作者：龚建明等
页数：172
出版社：科学出版社
出版日期：2023
ISBN：9787030761958
电子书格式：pdf/epub/txt
内容简介
本书主要介绍西北印度洋的区域地质概况及马克兰增生楔天然气水合物的调查研究历史、野外资料采集，包括地震测线和地球化学站位的布设以及地震资料和地球化学样品采集的方法；同时还阐述了天然气水合物的地震资料处理及其处理效果、地震资料解释成果、地球化学样品的测试与研究结果，如断裂活动特征、与水合物有关的地球物理特征及平面展布、低角度俯冲区构造样式-流体活动-地球物理异常-水合物藏空间分布之间的耦合关系；最后介绍低角度俯冲区”二层楼结构”的天然气水合物成藏模式及其相关成果。
目录
Foreword I
Foreword Ⅱ
Preface
Chapter 1 Regional Geology and Preliminary Results
1.1 Regional Geology
1.Tectonic evolution
2.Regional sedimentary evolution
1.2 History of Makran Gas Hydrate Research
1.Pakistani sea area
2.Iranian waters
1.3 Previous Research Results
1.Research results from other countries
2.Research results of Qingdao Institute of Marine Geology
Chapter 2 Offshore Data Acquisition in the Northwest Indian Ocean
2.1 Purpose of the Survey
2.2 Research Vessels and Line Layout
1.Research vessels and equipments
2.Layout of seismic lines and stations
2.3 Seismic Acquisition Technical Requirements
2.4 Technical Requirements for Geochemical Sample Collection
1.Columnar sample
2.Pore water
3.CTD
Chapter 3 Gas Hydrate Seismic Data Processing
3.1 Analysis of Raw Seismic Data
1.Low frequency background noise
2.Trace gaps
3.Cable noise
4.Multiple analysis
5.Spectrum analysis of original data
6.Summary of original data analysis
3.2 Seismic Data Processing Challenges and Processing Ideas
1.Processing challenges
2.Processing ideas
3.3 Key Technical Measurements
1.Cable noise attenuation affected by external forces
2.Noise attenuation from endogenous cables
3.Blank trace interpolation
4.Random noise attenuation
5.Multiple suppression
6.Velocity selection
7.Time migration
3.4 Seismic Data Processing Flow
3.5 Analysis of Processing Results
1.Significant interference and multiple suppression
2.High signal-to-noise ratio
3.High resolution
4.Clear characteristics of the effective wave group
5.Good closure condition of the survey line
3.6 Presentation of Result Profiles
Foreword Ⅱ
Preface
Chapter 1 Regional Geology and Preliminary Results
1.1 Regional Geology
1.Tectonic evolution
2.Regional sedimentary evolution
1.2 History of Makran Gas Hydrate Research
1.Pakistani sea area
2.Iranian waters
1.3 Previous Research Results
1.Research results from other countries
2.Research results of Qingdao Institute of Marine Geology
Chapter 2 Offshore Data Acquisition in the Northwest Indian Ocean
2.1 Purpose of the Survey
2.2 Research Vessels and Line Layout
1.Research vessels and equipments
2.Layout of seismic lines and stations
2.3 Seismic Acquisition Technical Requirements
2.4 Technical Requirements for Geochemical Sample Collection
1.Columnar sample
2.Pore water
3.CTD
Chapter 3 Gas Hydrate Seismic Data Processing
3.1 Analysis of Raw Seismic Data
1.Low frequency background noise
2.Trace gaps
3.Cable noise
4.Multiple analysis
5.Spectrum analysis of original data
6.Summary of original data analysis
3.2 Seismic Data Processing Challenges and Processing Ideas
1.Processing challenges
2.Processing ideas
3.3 Key Technical Measurements
1.Cable noise attenuation affected by external forces
2.Noise attenuation from endogenous cables
3.Blank trace interpolation
4.Random noise attenuation
5.Multiple suppression
6.Velocity selection
7.Time migration
3.4 Seismic Data Processing Flow
3.5 Analysis of Processing Results
1.Significant interference and multiple suppression
2.High signal-to-noise ratio
3.High resolution
4.Clear characteristics of the effective wave group
5.Good closure condition of the survey line
3.6 Presentation of Result Profiles
