Results 21 to 30 of about 208,504 (261)

Study on the pore structure characteristics and damage constitutive model of sandstone under freeze-thaw conditions

Frontiers in Earth Science, 2023
Rocks in Northwest China are often affected by the combined action of freeze-thaw and load erosion. Therefore, in order to better understand the mechanical properties of rocks in seasonal frozen areas and the meso-damage caused by freeze-thaw erosion ...
Junzu Ma, Jiaxu Jin, Pengfei Wu, Zhifa Qin, Baoxin Jia   +4 more
doaj   +1 more source

Dynamic Characterization of Microscopic Pore Structure in Medium–High Permeability Sandstones During Waterflooding

Nanomaterials
Understanding the microscopic characteristics and evolutionary patterns of pore structures during high-PV waterflooding is critical for improving the accuracy and efficiency of oil field development.
Jiayi Wu, Wenbo Gong, Qingyu Wang, Yuhang He, Junhui Guo, Yi Bao, Shuai Shao, Rubin Li   +7 more
doaj   +1 more source

Effect of volcanic dykes on coastal groundwater flow and saltwater intrusion : a field-scale multiphysics approach and parameter evaluation [PDF]

, 2017
Acknowledgments This research was primarily based on research grant‐aided by the Irish Department of Communications, Energy and Natural Resources under the National Geoscience Programme 2007–2013.
A. González-Quirós, Abarca, Abdul Nassir, Archie, Arps, Attwa, Babiker, Beaujean, Bense, Berkowitz, Boehmer, Boonstra, Bourhane, Bouwer, Bromley, C. Wilson, Carrera, Comte, Comte, Comte, Cook, Cooper, Cooper, Cronin, Custodio, Dam, Dickson, Dickson, Dogan, Earls, Engel, Engel, Ernst, Erskine, European Commission, Fetter, Günther, Hartley, Healy, Herckenrath, Herckenrath, Izquierdo, J.-C. Comte, Jacob, Kalin, Kirkegaard, Koukadaki, Linde, Marsily, McKinley, McNeill, Mitchell, Moench, Moench, Morel, Neuman, Nguyen, Oldenburg, Parasnis, Perrin, Post, Revil, Rücker, Sami, Si, Simmons, Singhal, Souza, Sultan, Summer, Takasaki, Taylor, U. Ofterdinger, Vittecoq, Vittecoq, Waxman, Werner, Wilkes, Yang, Zheng   +79 more
core   +3 more sources

Effect of CO2 flooding in an oil reservoir with strong bottom-water drive in the Tahe Oilfield, Tarim Basin, Northwest China

Energy Geoscience
The dissolution and diffusion of CO2 in oil and water and its displacement mechanism were investigated by laboratory experiment and numerical simulation for Block 9 in the Tahe oilfield, a sandstone oil reservoir with strong bottom-water drive in Tarim ...
Li Zhang, Haiying Liao, Maolei Cui
doaj   +1 more source

Experimental Study on the Effect of High Temperature on the Physical and Mechanical Properties of Sandstone with Different Bedding Angles

Applied Sciences, 2023
As a typical sedimentary rock, the number of beddings in the horizontal direction of sandstone is far greater than that in the vertical direction, leading to its physical and mechanical properties showing obvious anisotropy with changes in bedding angle.
Yan Qin, Nengxiong Xu, Wei Chen, Linqing Wu   +3 more
doaj   +1 more source

Experimental research into the effect of some operation factors and rock properties on the rate of penetration [PDF]

, 2020
Purpose. The purpose of this research is to investigate the effect of weight on bit (WOB), rotary speed (RPM), and some rock properties on the rate of penetration (ROP). Methods.
Ali, Mahrous A.M., Boghdady, Gamal Y., Mohamed, Ahmed S., Sayed, Mohamed A., Yassien, Mohamed A.   +4 more
core   +1 more source

Effect of freeze–thaw cycle on physical and mechanical properties and damage characteristics of sandstone

Scientific Reports, 2021
Rock deterioration under freeze–thaw cycles is a concern for in-service tunnel in cold regions. Previous studies focused on the change of rock mechanical properties under unidirectional stress, but the natural rock mass is under three dimensional ...
Longxiao Chen, Kesheng Li, Guilei Song, Deng Zhang, Chuanxiao Liu   +4 more
semanticscholar   +1 more source

Evaluation of consolidating and water repellent treatments applied to the miocene sandstone used in Tunisian Heritage Monuments

Materiales de Construccion, 2005
Summary The research reported in the present paper focused on the behaviour of the Miocene sandstone used to build the Roman aqueduct at Zaghouan-Carthage and other Tunisian Heritage monuments, after application of water repellent and consolidating ...
K. Zoghlami, D. Gómez-Gras, A. Álvarez, M. P. De Luxán   +3 more
doaj   +1 more source

Application of the Modified Shepard’s Method (MSM): A Case Study with the Interpolation of Neogene Reservoir Variables in Northern Croatia

Stats, 2020
Interpolation is a procedure that depends on the spatial and/or statistical properties of the analysed variable(s). It is a particularly challenging task for small datasets, such as in those with less than 20 points of data.
Tomislav Malvić, Josip Ivšinović, Josipa Velić, Jasenka Sremac, Uroš Barudžija   +4 more
doaj   +1 more source

Hydration Absorption and Thermal Effects of Outcrop Porous Sandstone Based on Intelligent Experimental and Infrared Thermography Techniques

Energies, 2023
Sandstones are enriched in deep energy reservoirs and also exist as outcrop rocks, where the pore characteristics of sandstone are influenced by hydration absorption and thermal effects.
Nai Hao, Yongliang Wang, Hao Cheng, Xiaochong Wu, Yi Zhao   +4 more
doaj   +1 more source