William F Flanagan

US Patent:

6822455, Nov 23, 2004

Filed:

Sep 9, 2002

Appl. No.:

10/237439

Inventors:

William D. Flanagan - Houston TX

Assignee:

Ultima Labs, Inc. - Houston TX

International Classification:

G01V 312

US Classification:

324338

Abstract:

The invention provides a system for determining geologic formation resistivity while drilling and a new method providing compensation for the vertical asymmetries of the tool response and the effects of borehole rugosity. The apparatus and method allows the construction of a tool body considerably shorter in length than previous devices and provides more radial depths of investigation for a given number of transmitter and receiver antennas when compared to previous devices. A method for calibrating data acquisition errors of the system is also described.

US Patent:

7183771, Feb 27, 2007

Filed:

Nov 3, 2004

Appl. No.:

10/980690

Inventors:

William D. Flanagan - Houston TX, US

Assignee:

Ultima Labs, Inc. - Houston TX

International Classification:

G01V 3/12

US Classification:

324338

Abstract:

A device and method for obtaining an electromagnetic propagation measurement of a subterranean geologic formation, with the formation being intersected by a borehole. The device comprises a transmitter for transmitting an electromagnetic signal, and a first and second receiver for receiving the transmitted signal. The device further comprises a circuit for injecting a calibration signal into the first receiver and the second receiver, and a processor for processing the uncalibrated receiver signal and the calibration signal to obtain electromagnetic propagation measurement that is free from errors introduced by the receiving elements of the system. The processor may include a receiver data acquisition circuit for correcting data acquisition errors related to the first receiver and the second receiver.

US Patent:

7411517, Aug 12, 2008

Filed:

Jun 23, 2005

Appl. No.:

11/159793

Inventors:

William D. Flanagan - Houston TX, US

Assignee:

Ultima Labs, Inc. - Houston TX

International Classification:

G01V 3/00

US Classification:

3408544, 3408546, 3408548, 175 40

Abstract:

A wireless data communication system for a down hole environment. The system includes a housing containing a sensor, positioned within a tubular, for collecting information and processing the information, a modulator for modulating the information from the sensor into an analog signal, and a sensor antenna electrically connected to the first modulator for generating a modulated electromagnetic wave. The system further includes a probe housing, concentrically disposed within the tubular, comprising a probe antenna for receiving the modulated electromagnetic wave and generating an output, and a demodulator for demodulating the electromagnetic wave received from the sensor to a digital record. A method of wirelessly communicating between a probe and a remote sensor is also disclosed.

US Patent:

20090021392, Jan 22, 2009

Filed:

Jul 31, 2008

Appl. No.:

12/221243

Inventors:

William D. Flanagan - Houston TX, US

International Classification:

G01V 3/00

US Classification:

3408546

Abstract:

A wireless data communication system for a down hole environment. The system includes a housing containing a sensor, positioned within a tubular, for collecting information and processing the information, a modulator for modulating the information from the sensor into an analog signal, and a sensor antenna electrically connected to the first modulator for generating a modulated electromagnetic wave. The system further includes a probe housing, concentrically disposed within the tubular, comprising a probe antenna for receiving the modulated electromagnetic wave and generating an output, and a demodulator for demodulating the electromagnetic wave received from the sensor to a digital record. A method of wirelessly communicating between a probe and a remote sensor is also disclosed.

US Patent:

48004960, Jan 24, 1989

Filed:

Sep 28, 1987

Appl. No.:

7/101616

Inventors:

Thomas D. Barber - Houston TX
William B. Vandermeer - Houston TX
William D. Flanagan - Houston TX

Assignee:

Schlumberger Technology Corporation - Houston TX

International Classification:

G01V 318

US Classification:

364422

Abstract:

A method for determining a sonde error characteristic of an induction tool is disclosed. The method includes the step of measuring an electrical characteristic which may be the real or quadrature component of conductivity, at two or more different heights above the earth. The sonde error characteristic is determined as a function of a predetermined relationship between the desired sonde error characteristic and the measurements of that characteristic at two or more different heights above the earth. The method may be performed with the tool disposed substantially parallel to the earth. Alternatively, the tool may be disposed substantially perpendicularly to the earth.