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Sediment Compaction and Applications in Petroleum Geoscience

  • Book
  • © 2020

Overview

Authors:
  1. Troyee Dasgupta

    1. Department of Earth Sciences, Indian Institute of Technology Bombay, Mumbai, India

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  2. Soumyajit Mukherjee

    1. Department of Earth Sciences, Indian Institute of Technology Bombay, Mumbai, India

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    You can also search for this author in PubMed   Google Scholar

  • Explains compaction trend models
  • Shows the global distribution of overpressure zones in different tectonic regimes
  • Enriches understanding of exhumation history analysis from Compaction Trend
  • Provides complete instructions for log usage during Compaction Trend analysis

Part of the book series: Advances in Oil and Gas Exploration & Production (AOGEP)

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Table of contents (8 chapters)

  1. Front Matter

    Pages i-xxiii
    Download chapter PDF

  2. Compaction of Sediments and Different Compaction Models

    • Troyee Dasgupta, Soumyajit Mukherjee
    Pages 1-8

  3. Porosity in Carbonates

    • Troyee Dasgupta, Soumyajit Mukherjee
    Pages 9-18

  4. Pore Pressure Determination Methods

    • Troyee Dasgupta, Soumyajit Mukherjee
    Pages 19-30

  5. Detection of Abnormal Pressures from Well Logs

    • Troyee Dasgupta, Soumyajit Mukherjee
    Pages 31-49

  6. Global Overpressure Scenario

    • Troyee Dasgupta, Soumyajit Mukherjee
    Pages 51-81

  7. Investigation of Erosion Using Compaction Trend Analysis on Sonic Data

    • Troyee Dasgupta, Soumyajit Mukherjee
    Pages 83-90

  8. Pore Pressure in Different Settings

    • Troyee Dasgupta, Soumyajit Mukherjee
    Pages 91-99

  9. Correction to: Detection of Abnormal Pressures from Well Logs

    • Troyee Dasgupta, Soumyajit Mukherjee
    Pages C1-C1
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Keywords

About this book

This book discusses how sediments compact with depth and applications of the compaction trends. Porosity reduction in sediment conveniently indicates the degree of sediments compacted after deposition. Published empirical curves- the compaction curves- are depth-wise porosity variation through which change in pore spaces from sediment surface to deeper depths e.g. up to 6 km can be delineated. Porosity is derived from well logs. Compaction curves, referred to as the Normal Porosity Profile of shales, sandstones and shale bearing sandstones of different models are reviewed along with the different mechanical and chemical compaction processes. These compaction models reveals how porosity reduces depth-wise and the probable reason for anomalous zones. Deviation from these normal compaction trends may indicate abnormal pressure scenarios: either over- or under pressure. We highlight global examples of abnormal pressure scenarios along with the different primary- and secondary mechanisms. Well logs and cores being the direct measurements of porosity, well log is the only cost-effective way to determine porosity of subsurface rocks. Certain well logs can detect overpressure and the preference of one log above the other helps reduce the uncertainty. Apart from delineation of under-compacted zones by comparing the modeled- with the actual compaction, porosity data can also estimate erosion.

Authors and Affiliations

  • Department of Earth Sciences, Indian Institute of Technology Bombay, Mumbai, India

    Troyee Dasgupta, Soumyajit Mukherjee

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