Results 151 to 160 of about 7,602 (258)

World's fastest 10 000‐m breakthrough: The XY‐22 well redefines deep‐earth access in the Tarim Basin

Deep Underground Science and Engineering, EarlyView.
The Tarim Basin in northwestern China hosts one of the world's deepest petroleum systems, exemplified by the XY‐22 ultra‐deep well (bottom depth: 11 116 m; ~220°C, ~145 MPa). This study integrates tectonic mapping, geological cross‐sections, ultraviolet fluorescence microscopy, and optical photothermal infrared (OPTIR) spectroscopy to characterize ...
Qingwen Tan, Fangkai Liu, Sen Zhu, Guangyou Zhu, Haiping Huang   +4 more
wiley   +1 more source

Clay deposits in the Benue Valley, Northern Cameroon: mineralogical, chemical and technological characterisation for uses in ceramic bricks production. [PDF]

Sci Rep
Kagonbé BP, Ngarena KM, Cengiz Ö, Djenabou SF, Bakaïné VD, Yanné E, Djoda FP.   +6 more
europepmc   +1 more source

Modeling and monitoring injectivity evolution during cold CO2 injection with field evidence from aquistore carbon capture and storage operations

Deep Underground Science and Engineering, EarlyView.
This work integrates 5 years of field data from the Aquistore CCS project with a non‐isothermal THM modeling framework to explain how cold CO2 injection alters injectivity over time. The study shows that sustained cooling near the wellbore reduces effective stresses, promotes tensile micro‑cracking, and leads to semi‑reversible permeability enhancement
Alireza Rangriz Shokri, Stephen Talman, Erik Nickel, Rick Chalaturnyk   +3 more
wiley   +1 more source

Acid Dissolution of Magnesian-Calcite Stromatolites from Lagoa Salgada: An Experimental Evaluation Using X‑ray Microtomography. [PDF]

ACS Omega
Serra VFH, da Silva JP, da Cunha ACS, Neyra JR, Lucas CRDS, da Silva DNN, Aum PTP.   +6 more
europepmc   +1 more source

Numerical research on anti‐dislocation measures design of deep‐buried tunnels in an anisotropic rock mass area

Deep Underground Science and Engineering, EarlyView.
This paper conducts a numerical simulation study on the construction of a deep‐buried tunnel in an anisotropic stratum area. A statistical analysis of the effects of two anti‐faulting design measures, namely, a conventional design and an articulated design, is carried out, and the results demonstrate the effectiveness of the anti‐faulting structures ...
Shiqi Liu, Huanling Wang, Yong Zhou, Zhen Wang   +3 more
wiley   +1 more source

CHEMICAL AND MINERALOGICAL CHARACTERISTICS OF SOME SHALE DEPOSITS IN EGYPT [PDF]

Egyptian Journal of Desert Research
S. El-Demerdashe, M. Abdel-Rahman
doaj   +1 more source

Multi-scale mechanistic evaluation of reactivity balance in metakaolin-nano-CaCO₃ systems for high-performance stabilization of problematic clays. [PDF]

Sci Rep
Hosseinzadeh M, Abdollahi M.
europepmc   +1 more source

Numerical investigation of natural fracture activation and leakage risk during CO2 sequestration in depleted sandstone reservoirs

Deep Underground Science and Engineering, EarlyView.
This study investigates the hydro‐mechanical response and fracture evolution in depleted sandstone reservoirs during CO2 injection, considering both direct wellbore injection and hydraulic‐fracture‐assisted injection. The graphical abstract illustrates how CO2 injection induces dynamic stress redistribution, leading to natural fracture activation ...
Haiyang Wang, Chen Lu, Yufei Wang, Yichen Yang, Xu Su, Desheng Zhou, Qingqing Wang   +6 more
wiley   +1 more source

['MINERALOGICAL CHARACTERISTICS OF LATERITE DEPOSITS, ZIARAT DISTRICT, WESTERN PAKISTAN.']

Journal of Mountain Area Research
Abd ullah, Muhammad Ayoub Khan, Muhammad Panezai, Hikmat Ullah Kakar, Muhammad Tariq   +4 more
doaj   +1 more source

Chemical-mineralogical features and physical properties of archaeological adobe: The evidence from Tell Zurghul/Nigin (Dhi Qar, Iraq). [PDF]

PLoS One
Volpi L, Santoro De Vico F, Arizzi A, Lanzaro N, Nadali D.   +4 more
europepmc   +1 more source