Results 1 to 10 of about 120,339 (187)

Mathematical model of velocity and distribution law in gas lift reverse circulation well washing flow field for drilling shaft sinking [PDF]

Scientific Reports
To reveal the velocity distribution law of a gas lift reverse circulation well washing flow field in drilling shaft sinking, a velocity mathematical model of well washing flow field is established.
Longhui Guo, Hua Cheng, Zhishu Yao, Chuanxin Rong, Jian Lin, Xiaoyun Wang   +5 more
doaj   +6 more sources

Mechanisms of Mobility Control and Enhanced Oil Recovery of Weak Gels in Heterogeneous Reservoirs [PDF]

Gels
At present, most oilfields in China have entered the late, high-water-cut stage, commonly facing declining single-well productivity and increasingly pronounced reservoir heterogeneity. Prolonged waterflooding has further exacerbated permeability contrast,
Zhengxiao Xu, Ming Sun, Lei Tao, Jiajia Bai, Wenyang Shi, Na Zhang, Yuyao Peng   +6 more
doaj   +2 more sources

Improvement of sand-washing performance and internal flow field analysis of a novel downhole sand removal device

Scientific Reports
With the progression of many shale gas wells in the Sichuan-Chongqing region of China into the middle and late stages of exploitation, the problem of sand production in these wells is a primary factor influencing production. Failure to implement measures
Zhiliang Wang, Zhigang Fang, Zhensong Wang, Manlai Zhang, Ruiquan Liao   +4 more
doaj   +2 more sources

Urban Drainage Water Quality Modeling on the SWMM Software, Northeastern Sector, Santa Inés District, Tunja

Tecnura, 2022
Objective: This research aimed to design a drainage quality hydrodynamic model of the northeastern sector of Tunja (Santa Inés neighborhood), Boyacá, Colombia, which was validated and calibrated by means of the mean square error method, where a ...
Melquisedec Cortes Zambrano, Mónica Yineth Lara-Pérez, Iván Darío Acosta-Sabogal   +2 more
doaj   +1 more source

Simulation on a new reverse circulation fishing tool: Design and evaluation of the salvage capacity and efficiency

Energy Science & Engineering, 2023
To solve the insufficient energy for reverse circulation fishing tools in complex structure wells, it is necessary to further optimize the design of the tools to improve the impurity salvage efficiency.
Yumei Li, Na Si, Tao Zhang, Ming Liu, Liwei Yu, Yiming Zheng   +5 more
doaj   +1 more source

An experimental study of acid gas absorption by method hybrid nanofluid spraying in the presence of continuous and alternating magnetic fields

Journal of Materials Research and Technology, 2021
To extract carbon dioxide from the air stream, a venture detergent on a semi-industrial scale was used in this article. The effects of various parameters, such as the inlet air flow to the Venture detergent, the solvent flow, the effect of the form of ...
Reza Azimikia, Hossein Mazaheri, Ali Hassani Joshaghani, Ezatollah Joudaki   +3 more
doaj   +1 more source

Vertical Flow Constructed Wetland Design for Domestic Wastewater Treatment for Communal Scale in DKI Jakarta Environmental Service Dormitory

Reaktor, 2023
To better manage Jakarta's domestic wastewater, the DKI Jakarta Provincial Government commissioned the construction of Domestic Wastewater Treatment Plants (WWTP) in multiple locations across the city.
Giovanni Ruly Putra, Betanti Ridhosari, Evi Siti Sofiyah, Nurulbaiti Listyendah Zahra, Ariyanti Sarwono, I Wayan Koko Suryawan   +5 more
doaj   +1 more source

Impact of flow on woodchip properties and subsidence in denitrifying bioreactors

Agrosystems, Geosciences & Environment, 2021
Woodchip bioreactors are edge‐of‐field practices that remove nutrients from agricultural drainage water, with an effective lifespan estimated between 10 and 30 yr.
Abby Schaefer, Kyle Werning, Natasha Hoover, Ulrike Tschirner, Gary Feyereisen, Thomas B. Moorman, Adina C. Howe, Michelle L. Soupir   +7 more
doaj   +1 more source

Development of the drilling mud composition for directional wellbore drilling considering rheological parameters of the fluid

Записки Горного института, 2020
Article presents investigations on the development of a drilling mud composition for directional wells in an oil field located in the Republic of Tatarstan (Russia).
Nadezhda M. Ulyasheva, Ekaterina L. Leusheva, Ramil N. Galishin   +2 more
doaj   +1 more source

Fluid simulation in a cyclone reverse circulation well washing device based on computational fluid dynamics

Energy Science & Engineering, 2019
This paper instructs the working principle of the well washing device and its parameter optimization in practical applications. A fluent fluid engineering simulation software was used to establish the calculation model of the bottom flow field. The fluid
Chun Sheng Wang, Lei Zhang
doaj   +1 more source