Depositional environment and thermal maturity of the coal-bearing Longtan Shale in southwest Guizhou, China: Implications for shale gas resource potential

2020 ◽  
Vol 231 ◽  
pp. 103607 ◽  
Author(s):  
Qian Zhang ◽  
Sebastian Grohmann ◽  
Xiaochen Xu ◽  
Ralf Littke
Keyword(s):  
Shale Gas ◽  
Depositional Environment ◽  
Thermal Maturity ◽  
Resource Potential

STRATIGRAPHIC VARIATIONS IN THE DEPOSITIONAL ENVIRONMENT AND THE THERMAL MATURITY OF THE PENNSYLVANIAN TURNER MINE SHALE, ILLINOIS BASIN, INDIANA, USA

2018 ◽  
Author(s):  
Mohammad A. Alrowaie ◽  
◽  
Maria Mastalerz ◽  
Simon C. Brassell ◽  
Lisa M. Pratt
Keyword(s):  
Depositional Environment ◽  
Illinois Basin ◽  
Thermal Maturity

Peculiar Berriasian “Wealden” Shales of northwest Germany: Organic facies, depositional environment, thermal maturity and kinetics of petroleum generation

2021 ◽  
Vol 124 ◽  
pp. 104819
Author(s):  
Felix Froidl ◽  
Ralf Littke ◽  
Alireza Baniasad ◽  
Tianyu Zheng ◽  
Joschka Röth ◽  
...  
Keyword(s):  
Depositional Environment ◽  
Thermal Maturity ◽  
Organic Facies ◽  
Northwest Germany ◽  
Petroleum Generation ◽  
Kinetics Of

Shale Gas Preservation Conditions in South Anhui of Lower Yangtze Area

2014 ◽  
Vol 998-999 ◽  
pp. 1458-1461
Author(s):  
Jiang Hua Chen
Keyword(s):  
Shale Gas ◽  
Tectonic Evolution ◽  
Stable Distribution ◽  
Burial Depth ◽  
Core Analysis ◽  
Thermal Maturity ◽  
Tectonic Events ◽  
High Maturity ◽  
Preservation Conditions ◽  
Yangtze Area

There are good shales well developed in the study area with significant thickness and stable distribution. The study area is estimated to have a big potential for shale gas. However, the study area experienced three major phases of tectonic events and thus developed severe folds and big faults. From the outcrop study and core analysis information of some old geological wells, the thermal maturity of shale is quite high up to 4%. Graphitization is observed in lower Cambrian which acting as another indicator of high maturity. Study released that this may link to the tectonic evolution (volcanic activities) and deep burial depth. Therefore, the preservations conditions of shale gas in the study area would be a key point for the success of exploration.

Geochemical characteristics of shale gas and its response to thermal maturity (Ro) in the Longmaxi formation, Dingshan area, Southeast Sichuan

2019 ◽  
Vol 37 (11) ◽  
pp. 1270-1278 ◽  
Author(s):  
Cheng Zhong ◽  
Qirong Qin ◽  
Cunhui Fan ◽  
Dongfeng Hu
Keyword(s):  
Shale Gas ◽  
Geochemical Characteristics ◽  
Thermal Maturity ◽  
Longmaxi Formation

scholarly journals Hydrocarbon Generation Potential of the Campano-Maastrichtian Dark Mudstone Lithofacies, Benin Flank, South West Anambra Basin, Nigeria

2020 ◽  
Vol 24 (11) ◽  
pp. 1889-1897
Author(s):  
AJ Edegbai ◽  
WO Emofurieta
Keyword(s):  
Shale Gas ◽  
Isotope Geochemistry ◽  
Silica Content ◽  
Hydrocarbon Generation ◽  
Central Basin ◽  
Thermal Maturity ◽  
Anambra Basin ◽  
High Silica ◽  
Gas Potential ◽  
Hydrocarbon Generating Potential

The dark mudstone lithofacies of Mamu Formation was deposited during the Campano-Maastrichtian flooding episode. It is laterally heterogeneous, and has been subdivided into marsh, bay and central basin subenvironments in order of proximality. Arising from recommendation from a previous study, we evaluated its hydrocarbon generating potential using multidisciplinary tools involving visual kerogen analysis, as well as bulk and isotope geochemistry. Seventy-seven sample materials were taken from 3-outcrop sites at Uzebba, Okpekpe and Imiegba locations, Benin flank, SW Anambra Basin, Nigeria. The results show that bulk of the samples have good organic richness. Kerogen quality is dominantly of gas prone Type III kerogen. However, visual kerogen analysis indicates the presence of an oil prone Type II/III kerogen in the central basin subenvironments. An immature thermal maturity is inferred based on spore colour index (SCI) of less than 6 on the SCI chart (thermal alteration index of <2.5). In addition, we hypothesize that the dark mudstone lithofacies possesses biogenic gas potential based on its organic richness, kerogen quality and thermal maturity. Shale gas prospectivity is further enhanced by the low dip of the Mamu Formation, shallow burial as well as high silica content. Worth mentioning is the proximal marsh mudstone (Uzebba location) with suitable microfabric, very high silica as well as >10m of combined (continuous) outcropping and subcropping thickness Keywords: Kerogen, palynofacies, stable isotope geochemistry, shale gas,

Evaluation of source, depositional environment, thermal maturity and biodegradation of organic matter from Kohat-Potwar Basin, Pakistan

2019 ◽  
Vol 38 (2) ◽  
pp. 106-115 ◽  
Author(s):  
Arif Nazir ◽  
Munawar Iqbal ◽  
Abubakar Siddique ◽  
Waheed Ahmed
Keyword(s):  
Organic Matter ◽  
Depositional Environment ◽  
Thermal Maturity ◽  
Potwar Basin

Geochemical Variation in the High Thermal Maturity Longmaxi Shale Gas, Sichuan Basin

2019 ◽  
Author(s):  
Anyang Pan ◽  
Baojian Shen ◽  
Tenger ◽  
Jianzhog Qin
Keyword(s):  
Shale Gas ◽  
Sichuan Basin ◽  
Thermal Maturity ◽  
Longmaxi Shale ◽  
Geochemical Variation
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