Results 71 to 80 of about 6,860 (216)

Porosity estimation in kerogen-bearing shale gas reservoirs

, 2018
Porosity is a fundamental petrophysical parameter in shale gas reservoirs that governs the space for hydrocarbon storage, and directly determines the free gas amount and absorbed gas capability.
Lukman Johnson, Rezaee, M. Reza, Johnson, L., Reza Rezaee, Han, T., Hongyan Yu, Zhang, Y., Yu, H., Arif, M., Tongcheng Han, Muhammad Arif, Zhenliang Wang, Wang, Z., Yihuai Zhang   +13 more
core   +1 more source

Dynamic cycling and redox transformations of dissolved organic sulfur in the surface ocean

Limnology and Oceanography, Volume 71, Issue 4, April 2026.
Abstract The marine dissolved organic sulfur (DOS) pool contains both labile metabolites that are rapidly cycled in the surface ocean and compounds that may persist for thousands of years in the marine environment. Here, we describe the sulfur speciation of marine solid‐phase extracted DOS (DOSSPE) from the North Atlantic surface ocean, revealing a ...
Molly A. Crotteau, Erin L. McParland, Alexandra A. Phillips, Elizabeth B. Kujawinski, Krista Longnecker, Aaron M. Martinez, Samuel M. Webb, Morgan R. Raven   +7 more
wiley   +1 more source

Relationship between Hydrocarbon Gas Generation and Kerogen Structural Evolution Revealed by Closed System Pyrolysis and Quantitative Py-GC Analysis of a Type II Kerogen

, 2021
Kerogen can release both liquid and gaseous hydrocarbons during thermal maturation. In this study, the maturation and hydrocarbon generation of a low-maturity type II kerogen were simulated via temperature-programmed gold tube closed system (GTCS ...
Chunqing Jiang, Zheng, Yijun, Yuhong Liao, Yijun Zheng, Liao, Yuhong, Jiang, Chunqing   +5 more
core   +1 more source

Mechanism of adsorption-desorption hysteresis of shale gas in kerogen and influencing factors analysis

Youqi dizhi yu caishoulu
The adsorption behavior of methane in kerogen is of great significance for shale gas reserve evaluation and production prediction. However， there is still a lack of clear understanding of the hysteresis phenomenon and its micro-causes in the process of ...
TANG Haijun, QIU Xingdong, LIU Yisheng, DAI Xia, TANG Cong, HUANG Liang, WANG Lei   +6 more
doaj   +1 more source

Depositional Facies, Sequence Stratigraphy, and Diagenesis of Lower Cretaceous Carbonate Reservoir, Southern Iraq: Implications for Petroleum Exploration

Journal of Petroleum Geology, Volume 49, Issue 2, Page 312-345, April 2026.
ABSTRACT The Lower Cretaceous Yamama Formation of southern Iraq represents a key carbonate reservoir within Iraq and the Middle East, yet its complex depositional facies architecture and diagenetic alterations present challenges for predicting reservoir quality.
A. K. A. Mohammed, F. Velledits, I. Q. Mohammed, M. Alsuwaidi, H. Mansurbeg, F. Kristály, D. K. Ivanova, Eloi González‐Esvertit, A. Awdal   +8 more
wiley   +1 more source

Diffusion Behavior of Methane in 3D Kerogen Models

, 2021
As global energy demand increases, natural gas recovery from source rocks is attracting considerable attention since recent development in shale extraction techniques has made the recovery process economically viable.
Narasimhan Loganathan (2612053), A. Ozgur Yazaydin (1941613), Geoffrey M. Bowers (1843741), Kai Bin Yu (8828711), Andrey G. Kalinichev (1789666)   +4 more
core   +2 more sources

Geochemical and Seismic Constraints on the Role of Mud Diapirs in Petroleum Migration and Accumulation in the Recôncavo Basin, NE Brazil

Journal of Petroleum Geology, Volume 49, Issue 2, Page 433-447, April 2026.
ABSTRACT In the Recôncavo Basin, Northeast of Brazil, mud diapirs have been reported for decades, but their role within the basin's petroleum system remains poorly constrained. Here, we combine 2D seismic interpretation, field observations, and organic geochemical analyses of rocks and oil seeps to investigate the relationship between diapirism and ...
Cora Mattos, Egberto Pereira, Lucas Pinto Heckert Bastos, René Rodrigues   +3 more
wiley   +1 more source

Kerogen-rich shales and coals: Key drivers of microbial life and carbon cycling in the deep biosphere

DNA sequence data of DNA from kerogens after microbial enrichment. These data are for sequences of bacteria inhabiting laboratory microcosms of kerogens inoculated with a lab culture. They are sequences associated with incoulation of four primary kerogen
Cockell, Charles, Waajen, Annemiek
core   +1 more source

Critical Review on the Molecular Behavior of Surfactants at the Oil–Water Interface During Oil Displacement

Energy Science &Engineering, Volume 14, Issue 3, Page 1626-1662, March 2026.
This review systematically explores the molecular behavior of diverse surfactants (anionic, cationic, nonionic, amphoteric) at the oil–water interface through molecular dynamics simulations. It highlights their roles in reducing interfacial tension, altering interfacial structure, and enhancing oil recovery efficiency.
Zhaowei Hou, Wenchao Jiang, Xiaolin Wu, Jian Gai, Liqiang Zheng, Jie Chen, Shuanghua Wang, Shouliang Lu, Bin Huang, Jichao Sun, Long Su   +10 more
wiley   +1 more source

Multidisciplinary Analyses of Terrestrial Samples Used to Interpret an Inorganic Origin (Anhydrite:Ce3+) for the 304 and 325‐nm Doublet Fluorescence Detected by the Mars 2020 SHERLOC Instrument at Jezero Crater

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Doublet fluorescence at 304 and 325‐nm under deep ultraviolet (DUV) excitation was detected on Mars at Jezero crater by the Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) instrument onboard the Mars 2020 rover Perseverance.
N. C. Haney, R. V. Morris, R. S. Jakubek, J. V. Clark, J. I. Simon, W. P. Buckley, R. T. Downs, E. B. Rampe, R. M. G. Armytage, T. G. Graff, A. S. Burton, F. M. McCubbin, E. L. Berger, V. M. Tu, P. D. Casbeer, S. A. Mertzman, K. H. Williford, E. L. Scheller, T. Fornaro, S. Siljeström, A. Steele, K. P. Hand, T. J. Lapen   +22 more
wiley   +1 more source