David R Mariani

Deceased

from Nashville, TN

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United States

Induction Well Logging Apparatus With Transformer Coupled Phase Sensitive Detector
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US Patent:

48578525, Aug 15, 1989
Filed:

Apr 27, 1988
Appl. No.:

7/186986
Inventors:

Robert L. Kleinberg - Ridgefield CT
Brian Clark - Missouri City TX
Weng C. Chew - Champaign IL
David Mariani - Darien CT
Assignee:

Schlumberger Technology Corp. - New York NY
International Classification:

G01V 318
G01V 328
US Classification:

324339
Abstract:

A well logging apparatus is disclosed which employs slot antennas having a plurality of conductive probes traversing the slot. Also disclosed are a logging apparatus having electrically isolated antenna probes and a logging apparatus with an improved means for generating and applying a reference signal used in phase detection.

Method And Apparatus For Electromagnetic Logging With Two Dimensional Antenna Array
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US Patent:

54345073, Jul 18, 1995
Filed:

May 27, 1992
Appl. No.:

7/890049
Inventors:

Jeffrey A. Beren - Westport CT
Tarek M. Habashy - Danbury CT
Yupai P. Hsu - Bethel CT
David R. Mariani - Darien CT
Kambiz A. Safinya - Jakarta Selatan, ID
M. Reza Taherian - Ridgefield CT
Assignee:

Schlumberger Technology Corporation - New York NY
International Classification:

G01V 330
US Classification:

324338
Abstract:

A two-dimensional array of slot antennas which can provide two-dimensional quantitative dielectric and conductivity images of formations in the region surrounding an earth borehole. The antennas are mounted in a wall-engaging member of a logging device that is moveable through the borehole. Selected ones of the antennas are energized at given times to transmit electromagnetic energy into the formations, the electromagnetic energy being received at other antennas for processing to obtain formation properties.

Well Logging Apparatus For Determining Dip, Azimuth, And Invaded Zone Conductivity
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US Patent:

47663847, Aug 23, 1988
Filed:

Jun 20, 1986
Appl. No.:

6/876514
Inventors:

Robert L. Kleinberg - Ridgefield CT
Brian Clark - Missouri City TX
Weng C. Chew - Champaign IL
David Mariani - Darien CT
Assignee:

Schlumberger Technology Corp. - New York NY
International Classification:

G01V 318
G01V 328
H01Q 1310
US Classification:

324339
Abstract:

A well logging apparatus is disclosed which employs slot antennas having a plurality of conductive probes traversing the slot. Also disclosed are a logging apparatus having electrically isolated antenna probes and a logging apparatus with an improved circuit for generating and applying a reference signal used in phase detection.