Results 11 to 20 of about 1,218,195 (264)
Viscoelastic-thixotropic properties of gelled waxy crude oil
You-qi chuyun, 2020 The earlier thixotropic model of waxy crude oil was basically a viscoplastic model, in which the contribution of viscoelasticity was not considered, and the influence of viscoelasticity was not taken into account in the numerical simulation of pipeline ...
Liping GUO, Qiufang XU, Yang LIU
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Advances in Mechanical Engineering, 2020 To realize the safe and economic operation of a waxy crude oil pipeline, a thermal–hydraulic model in an unsteady state was established for the restart process of waxy crude oil.
Qinglin Cheng +5 more
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Case Studies in Thermal Engineering, 2020 By means of momentum source term method and additional specific heat capacity method, the thermal characteristics of waxy crude oil pipeline during its shutdown are investigated by the numerical simulation. The quantitative effects of crude oil viscosity,
Jian Zhao +4 more
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An Experimental Study on Evaluation of Factors Influencing the Viscosity and Viscoelastic Properties of Waxy Crude Oil [PDF]
Iranian Journal of Oil & Gas Science and Technology, 2020 The influences of several operating factors on the viscosity of the Isfahan refinery waxy crude oil sample are studied through conducting some rheological shear rotational tests.
Yavar Karimi, Ali Reza Solaimany Nazar
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Effect of a rapeseed oil derived pour point depressant on the flow properties of the waxy oil from Changqing Oilfield [PDF]
E3S Web of Conferences, 2021 In this paper, rapeseed oil was modified with diethylenetriamine to obtain a vegetable oil-derived pour point depressant (PPD), which was used to reduce the pour point and improve the flowability of the crude oil (from Changqing Oilfield), which has a ...
Wang Yongzhen +8 more
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Study on influence of flow rates on voids in waxy crude oil subjected to dynamic and static cooling [PDF]
Journal of Mechanical Engineering and Sciences, 2015 The assumption of constant yield stress in the conventional restart pressure equation neglects the effects of thermal shrinkage and gas voids formation, which in turn resulted in an over-designed production piping systems.
Girma T. Chala +3 more
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Foods, 2023 The physicochemical, structural and functional properties of proso millet protein from waxy and non-waxy proso millet were investigated. The secondary structures of proso millet proteins consisted mainly of a β-sheet and ɑ-helix.
Jing Ren +5 more
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Reference on mechanical behavior of soft matter for rheological research of waxy crude oil
You-qi chuyun, 2021 Soft matter is something between the ideal solid and liquid. For the gelled waxy crude oil has the specific and complicated mechanical behavior of the soft matters, learning from the rheological research methods for soft matters is an efficient approach ...
Hongfei LIU, Hongying LI, Jingjun ZHANG
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Rheological Investigation on the Effect of Shear and Time Dependent Behavior of Waxy Crude Oil
MATEC Web of Conferences, 2014 Rheological measurements are essential in transporting crude oil, especially for waxy crude oil. Several rheological measurements have been conducted to determine various rheological properties of waxy crude oil including the viscosity, yield strength ...
Japper-Jaafar A. +3 more
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Measurement and Prediction of Time-independent and Time-dependent Rheological Behavior of Waxy Crude Oil [PDF]
Iranian Journal of Oil & Gas Science and Technology, 2017 Wax deposition phenomenon changes the rheological behavior of waxy crude oil completely. In the current work, the rheological time-dependent and time-independent behaviors of waxy crude oil samples are studied and flow curve and compliance function are ...
Yavar Karimi, Ali Reza Solaimany Nazar
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