scholarly journals The geochemical characteristics, distribution of marine source rocks and gas exploration potential in the northwestern Sichuan Basin, China

2021 ◽  
Author(s):  
Guoyi Hu ◽  
Fei He ◽  
Jingkui Mi ◽  
Yilin Yuan ◽  
Jinhao Guo
Keyword(s):  
Sichuan Basin ◽  
Geochemical Characteristics ◽  
Source Rocks ◽  
Marine Source

Discussion on marine source rocks thermal evolvement patterns in the Tarim Basin and Sichuan Basin, west China

2007 ◽  
Vol 52 (S1) ◽  
pp. 141-149 ◽  
Author(s):  
Bin Zhang ◽  
Zhe Zhao ◽  
ShuiChang Zhang ◽  
JianPing Chen
Keyword(s):  
Tarim Basin ◽  
Sichuan Basin ◽  
Source Rocks ◽  
West China ◽  
Marine Source

scholarly journals Geochemical Characteristics and Significances of Rearranged Hopanes in Jurassic Source Rocks in the Center Sichuan Basin

2020 ◽  
Author(s):  
Xiaolin Lu ◽  
Meijun Li ◽  
Youjun Tang ◽  
Haitao Hong ◽  
Jizhen Zhang ◽  
...  
Keyword(s):  
Sichuan Basin ◽  
Geochemical Characteristics ◽  
Source Rocks

Generation and origin of natural gas in Lower Palaeozoic shales from southern Sweden

1969 ◽  
pp. 37-40
Author(s):  
Niels Hemmingsen Schovsbo ◽  
Arne Thorshøj Nielsen
Keyword(s):  
Source Rocks ◽  
Southern Sweden ◽  
Hydrocarbon Gases ◽  
Biogenic Gas ◽  
South Central ◽  
Alum Shale ◽  
Marine Source ◽  
Lower Palaeozoic ◽  
Background Gas ◽  
Origin Of Natural Gas

The Lower Palaeozoic succession in Scandinavia includes several excellent marine source rocks notably the Alum Shale, the Dicellograptus shale and the Rastrites Shale that have been targets for shale gas exploration since 2008. We here report on samples of these source rocks from cored shallow scientific wells in southern Sweden. The samples contain both free and sorbed hydrocarbon gases with concentrations significantly above the background gas level. The gases consist of a mixture of thermogenic and bacterially derived gas. The latter likely derives from both carbonate reduction and methyl fermentation processes. The presence of both thermogenic and biogenic gas in the Lower Palaeozoic shales is in agreement with results from past and present exploration activities; thermogenic gas is a target in deeply buried, gas-mature shales in southernmost Sweden, Denmark and northern Poland, whereas biogenic gas is a target in shallow, immature-marginally mature shales in south central Sweden. We here document that biogenic gas signatures are present also in gas-mature shallow buried shales in Skåne in southernmost Sweden.

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