Results 181 to 190 of about 10,488 (307)

Designing Orthogonal‐Arc Trajectories for Horizontal Wells to Reduce Drilling Cost in Development of Shale Oil/Gas Reservoirs

Energy Science &Engineering, EarlyView.
Designing 3‐dimensional (3D) horizontal well trajectories is critical for enhancing drilling efficiency in shale reservoirs. This paper proposes an innovative Orthogonal‐Arc Trajectory (OAT) for 3D horizontal wells, which employs a single constant curvature in the curved section.
Jun Zhang, Boyun Guo, Sohail Nawab
wiley   +1 more source

Recovery Factor of Pure Helium Injection in Depleted Gas Reservoirs and Its Influencing Factors

Energy Science &Engineering, EarlyView.
This study employs compositional numerical simulation to systematically investigate the effects of injection rate, production rate, storage duration, and injection‐production scheme on pure helium recovery in depleted gas reservoirs. Low injection rates reduce viscous fingering while high production rates maximize near‐wellbore helium extraction ...
Shijie Zhu, Danlin Chen, Yang Wang, Zuping Xiang, Zhijun Li, Mengna Yang, Da Li   +6 more
wiley   +1 more source

Mass culture of equine synovial fluid‐derived mesenchymal stromal cells using nonwoven polyethylene terephthalate fabrics

Equine Veterinary Journal, EarlyView.
Abstract Background Culture protocols need to yield 100 million equine synovial fluid (SF)‐derived mesenchymal stromal cells (SF‐MSCs) in around 3 weeks are needed, before these cells can be evaluated as agents of articular repair in clinical trials. Objectives To investigate mass culture of equine SF‐MSC culture protocols using nonwoven polyethylene ...
Miho Daniel Yoshitomi, Tomohide Kuramoto, Takashi Hatazoe, Kenta Mitsuda, Henry Smith, Kazuhiro Misumi   +5 more
wiley   +1 more source

Multicontinuum Homogenization for Poroelasticity Model

International Journal for Numerical Methods in Fluids, EarlyView.
This work derives a generalized multicontinuum poroelasticity model using the multicontinuum homogenization method to enable accurate coarse‐grid simulations of coupled flow–mechanics processes in highly heterogeneous porous media. Coupled constraint cell problems are formulated, and the corresponding multicontinuum equations are rigorously derived ...
Dmitry Ammosov, Mohammed Al Kobaisi, Yalchin Efendiev   +2 more
wiley   +1 more source

Recent advances in multifunctional soft robots: A materials–structures–systems co‐design perspective for synergistic integration

FlexMat, EarlyView.
Abstract Soft robots, engineered from highly compliant materials, offer superior adaptability and safety in unstructured environments compared to their rigid counterparts. Recent advancements, fueled by bio‐inspiration and material programmability, have led to the rapid co‐evolution of their core modules: actuation, sensing, protection, energy, and ...
Qiulei Liu, Zicao Peng, Chong Sun, Haitao Yang   +3 more
wiley   +1 more source

Transient Flow Characterization between Matrix and Natural Fractures in Shale Oil Reservoir. [PDF]

ACS Omega
Wang Z, Wang S, Liu J, Zhang W, Xia D.
europepmc   +1 more source

Molecular Palaeontology Prospects From Exceptionally Preserved Eocene Brackish‐Water Bivalve Batissa sitakaraensis (Venerida: Corbiculidae) From Hokkaido, Japan

Geological Journal, EarlyView.
This study reports the exceptional preservation of the Eocene freshwater bivalve Batissa sitakaraensis from Hokkaido, Japan. Multimodal analyses reveal that both the aragonitic shell mineralogy and the delicate organic periostracum retain their original structural and chemical characteristics after millions of years.
Taro Yoshimura, Kazuki Hirota, Hiroyuki Kagi, Takashi Matsubara, Takenori Sasaki   +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

Randomized Phase II Trial of Consolidation Pembrolizumab After Definitive Chemoradiotherapy in Locally Advanced Nasopharyngeal Carcinoma: KCSG HN19‐09, CONPELAN Study

Head &Neck, EarlyView.
ABSTRACT Background The benefit of consolidation programmed cell death protein 1 (PD‐1) blockade after chemoradiotherapy in locoregionally advanced nasopharyngeal carcinoma (NPC) remains unclear. Methods Patients with stages II–IVB NPC were randomized (2:1) to pembrolizumab 200 mg or placebo every 3 weeks for up to 17 cycles after chemoradiotherapy ...
Sang Hoon Chun, Seyoung Seo, Jang Ho Cho, Keon‐Uk Park, Sang‐Cheol Lee, Yong Won Choi, Tak Yun, Seong Hoon Shin, Sung‐Bae Kim, Seungeun Lee, Chang Ho Ahn, Bhumsuk Keam   +11 more
wiley   +1 more source

Recent Advances and Future Strategies in Chemical Water Shutoff for Gas Reservoirs Under Harsh Conditions. [PDF]

Molecules
Dai Z, Yue M.
europepmc   +1 more source