Results 151 to 160 of about 203,865 (198)

Water layer height measurement in oil-water two-phase flows

AIP Conference Proceedings, 2012
Water layer height was measured by a single-wire capacitance probe in horizontal oil-water two-phase flows. The viscosity of oil was up to 140 mPa·s to simulate the actual flow in oil production logging. Typical water-layer-height curves with time were obtained when water was continuous. The accuracy was estimated by a quick-closing valve (QCV) system.
S.-F. Huang, J. Lu, B. D. Zhang, D. Wang
openaire   +1 more source

Physics-informed radial basis function neural network for efficiently modeling oil–water two-phase Darcy flow

The Physics of Fluids
Physics-informed neural networks (PINNs) improve the accuracy and generalization ability of prediction by introducing physical constraints in the training process.
Shuaijun Lv, Daolun Li, Wen-shu Zha, Yan Xing   +3 more
semanticscholar   +1 more source

An investigation of oil–water two-phase flow instability using multivariate multi-scale weighted permutation entropy

Physica A: Statistical Mechanics and its Applications, 2019
The present study is devoted to the investigation of oil–water two-phase flow instability using multivariate multi-scale weighted permutation entropy (MWMPE).
Yunfeng Han, N. Jin, L. Zhai, Ren Yingyu, He Yuansheng   +4 more
semanticscholar   +1 more source

A Unified Model of Oil/Water Two-Phase Flow in the Horizontal Wellbore

SPE Journal, 2016
Summary In this article, a more-general flow-pattern classification of oil/water two-phase flow in the horizontal wellbore is proposed first according to the theoretical analysis and previous research achievements, on the basis of which a simplification is then performed through reasonable incorporation, and the ultimate flow patterns ...
Zhiming Wang, Quan Zhang, Quanshu Zeng, Jianguang Wei   +3 more
openaire   +1 more source

Measurement of velocity of sand-containing Oil–Water two-phase flow with super high water holdup in horizontal small pipe based on thermal tracers

Flow Measurement and Instrumentation, 2019
When oil fields enter the last production period, the water holdup in the well is extremely high. Chemical flooding and horizontal well technology are often used to enhance oil recovery.
Lianfu Han, Yudong Hou, Yanjun Wang, Xingbin Liu, Jian Han, Xie Ronghua, H. Mu, C. Fu   +7 more
semanticscholar   +1 more source

Characterization of oil/water two-phase flow based on complexity theory

Proceedings of 2004 International Conference on Machine Learning and Cybernetics (IEEE Cat. No.04EX826), 2005
The flow patterns of oil/water two-phase flow in vertical upward pipes have been characterized by the analysis of LZ complexity and fluctuation complexity measures using the conductance time series fluctuating signals. It is shown that both complexity measures have little changes with oil-in-water flow pattern variations for flow conditions of 61%/spl ...
null Shu Zhao, null Ning-De Jin, null Miao Hai, null Xing-Bin Liu   +3 more
openaire   +1 more source

Experimental investigation of oil drops behavior in dispersed oil-water two-phase flow within a centrifugal pump impeller

Experimental Thermal and Fluid Science, 2019
In oil production, one important artificial lift method involves the commonly used centrifugal pump. The use of this pump in the petroleum industry, however, is hindered by some unfavorable operational conditions. Operating centrifugal pumps with gas and
R. Perissinotto, W. Monte Verde, M. Castro, J. L. Biazussi, V. Estevam, A. Bannwart   +5 more
semanticscholar   +1 more source

Complex network analysis in inclined oil–water two-phase flow

Chinese Physics B, 2009
Complex networks have established themselves in recent years as being particularly suitable and flexible for representing and modelling many complex natural and artificial systems. Oil–water two-phase flow is one of the most complex systems. In this paper, we use complex networks to study the inclined oil–water two-phase flow.
Gao Zhong-Ke, Jin Ning-De
openaire   +1 more source

Pressure Drop for Oil-Water Two-phase Flow in Horizontal Pipe

AIP Conference Proceedings, 2010
Pressure drops were measured during the co‐current flow of a mechanical oil and tap water in 40 mm inner diameter horizontal test section made from organic glass. Measurements is conducted were made for the oil superficial velocity ranges from 0.04 to 1.2 m/s and the water superficial velocity from 0.04 to 2.2 m/s.
W. H. Liu, L. J. Guo, Liejin Guo, D. D. Joseph, Y. Matsumoto, Y. Sommerfeld, Yueshe Wang   +6 more
openaire   +1 more source

Slip property of oil-water two phase flow in horizontal pipe

2010 The 2nd International Conference on Computer and Automation Engineering (ICCAE), 2010
Normall, it is very difficult to measurement oil volume fraction under low oil volume fraction in multi phase flow measurement, in this study, Slip property of oil-water two phase flow in horizontal pipe under low oil volume fraction was investigated though a Coriolis Mass Flowmeter, the difference of water cut and water hold up was analyzed with ...
null Cao Suosheng, null Fang Lide, null Jiang Qingyong   +2 more
openaire   +1 more source