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Clay Seals of Oil and Gas Deposits - V.I. Osipov

Clay Seals of Oil and Gas Deposits

By: V.I. Osipov (Editor), V.N. Sokolov (Editor), V.V. Eremeev (Editor)

Hardcover Published: 1st January 2003
ISBN: 9789058095831
Number Of Pages: 296

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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.

Introductionp. VII
Formation of Clay Seal Properties: Theoretical Fundamentalsp. 1
Composition of Clay Sediments and Their Structure Formation in Sedimentogenesisp. 3
Composition of clay sedimentsp. 3
Structure of clay sedimentsp. 7
The theory of structure formation in clay dispersionsp. 17
Structural bondsp. 26
Formation of primary microstructures in clay sedimentsp. 30
Lithogenesis of Clay Sedimentsp. 37
General informationp. 37
The stages of lithogenesisp. 38
Boundaries between the stages and substages of lithogenesisp. 64
Formation of the Properties of Clay Seals in Lithogenesisp. 71
Density and porosityp. 71
Water content and consistencep. 83
Permeabilityp. 90
Physical-mechanical propertiesp. 97
Rheological propertiesp. 109
General regularities in the formation of clay properties in the process of lithogenesisp. 112
Characteristic of the Facies Types of Clay Sealsp. 119
Depositional Environments of Clay Seal Formationp. 121
The cyclic structure of sedimentary basin sequencesp. 121
Source provincesp. 123
Evolution of sedimentation basinsp. 125
Classification of clay seals according to their depositional environments and screening propertiesp. 131
Facies Analysis of Clay Seals in Oil- and Gas-Bearing Basinsp. 137
The principal criteria for facies analysisp. 137
Facies analysis of clay seals in sedimentary basinsp. 139
The Composition of the Facies Types of Clay Seals and Its Change with Depthp. 147
The composition of the facies types of clay sealsp. 147
A comparative characteristic of the composition of clay seals of various facies typesp. 158
Structure and Properties of the Facies Types of Clay Sealsp. 163
The influence of depositional environments on the structure formationp. 163
Porosityp. 172
Microfracturingp. 181
Permeabilityp. 188
Destruction of clay seals of different facies types with depthp. 190
Modeling of the Change in the Clay Seal Properties in Lithogenesisp. 195
Physicochemical Models of Clay Rock Microstructuresp. 197
The concepts of the physicochemical mechanics of clay rocks as a basis for modelingp. 197
Calculation of the number of contactsp. 198
Strength of individual contacts between clay particlesp. 204
Development of a Mathematical Model for Estimating the Strength of Clay Sealsp. 211
Theoretical calculation of the change in the strength of individual contacts with depthp. 211
Calculation of the change in the number of contacts in clay seals with depthp. 225
Theoretical calculation of tensile and compressive strength of clay sealsp. 229
Comparison of Theoretical Calculation Results and Experimental Data on the Mechanical Strength of Clay Sealsp. 239
Experimental data basep. 239
Comparison of theoretical and experimental datap. 239
Referencesp. 259
Subject Indexp. 275
Table of Contents provided by Rittenhouse. All Rights Reserved.

ISBN: 9789058095831
ISBN-10: 9058095835
Audience: Professional
Format: Hardcover
Language: English
Number Of Pages: 296
Published: 1st January 2003
Publisher: A A Balkema Publishers
Country of Publication: NL
Dimensions (cm): 24.13 x 17.15  x 1.91
Weight (kg): 0.7
Edition Number: 1

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