Abstract: A logging tool electronics system is disclosed with noise minimization features and pulse compression signal processing techniques to improve the signal-to-noise ratio of array induction logging tools. The borehole is radiated with a magnetic field produced by a configurable multi-frequency and/or multi-amplitude sine wave signal stimulus section driving a fully differential single transmitter coil. Received signals from multiple mutually balanced fully differential receiver arrays are processed by receiver signal chains using adaptive algorithms under firmware control. The received signals are used to determine the conductivity and resistivity of the formation surrounding the borehole.
Type:
Grant
Filed:
September 23, 2014
Date of Patent:
August 1, 2017
Assignee:
PICO Technologies LLC
Inventors:
Gerald P. Miles, Cesar A. Sarria, Jairo A. Mena, Mostafa M. Ebeid, Tarek AbdelAziz
Abstract: A logging tool electronics system is disclosed (FIG. 1) with noise minimization features and pulse compression signal processing techniques to improve the signal-to-noise ratio of array induction logging tools. The borehole is radiated with a magnetic field produced by a configurable multi-frequency sine wave signal stimulus section driving a fully differential single transmitter coil. Received signals from multiple mutually balanced fully differential receiver arrays are processed by receiver signal chains using adaptive algorithms under firmware control. The received signals are used to determine the conductivity and resistivity of the formation surrounding the borehole.
Type:
Grant
Filed:
July 11, 2012
Date of Patent:
October 7, 2014
Assignee:
Pico Technologies LLC
Inventors:
Gerald P. Miles, Cesar A. Sarria, Jairo A. Mena, Mostafa M. Ebeid
Abstract: A logging tool electronics system is disclosed (FIG. 1) with noise minimization features and pulse compression signal processing techniques to improve the signal-to-noise ratio of array induction logging tools. The borehole is radiated with a magnetic field produced by a configurable multi-frequency sine wave signal stimulus section driving a fully differential single transmitter coil. Received signals from multiple mutually balanced fully differential receiver arrays are processed by receiver signal chains using adaptive algorithms under firmware control. The received signals are used to determine the conductivity and resistivity of the formation surrounding the borehole.
Type:
Application
Filed:
July 11, 2012
Publication date:
January 16, 2014
Applicant:
PICO TECHNOLOGIES LLC
Inventors:
Gerald P. Miles, Cesar A. Sarria, Jairo A. Mena, Mostafa M. Ebeid