Results 21 to 30 of about 5,017,200 (165)

A New Method of Geological Modeling for the Hydrocarbon Secondary Migration Research

Applied Sciences
Reservoir geological modeling plays a crucial role in characterizing the spatial distribution and heterogeneity of subsurface reservoirs. The exploration of deep oil and gas resources is not only a global trend in the oil industry but also an inevitable ...
Yong Zhang, Chao Li, Jun Li, Xiaorong Luo, Ming Cheng, Xiaoying Zhang, Bin Lu   +6 more
doaj   +1 more source

Comparing the effects of temperature and C/N ratios on denitrification between point bar and straight channel sediments

Journal of Freshwater Ecology
The riverbed and riparian zone are the hotspots of nitrogen removal in rivers. Denitrification plays an important role in the process of nitrogen removal.
Ying Liu, Weiping Jiang, Jingwen Xiao, Yuling Huang, Jinghong Feng, Ziyan Lu   +5 more
doaj   +1 more source

Two new types of sandbars in channels of the modern Ganjiang Delta, Poyang Lake, China: Depositional characteristics and origin

Journal of Palaeogeography, 2017
Two new types of sandbars are found in distributary channels of the modern Ganjiang Delta, Poyang Lake, China, respectively named as branching-point bar (BPB) and merging-point bar (MPB).
Zhen-Kui Jin, Bai-Shui Gao, Jin-Yi Wang, Yan Li, Liang Shi, Kuan-Hong Yu, Gui-Zai Li   +6 more
doaj   +1 more source

Influence of point bar on solute transportation in hyporheic zone within riparian zone with stratified structure

Shui kexue jinzhan
This study investigated the effect of point bar on solute transport in the hyporheic zone within a riparian zone (HZRZ) which had a stratified structure. Using a two-way flow riparian zone model，ten experimental groups were analysed.
Chuanbin DOU, Jihong XIA, Jie WEI, Jiayi ZU, Yue WANG, Qingsheng CHEN, Mengzhuo YANG   +6 more
doaj   +1 more source

Lithofacies Characteristics of Point Bars and Their Control on Incremental Oil Recovery Distribution During Surfactant–Polymer Flooding: A Case Study from the Gudao Oilfield

Energies
Meandering river point bar sand bodies, serving as critical reservoir units, exhibit significant lithofacies heterogeneity that governs remaining oil distribution patterns.
Xilei Liu, Changchun Guo, Qi Chen, Minghao Zhao, Yuming Liu   +4 more
doaj   +1 more source

Synthesis Theory and Optimum Design of Four-bar Linkage with Given Angle Parameters [PDF]

Mechanical Sciences, 2019
In this paper, a synthesis method is proposed for the 5-point-contact four-bar linkage that approximates a straight line with given angle parameters. The given parameters were the angles and the location of the Ball point.
L. Yin, L. Huang, J. Huang, P. Xu, X. Peng, P. Zhang, P. Zhang   +6 more
doaj   +1 more source

Fatigue performance of basalt fibre-reinforced polymer bar-reinforced sea sand concrete slabs

Journal of Materials Research and Technology, 2023
Combining both Fibre-reinforced polymer (FRP) and sea sand concrete (SSC), the new composite structure of FRP bar-reinforced SSC can not only solve the issue related to reinforcement corrosion but also alleviate the problem of river sand shortage.
Guanghao Mai, Lijuan Li, Xiaopan Chen, Zhe Xiong, Junping Liang, Xiaozhou Zou, Yu Qiu, Sihua Qiao, Dong Liang, Feng Liu   +9 more
doaj   +1 more source

Ductility and Buckling Behaviour of Point‐by‐Point Wire Arc Additively Manufactured Steel Bars

ce/papers, 2022
AbstractThe wire arc additive manufacturing (WAAM) technology in combination with computational design shows a big potential for realising novel force‐flow optimised and material‐efficient connections. This contribution deals with point‐by‐point WAAM, a material deposition strategy that allows to place material precisely where structurally needed or ...
Silvestru, Vlad-Alexandru; id_orcid0000-0002-4768-4388, Ariza, Inés, Taras, Andreas   +2 more
openaire   +2 more sources

Research on meandering river reservoir deposition architecture and 3D modeling of the Gudao Oil field in the Bohai Bay Basin

Journal of Petroleum Exploration and Production Technology, 2017
The distribution of remaining oil is controlled by internal sand body heterogeneity in the middle and late stages of oil field development. Reservoir architecture analysis has been conducted in the third sand group in the Guantao Formation of the Gudao ...
Junwei Zhao, Huaimin Xu, Gongyang Chen, Cui He, Dali Yue, Shenghe Wu, Lifeng Wen   +6 more
doaj   +1 more source

The influence of a vegetated bar on channel-bend flow dynamics [PDF]

Earth Surface Dynamics, 2018
Point bars influence hydraulics, morphodynamics, and channel geometry in alluvial rivers. Woody riparian vegetation often establishes on point bars and may cause changes in channel-bend hydraulics as a function of vegetation density, morphology, and ...
S. Bywater-Reyes, S. Bywater-Reyes, R. M. Diehl, A. C. Wilcox   +3 more
doaj   +1 more source