At the beginning of 1970， well-known French geochemist B. P.Tissot et al.had synthesized and summed up the scientific results of predecessors. He therefore proposed a theoretical model of hydrocarbon generation by the late thermal degradation of kerogen， revealed generation， evaluation and distribution regularities for conventional crude oil and natural gas. The model established by Tissot has been internationally accepted in petroleum geological circles， fruitfully used to direct the explorative practice of conventional petroleum in the world， and become a geo-logical basis to establish petroleum evaluation methods. Early in the 1980s， Chinese petroleum geological circles adopted Tissot’s model and successfully accomplished the first national petroleum resources assessment. Based on this theoretical model， after burial depth of kercgen in source rock is up to the hydrocarbon-generating threshold?。?usually indicated by a vitrinite reflectance Ro value of 0. 5 ％ ） ，hydrocarbon starts to be generated. While entering oil peak （corresponding Ro value is around 0.8-1.0% ） ，a large amount of petroleum would be formed. Howev-er， it is commonly believed that if do not enter oil peak， source rocks would only generate limited crude oil. Ones not reaching the threshold would be referred to immature source rocks or non-source rocks. Meanwhile， petroleum geochemists have also establish a series of molecular indicators for determining maturity of crude oils and extractable organic matter （EOM） in source rocks. In most cases， the above concept seems to be feasible， especially for petroleum exploration in marine strata. Therefore， explorers do not take immature source rock contribution into account， and ignore the possibility to search for petroleum resources in the shallow strata around the threshold depth or in shallow basins for a considerable period.
作者簡(jiǎn)介
暫缺《低熟油氣形成機(jī)理與分布（英文版）》作者簡(jiǎn)介
圖書(shū)目錄
Chapter 1 Occurrence of Immature Hydrocarbon Resources 1.1 Known Immature Hydrocarbon Occurrence Outside China 1.2 0ccurrence and Status of Immature Hydrocarbon Resources in China Chapter 2 Characteristics of Macerals in Immature Source Rocks 2.1 Chemical Fundamentals of Hydrocarbon Generation from Macerals 2.2 Petrographic Characteristics of Macerals 2.3 Maceral Composition of Immature Source Rocks 2.4 Analysis of Perhydrous Macerals Forming Immature Hydrocarbons Chapter 3 Extractable Organic Matter （EOM） Analysis of Immature Source Rocks 3.1 Gross Composition of EOM 3.2 Saturated Fraction Composition 3.3 Aromatic Fraction Compositio 3.4 Total Hydrocarbon Fraction Composition and Source Input Analysis 3.5 Non-Hydrocarbon Fraction Composition 3.6 Stable Carbon Isotopic Composition in EOMs Chapter 4 Type and Abundance of Organic Matter in Immature Source Rocks 4.1 Type of Organic Matter 4.2 Abundance of Organic Matter 4.3 Criteria for Immature Source Rock Evaluation Chapter 5 Thermal Evolution of Organic Matter and Stages of Hydrocarbons Generation for 5.1 0ptical Indicators for Organic Evolution 5.2 Chemical Indicators for Organic Evolution 5.3 Stages of Organic Evolution Chapter 6 Compaction of Immature Source Rocks and Expulsion and Migration of Immature Hydrocarbons 6.1 Compaction Features 6.2 Dynamic and Direction of Primary Migration of Immature Hydrocarbons 6.3 Analyses of Burial History and Hydrocarbon Expulsion Phase 6.4 Approach to Primary Migration Models of Immature Hydrocarbons Chapter 7 Physical-Chemical Properties and Identification of Immature Hydrocarbons 7.1 Immature Gas and Its Physical-Chemical Properties 7.2 Physical Properties of Immature Oils 7.3 Chemical Compositions of Immature Oils 7.4 Identification and Genetic Types of Immature Oils Chapter 8 Geologjcal and Geochemical Regularities of Immature Hydrocarbon Generation 8.1 Basic Characteristics of Petroleum Geology 8.2 Analysis of Source Material for Hydrocarbon Generation 8.3 Geochemical Mechanism of Early Hydrocarbon Generation Chapter 9 Early Genetic Mechanisms of Hydrocarbons from Some Specific Perhydrous Macerals in Coal-bearing Strata 9.1 Early Genetic Mechanism of Hydrocarbon from Suberinite-A Case Study of Turpan Basin 9.2 Early Genetic Mechanism of Hydrocarbons from Resinite-A Case Study of Xihu Sag Chapter 10 Early Genetic Mecharusm of Hydrocarbons from Bacteria-reworked Terrestrial Organic Matter-Case Studies of Banqiao Sag and Jinggu Basin 10.1 Geological Setting 10.2 Analysis of Source Material for Hydrocarbon Generation 10.4 The Stages of Organic Evolution 10.5 Mechanism and Model of Hydrocarbon Generation Chapter 11 Early Genetic Me chanism of Hydrocarbons from Biolipids-A Case Study of Subei Basin 11.2 Analysis of Source Material for Hydrocarbon Generation 11.4 The Stages of Organic Evolution 11.5 Mechanism and Model of Hydrocarbon Generation Chapter 12 Early Genetic Mechanism of Hydrocarbons from Sulfur-rich Macromolecules- Case Studies of Denan Subsag and Jianghan Basin 12.1 Geological Setting 12.2 Analysis of Source Material for Hydrocarbon Generation 12.4 The Stages of Organic Evolution 12.5 Mechanism and Model of Hydrocarbon Generation References Plate and Explanatory Notes
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