Time-Dependent Compressibility of Crude Oil in Gelled State Measured by a New Apparatus

SPE Journal ◽  
2020 ◽  
Vol 25 (06) ◽  
pp. 3200-3216
Author(s):  
Lei Chen ◽  
Jinghua Ding ◽  
Junjie Gao ◽  
Shuyi Ren ◽  
Jingyang Gao ◽  
...  
Keyword(s):  
Crude Oil ◽  
Newtonian Fluid ◽  
Basic Property ◽  
Pipe Flow ◽  
Time Dependent ◽  
Seal Ring ◽  
Flow Process ◽  
Elastic Film ◽  
New Apparatus ◽  
Ring Deformation

Summary Compressibility is a basic property of gelled crude oil, which was always regarded as a constant in the unsteady-pipe-flow process. In this article, the compressibility of gelled crude oil was accurately measured, and some new characteristics were discovered by a new apparatus that was developed using a special sealing method consisting of an elastic film and the Newtonian fluid. There was no leakage in the special hermetical method, and the unexpected seal-ring deformation of the piston in the traditional compression apparatus was also well-avoided. Using the new apparatus, compressibility of the gelled crude oil was tested and it was found that the compressibility of gelled crude oil is strongly time dependent.

Time Dependent Thermal Blooming In Axial Pipe Flow

1983 ◽  
Author(s):  
A. Gavrielides ◽  
P. Peterson
Keyword(s):  
Pipe Flow ◽  
Time Dependent ◽  
Thermal Blooming

Pipe Flow Measurements of a Transparent Non-Newtonian Slurry

1989 ◽  
Vol 111 (3) ◽  
pp. 331-336 ◽  
Author(s):  
J. T. Park ◽  
R. J. Mannheimer ◽  
T. A. Grimley ◽  
T. B. Morrow
Keyword(s):  
Velocity Profile ◽  
Newtonian Fluid ◽  
Power Law ◽  
Pipe Flow ◽  
Large Scale ◽  
Longitudinal Velocity ◽  
Tangential Velocity ◽  
Turbulent Pipe Flow ◽  
Laser Doppler Velocimeter ◽  
Flow Measurements

An experimental description of the flow structure of non-Newtonian slurries in the laminar, transitional, and full turbulent pipe flow regimes is the primary objective of this research. Experiments were conducted in a large-scale pipe slurry flow facility with an inside pipe diameter of 51 mm. The transparent slurry formulated for these experiments from silica, mineral oil, and Stoddard solvent exhibited a yield-power-law behavior from concentric-cylinder viscometer measurements. The velocity profile for laminar flow from laser Doppler velocimeter (LDV) measurements had a central plug flow region, and it was in agreement with theory. The range of the transition region was narrower than that for a Newtonian fluid. The mean velocity profile for turbulent flow was close to a 1/7 power-law velocity profile. The rms longitudinal velocity profile was also similar to a classical turbulent pipe flow experiment for a Newtonian fluid; however, the rms tangential velocity profile was significantly different.

scholarly journals Klasifikasi dan Identifikasi Material terhadap Pengendapan Wax pada Sumur Minyak

2020 ◽  
Vol 2 (1) ◽  
pp. 031-049
Author(s):  
Aries Prasetyo ◽  
Sudono Sudono
Keyword(s):  
Crude Oil ◽  
Pour Point ◽  
Pipe Wall ◽  
Hot Water ◽  
Wax Deposition ◽  
Flow Process ◽  
Pipe Surface ◽  
Oil Flow ◽  
Wax Deposits

The problem in Indonesia, especially for piping problems are generally caused by blockages that interfere with the flow process, these blockages are formed due to the presence of scales or minerals deposited to the pipe wall. Scale formation is due to the alteration of the physical properties of the oil including pour point, viscosity or others. Many technological breakthroughs developed to overcome this problem are with the addition of hot water, the injection of chemical fluids dispersant into crude oil, which serves to lower the pour point of the crude oil that will be in production or use surfactant as inhibitors so that the inner pipe wall will be water wet which can prevent the occurrence of wax deposition on the pipe surface. In subsequent developments the researchers will review by replacing or adding pipe materials with certain materials that are able to inhibit the processing of wax deposits in the pipe walls. By classifying and identifying materials that are able to inhibit the formation of wax on the pipe, it is expected to estimate the design of the pipe string so as not to form wax deposits, such as predicting wax formed at the distance So that the material application can be optimal. Verification of data on tubing will result in supporting data for the determination of the crude oil flow rate with an Excel plot used to determine the rate of wax deposition in tubing. With some selected material is expected researchers are able to determine the best material to handle the problem of wax deposits.

Experimental Procedures of Characterizing the Viscoelastic Properties of Certain Materials

1999 ◽  
Author(s):  
V. Dakshina Murty
Keyword(s):  
Yield Stress ◽  
Newtonian Fluid ◽  
Material Properties ◽  
Viscoelastic Properties ◽  
Extrusion Process ◽  
Squeeze Flow ◽  
Generalized Newtonian Fluid ◽  
Flow Process ◽  
Bingham Plastic ◽  
Effects Of Temperature

Abstract Experimental procedures for characterizing the material properties of viscoelastic materials are proposed. The procedures described are based on extrusion process and squeeze flow process. The fundamental features within each of these procedures are discussed in detail. If the material is assumed to be either a generalized Newtonian fluid or Bingham plastic, the relevant parameters are the viscosity and yield stress. The results of the experiments on these two properties are shown along with the effects of temperature on the yield stress are discussed.

Flow Pattern Evolution With Time Mixing of Non-Newtonian Fluid in a Stirred Tank Using Particle Image Velocimetry

Volume 1 ◽  
2004 ◽  
Author(s):  
E. Fransolet ◽  
P. Marchot ◽  
D. Toye ◽  
M. Crine
Keyword(s):  
Aqueous Solution ◽  
Particle Image Velocimetry ◽  
Flow Pattern ◽  
Newtonian Fluid ◽  
Particle Image ◽  
Mixing Time ◽  
Time Dependent ◽  
Stirred Tank ◽  
Image Velocimetry ◽  
Evolution With Time

This paper presents an experimental analysis of the evolution with time of the flow pattern in a stirred tank equipped with a rotor-stator mixer, when mixing a time dependent non-Newtonian fluid. Particle image velocimetry (PIV) is used to determine 2D velocity maps. Polyacrylamide (PAAm) aqueous solution is used as model of time dependent shear thinning fluids. Creep compliance and recovery tests are performed to follow the evolution of the fluid rheology, from a viscoelastic behaviour to a purely viscous one. This indicates mixing has almost completely destroyed the initial network structure of the non-Newtonian fluid. The evolution of the flow pattern with the mixing time is compared with the flow patterns obtained in presence of Newtonian fluids as water and glycerol aqueous solution.

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