Foreword Ⅰ Foreword Ⅱ Preface CHAPTER 1 Large Gas Fields andTheir Significance in the Natural Gas Industry 1.Large Gas Fields and Their Important Roles 1.1 Classification Criteria of Large Gas Fields 1.2 Large Gas Field——An Important Foundation for a Great Gas—Producing Country 2.Geological and Geochemical Characteristics of Large Gas Fields in China 2.1 Geochemical Characteristics 2.2 Geological Characteristics References CHAPTER 2 Large Coal—Derived Gas Fields and Their Gas Sources in the Ordos Basin 1.Overview of Natural Gas Geology 1.1 Tectonic Evolution and Sedimentary Formation 1.2 Gas Source Rock 1.3 Reservoirs 1.4 Caprock 2.Sulige Gas Field 2.1 Introduction 2.2 Geological Settings 2.3 Geochemical Characteristics of Natural Gas 2.4 Origin and Source of Natural Gas 3.Yulin Gas Field 3.1 Introduction 3.2 Geological Settings 3.3 Geochemical Characteristics of Natural Gas 3.4 Origin and Source of Natural Gas 4.Wushenqi Gas Field 4.1 Introduction 4.2 Geological Settings 4.3 Geochemical Characteristics of Natural Gas 4.4 Origin and Source of Natural Gas 5.Zizhou Gas Field 5.1 Introduction 5.2 Geological Settings 5.3 Geochemical Characteristics of Natural Gas 5.4 Origin and Source of Natural Gas 6.Mizhi Gas Field 6.1 Introduction 6.2 Geological Settings 6.3 Geochemical Characteristics of Natural Gas 6.4 Origin and Source of Natural Gas 7.Shemnu Gas Field 7.1 Introduction 7.2 Geological Settings 7.3 Geochemical Characteristics of Natural Gas 7.4 Origin and Source of Natural Gas 8.Daniudi Gas Field 8.1 Introduction 8.2 Geological Settings 8.3 Geochemical Characteristics of Natural Gas 8.4 Origin and Source of Natural Gas 9.Jingbian Gas Field 9.1 Introduction 9.2 Geological Settings 9.3 Geochemical Characteristics of Natural Gas 9.4 Origin and Source of Natural Gas 10.Gas Accumulation Stages 10.1 Upper Paleozoic Gas Reservoirs 10.2 Lower Paleozoic Gas Reservoirs References CHAPTER 3 Large Coal—Derived Gas Fields and Their Gas Sources in the Sichuan Basin 1.Overview of Natural Gas Geology of the Xujiahe Formation in the Sichuan Basin 1.1 Geology 1.2 Source Rock 1.3 Reservoir 1.4 Reservoir—Caprock Assemblage 1.5 Natural Gas Distribution 2.Guang'an Gas Field 2.1 Introduction 2.2 Major Geological Characteristics 2.3 Geochemical Characteristics of Oil and Gas 2.4 Origin and Source of Natural Gas 2.5 Gas Accumulation Stages 3.Hechuan Gas Field 3.1 Introduction 3.2 Major Geological Characteristics 3.3 Geochemical Characteristics of Oil and Gas 3.4 Origin and Source of Natural Gas 3.5 Gas Accumulation Stages 4.Anyue Gas Field 4.1 Introduction 4.2 Major Geological Characteristics 4.3 Geochemical Characteristics of Oil and Gas 4.4 Origin and Source of Natural Gas 4.5 Gas Accumulation Stages 5.Bajiaochang Gas Field 5.1 Introduction 5.2 Major Geological Characteristics 5.3 Geochemical Characteristics of Natural Gas 5.4 Origin and Source of Natural Gas 5.5 Gas Accumulation Stages 6.Xinchang Gas Field 6.1 Introduction 6.2 Major Geological Characteristics 6.3 Geochemical Characteristics of Natural Gas 6.4 Origin and Source of Natural Gas 6.5 Gas Accumulation Stages 7.Luodai Gas Field 7.1 Introduction 7.2 Major Geological Characteristics 7.3 Characteristics of Natural Gas 7.4 Origin and Source of Natural Gas 7.5 Gas Accumulation Stages 8.Qiongxi Gas Field 8.1 Introduction 8.2 Major Geological Characteristics 8.3 Geochemical Characteristics of Natural Gas 8.4 Origin and Source of Natural Gas 8.5 Gas Accumulation Stages 9.Yuanba Gas Field 9.1 Introduction 9.2 Major Geological Characteristics 9.3 Geochemical Characteristics of Natural Gas 9.4 Origin and Source of Natural Gas References CHAPTER 4 Large Coal—Derived Gas Fields and Their Gas Sources in the Tarim Basin 1.Overview of Natural Gas Geology in Kuqa Depression 1.1 Geology 1.2 Gas Source Rock 1.3 Reservoir 1.4 Caprock 1.5 Natural Gas Distribution 2.Kela2 Gas Field 2.1 Introduction 2.2 Major Geological Characteristics 2.3 Geochemical Characteristics of Natural Gas 2.4 Origin and Source of Natural Gas 2.5 Gas Accumulation Stages 3.Dabei Gas Field 3.1 Introduction 3.2 Major Geological Characteristics 3.3 Origin and Source of Hydrocarbon 3.4 Gas Accumulation Stages 4.Di'na2 Condensate Gas Field 4.1 Introduction 4.2 Major Geological Characteristics 4.3 Geochemical Characteristics of Oil and Gas 4.4 Origin and Source of Hydrocarbon 4.5 Gas Accumulation Stages 5.Yingmai7 Condensate Gas Field 5.1 Introduction 5.2 Major Geological Characteristics 5.3 Geochemical Characteristics of Oil and Gas 5.4 Origin and Source of Natural Gas 5.5 Hydrocarbon Accumulation Stages 6.Kokyar Condensate Gas Field 6.1 Introduction 6.2 Major Geological Characteristics 6.3 Geochemical Characteristics of Natural Gas 6.4 Origin and Source of Natural Gas 6.5 Geochemical Characteristics and Source of Condensate Oil（Light Oil） 6.6 Hydrocarbon Accumulation Stages References CHAPTER 5 Large Coal—Derived Gas Fields and Their Gas Sources in the Junggar Basin …… CHAPTER 6 Large Coal—Derived Gas Fields and Their Gas Sources in the Songliao Basin CHAPTER 7 Coal—Derived Gas Fields and the Gas Sources of Offshore China INDEX
