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Geochemical Methods of Prospecting and Exploration for Petroleum and Natural Gas
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eBook - ePub
Geochemical Methods of Prospecting and Exploration for Petroleum and Natural Gas
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Table of contents
- Cover
- Title
- Copyright
- Contents 1
- Introduction
- CHAPTER ONE
- PROPERTIES OF PETROLEUM
- The Physical State of Petroleum
- State of Knowledge on the Composition of Petroleum
- Elemental Composition
- Hydrocarbon Composition
- Acids
- Compounds of Sulfur and Nitrogen
- Tars and Asphaltenes
- Elements of the Ash
- Specific Gravity
- Optical Activity
- Physiological Activity
- Regularities in the Chemistry of Petroleum
- PHYSICAL AND CHEMICAL CONDITIONS IN PETROLEUM FORMATIONS
- Temperature
- Pressu re
- Motion of Subterranean Waters
- Physicochemical and Chemical Properties of Rocks and Waters
- GEOCHEMICAL PROCESSES IN PETROLEUM FORMATIONS
- Metamorphism of Petroleum
- Oxidation of Petroleum
- Consequences of the Oxidation of Petroleum by Sulfates
- Paragenesis of Petroleum and Sulfur. Sulfuring of Petroleum
- Physical Processes
- CAUSES OF PETROLEUM VARIABILITY
- Role of the Initial Composition
- Significance of Physical Processes
- Significance of Geochemical Transformations of Petroleum
- Conclusions
- Practical Importance of the Question
- GEOCHEMICAL PECULIARITIES OF THE GASES, WATERS, AND ROCKS OF PETROLEUM FORMATIONS
- Natural Gases
- Waters
- Change of Properties of Waters in Oil-Bearing Strata
- Organisms
- Rocks
- BIBLIOGRAPHY
- CHAPTER TWO Classification of Geochemical Prospecting Methods GEOCHEMICAL INDICES OF PETROLEUM
- CLASSIFICATION OF GEOCHEMICAL METHODS ACCORDING TO INDICES USED
- CLASSIFICATION OF GEOCHEMICAL METHODS BY OBJECTIVE AND BY ORGANIZATION
- Chapter THREE The Geochemistry of Gases INTRODUCTION
- Gaseous Minerals
- Gaseous Associations
- PROPERTIES OF GASES
- Determination of Gases
- TYPES OF GASES Gases in the Atmosphere
- Gases in the Hydrosphere
- Gases in the Lithosphere
- ORIGIN OF GASES AND THEIR GENETIC CLASSIFICATION
- Natural Gases of Purely Gaseous Formations
- Genesis of Purely Gaseous Formations
- Change in the Composition of Natural Gas Within a Formation
- Dissipation of Gas Accumulations
- BIBLIOGRAPHY
- CHAPTER FOUR Gas Surveys
- BRIEF HISTORY OF GAS SURVEYING
- THEORETICAL BASIS OF THE GAS SURVEY
- Migration of a Gas
- Physical Forms of Gas Movement Through Rocks
- Alteration of a Gas During the Process of Migration
- Composition of the Gas Detected in the Gas Survey
- VARIOUS TYPES OF GAS SURVEYS
- METHODS OF FIELD WORK Arrangement of Sampling Points
- Drilling Bore Holes
- Taking Gas Samples
- Seasonal Fluctuations of Gas Content
- Causes of Variations in Gas Concentrations
- GAS ANALYSIS
- Total Analysis of Natural Gas in the VTI Apparatus
- Analysis of Hydrocarbon Gases in the Sokolov Apparatus
- Analysis of Microcentrations of Hydrocarbon Gases in Stationary Mercury Apparatus
- Stationary Mercury Apparatus, Model No. 3
- Stationary Circulative Mercury Apparatus
- INTERPRETATION OF GAS SURVEY RESULTS
- Presentation of Survey Results
- Compilation of Maps
- Forms of Gas Anomalies
- Evaluation of the Survey Results
- BIBLIOGRAPHY
- CHAPTER FIVE Core-Gas Surveys INTRODUCTION
- Problems of the Method
- Origin and Development of the Method
- THEORETICAL BASIS OF THE CORE-GAS SURVEY
- METHODS OF FIELD WORK
- Coring Operations
- Effect of Storage Time on Cores
- Depth of Sampling
- Fluctuations in the Gas Content of Rock
- METHODS OF DEGASSING CORES
- Degassing at Elevated Temperatures
- Degassing under Vacuum at Elevated Temperatures
- Degassing by Disaggregation of the Rock under Vacuum
- Degassing in Boiling Water
- Gas Analysis
- INTERPRETATION OF CORE-GAS SURVEY RESULTS
- OTHER METHODS OF STUDYING THE GAS CONTENT OF CORES The āThermobitumenā Survey
- Change of Parameters of Monmorillonite as an Index of Hydrocarbon Migration
- BIBLIOGRAPHY
- CHAPTER SIX Oil and Gas Logging
- THEORETICAL BASIS OF OIL AND GAS LOGGING
- METHODS AND APPARATUS USED IN OIL AND GAS LOGGING
- Mud Logging
- Intermittent Degassing of Drilling Muds
- Continuous Degassing of Drilling Muds
- Analysis of Combustible Gases Recovered From Drilling Muds
- Oil and Gas Logs Based on Analyses of Cuttings and Cores
- Method of Luminescence Logging with Drilling Muds and Cuttings
- AUTOMATIC AND SEMIAUTOMATIC LOGGING EQUIPMENT
- METHOD OF CALCULATING LAG OF THE DRILLING MUD
- FACTORS AFFECTING RESULTS OF OIL AND GAS LOGGING
- Gas-Oil Ratio and Crude Oil Composition
- Formation Pressures
- Influence of Water-Bearing Levels
- Method of Mud Degasification
- Drilling Procedure
- Clays Used in Preparing Drilling Mud
- Addition of Crude Oil and Petroleum Products to Drilling Mud
- Effect of Higher Productive Zones on Penetration of Lower Intervals
- Change in Physical Properties of Drilling Mud
- INTERPRETATION OF OIL AND GAS LOGS Interpreting Manually Recorded Data
- Interpreting Oil and Gas Logs of Single and Multilayer Formations
- Distinguishing Between Oil and Gas Zones
- Interpreting Automatically Recorded Data
- Data Necessary in Oil and Gas Logging
- Interpreting Mechanical Logs
- Interpreting Luminescence Logs
- Characteristics of Well Logs From Various Types of Rocks
- Correlation of Oil and Gas Logs
- BIBLIOGRAPHY
- CHAPTER SEVEN Bitumen Methods
- BASIC INFORMATION ON BITUMINOLOGY
- Definition of the āBitumenā Concept
- Classification of Bitumens
- Characteristic Properties of Bitumens
- Fractional Composition of Bitumens
- Bitumens Dispersed in Rocks
- Bound Bitumens
- METHODS OF QUANTITATIVE ANALYSIS
- Determination of Organic Carbon
- Determination of Nitrogen
- Determination of Bitumens by the Weight Method
- Determination of Bitumens by the Colorimetric Method
- APPLICATION OF BITUMEN METHODS
- Prospecting for Oil-Bearing Strata
- Bitumen Area Surveys
- BIBLIOGRAPHY
- CHAPTER EIGHT Bitumen-Luminescence Methods
- BASIC INFORMATION ON LUMINESCENCE OF BITUMENS
- Luminescence, its Main Forms and Some Properties
- Principles of Luminescence Analysis
- Luminescence of Bitumens
- Luminescence of Bitumen Fractions
- LUMINESCENCE ANALYSIS OF BITUMENS
- Equipment
- Drop Analysis
- Test Tube Analysis
- Capillary Analysis
- Adsorption (chromatographic) Analysis
- Quantitative Fractional Analysis
- Luminescence-Extraction Analysis
- Microscopic Luminescence Determinations
- APPLICATION OF BITUMEN-LUMINESCENCE METHODS Route Surveys
- Area Surveys
- Study of the Cores from Deep Wells
- Luminescence Logging
- Correlation of Well Sections
- BIBLIOGRAPHY
- CHAPTER NINE Hydrochemical Methods
- DIRECT HYDROCHEMICAL INDICATORS OF PETROLEUM
- Dissolved Bitumens (Soaps)
- Implications of Presence or Absence of Dissolved Bitumens
- Phenols and their Derivatives
- Iodine
- Ammonia
- INDIRECT HYDROCHEMICAL INDICATORS OF PETROLEUM
- Hydrosulfides and Other Reduced Compounds of Sulfur
- Absence of Sulfates
- Soda (Alkalinity)
- Calcium Chloride
- Bromine
- General Characteristics of the Salinity of Brines
- Use of Combined Hydrochemical Indicators
- Consideration of Hydrogeological Data
- WATER ANALYSIS (BRIEF TREATMENT)
- Laboratory Determination of Fundamental Ions
- Determination of Dissolved Bitumens
- Determination of Iodine
- Determination of Ammonia
- Determination of Hydrosulfides and Other Reduced Compounds of Sulfur
- Determination of Bromine
- Field Laboratories
- Determination of pH of Water
- APPLICATION OF HYDROCHEMICAL METHODS
- Route Surveys
- Hydrochemical Prospecting
- Hydrochemical Investigations in Exploration Work
- Hydrochemical Investigations in Production Work
- HYDROCHEMICAL INDICATORS OF STRUCTURE
- Theoretical Concepts of Structure Surveys
- Organization and Methodology of Structure Surveys
- Indicators Used and Their Interpretation
- Correlation of Results with Stratigraphic Data
- BIBLIOGRAPHY
- CHAPTER TEN Water-Gas Surveys BASIC INFORMATION ON WATER-GAS SURVEYS
- History of the Method
- Purpose of the Water-Gas Survey
- METHODS AND APPARATUS USED IN WATER-GAS SURVEYS Methods of Field Work
- Sampling Waters for Degasification
- Recovery of Gas from Water
- Gas Analysis
- WATER-GAS SURVEY RESULTS AND THEIR INTERPRETATION Presentation of Results
- Oil and Gas Indicators
- Interpretation of Water-Gas Survey Data
- BIBLIOGRAPHY
- CHAPTER ELEVEN Soil-Salt Methods
- VARIOUS TYPES OF SOIL-SALT METHODS The Chloride Method
- The Iodine Method
- The Gypsum Method
- The Carbonate-Siallite Method
- APPLICATION OF SOIL-SALT METHODS
- RADIOACTIVITY SURVEYS
- BIBLIOGRAPHY
- CHAPTER TWELVE The Oxidation-Reduction Potential Method
- APPLICATION OF THE METHOD
- BIBLIOGRAPHY
- CHAPTER THIRTEEN Microbiological Methods
- THEORETICAL BASIS OF THE MICROBIOLOGICAL METHOD
- General Information on Microorganisms
- Role of Microorganisms in the Formation of Gases
- INDICATOR AND CONTROL MICROORGANISMS IN PROSPECTING FOR OIL AND GAS
- Sulfate-Reducing Bacteria
- Hydrogen-Oxidizing Bacteria
- Methane-Producing Bacteria
- Bacteria which Decompose Cellulose
- Bacteria which Oxidize Gaseous and Vaporized Hydrocarbons
- Conditions Limiting the Propagation and Use of Indicator Microorganisms
- MAIN VARIETIES OF THE MICROBIOLOGICAL METHOD
- The Soil Survey
- The Water Survey
- Biologging
- The Bacterial Gas-Output Survey and Other Analytical Methods
- MICROBIOLOGICAL RESULTS AND THEIR INTERPRETATION
- Treatment of Factual Data
- Evaluation of Bacterial Anomalies
- Examples of the Interpretation of Microbiological Data
- GEOBOTANICAL INDICATORS
- BIBLIOGRAPHY
- CHAPTER FOURTEEN The Role of Geochemical Methods in Petroleum Prospecting
- APPENDIX