Lecture items

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Lecture Lecture items items - Resistivity Logs * Definition. * Types * Units & Presentation. * Theories of measurement. * Factors affecting on log readings. * Applications.

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Lecture items. Resistivity Logs * Definition. * Types * Units & Presentation. * Theories of measurement. * Factors affecting on log readings. * Applications. Resistivity Logs - Conventional resistivity logs. - Focused resistivity Logs. - PowerPoint PPT Presentation

Transcript of Lecture items

Page 1: Lecture items

Lecture itemsLecture items

- Resistivity Logs

* Definition.

* Types

* Units & Presentation.

* Theories of measurement.

* Factors affecting on log readings.

* Applications.

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Resistivity Logs - Conventional resistivity logs.

- Focused resistivity Logs.

- Microspherically focused logs.

- Induction logs.

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Resistivity logs “Definition”

Such logs measure and record either resistivity or conductivity of the drilled sequence versus depth.

Units & Presentations

Units of measurements are Ohm.m or m.mhos/mPresentations: Tracks 2 &or 3 on logarithmic scale

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Conventional resistivity logsConventional resistivity logs

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Normal and Lateral R. LNormal and Lateral R. L..

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Short & Long Normal and Lateral RLShort & Long Normal and Lateral RL..

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Theory Theory ofof

focusing focusing systemsystem

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Spherically focused logsSpherically focused logsLL7, LL3 and SFLLL7, LL3 and SFL

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Dual Latero- Dual Latero- logs logs

LLS & LLDLLS & LLD

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LLS & LLD logsLLS & LLD logs

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Hydrocarbon Hydrocarbon effects on effects on resistivity resistivity

logslogs