Patents by Inventor Michael S. Crosskno
Michael S. Crosskno 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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Patent number: 7902827Abstract: An induction logging device is provided with additional electrodes. One set of electrodes provides voltages that are indicative of the current distribution in the borehole. The output of the first set of electrodes may be used for estimating formation resistivity. A second set of electrodes may be used to provide an image of the formation.Type: GrantFiled: September 14, 2007Date of Patent: March 8, 2011Assignee: Baker Hughes IncorporatedInventors: Stanislav W. Forgang, Randy Gold, Otto N. Fanini, Michael S. Crosskno, Tammye Crosskno, legal representative
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Patent number: 7629792Abstract: Misalignment of the transmitter and receiver coils of an induction logging tool is determined by positioning the logging tool with a coil axially encompassing the transmitter coil and/or the receiver coil, and activating the transmitter at a plurality of rotational angles.Type: GrantFiled: October 30, 2007Date of Patent: December 8, 2009Assignee: Baker Hughes IncorporatedInventors: Luis M. Pelegri, Stanislav W. Forgang, Michael S. Crosskno
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Patent number: 7598741Abstract: The present invention improves measurement of the formation induction response in the presence of the primary magnetic field generated by a logging tool's transmitter. A structure is provided having a new combination of electrical and mechanical design features which provide logging tool for internal calibration and checking of antenna performance and characteristics before during and after well logging operations.Type: GrantFiled: March 13, 2007Date of Patent: October 6, 2009Assignee: Baker Hughes IncorporatedInventors: Otto N. Fanini, Stanislav W. Forgang, Michael S. Crosskno
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Publication number: 20080197851Abstract: Calibration of the arrays of a multicomponent induction logging tool is achieved by positioning the tool horizontally above ground. The upper and lower housings of the tool are connected by a borehole conductivity simulator which as a resistance comparable to that of a borehole. Axial and radial positioning of the transmitter coils is done by monitoring outputs at receiver coils to achieve a minimum.Type: ApplicationFiled: January 25, 2007Publication date: August 21, 2008Applicant: Baker Hughes IncorporatedInventors: Stanislav W. Forgang, Randy Gold, Luis M. Pelegri, Michael S. Crosskno
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Patent number: 7408355Abstract: Calibration of the arrays of a multicomponent induction logging tool is achieved by positioning the tool horizontally above ground. The upper and lower housings of the tool are connected by a borehole conductivity simulator which as a resistance comparable to that of a borehole. Axial and radial positioning of the transmitter coils is done by monitoring outputs at receiver coils to achieve a minimum.Type: GrantFiled: January 25, 2007Date of Patent: August 5, 2008Assignee: Baker Hughes IncorporatedInventors: Stanislav W. Forgang, Randy Gold, Luis M. Pelegri, Michael S. Crosskno
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Patent number: 7319331Abstract: Misalignment of the transmitter and receiver coils of an induction logging tool is determined by positioning the logging tool with a coil axially encompassing the transmitter coil and/or the receiver coil, and activating the transmitter at a plurality of rotational angles.Type: GrantFiled: January 26, 2006Date of Patent: January 15, 2008Assignee: Baker Hughes IncorporatedInventors: Luis M. Pelegri, Stanislav W. Forgang, Michael S. Crosskno
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Publication number: 20070170923Abstract: Calibration of the arrays of a multicomponent induction logging tool is achieved by positioning the tool horizontally above ground. The upper and lower housings of the tool are connected by a borehole conductivity simulator which as a resistance comparable to that of a borehole. Axial and radial positioning of the transmitter coils is done by monitoring outputs at receiver coils to achieve a minimum.Type: ApplicationFiled: January 25, 2007Publication date: July 26, 2007Applicant: Baker Hughes IncorporatedInventors: Stanislav W. Forgang, Randy Gold, Luis M. Pelegri, Michael S. Crosskno
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Patent number: 7205770Abstract: Calibration of the arrays of a multicomponent induction logging tool is achieved by positioning the tool horizontally above ground. The upper and lower housings of the tool are connected by a borehole conductivity simulator which as a resistance comparable to that of a borehole. Axial and radial positioning of the transmitter coils is done by monitoring outputs at receiver coils to achieve a minimum.Type: GrantFiled: March 8, 2006Date of Patent: April 17, 2007Assignee: Baker Hughes IncorporatedInventors: Stanislav W. Forgang, Randy Gold, Luis M. Pelegri, Michael S. Crosskno
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Patent number: 7199586Abstract: A transverse induction logging tool having a transmitter and receiver for downhole sampling of formation properties, the tool having a symmetrical shielded split-coil transmitter coil and a bucking coil interposed between the split transmitter coils to reduce coupling of the transmitter time varying magnetic field into the receiver. The tool provides symmetrical shielding of the coils and grounding at either the transmitter or receiver end only to reduce coupling of induced currents into the received signal. The tool provides an insulator between receiver electronics and the conductive receiver housing having contact with conductive wellbore fluid, to reduce parasitic current flowing in a loop formed by the upper housing, feed through pipe, lower housing and wellbore fluid adjacent the probe housing or mandrel. An internal verification loop is provided to track changes in transmitter current in the real and quadrature component of the received data signal.Type: GrantFiled: May 7, 2004Date of Patent: April 3, 2007Assignee: Baker Hughes IncorporatedInventors: Otto N. Fanini, Stanislav W. Forgang, Michael S. Crosskno
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Patent number: 7190169Abstract: The present invention improves measurement of the formation induction response in the presence of the primary magnetic field generated by a logging tool's transmitter. In a exemplary embodiment of the present invention, a structure is provided having a new combination of electrical and mechanical design features which provide logging tool for internal calibration and checking of antenna performance and characteristics before during and after well logging operations. In one aspect of the invention a logging tool is provided comprising a verification winding for coupling a verification signal into the receiver coil.Type: GrantFiled: June 15, 2004Date of Patent: March 13, 2007Assignee: Baker Hughes IncorporatedInventors: Otto N. Fanini, Stanislav W. Forgang, Michael S. Crosskno
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Publication number: 20040207403Abstract: A transverse induction logging tool having a transmitter and receiver for downhole sampling of formation properties, the tool having a symmetrical shielded split-coil transmitter coil and a bucking coil interposed between the split transmitter coils to reduce coupling of the transmitter time varying magnetic field into the receiver. The tool provides symmetrical shielding of the coils and grounding at either the transmitter or receiver end only to reduce coupling of induced currents into the received signal. The tool provides an insulator between receiver electronics and the conductive receiver housing having contact with conductive wellbore fluid, to reduce parasitic current flowing in a loop formed by the upper housing, feed through pipe, lower housing and wellbore fluid adjacent the probe housing or mandrel. An internal verification loop is provided to track changes in transmitter current in the real and quadrature component of the received data signal.Type: ApplicationFiled: May 7, 2004Publication date: October 21, 2004Applicant: BAKER HUGHES INCORPORATEDInventors: Otto N. Fanini, Stanislav W. Forgang, Michael S. Crosskno
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Patent number: 6734675Abstract: A transverse induction logging tool having a transmitter and receiver for downhole sampling of formation properties, the tool having a symmetrical shielded split-coil transmitter coil and a bucking coil interposed between the split transmitter coils to reduce coupling of the transmitter time varying magnetic field into the receiver. The tool provides symmetrical shielding of the coils and grounding at either the transmitter or receiver end only to reduce coupling of induced currents into the received signal. The tool provides an insulator between receiver electronics and the conductive receiver housing having contact with conductive wellbore fluid, to reduce parasitic current flowing in a loop formed by the upper housing, feed through pipe, lower housing and wellbore fluid adjacent the probe housing or mandrel. An internal verification loop is provided to track changes in transmitter current in the real and quadrature component of the received data signal.Type: GrantFiled: October 1, 2002Date of Patent: May 11, 2004Assignee: Baker Hughes IncorporatedInventors: Otto N. Fanini, Stanislav W. Forgang, Michael S. Crosskno
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Patent number: 6586939Abstract: A transverse induction logging tool having a transmitter and receiver for downhole sampling of formation properties, the tool having a symmetrical shielded split-coil transmitter coil and a bucking coil interposed between the split transmitter coils to reduce coupling of the transmitter time varying magnetic field into the receiver. The tool provides symmetrical shielding of the coils and grounding at either the transmitter or receiver end only to reduce coupling of induced currents into the received signal. The tool provides an insulator between receiver electronics and the conductive receiver housing having contact with conductive wellbore fluid, to reduce parasitic current flowing in a loop formed by the upper housing, feed through pipe, lower housing and wellbore fluid adjacent the probe housing or mandrel. An internal verification loop is provided to track changes in transmitter current in the real and quadrature component of the received data signal.Type: GrantFiled: December 24, 1999Date of Patent: July 1, 2003Assignee: Baker Hughes IncorporatedInventors: Otto N. Fanini, Stanislav W. Forgang, Michael S. Crosskno
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Publication number: 20030090269Abstract: A transverse induction logging tool having a transmitter and receiver for downhole sampling of formation properties, the tool having a symmetrical shielded split-coil transmitter coil and a bucking coil interposed between the split transmitter coils to reduce coupling of the transmitter time varying magnetic field into the receiver. The tool provides symmetrical shielding of the coils and grounding at either the transmitter or receiver end only to reduce coupling of induced currents into the received signal. The tool provides an insulator between receiver electronics and the conductive receiver housing having contact with conductive wellbore fluid, to reduce parasitic current flowing in a loop formed by the upper housing, feed through pipe, lower housing and wellbore fluid adjacent the probe housing or mandrel. An internal verification loop is provided to track changes in transmitter current in the real and quadrature component of the received data signal.Type: ApplicationFiled: October 1, 2002Publication date: May 15, 2003Applicant: BAKER HUGHES INCORPORATEDInventors: Otto N. Fanini, Stanislav W. Forgang, Michael S. Crosskno