Results 31 to 40 of about 1,391,739 (293)

Fractal scaling in crude oil price evolution via Time Series Analysis (TSA) of historical data [PDF]

, 2009
This paper presents historical price data for two different crude oil types and examines the stationarity and inherent structure in oil price variation, applying many degrees of time resolution.
Gerogiorgis, Dimitrios I
core   +1 more source

Crude-Oil-Repellent Membranes by Atomic Layer Deposition: Oxide Interface Engineering

, 2018
Crude oil fouling on membrane surfaces is a persistent, crippling challenge in oil spill remediation and oilfield wastewater treatment. In this research, we present how a nanosized oxide coating can profoundly affect the anti-crude-oil property of ...
Subramanian K. R. S. Sankaranarayanan (5175344), Seth B. Darling (1480144), Hao-Cheng Yang (1591390), Lin Chen (54305), Badri Narayanan (2830499), Henry Chan (1544731), Yunsong Xie (5641424), Jeffrey W. Elam (1289241), Ruben Z. Waldman (5641427)   +8 more
core   +6 more sources

Crude Oil Hedging Strategies Using Dynamic Multivariate GARCH [PDF]

The paper examines the performance of four multivariate volatility models, namely CCC, VARMA-GARCH, DCC and BEKK, for the crude oil spot and futures returns of two major benchmark international crude oil markets, Brent and WTI, to calculate optimal ...
Tansuchat, R., McAleer, M.J., Chang, C-L.   +2 more
core   +4 more sources

Determination of critical scour stripping conditions for tank bottom deposits during pipeline transportation

You-qi chuyun, 2023
Waxy crude oil stored in the tank for a long time will form tank bottom sediment. The settling of tank bottom deposits in oil flow during the pipeline transportation of waxy crude oil will reduce the pipeline transportation capacity, and even block the ...
YANG Ming, LI Jian, LI Longdong, XIE Ping, ZHANG Xun, WANG Yijie, LIU Yamei, HUANG Qiyu   +7 more
doaj   +1 more source

Slurries and emulsions of waxy and heavy crude oils for pipeline transportation of crude oil

Colloids and Surfaces, 1988
Abstract The high viscosity of many asphaltic crude oils and the high pour points of many waxy crude oils present significant problems in their transportation over long distances by pipeline and tanker. While heating the oils and insulating the pipelines will help alleviate the problem, there is danger associated with an extended shutdown of flow and
S.S. Marsden, Kiyoshi Ishimoto, Lidian Chen   +2 more
openaire   +1 more source

CHARACTERIZATION AND EVALUATION OF WAXY CRUDE OIL FLOW [PDF]

Brazilian Journal of Chemical Engineering, 2016
Abstract - Part of the oil found in the Brazilian subsoil has a high wax content, which makes its flow process difficult at low temperatures because of the increase in the viscosity of the fluid. This paper studied the flow behavior of waxy crude oil under variation in the temperature of the external environment of the flow, the volumetric flow rate of
Tarantino, G. B., Vieira, L. C., Pinheiro, S. B., Mattedi, S., Santos, L. C. L., Pires, C. A. M., Góis, L. M. N., Santos, P. C. S.   +7 more
openaire   +3 more sources

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

Advanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke, Hattie R. Chisnall, Jesus Vazquez Chavez, Ana B. Jorge Sobrido   +3 more
wiley   +1 more source

Wall sticking behavior and adhesion theory of oil in low-temperature gathering and transportation by pipeline

You-qi chuyun, 2022
In order to further explore the influencing factors and formation mechanism of wall sticking behavior of waxy crude oil at high water content in low-temperature gathering and transportation, the effects of water content, pipe flow shear force and wax ...
LI Xiaolong, HAN Wenchao, CHEN Gaolei, YANG Ming, HU Chunping, SHI Hao, HUANG Qiyu, LYU Yang   +7 more
doaj   +1 more source

Waxy Crude Oils: Some Aspects of their Dynamics

Mathematical Models and Methods in Applied Sciences, 1997
Waxy crude oils are highly non-Newtonian fluids known to cause pipelining difficulties because their rheological properties are strongly affected by paraffin crystallization. On the basis of experimental data, a physical model has been developed to describe the behavior of these crudes. The corresponding mathematical problem has been studied in planar
openaire   +2 more sources

Two phase of waxy crude oil-water in horizontal pipes [PDF]

, 2014
Water produced along with the crude oil during production and transported together in a pipeline is a common occurrence in a petroleum production system.
Ismail, Ahmad Shamsul Izwan
core