Results 21 to 30 of about 162,915 (162)

Study of Displacement Characteristics of Fire Flooding in Different Viscosity Heavy Oil Reservoirs

Geofluids, 2021
A field test in the Xinjiang oilfield in China shows that the viscosity of heavy oil has a certain influence on the combustion dynamics and injection-production performance of fire flooding.
Bingyan Liu, Jinzhong Liang, Fang Zhao, Tong Liu, Zongyao Qi, Fengchao Liu, Pengcheng Liu   +6 more
doaj   +1 more source

Fine Characterization of Nonmain Oil Layer Distributions in Complex Fault Block Oilfield and Its Development Model

Geofluids
Improving the oil production from nonmain oil layers is crucial for the complex fault block oilfields during the late stage of high water cut development to ensure stable production and capacity expansion.
Lei Xu, Xiutian Yao, Sen Yan, Zhang Wen, Jimei Xue   +4 more
doaj   +1 more source

Experimental Investigation of Oil Recovery from Tight Sandstone Oil Reservoirs by Pressure Depletion

Energies, 2018
Oil production by natural energy of the reservoir is usually the first choice for oil reservoir development. Conversely, to effectively develop tight oil reservoir is challenging due to its ultra-low formation permeability.
Wenxiang Chen, Zubo Zhang, Qingjie Liu, Xu Chen, Prince Opoku Appau, Fuyong Wang   +5 more
doaj   +1 more source

Experimental study of flow friction behavior in coiled tubing

Energy Reports, 2022
Coiled tubing (CT) technology has been widely applied in well cleanouts, drilling plug, and shale oil and gas fracturing. Fluid flow in CT produce a more significant flow friction pressure loss because of the long length and small tubing diameter coiled ...
Shihui Sun, Jiahao Liu, Ruili Sang, Kang Zhao   +3 more
doaj   +1 more source

An improved viscosity model for CO2-crude system

Petroleum Exploration and Development, 2014
The existing viscosity models, including LBC (Lohrenz-Bray-Clark) Model, CS (Pedersen) Model and PR (based on PR Equation of State) Model, could not take into account accuracy, theory strictness and calculation convenience simultaneously.
Liming LIAN, Jishun QIN, Siyu YANG, Yongzhi YANG, Shi LI, Xinglong CHEN   +5 more
doaj   +1 more source

Experimental Study on Enhanced Oil Recovery of PPG/ASP Heterogeneous System after Polymer Flooding

Gels, 2023
Following the application of polymer flooding in Daqing Oilfield, the heterogeneity between different layers has intensified, resulting in the formation of more favorable seepage channels and cross-flow of displacement fluids.
Yanfu Pi, Zailai Su, Ruibo Cao, Bo Li, Jinxin Liu, Xinyu Fan, Mingjia Zhao   +6 more
doaj   +1 more source

An improved vdW-type component mixing-rule applied in CO2-crude system

Petroleum Exploration and Development, 2016
A new vdW-type mixing-rule has been proposed considering the interaction among the affecting factors of temperature, pressure and non-hydrocarbon components, through analysis of equation of state and theory of interaction among molecules.
Siyu YANG, Liming LIAN, Shi LI, Yongzhi YANG, Xinglong CHEN   +4 more
doaj   +1 more source

Recovery rates, enhanced oil recovery and technological limits [PDF]

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014
Enhanced oil recovery (EOR) techniques can significantly extend global oil reserves once oil prices are high enough to make these techniques economic. Given a broad consensus that we have entered a period of supply constraints, operators can at last plan on the assumption that the oil price is likely to remain relatively high.
Muggeridge, A, Cockin, A, Webb, K, Frampton, H, Collins, I, Moulds, T, Salino, P   +6 more
openaire   +4 more sources

Deep mobile profile control agent for iron-containing reservoirs prior to salinity-based ternary flooding

Scientific Reports
To mitigate problems such as ​​injection water channeling, abrupt water breakthrough, rapid decline in oil production accompanied by an abrupt rise in water cut, and poor mobilization of matrix oil that commonly arise in low-permeability fractured ...
Shize Yin, Guangsheng Cao, Yuxin Lin, Tairan He   +3 more
doaj   +1 more source

The effect of temperature on pyrolysis products during oil shale thermal decomposition

Scientific Reports
This study systematically investigates the effect of temperature on product distribution and reaction mechanisms during the pyrolysis of oil shale through thermogravimetric analysis (TG) and fixed-bed pyrolysis experiments.
Fajun Zhao, Zian Yang, Lei Zhang, Changjiang Zhang, Tianyu Wang, Hong Zhang   +5 more
doaj   +1 more source