Jan W Smits from 5502 Lacy St, Houston, TX 77007, age 59, Phone: 832 203-8730

Us Patents

Passive, Active And Semi-Active Cancellation Of Borehole Effects For Well Logging
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US Patent:

6693430, Feb 17, 2004
Filed:

Aug 23, 2002
Appl. No.:

10/064853
Inventors:

Richard A. Rosthal - Houston TX
Jan Wouter Smits - Sugar Land TX
Assignee:

Schlumberger Technology Corporation - Sugar Land TX
International Classification:

G01V 302
US Classification:

324338, 324347
Abstract:

Methods and apparatus for making subsurface measurements with reduced or eliminated borehole effects. Antenna and electrode configurations address the undesired axial electric currents that are induced along the borehole when antennas with tilted or transverse axes are used to make electromagnetic measurements. Current and measure electrodes are used in combination with antennas to limit the flow of undesired axial borehole currents. Embodiments use passive, active, or semi-active electrodes to limit the undesired current flow.

Intelligent Diagnosis Of Environmental Influence On Well Logs With Model-Based Inversion
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US Patent:

6832159, Dec 14, 2004
Filed:

Apr 23, 2003
Appl. No.:

10/249612
Inventors:

Jan W. Smits - Sugar Land TX
Peter T. Wu - Sugar Land TX
Qiming Li - Sugar Land TX
Cheng Bing Liu - Houston TX
Assignee:

Schlumberger Technology Corporation - Sugar Land TX
International Classification:

G01V 1100
US Classification:

702 11
Abstract:

A method for identifying environmental effects in well log data includes selecting a plurality of models, each of the plurality of models including at least one parameter to be optimized; fitting the models to the well log data by optimizing the at least one parameter, the fitting producing a plurality of optimized models; determining an indicator of goodness of fit for each of the plurality of optimized models; and selecting a model representing a best fit of the well log data based on the indicator.

Insulated Sleeve With Conductive Electrodes To Reduce Borehole Effects For An Induction Tool
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US Patent:

7023212, Apr 4, 2006
Filed:

Dec 31, 2004
Appl. No.:

11/030668
Inventors:

Kuo Chiang Chen - Sugar Land TX, US
Robert C. Smith - Houston TX, US
David T. Oliver - Sugar Land TX, US
Gary A. Hazen - Houston TX, US
Dean M. Homan - Sugar Land TX, US
Jan W. Smits - Sugar Land TX, US
Assignee:

Schlumberger Technology Corporation - Sugar Land TX
International Classification:

G01V 3/02
US Classification:

324339, 324351
Abstract:

A well logging tool and method are disclosed comprising a conductive mandrel, an antenna array disposed around the conductive mandrel, wherein the antenna array comprises a plurality of antennas disposed on insulating supports and at least one contact spacer, the at least one contact spacer having at least one conductor channel having a contact assembly disposed therein, a sleeve disposed over the antenna array, wherein the sleeve includes at least one electrode assembly, the at least one electrode and the contact assembly adapted to provide a radially conductive path from an exterior of the well logging tool to the conductive mandrel and wherein the electrode assembly comprises a first conductor exposed to the exterior of the well logging tool and at least one second conductor conductively connected to the first conductor and exposed to an inner surface of the sleeve, wherein at least one of the first conductor or the second conductor being in sealed contact with the sleeve to prevent the passage of fluid through the sleeve.

Monitoring A Reservoir In Casing Drilling Operations Using A Modified Tubular
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US Patent:

7059428, Jun 13, 2006
Filed:

Jan 20, 2004
Appl. No.:

10/761045
Inventors:

Mark Frey - Sugar Land TX, US
David L. Smith - Sugar Land TX, US
Brian Clark - Sugar Land TX, US
Jan Smits - Sugar Land TX, US
Assignee:

Schlumberger Technology Corporation - Sugar Land TX
International Classification:

E21B 47/00
US Classification:

175 50, 7315203, 175 40, 175 57
Abstract:

Characteristics of a reservoir are monitored during a casing drilling operation using a casing drilling assembly that includes a drill bit for drilling a borehole through an earth formation. A casing tubular is coupled with the casing drilling assembly and includes at least one station having at least one slot in the casing tubular. An antenna or sensor, adapted for signal transmission and/or reception, is disposed within the casing tubular and positioned such that the antenna or sensor is aligned with the at least one slotted station. The antenna or sensor is activated during a casing drilling operation to transmit and/or receive a signal.

Integrated Logging Tool For Borehole
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US Patent:

7073378, Jul 11, 2006
Filed:

Aug 7, 2003
Appl. No.:

10/636297
Inventors:

Jan Wouter Smits - Sugar Land TX, US
Christian Stoller - Kingwood TX, US
Michael Evans - Missouri City TX, US
Patrick Fisseler - Missouri City TX, US
Robert Adolph - Pennington NJ, US
Assignee:

Schlumberger Technology Corporation - Sugar Land TX
International Classification:

G01N 23/00
US Classification:

7315214
Abstract:

An apparatus for measuring characteristics of earth formations surrounding a borehole, comprises a resistivity measurement device having a multiplicity of antennae spaced between each other in a longitudinal direction of the apparatus. A neutron measurement device of the apparatus comprises at least a neutron source and at least a neutron detector, each of the neutron detectors being at a distance from the neutron source in the longitudinal direction of the apparatus. The multiplicity of antennae are interleaved with the neutron measurement device in order to reduce a total length of the apparatus and in order to allow a determined area of the earth formation to be measured simultaneously using the neutron measurement device and the resistivity measurement device.

Insulated Sleeve With Conductive Electrodes To Reduce Borehole Effects For An Induction Tool
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US Patent:

7193420, Mar 20, 2007
Filed:

Jan 17, 2006
Appl. No.:

11/334198
Inventors:

Kuo Chiang Chen - Sugar Land TX, US
Robert C. Smith - Houston TX, US
David T. Oliver - Sugar Land TX, US
Gary A. Hazen - Houston TX, US
Dean M. Homan - Sugar Land TX, US
Jan W. Smits - Sugar Land TX, US
Assignee:

Schlumberger Technology Corporation - Sugar Land TX
International Classification:

G01V 3/02
US Classification:

324339, 324351
Abstract:

A well logging tool and method are disclosed comprising a conductive mandrel, an antenna array disposed around the conductive mandrel, wherein the antenna array comprises a plurality of antennas disposed on insulating supports and at least one contact spacer, the at least one contact spacer having at least one conductor channel having a contact assembly disposed therein, a sleeve disposed over the antenna array, wherein the sleeve includes at least one electrode assembly, the at least one electrode and the contact assembly adapted to provide a radially conductive path from an exterior of the well logging tool to the conductive mandrel and wherein the electrode assembly comprises a first conductor exposed to the exterior of the well logging tool and at least one second conductor conductively connected to the first conductor and exposed to an inner surface of the sleeve, wherein at least one of the first conductor or the second conductor being in sealed contact with the sleeve to prevent the passage of fluid through the sleeve.

Method For Characterizing A Subsurface Formation With A Logging Instrument Disposed In A Borehole Penetrating The Formation
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US Patent:

7202670, Apr 10, 2007
Filed:

Jun 24, 2004
Appl. No.:

10/710188
Inventors:

Dzevat Omeragic - Sugar Land TX, US
Qiming Li - Sugar Land TX, US
Lawrence Chou - Pearland TX, US
Libo Yang - Sugar Land TX, US
Chengbing Liu - Houston TX, US
Jan Smits - Sugar Land TX, US
Assignee:

Schlumberger Technology Corporation - Sugar Land TX
International Classification:

G01B 3/08
US Classification:

324338
Abstract:

A method is described for characterizing a subsurface formation with a logging instrument disposed in a borehole penetrating the formation. The logging instrument is equipped with at least a transmitter system and a receiver system. The method entails positioning the logging instrument within the borehole so that the transmitter system and receiver system are disposed in the vicinity of a formation boundary of interest and measuring the azimuthal orientation of the logging instrument. Electromagnetic energy is transmitted into the formation using the transmitter system and signals associated with the transmitted electromagnetic energy are measured using the receiver system. The method further entails determining the relative azimuth of the formation boundary, composing a symmetrized directional measurement using the measured signals and the determined relative boundary azimuth, and determining the relative dip of the formation boundary using the composed directional measurement.

Streamlining Data Transfer To/From Logging While Drilling Tools
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US Patent:

7230542, Jun 12, 2007
Filed:

May 23, 2002
Appl. No.:

10/154265
Inventors:

Jan Wouter Smits - Sugar Land TX, US
Anthony Collins - Houston TX, US
Assignee:

Schlumberger Technology Corporation - Sugar Land TX
International Classification:

G01V 3/00
US Classification:

3408539, 711115
Abstract:

The invention provides a more efficient way to transfer data to or from a logging tool during a drilling process. A memory module is provided for rapid insertion and retrieval from a logging while drilling tool between drilling runs. The memory module records and stores data collected during the drilling process. A process of the invention includes removing the memory module from the tool; loading a new memory module into the tool that contains the desired tool parameters for the next run. The retrieved memory module is then connected to an independent surface system to download the stored data.

Wikipedia References

Jan Smits

About:

Born:

1967

Work:

Company:

Maastricht University

Education:

Studied at:

Leiden University

Academic degree:

Professor

Specialty:

Director

Skills & Activities:

Jan Smits is a member of the [ http: www. iuscommune. eu Ius Commune Research School ]..

Isbn (Books And Publications)

Legal Aspects Of Implementing International Telecommunication Links: Institutions, Regulations And Instruments
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Author:

Jan Smits
ISBN #:

0792314328

Advances In Network And Distributed Systems Security: Ifip Tc11 Wg11.4 First Annual Working Conference On Network Security November 26-27, 2001, Leuven, Belgium
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Author:

Jan Smits
ISBN #:

0792375580

Digital Video Broadcasting: Technology, Standards And Regulations
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Author:

Jan Smits
ISBN #:

0890067430

Mobile Telecommunications: Standards, Regulations And Applications - Wireless Communications Engineering
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Author:

Jan Smits
ISBN #:

0890068062

European Integration And Law
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Author:

Jan Smits
ISBN #:

9050955681

Het Recht Uitgedaagd Door De Computer: Een Inleiding
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Author:

Jan Smits
ISBN #:

9060019806

The Need For A European Contract Law: Empirical And Legal Perspectives
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Author:

Jan Smits
ISBN #:

9076871353

Wikipedia

Jan Smits

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Jan M. Smits (born 1967) is a Dutch law professor. He is professor of European Private Law at Maastricht University and director of the Maastricht European ...