Clay Seals of Oil and Gas Deposits: 1st Edition (Hardback) book cover

Clay Seals of Oil and Gas Deposits

1st Edition

Edited by V.I. Osipov, V.N. Sokolov, V.V. Eremeev

CRC Press

296 pages

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Hardback: 9789058095831
pub: 2003-01-01
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Description

Provides comprehensive coverage of all aspects of clay seals, from the formation of deposits and an analysis of their composition and properties, to the physical relationships between these clay seals and the environments in which they are found. Looks at seven different types of clay seals from a number of sites, highlighting important properties and methods of analysis used to distinguish and classify clay seals.

The final part of the book deals with modelling the state and properties of clay seals occurring at various depths, showing variations in porosity and strength at different lithogenesis stages. Additionally, the authors consider the possibility of predicting screening properties of clay seals using computer programs.

Table of Contents

Contents; Introduction;

PART I FORMATION OF CLAY SEAL PROPERTIES: THEORETICAL FUNDAMENTALS

Chapter 1 Composition of Clay Sediments and Their Structure Formation in Sedimentogenesis

  • 1.1. Composition of clay sediments
  • 1.2. Structure of clay sediments
  • 1.3. The theory of structure formation in clay dispersions
  • 1.4. Structural bonds
  • 1.5. Formation of primary microstructures in clay sediments

Chapter 2 Lithogenesis of Clay Sediments

  • 2.1. General information
  • 2.2. The stages of lithogenesis
  • 2.3. Boundaries between the stages and substages of lithogenesis

Chapter 3 Formation of the Properties of Clay Seals in Lithogenesis

  • 3.1. Density and porosity
  • 3.2. Water content and consistence
  • 3.3. Permeability
  • 3.4. Physical-mechanical properties
  • 3.5. Rheological properties
  • 3.6. General regularities in the formation of clay properties in the process of lithogenesis

PART II CHARACTERISTIC OF THE FACIES TYPES OF CLAY SEALS

Chapter 4 Depositional Environments of Clay Seal Formation

  • 4.1. The cyclic structure of sedimentary basin sequences
  • 4.2. Source provinces
  • 4.3. Evolution of sedimentation basins
  • 4.4. Classification of clay seals according to their depositional environments and screening properties

Chapter 5 Facies Analysis of Clay Seals in Oil- and Gas-Bearing Basins

  • 5.1. The principal criteria for facies analysis
  • 5.2. Facies analysis of clay seals in sedimentary basins

Chapter 6 The Composition of the Facies Types of Clay Seals and Its Change with Depth

  • 6.1. The composition of the facies types of clay seals
  • 6.2. A comparative characteristic of the composition of clay seals of various facies types

Chapter 7 Structure and Properties of the Facies Types of Clay Seals

  • 7.1. The influence of depositional environments on the structure formation
  • 7.2. Porosity
  • 7.3. Microfracturing
  • 7.4. Permeability
  • 7.5. Destruction of clay seals of different facies types with depth

PART III MODELING OF THE CHANGE IN THE CLAY SEAL PROPERTIES IN LITHOGENESIS

Chapter 8 Physicochemical Models of Clay Rock Microstructures

  • 8.1. The concepts of the physicochemical mechanics of clay rocks as a basis for modeling
  • 8.2. Calculation of the number of contacts
  • 8.3. Strength of individual contacts between clay particles

Chapter 9 Development of a Mathematical Model for Estimating the Strength of Clay Seals

  • 9.1. Theoretical calculation of the change in the strength of individual contacts with depth
  • 9.2. Calculation of the change in the number of contacts in clay seals with depth
  • 9.3. Theoretical calculation of tensile and compressive strength of clay seals

Chapter 10 Comparison of Theoretical Calculation Results and Experimental Data on the Mechanical Strength of Clay Seals

  • 10.1. Experimental data base
  • 10.2. Comparison of theoretical and experimental data

References; Subject Index.

About the Editors

Osipov\, V.I.; Sokolov\, V.N.; Eremeev\, V.V.

Subject Categories

BISAC Subject Codes/Headings:
TEC009020
TECHNOLOGY & ENGINEERING / Civil / General