Article
Geosciences, Multidisciplinary
Qifeng Wang, Haifa Tang, Zhi Guo, Gang Cheng, Zhikai Lv, Qunming Liu
Summary: This study analyzes the geological and geochemical characteristics of Lower Jurassic shale in the Tarim Basin through experiments, discovering high total organic carbon (TOC) content and regional differences. The main kerogen types in the shale were identified as type III and type II2, with significant variations in thermal evolution maturity. The shale also exhibited a high content of brittle minerals, indicating good fracturing properties. Based on these findings, the Lower Jurassic shale gas in the Tarim Basin shows promising exploration prospects, particularly in specific areas within the Kuqa Depression and the East Tarim Basin.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Wentong He, Youhong Sun, Xuanlong Shan
Summary: The Tonghua Basin in Northeast China potentially contains shale oil and gas resources. The Hengtongshan Formation, particularly the second member, has been identified as having high oil-generating potential and is considered a good to very good source rock with good resource potential. Organic matter in the source rocks is mainly derived from aquatic organisms and higher plants, deposited and preserved in a saline reducing environment, with potential influence from volcanism.
APPLIED SCIENCES-BASEL
(2021)
Article
Geosciences, Multidisciplinary
Yifan Gu, Guangyin Cai, Dongfeng Hu, Zhihong Wei, Ruobing Liu, Jing Han, Zhiwei Fan, Jingyu Hao, Yuqiang Jiang
Summary: This study comprehensively characterizes the Upper Permian Linghao Formation shale in the Nanpanjiang Basin, revealing its high maturity and reservoir characteristics, indicating its significant potential for shale gas exploration.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Energy & Fuels
Rizwan Sarwar Awan, Chenglin Liu, Naseem Aadil, Qamar Yasin, Abdus Salaam, Azkar Hussain, Shangfeng Yang, Ashar Khan Jadoon, Yuping Wu, Muhammad Amar Gul
Summary: The geochemical evaluation of the Cretaceous Talhar Shale in the Lower Indus Basin of Pakistan reveals moderate to good hydrocarbon potential, making it suitable for unconventional energy exploration. Various analyses indicate characteristics favorable for hydraulic fracturing, showcasing its potential as a promising target in comparison to other global unconventional reservoirs.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Energy & Fuels
Penglin Zhang, Qingtao Meng, David Misch, Reinhard F. Sachsenhofer, Zhaojun Liu, Fei Hu, Lin Shen
Summary: Lacustrine oil shale in the Beipiao Basin was characterized by the presence of well-preserved fossils, with organic matter primarily sourced from phytoplankton and aquatic algal-bacterial organisms. High-quality oil shales were deposited under anoxic freshwater conditions, with low terrigenous detrital input, indicating a warm and humid paleoclimate.
INTERNATIONAL JOURNAL OF COAL GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Guodong Wei, Wei Wang, Liang Feng, Xiucheng Tan, Chuan Yu, Hualian Zhang, Zhiping Zhang, Shengxiu Wang
Summary: China has seen huge success in commercial production from marine organic-rich shale, but faces challenges in exploring lacustrine organic-rich shale. A study on the Lower Jurassic lacustrine shales in the eastern Sichuan Basin revealed different subfacies types and exploration prospects. The presence of different types of lacustrine shales with varying characteristics highlights the potential for shale hydrocarbon exploration and development in the region.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Engineering, Ocean
Nura Abdulmumini Yelwa, Khairul Azlan Mustapha, Mimonitu Opuwari, Mohammed Hail Hakimi
Summary: Shale sediments from four Cretaceous stratigraphic units in South Africa's Orange Basin were analyzed to determine their organic-matter characteristics. The results showed that the shale contained moderate amounts of organic matter, mainly Type III kerogen, which has the potential to be developed as a shale gas resource.
MARINE GEORESOURCES & GEOTECHNOLOGY
(2023)
Article
Energy & Fuels
Samra Ihsan, Tahira Fazeelat, Faiza Imtiaz, Arif Nazir
Summary: This study on source rock samples from the upper shale unit in the Lower Goru Formation of the Lower Indus Basin found that the samples have fair source rock potential and may be considered as a good candidate for hydrocarbon generation perspective. The study also revealed that the organic matter in the samples is mainly terrestrial and the depositional conditions vary from anoxic to dysoxic. Various maturity parameters showed mature organic matter input and peak oil-window for the samples, indicating an increase in thermal maturity with depth.
PETROLEUM SCIENCE AND TECHNOLOGY
(2022)
Article
Geosciences, Multidisciplinary
B. S. Hart, J. Schieber, J. Kalinec
Summary: We studied the origins of overpressure in Tertiary and Upper Cretaceous shales and sandstones in the northwestern Onshore Gulf of Mexico using cuttings and wireline logs. Our results suggest that clay diagenesis is the major source of excess pore pressure, rather than organic maturation. SEM imaging revealed nanoscale to microscale textural and mineralogic changes related to diagenesis. The experiment with cuttings demonstrated their utility and limitations. Additionally, our results challenge some assumptions about shale diagenesis used in pore-pressure studies.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Yunyan Ni, Dazhong Dong, Limiao Yao, Jianping Chen, Xing Liang, Fei Liu, Jian Li, Jinhao Guo, Jinliang Gao
Summary: This study analyzed gases from shale gas fields in the southern Sichuan Basin to investigate their geochemical characteristics and origins. The gases belonged to shale gas from the Upper Ordovician-Lower Silurian shale and were dominated by methane. The isotopic compositions of carbon indicated high thermal maturity and contributions from organic matter. The study found a complete carbon isotopic reversal trend and highlighted the importance of understanding the geochemical characteristics of shale gases for future exploration.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Di Ma, Zhijie Zhang, Chuanmin Zhou, Dawei Cheng, Haitao Hong, Hao Meng, Xinghe Yu, Zixiao Peng
Summary: The paleoenvironment of the Middle Jurassic Shaximiao Formation in the Sichuan Basin was reconstructed by analyzing the multicolored mudstones using sedimentological and elemental geochemical methods. The results indicate that the sediments were primarily derived from igneous rocks rather than recycled sediments. The paleoclimate evolved from semi-arid to semi-humid conditions, coinciding with records in other basins of the Northern Hemisphere.
Article
Energy & Fuels
Zhongcheng Li, Zhidong Bao, Zhaosheng Wei, Lei Li, Hailong Wang
Summary: The organic-rich shale of the Upper Cretaceous Qingshankou Formation is an important hydrocarbon source rock in Northeast China. This study found that the lacustrine shale from the Qingshankou Formation has good oil-generating potential and is mainly in the mature stage within the oil window. The biomarker composition of the shale suggests that it was formed in a reductive sedimentary environment with relatively high salinity water.
Article
Geosciences, Multidisciplinary
P. L. Silva, R. Marc Bustin
Summary: This study provides an integrated assessment of the source-rock potential of the Doig Formation, revealing high organic carbon content and a higher proportion of Type II kerogen in the Doig Phosphate Zone. It also suggests that as the formation thickens southwestwards, the thermal maturity and dry gas content increase.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
L. Taras Bryndzia, Ruarri J. Day-Stirrat, Amie M. Hows, Jean-Philippe Nicot, Anton Nikitin, Ozkan Huvaz
Summary: This study reveals that the produced waters in the Permian Delaware Basin are primarily in situ Wolfcamp shale formation water, influenced by evaporative brines. The osmosis-diffusion model predicts high osmotic pressures in the Wolfcamp shale, resulting in significant water and oil production.
Article
Geochemistry & Geophysics
Jiaqi Li, Zhihong Kang, Zhijiang Kang, Xuemei Zhang
Summary: By analyzing the geochemical characteristics, this study reveals that the source rocks of the black shale in the Mufushan Formation consist of granites and sedimentary rocks rich in ferromagnesian minerals, representing felsic rocks derived from the upper crust, with some involvement of mafic rocks. The source area of the Mufushan Formation black shale is inferred to have been a passive continental margin.
Article
Energy & Fuels
Sharon M. Swanson, Maria D. Mastalerz, Mark A. Engle, Brett J. Valentine, Peter D. Warwick, Paul C. Hackley, Harvey E. Belkin
INTERNATIONAL JOURNAL OF COAL GEOLOGY
(2015)
Article
Geosciences, Multidisciplinary
Paul C. Hackley, Carla Viviane Araujo, Angeles G. Borrego, Antonis Bouzinos, Brian J. Cardott, Alan C. Cook, Cortland Eble, Deolinda Flores, Thomas Gentzis, Paula Alexandra Goncalves, Joao Graciano Mendonca Filho, Maria Hamor-Vido, Iwona Jelonek, Kees Kommeren, Wayne Knowles, Jolanta Kus, Maria Mastalerz, Taissa Rego Menezes, Jane Newman, Ioannis K. Oikonomopoulos, Mark Pawlewicz, Walter Pickel, Judith Potter, Paddy Ranasinghe, Harold Read, Julito Reyes, Genaro De La Rosa Rodriguez, Igor Viegas Alves Fernandes de Souza, Isabel Suarez-Ruiz, Ivana Sykorova, Brett J. Valentine
MARINE AND PETROLEUM GEOLOGY
(2015)
Article
Microscopy
Paul C. Hackley, Brett J. Valentine, Lenard M. Voortman, Daan S. B. Van Oosten Slingeland, Javin Hatcherian
JOURNAL OF MICROSCOPY
(2017)
Article
Energy & Fuels
Lucy T. Ko, Stephen C. Ruppel, Robert G. Loucks, Paul C. Hackley, Tongwei Zhang, Deyong Shao
INTERNATIONAL JOURNAL OF COAL GEOLOGY
(2018)
Article
Chemistry, Multidisciplinary
Robert P. Eganhouse, Erica DiFilippo, James Pontolillo, William Orem, Paul Hackley, Brian D. Edwards
Correction
Energy & Fuels
Carla Viviane Araujo, Angeles G. Borrego, Brian Cardott, Renata Brenand A. das Chagas, Deolinda Flores, Paula Goncalves, Paul C. Hackley, James C. Hower, Marcio Luciano Kern, Jolanta Kus, Maria Mastalerz, Joao Graciano Mendonca Filho, Joalice de Oliveira Mendonca, Taissa Rego Menezes, Jane Newman, Isabel Suarez-Ruiz, Frederico Sobrinho da Silva, Igor Viegas de Souza
INTERNATIONAL JOURNAL OF COAL GEOLOGY
(2014)
Article
Energy & Fuels
Paul C. Hackley, N. Keno Luensdorf
Article
Energy & Fuels
Kouqi Liu, Mehdi Ostadhassan, Paul C. Hackley, Thomas Gentzis, Jie Zou, Yujie Yuan, Humberto Carvajal-Ortiz, Reza Rezaee, Bailey Bubach
Article
Energy & Fuels
Aaron M. Jubb, Paul C. Hackley, Javin J. Hatcherian, Jing Qu, Timothy O. Nesheim
Article
Geosciences, Multidisciplinary
Paul C. Hackley, Tongwei Zhang, Aaron M. Jubb, Brett J. Valentine, Frank T. Dulong, Javin J. Hatcherian
MARINE AND PETROLEUM GEOLOGY
(2020)
Article
Geosciences, Multidisciplinary
Paul C. Hackley, Carla Araujo, Angeles G. Borrego, Antonis Bouzinos, Brian J. Cardott, Humberto Carvajal-Ortiz, Martha Rocio Lopez Cely, Vongani Chabalala, Peter J. Crosdale, Thomas D. Demchuk, Cortland F. Eble, Deolinda Flores, Agnieszka Furmann, Thomas Gentzis, Paula A. Goncalves, Carsten Guvad, Maria Hamor-Vido, Iwona Jelonek, Michelle N. Johnston, Tatiana Juliao-Lemus, Siavros Kalaitzidis, Wayne R. Knowles, Jolanta Kus, Zhongsheng Li, Gordon Macleod, Maria Mastalerz, Taissa R. Menezes, Seare Ocubalidet, Richard Orban, Walter Pickel, Paddy Ranasinghe, Joana Ribeiro, Olga Patricia Gomez Rojas, Ricardo Ruiz-Monroy, Jaques S. Schmidt, Abbas Seyedolali, Georgios Siavalas, Isabel Suarez-Ruiz, Carlos Vargas Vargas, Brett J. Valentine, Nicola Wagner, Bree Wrolson, Julian Esteban Jaramillo Zapata
MARINE AND PETROLEUM GEOLOGY
(2020)
Article
Energy & Fuels
Aaron M. Jubb, Justin E. Birdwell, Paul C. Hackley, Javin J. Hatcherian, Jing Qu
Article
Energy & Fuels
Paul C. Hackley, Aaron M. Jubb, Brett J. Valentine, Javin J. Hatcherian, Jing-Jiang Yu, William K. Podrazky
Article
Energy & Fuels
Divya Kumari Mishra, Atul Kumar Varma, Vinod Atmaram Mendhe, Shailesh Agrawal, Bhagwan Das Singh, Paul C. Hackley
Summary: The study demonstrates the significance of both organic and inorganic constituents on the sorption capacity of shale samples. Results suggest a weak but positive correlation between total organic content (TOC) and methane sorption capacity (MSC) and Si values, indicating complex relationships that may involve bitumen retention in sample pore spaces. Further research is needed to fully understand the influence of individual clay mineral types on MSC.
Article
Geosciences, Multidisciplinary
Brett J. Valentine, Paul C. Hackley, Javin J. Hatcherian
Summary: Research on immature New Albany Shale samples using isothermal hydrous pyrolysis experiments showed that organic porosity increases with thermal maturity, while total organic carbon content stabilizes after a certain point. The development of organic porosity varied at different temperatures, indicating the importance of temperature and duration of artificial maturation on pore abundance in the samples.
MARINE AND PETROLEUM GEOLOGY
(2021)