Results 181 to 190 of about 1,688,734 (296)

Formation Mechanism and Variability of Tight Sandstone Reservoirs under Multi-Provenance Convergence: A Case Study of the Second Member of the Upper Triassic Xujiahe Formation in the Northeastern Sichuan Basin. [PDF]

ACS Omega
Pu Q, Lin L, Yu Y, Nan F, Zhong X, Li J, Xu Y, Yu X, Peng Q.   +8 more
europepmc   +1 more source

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

Unraveling the Coupling Mechanism of Viscous and Capillary Forces in Tight Sandstone: An Integrated Study Using Online NMR and Phase-Field Simulation. [PDF]

ACS Omega
Zhang Z, Zhang R, Sun J, Zhong X, Qu L, Zheng X, Miao Z.   +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

Spontaneous imbibition and oil displacement experimental investigation in fracture-matrix cores of tight sandstone reservoirs. [PDF]

Sci Rep
Chen W, He R, Li L, Bai J, Li Z, Wang T, Luo L, Zhang X, Zhang W.   +8 more
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

Advances in Nanoemulsion Characterization Techniques and Their Role in Oil Displacement Mechanisms. [PDF]

Molecules
Gong R, Feng X, Ma M, Liu Y, Li Y, Shi F, Duan X.   +6 more
europepmc   +1 more source

Analysis of lining force transmission coefficient and surrounding rock displacement in lined rock caverns for underground gas storage

Deep Underground Science and Engineering, EarlyView.
This study derives an explicit expression for the lining force transmission coefficient of underground gas storage lined rock caverns (LRCs) via the complex variable function method, considering the displacement release coefficient. Taking the 1‰ tensile strain of surrounding rock as the criterion to determine lining thickness, it systematically ...
Yaohui Li, Jianping Yang, Weizhong Chen
wiley   +1 more source

Study on the Enhancement of Recovery Rates in Heterogeneous Dense Reservoirs Using Foam Drives Stabilized by Low-Surface-Tension Nanoparticles. [PDF]

Molecules
Wang Z, Tang S, Xia Y, Chen Z.
europepmc   +1 more source

Reusing depleted oil and gas wells for geothermal energy: Feasibility, challenges, and a decision‐making framework for sustainable conversion

Deep Underground Science and Engineering, EarlyView.
The graphical abstract presents a structured decision‐support framework for assessing the feasibility of converting depleted oil and gas wells into geothermal energy systems. The left panel illustrates a comprehensive, multi‐stage decision‐making framework progressing from prefeasibility screening and technical–economic analysis to policy alignment ...
Karolina Bieryt, Yu Pan, Heinz Konietzky, Fei Wang   +3 more
wiley   +1 more source