Results 1 to 10 of about 189,698 (204)

Permeability prediction using hydraulic flow units and electrofacies analysis

open access: yesEnergy Geoscience, 2020
It is essential to characterize fluid flow in porous media to have a better understanding of petrophysical properties. Many approaches were developed to determine reservoir permeability among which the integrated analysis of hydraulic flow unit (HFU) and
Amanat Ali Bhatti   +6 more
doaj   +5 more sources

Application of hydraulic flow units’ approach for improving reservoir characterization and predicting permeability [PDF]

open access: yesJournal of Petroleum Exploration and Production Technology, 2019
It is highly essential to characterize the reservoir accurately as possible to implement enhanced oil recovery and development scenarios. Determining complex variations in pore geometry aids in identifying rock types with similar fluid flow properties ...
Mostafa Khalid   +4 more
doaj   +5 more sources

Bayesian optimization of capillary pressure data in hydraulic flow units using NMR [PDF]

open access: yesScientific Reports
Nuclear magnetic resonance (NMR) data provides a comprehensive picture of the petrophysical description of a reservoir through effective characterization of fluid-rock properties. However, estimating the correct capillary pressure curves from NMR T2 data
Hasan Jehanzaib   +4 more
doaj   +4 more sources

Determination of Reservoir Hydraulic Flow Units and Permeability Estimation Using Flow Zone Indicator Method

open access: yesIraqi Journal of Chemical and Petroleum Engineering, 2023
   Reservoir characterization plays a crucial role in comprehending the distribution of formation properties and fluids within heterogeneous reservoirs. This knowledge is instrumental in constructing an accurate three-dimensional model of the reservoir,
Alyaa M. Ali, Ayad A. Alhaleem
doaj   +2 more sources

Assessing reservoir heterogeneity using the turbulence factor as an effective tool for hydraulic flow unit classification for BM-85 Well, Gulf of Suez, Egypt [PDF]

open access: yesScientific Reports
Reservoir heterogeneity is crucial for predicting fluid flow behavior and improving hydrocarbon recovery in mature and complex reservoirs. This study investigates the heterogeneity of the Lower Senonian Formation in the BM-85 well, Gulf of Suez, Egypt ...
Ibrahim M. Al-Alfy   +3 more
doaj   +2 more sources

Research on the Flow-Induced Stress Characteristics of Head-Cover Bolts of a Pump-Turbine during Turbine Start-Up

open access: yesEnergies, 2022
Nowadays, pump-turbine units have to experience multiple start-stops every day to balance the power production and consumption on the grid. During the transient process of turbine start-up, the hydraulic forces applied to the head-cover would change ...
Zhengwei Wang   +5 more
doaj   +1 more source

Analysis of and Experimental Research on a Hydraulic Traction System Based on a Digital Hydraulic Transformer

open access: yesSensors, 2022
In this study, we designed a new type of digital hydraulic transformer using four gear–pump/motor units with a displacement ratio of 20:21:22:23 and two control valve groups that consist of four solenoid directional valves. The driving gear shafts of the
Weijian Li   +5 more
doaj   +1 more source

Research on control system for improving the grid-connected efficiency of small hydropower

open access: yesEnergy Reports, 2023
Aiming at the problem of low efficiency at low flow in small hydropower stations, a permanent magnet direct-drive hydropower generation control system based on dual PWM converters is proposed to realize wide-range variable-speed constant-frequency ...
Xingyang Hu   +4 more
doaj   +1 more source

Irrigation pumping stations according to the hydraulic and operational indicators of pumping units [PDF]

open access: yesE3S Web of Conferences, 2021
The paper presents the conditions and the degree of reduction of water supply and pressure of pumping stations (PS) depending on the hydraulic resistance of the water-supply channels and structures of the PS and other various factors.
Mamajanov Makhmudjon   +5 more
doaj   +1 more source

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