at least one attribute defined for this type of heterogeneity in the longitudinal direction of the borehole is determined. The invention is particularly applicable to vug detection.Type: GrantFiled: February 16, 1995Date of Patent: September 15, 1998Assignee: Schlumberger Technology CorporationInventors: Jean-Pierre Delhomme, Jean-Fran.cedilla.ois Rivest
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Patent number: 5299128Abstract: Data representing a two-dimensional image of the resistivity of a sector of a borehole wall is processed to produce selected flow-line data delineating the boundaries of beds of subsurface earth formations along sectors of the borehole. The latter bed-delineating image data for several circumferentially-spaced sectors is further processed to derive and present data defining the orientations of dip planes, by matching the bed-delineating flow-lines for the several sectors. This is done by focusing the latter flow-lines on a root flow-line, correlating those flow-lines to the root flow-line, and linking the flow-lines to the root flow-line according to a path of minimum cumulative cost.Type: GrantFiled: October 5, 1990Date of Patent: March 29, 1994Assignee: Schlumberger Technology CorporationInventors: Jean-Noel Antoine, Jean-Pierre Delhomme, Herve Ganem
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Patent number: 5057021Abstract: A method of visually presenting information representative of the dip characteristics of earth formations by means of a polychromatic chart. The preferred method comprises representing the dip information by means of an arrow plot comprising oriented symbols such as a nail so that the location of each nail head and the orientation of its tips are respectively representative of the amplitude of the dip and the azimuth direction of the dip. Each nail head is colored as a function of the direction of the dip with the color selected from a palette comprising a plurality of colors corresponding to dip azimuth directions.Type: GrantFiled: January 18, 1990Date of Patent: October 15, 1991Assignee: Schlumberger Technology CorporationInventor: Jean-Pierre Delhomme