Results 41 to 50 of about 1,975 (187)

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

Numerical Simulation of Time-Varying Characteristics in a High-Permeability Sandstone Reservoir: A Case of Gaoqian Southern Area

Geofluids
In the process of long-term water flooding in the Gaoqian Southern Area with an average porosity of 30% and an average permeability of 1333.5×10−3 μm2, the fluid-solid interaction among oil, water, and rock has a great influence on the pore structure. It
Hui Xu, Guofeng Cheng, Nannan Liu, Lizhi Wang, Zhenghuai Guo, Xiang Wang, Xiangji Dou, Juan Li, Shangping Chen, Xing Shi   +9 more
doaj   +1 more source

Suitability Evaluation of Specific Shallow Geothermal Technologies Using a GIS-Based Multi Criteria Decision Analysis Implementing the Analytic Hierarchic Process

Energies, 2018
The exploitation potential of shallow geothermal energy is usually defined in terms of site-specific ground thermal characteristics. While true, this assumption limits the complexity of the analysis, since feasibility studies involve many other ...
Francesco Tinti, Sara Kasmaee, Mohamed Elkarmoty, Stefano Bonduà, Villiam Bortolotti   +4 more
doaj   +1 more source

Shallow geothermal energy potential of south-west Germany [PDF]

, 2021
<p>A large-scale transformation of the heating and cooling sector is needed to achieve the climate neutrality goals by 2050 as outlined in the European Green Deal. One frequently discussed option for reducing the greenhouse gas emissions is the widespread use of ground source heat pumps (GSHPs) for heating and cooling living spaces. Here,
openaire   +2 more sources

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

Assessment of the Development Potential of Shallow Geothermal Energy Heating and Cooling Projects in Southern China Based on Whole-Lifecycle Methodology

Energies
The development of shallow geothermal energy projects in southern China can meet the demand for regional heating and cooling energy and carbon emission reduction.
Yiqirui Deng, Zhi Yao, Mengyu Chen, Yu-Jie Hu   +3 more
doaj   +1 more source

Towards Transformative Climate Governance: Capacities and Constraints for Local Government in Aotearoa New Zealand

Environmental Policy and Governance, EarlyView.
ABSTRACT An emerging consensus calls for transformative climate governance. However, what instigates and sustains transformative pathways remains unclear. This study characterises the existence, quality and structural underpinnings of transformative governance capacities in local government climate change response in Aotearoa New Zealand, applying a ...
Gangadari K. Ranawaka, Anna L. Berka, Karen F. Hytten, Florentine D. van Noppen   +3 more
wiley   +1 more source

Policy framework and strategic priorities for shallow geothermal energy deployment in Romania: A pathway towards EU climate neutrality targets [PDF]

EPJ Web of Conferences
This paper examines the policy framework governing shallow geothermal energy (SGE) utilization in Romania and proposes strategic priorities for accelerating market uptake in alignment with European Union climate neutrality objectives.
Iudean Dan, Muresan Calin, Laszlo Rapolti, Cirstea Stefan, Munteanu Radu Adrian   +4 more
doaj   +1 more source

A Reassessment of Petrochemistry of ~1.2 Ga Tonalitic Rocks of the Northern Tugela Terrane, Natal Metamorphic Belt, South Africa: Further Constraints on the Evolution of This Belt

Geological Journal, EarlyView.
Our petrochemical studies on ~1.2 Ga granitoids of the Natal Metamorphic Belt, South Africa, do not suggest any property similar to Phanerozoic‐style subduction‐related granitoids. Plot of Kotongweni Tonalite in Y versus Sr diagram (after Moyen 2011), note that most samples have Sr/Y < 50.
Palesa Leuta, Saumitra Misra, Thembiso O. Basupi   +2 more
wiley   +1 more source

Genome-centric insight into metabolically active microbial population in shallow-sea hydrothermal vents

Microbiome, 2022
Background Geothermal systems have contributed greatly to both our understanding of the functions of extreme life and the evolutionary history of life itself.
Xiaofeng Chen, Kai Tang, Mu Zhang, Shujing Liu, Mingming Chen, Peiwen Zhan, Wei Fan, Chen-Tung Arthur Chen, Yao Zhang   +8 more
doaj   +1 more source