Three Phase Oil-Water-Gas Horizontal Co-Current Flow

2005 ◽  
Vol 83 (4) ◽  
pp. 401-411 ◽  
Author(s):  
P.L. Spedding ◽  
G.F. Donnelly ◽  
J.S. Cole
Keyword(s):  
Current Flow ◽  
Three Phase ◽  
Oil Water ◽  
Water Gas

Pressure drop in three-phase oil-water-gas horizontal co-current flow: experimental data and development of prediction models

2008 ◽  
Vol 3 (5) ◽  
pp. 531-543 ◽  
Author(s):  
P. L. Spedding ◽  
Adrian Murphy ◽  
G. F. Donnelly ◽  
E. Benard ◽  
A. P. Doherty
Keyword(s):  
Experimental Data ◽  
Pressure Drop ◽  
Current Flow ◽  
Prediction Models ◽  
Three Phase ◽  
Oil Water ◽  
Water Gas

Application of Wavelet Analysis for Online Measurement of Crude Oils

2005 ◽  
Vol 295-296 ◽  
pp. 417-422
Author(s):  
X. Li ◽  
Z.L. Ding ◽  
F. Yuan
Keyword(s):  
Wavelet Analysis ◽  
Frequency Domain ◽  
Gas Flow ◽  
Lms Algorithm ◽  
Crude Oils ◽  
Online Measurement ◽  
Oil Pipeline ◽  
Three Phase ◽  
Oil Water ◽  
Water Gas

The correlation method had once been considered as one of the best methods for the measurement of multiphase flow. However, if the behavior of flow does not fit the ergodic random process, the measured cross correlation plot will have a gross distortion when the different components of flow do not pervade within one another to the full extent. We measured a variety of parameters of three phase oil/water/gas flow in an oil pipeline. The change of flow pattern is so complex that the measured signals are always contaminated by stochastic noises. The weak signals are very easily covered by the noise so that it will result in great deviation. Wavelet transformation is an analytical method of both time and frequency domain. The method can achieve signal decomposition and location in time and frequency domain through adjustment and translation of scale. An LMS algorithm in wavelet transform is studied for denoising the signals based on the use of a novel smart capacitive sensor to measure three phase oil/water/gas flow in oil pipeline. The results of simulation and data processing by MATLAB reveal that wavelet analysis has better denoising effects for online measurement of crude oils with high measurement precision and a wide application range.

Analysis of Oil-Water-Gas Three-Phase Flow in a Curved Leaking Pipe

2016 ◽  
Vol 366 ◽  
pp. 144-150
Author(s):  
Boniek Evangelista Leite ◽  
Severino Rodrigues de Farias Neto ◽  
Antonio Gilson Barbosa de Lima ◽  
Lígia Rafaely Barbosa Sarmento
Keyword(s):  
Continuous Phase ◽  
Environmental Damage ◽  
Particle Model ◽  
Phase Flow ◽  
Curved Pipe ◽  
Three Phase ◽  
Three Phase Flow ◽  
Oil Water ◽  
Object Of Study ◽  
Water Gas

The onshore and offshore production of oil and natural gas is characterized by the multiphase flow in ducts and pipes, which are interconnected by various equipments such as wellhead, pumps, compressors, processing platforms, among others. The transport of oil and oil products is essential to the viability of the sector, but is susceptible to failures, that can cause great environmental damage. Considering this necessity of the transportation sector of oil and derivatives, leakage in pipelines with curved connections, are the object of study for various researchers. In this sense, this work contributes to the study of three-phase flow (oil-water-gas) in a curved pipe (90°) using Computational Fluid Dynamics. The physical domain is constituted by two tubes of 4 meters trenched by a 90° curve, with the poring whole in the curvated accessory. The mathematical model is based on a particle model, where the oil is considered as a continuous phase and the water and gas as a particulate phase. The SST (Shear Stress Transport) turbulence model was adopted. All simulations were carried out using the Ansys CFX® 12.1 commercial code. Results of the pressure, velocity and volumetric fraction of the phases are presented and discussed.

Experimental Study of High-Viscosity Oil/Water/Gas Three-Phase Flow in Horizontal and Upward Vertical Pipes

2013 ◽  
Vol 28 (03) ◽  
pp. 306-316 ◽  
Author(s):  
Shufan Wang ◽  
Hong-Quan Zhang ◽  
Cem Sarica ◽  
Eduardo Pereyra
Keyword(s):  
Experimental Study ◽  
High Viscosity ◽  
Phase Flow ◽  
Three Phase ◽  
Three Phase Flow ◽  
Oil Water ◽  
High Viscosity Oil ◽  
Water Gas

Removal of Water or Solids in Oil/Water, Gas/Solid and Gas/Liquid/Solid Pipelines Using Compact Inline Separator

2004 ◽  
Author(s):  
Parimal P. More ◽  
Cheolho Kang ◽  
William Paul Jepson
Keyword(s):  
Oil And Gas ◽  
Large Diameter ◽  
Cost Effective ◽  
Two Phase ◽  
Stage Separation ◽  
Three Phase ◽  
Scale Test ◽  
Oil Water ◽  
Water Pipeline ◽  
Water Gas

Traditionally separators that are used for separation purposes in oil and gas industries are often bulky in size and incur high operating costs. Latest research has led to the development of a novel and compact inline separator, which is even cost effective. This paper exhibits the efficiency of the inline separator determined for two-phase and three-phase separation in multiphase pipelines. Laboratory tests were carried out to remove sand and water using large diameter, industrial-scale test facilities. For the removal of water in oil/water pipeline, separation tests were carried out with liquid velocities ranging from 0.5 ∼ 2 m/s with 10, 50 and 90% water cuts. At first stage, effectiveness in excess of 90% was attained in each of the water cuts. In second stage separation, an effectiveness of 95% was achieved. For the removal of sand in sand/gas pipeline, gas velocities varying from 4 to 14 m/s were investigated. Here, the amount of sand collected after the separation was 99.9% of the total volume inserted into the system before separation. Separation tests for three phases, gas/liquid/sand were also carried out with string of superficial gas velocities of 4 to 10 m/s and superficial liquid velocities of 0.5 to 1.5 m/s. In this case, effectiveness of around 99% was obtained. Thus it can be concluded that the innovative, inline separation system can effectively remove sand and water and reduces or eliminates the risk of corrosion/erosion problems.

scholarly journals The Flow Pattern Transition and Water Holdup of Gas–Liquid Flow in the Horizontal and Vertical Sections of a Continuous Transportation Pipe

Water ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2077
Author(s):  
Guishan Ren ◽  
Dangke Ge ◽  
Peng Li ◽  
Xuemei Chen ◽  
Xuhui Zhang ◽  
...  
Keyword(s):  
Experimental Data ◽  
Flow Pattern ◽  
Liquid Mixture ◽  
Vertical Section ◽  
Flow Patterns ◽  
Phase Flow ◽  
Three Phase ◽  
Three Phase Flow ◽  
Oil Water ◽  
Water Gas

A series of experiments were conducted to investigate the flow pattern transitions and water holdup during oil–water–gas three-phase flow considering both a horizontal section and a vertical section of a transportation pipe simultaneously. The flowing media were white mineral oil, distilled water, and air. Dimensionless numbers controlling the multiphase flow were deduced to understand the scaling law of the flow process. The oil–water–gas three-phase flow was simplified as the two-phase flow of a gas and liquid mixture. Based on the experimental data, flow pattern maps were constructed in terms of the Reynolds number and the ratio of the superficial velocity of the gas to that of the liquid mixture for different Froude numbers. The original contributions of this work are that the relationship between the transient water holdup and the changes of the flow patterns in a transportation pipe with horizontal and vertical sections is established, providing a basis for judging the flow patterns in pipes in engineering practice. A dimensionless power-law correlation for the water holdup in the vertical section is presented based on the experimental data. The correlation can provide theoretical support for the design of oil and gas transport pipelines in industrial applications.

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