Results 31 to 40 of about 5,874 (174)

Evaluation of pore-throat structures of carbonate reservoirs based on petrophysical facies division

Frontiers in Earth Science, 2023
After complex geological transformation, such as sedimentation, diagenesis, and tectonic transformation, carbonate reservoirs have developed multiple reservoir spaces with significant heterogeneity and various pore-throat structures, including pores ...
Jue Hou, Lun Zhao, Wenqi Zhao, Zhao Feng, Zhao Feng, Xueke Wang, Xing Zeng   +6 more
doaj   +1 more source

Alteración diagenética y preservación diferencial de los conjuntos óseos de la localidad arqueológica Paso Otero (provincia de Buenos Aires, Argentina)

Estudios Geologicos, 2000
El objetivo de este trabajo es el de determinar el grado de alteración diagenética de cuatro conjuntos óseos provenientes de tres sitios de la localidad arqueológica Paso Otero, ubicada en la cuenca media del río Quequén Grande (Provincia de Buenos Aires,
M. Gutiérrez, G. Martínez, C. Nielsen-Marsh   +2 more
doaj   +1 more source

Anatomy and variation in the paraphyletic Mosasaurus lemonnieri assemblage from the Craie phosphatée de ciply, Belgium

The Anatomical Record, EarlyView.
Abstract Nineteenth century excavations of the Ciply‐Malogne Phosphatic Chalk Formation in Hainaut, Belgium, yielded over 50 partial mosasaur skeletons, the majority of which were referred to the species Mosasaurus lemonnieri Dollo, 1889. In the years since, this taxon has experienced a complicated taxonomic history, and its exceptional hypodigm has ...
Henry S. Sharpe, Hallie P. Street‐Sampson, Takuya Konishi, Michael W. Caldwell   +3 more
wiley   +1 more source

Mineralogía de los materiales de la Formación de La Viñuela (Cordilleras Béticas)

Estudios Geologicos, 1984
Se ha estudiado la composición mineralógica de unas muestras de la serie tipo de la Formación de La Viñuela (norte de Vélez Málaga, Cordilleras Béticas), datadas como Burdigaliense inferior.
E. Galán, J. M. González, C. Fernández Nieto, G. Barceló   +3 more
doaj   +1 more source

Diagenesis of tight sandstone and its influence on reservoir properties: A case study of Fuyu reservoirs in Songliao Basin, China

Unconventional Resources, 2023
Diagenesis is the primary cause of the densification of the Fuyu reservoir in Sanzhao sag, Songliao Basin. In this paper, the types of diagenesis, the influence of diagenesis on reservoir physical properties and the formation reasons of tight reservoir ...
Shanghua Si, Junhao He, Yutao Zhao, Chuang Er, Yubin Bai, Weitao Wu   +5 more
doaj   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Génesis de Nódulos de Cuarzo en el Paleozoico de la Ibérica (Rama Aragonesa)

Estudios Geologicos, 1987
En formaciones samíticas y pelíticas del Paleozoico inferior de la Rama Aragonesa de la Cordillera Ibérica se generan nódulos de sílice que son apreciables a escala microscópica y mesoscópica.
A. Navas, J. Tena
doaj   +1 more source

Rock mechanical properties under reconstructed deep in situ thermo–hydro–mechanical conditions: Implications for CO₂‐related injection scenarios

Deep Underground Science and Engineering, EarlyView.
The graphical abstract illustrates a reconstructed in situ thermo‐hydro‐mechanical (THM) framework in which porosity serves as the central variable linking stress, pore pressure, and temperature to evolving mechanical properties of rocks. Under burial conditions, in situ stress, pore pressure, and temperature jointly govern volumetric strain and ...
Mingyuan Lu, Jun Wang, Zixiong Qi, Ruixuan Chen, Hongtao Wang, Hongwei Zhou   +5 more
wiley   +1 more source

Mineralogía y génesis de las arcillas de las unidades del Campo de Gibraltar. I. Areniscas del Aljibe

Estudios Geologicos, 1988
Las «areniscas del Aljibe» son materiales bimodales constituidos en su mayor parte por cuarzos eólicos con «coating» ferruginoso o arcilloso y cemento de cuarzo sintaxial. Tanto la composición mineralógica de la muestra total como la de la fracción < 2 μ
P. Rodríguez Jiménez, M. D. Ruiz Cruz
doaj   +1 more source

Quantitative simulation of the densification process of sandstone reservoir in the Xu 3 Member of Xujiahe Formation in western Sichuan Depression, Sichuan Basin

地质科技通报, 2023
In order to clarify the densification process and quantitatively restore the porosity evolution of the Xu 3 Member sandstone reservoir in western Sichuan Depression, the diagenesis of the Xu 3 Member was system atically analyzed using thin sections ...
Yu Chang, Mingjie Liu, Zhuang Zhang, Sujuan Ye, Yingtao Yang, Ling Wu, Ling Zhang, Hongli Nan, Xiucheng Tan, Wei Zeng, Chengbo Lian   +10 more
doaj   +1 more source