Results 161 to 170 of about 714,372 (264)

Characterization of Pressure Pulsation Propagation in a Pump‐Turbine Based on the Same‐Frequency Tracking Method

Energy Science &Engineering, EarlyView.
ABSTRACT Pressure pulsation is a key factor affecting the safe and stable operation of pump‐turbines. This article is based on same frequency‐tracking method on the pressure pulsation propagation characteristics of pump‐turbine during generation mode. The numerical simulation is validated by experimental study on a model pump‐turbine.
Yanpin Li, Pengcheng Hao, Zichao Zhang, Lihong Zhang, Huayang Hai, Hengxiang Zhang, Xikun Wang, Jiarui Wang, Zipu Zhao, Peijie Peng   +9 more
wiley   +1 more source

Structures of Basin Ranges [PDF]

The Journal of Geology, 1905
openaire   +2 more sources

Experimental Study on Prevention of Coal and Gas Outburst by Hydraulic Fracturing in High Gas Coal Mine in Yangquan Mining Area

Energy Science &Engineering, EarlyView.
ABSTRACT To investigate the hydraulic fracturing mechanism of high‐fluid wells in the Yangquan mining area, coal seams from the Xinyuan and Xinjing mines were selected as research subjects. Experiments were conducted using the TCQT‐III low‐permeability coalbed gas‐phase displacement and production enhancement apparatus, along with the FINESORB‐3120 ...
Zhou Zhang, Pengxiang Wang, Wanying Yu, Lifang Zhao, Yunxing Cao, Baoan Xian, Yibing Wang, Fei Zhang   +7 more
wiley   +1 more source

Mesozoic–Paleozoic Structural Characteristics and Their Controlling Effects on Oil and Gas in the Kongnan Area of Bohai Bay Basin

Journal of Marine Science and Engineering
The Bohai Bay Basin is a typical marginal basin with complex internal structures and abundant oil and gas resources, exhibiting unique marine geological characteristics and processes.
Daicheng Peng, Dong Yang, Fei Cheng, Xiaoyu She, Ze Tao, Yukun Liu   +5 more
doaj   +1 more source

Study on Compound Percussive Drilling: Rock‐Breaking Mechanism of High Confining Pressure Formation in the East China Sea

Energy Science &Engineering, EarlyView.
ABSTRACT The effect of improving the depth of penetration (ROP) in deep, high‐confining pressure formation is closely related to the rock‐breaking method, which has become a bottleneck restricting the efficient development of oil and gas. Based on the current engineering practice of the Xihu block in the East China Sea Basin, experimental research on ...
Jiwei Li
wiley   +1 more source

Research on the Characteristics and Mechanisms of Supercritical CO2 Displacement of Shale Oil Under Nanoscale Confinement

Energy Science &Engineering, EarlyView.
ABSTRACT Shale reservoirs, characterized by compact pores, poor physical properties, and high organic matter content, exhibit significant differences in microscopic flow behavior compared to conventional oil reservoirs. These distinctions complicate the accurate assessment of shale oil reserves and the selection of optimal exploration and development ...
Wei Dang, Xin Zhang, Jiao Zhang, Lindong Shangguan, Yawen He   +4 more
wiley   +1 more source

Martian impact basins: Morphology differences and tectonic provinces [PDF]

Detailed geomorphic and structural mapping of five Martian basins and preliminary study of eleven other basins reveal four characteristic styles of modification that relate to the degree and age of past tectonic activity.
Mcgill, G. E., Schultz, P. M., Stam, M.
core   +1 more source

Quantitative Evaluation of Sand Body Connectivity Based on the Support Vector Machine Algorithm: A Case Study of the Putaohua Oil Reservoir in the Daqing Oil Field, Songliao Basin, China

Energy Science &Engineering, EarlyView.
A support vector machine (SVM) algorithm was applied to quantitatively predict the connectivity of the sand bodies. Verification using dynamic and static data demonstrated that the prediction accuracy of the algorithm reached 88%. The quantitative sand body connectivity results were used to establish a single sand body model.
Hui He, Chang Liu, Lin Xie, Xianming Li, Chuixian Kong, Pengshan Ma, Shiyuan Li   +6 more
wiley   +1 more source

Pre-disposed tectonic subsidence controls flood hazards and unplanned urbanisation dominates the flood disasters in the Pliocene to Holocene Kashmir basin, NW Himalayas

Quaternary Science Advances
The Pliocene to Holocene Kashmir basin of NW Himalaya, India, is prone to various geological and climatic hazards routinely connected to the climatic and structural setting of the Himalayan intermontane basins.
Afroz Ahmad Shah, Muhammad Gazali Rachman, Rajesh Kumar, Anushka Vashistha, Ajay Dashora, Muhsana Mahoor   +5 more
doaj  

Pathogenic Escherichia coli Virulome in Top Soil Improvers and Irrigation Waters Devoted to Leafy Vegetable Production: Hazard Assessment From a Case Study in Italy

Food Safety and Health, EarlyView.
Escherichia coli pathotype virulotyping to assess if combined top soil improver and water inputs would potentially lead to hybrid strains with shuffled virulence features in ready‐to‐eat vegetables. This is to support the transition toward safe and sustainable food production systems.
Giorgia Barbieri, Federica Gigliucci, Sofia Palma, Fabio Minelli, Paola Chiani, Manuela Marra, Maria Carollo, Arnold Knijn, Gianfranco Brambilla, Stefano Morabito   +9 more
wiley   +1 more source