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Ralf Heidler

Schlumberger

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Publication

Featured researches published by Ralf Heidler.

Archive | 1999

Apparatus and method for determining a drilling mode to optimize formation evaluation measurements

Steven F. Crary; Ralf Heidler; Cengiz Esmersoy; Martin E. Poitzsch

Archive | 1998

Nuclear magnetic resonance logging with azimuthal resolution using gradient coils

Krishnamurthy Ganesan; Steven F. Crary; Ralf Heidler; Bruno Luong; Peter Speier

Archive | 1999

Apparatus and method for obtaining a nuclear magnetic resonance measurement while drilling

Martin E. Poitzsch; Steven F. Crary; Krishnamurthy Ganesan; Ralf Heidler; Bruno Luong; Peter Speier

Archive | 1998

Apparatus and method for generating a pulse sequence

Peter Speier; Ralf Heidler

Archive | 1998

Apparatus and method for computing a distribution of spin-spin relaxation times

Ralf Heidler; Roger A Dworak; Bruno Luong; Martin E. Poitzsch

Archive | 2002

Method and apparatus utilizing NMR measurements to gather information on a property of the earth formation surrounding a wellbore

Charles Woodburn; Ralf Heidler

Archive | 2007

Method for Analyzing Data Having Shared and Distinct Properties

Nicholas J. Heaton; Jack Aldan La Vigne; Ralf Heidler; Henry N. Bachman

Archive | 2005

Method for reducing ringing in NMR measurements by combining NMR signals having a spin echo and spurious signal component

Ralf Heidler

SPE Annual Technical Conference and Exhibition | 2002

Field Testing of a New Nuclear Magnetic Resonance Logging-While-Drilling Tool

Jan Morley; Ralf Heidler; Jack Horkowitz; Bruno Luong; Charles Woodburn; Martin E. Poitzsch; Tim Borbas; Brett Wendt

SPE Annual Technical Conference and Exhibition | 2007

Porosity Determination From NMR Log Data: The Effects of Acquisition Parameters, Noise, and Inversion

Henry N. Bachman; Steven F. Crary; Ralf Heidler; Jack Aldan La Vigne; Ridvan Akkurt

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Collaboration

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Martin E. Poitzsch

Schlumberger

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Steven F. Crary

Schlumberger

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Peter Speier

Schlumberger

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Krishnamurthy Ganesan

Schlumberger

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Bruno Luong

Schlumberger Oilfield Services

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Cengiz Esmersoy

Schlumberger

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Bruno Luong

Schlumberger Oilfield Services

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Henry N. Bachman

Schlumberger

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Jack Aldan La Vigne

Schlumberger

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Roger A Dworak

Schlumberger

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