Results 11 to 20 of about 261,411 (259)

Exponential Capillary Pressure Functions in Sedimentary Rocks [PDF]

E3S Web of Conferences, 2019
The Brooks-Corey power-law capillary pressure model is commonly imposed on core analysis data without verifying the validity of its underlying assumptions.
Afrough Armin, Bahari Moghaddam Mehdi, Romero-Zerón Laura, Balcom Bruce J.   +3 more
doaj   +1 more source

Alterations of pulmonary vascular afterload in exercise‐induced pre‐ and post‐capillary pulmonary hypertension

Physiological Reports, 2023
Exercise imposes increased pulmonary vascular afterload based on rises in pulmonary artery (PA) wedge pressure, declines in PA compliance, and resistance‐compliance time. In health, afterload stress stabilizes during steady‐state exercise.
Elizabeth Karvasarski, Robert F. Bentley, Tayler A. Buchan, Felipe H. Valle, Stephen P. Wright, Isaac S. Chang, John T. Granton, Susanna Mak   +7 more
doaj   +1 more source

Characterization of Liquid Bridge in Gas/Oil Gravity Drainage in Fractured Reservoirs [PDF]

Iranian Journal of Oil & Gas Science and Technology, 2019
Gravity drainage is the main mechanism which controls the oil recovery from fractured reservoirs in both gas-cap drive and gas injection processes.
Behrouz Harimi, Mohsen Masihi, Mohammad Hosein Ghazanfari   +2 more
doaj   +1 more source

Room for improvement in pulmonary capillary wedge pressure reporting: a review of hemodynamic tracings at a large academic medical center

Pulmonary Circulation, 2020
To describe the frequency with which pulmonary capillary wedge pressure measurements, obtained during right heart catheterization, are falsely elevated and to educate operators on techniques to improve accuracy of pulmonary capillary wedge pressure ...
Shelsey W. Johnson, Alison Witkin, Josanna Rodriguez-Lopez, Richard Channick   +3 more
doaj   +1 more source

Impact of Pressure and Brine Salinity on Capillary Pressure-Water Saturation Relations in Geological CO2 Sequestration

Advances in Condensed Matter Physics, 2016
Capillary pressure-water saturation relations are required to explore the CO2/brine flows in deep saline aquifers including storage capacity, relative permeability of CO2/brine, and change to stiffness and volume.
Jongwon Jung, Jong Wan Hu
doaj   +1 more source

Impact of the updated hemodynamic definitions on diagnosis rates of pulmonary hypertension

Pulmonary Circulation, 2020
We evaluated whether updated pulmonary hypertension definitive criteria proposed in sixth World Symposium on Pulmonary Hypertension had an impact on diagnosis of overall pulmonary hypertension and pre-capillary and combined pre- and post-capillary ...
Seda Tanyeri, Ozgur Y. Akbal, Berhan Keskin, Aykun Hakgor, Ali Karagoz, Hacer Ceren Tokgoz, Cem Dogan, Zubeyde Bayram, Seyhmus Kulahcioglu, Emrah Erdogan, Ismail Balaban, Dogancan Ceneli, Rezzan Deniz Acar, Ibrahim H. Tanboga, Nihal Ozdemir, Cihangir Kaymaz   +15 more
doaj   +1 more source

Effect of H2S content on relative permeability and capillary pressure characteristics of acid gas/brine/rock systems: A review

Journal of Rock Mechanics and Geotechnical Engineering, 2022
Geological storage of acid gas has been identified as a promising approach to reduce atmospheric carbon dioxide (CO2), hydrogen sulfide (H2S) and alleviate public concern resulting from the sour gas production.
Xiaoyan Zhang, Qi Li, Mathias Simon, Guodong Zheng, Yongsheng Tan   +4 more
doaj   +1 more source

Study on Two-phase Flow Mechanisms in Nanopore Considering Microcosmic Deformation and Dynamic Capillary Force

Geofluids, 2022
Coring experiments show that nanopores are extensively distributed in shale oil reservoirs and tend to be deformed when a significant pressure variation exists, and thus the dynamic capillary force phenomenon and flow mechanisms in nanopores can be ...
Xiangji Dou, Cong Lin, Sujin Hong, Pengfei Zhu, An Wang, Guodong Qi   +5 more
doaj   +1 more source

Pore-Scale Modelling of Three-Phase Capillary Pressure Curves Directly in Uniformly Wet Rock Images

Geofluids, 2021
In this work, we developed a semianalytical model to compute three-phase capillary pressure curves and associated fluid configurations for gas invasion in uniformly wet rock images.
Yingfang Zhou, Dimitrios Georgios Hatzignatiou, Johan Olav Helland, Yulong Zhao, Jianchao Cai   +4 more
doaj   +1 more source

Scaling of capillary pressure-saturation curve in porous media under various wetting conditions

Journal of Rock Mechanics and Geotechnical Engineering
The capillary pressure curve provides fundamental insights into the dynamics of fluid-fluid displacement and phase distributions. Capillary scaling is crucial for extrapolating capillary pressure-saturation data from laboratory tests to field ...
Tian Lan, Ran Hu, Xi-Ning Su, Zhibing Yang, Yi-Feng Chen   +4 more
doaj   +1 more source