scholarly journals A Laboratory Study on Rheological Properties of Fluid Mud

2012 ◽  
Vol 24 (3) ◽  
pp. 203-209 ◽  
Author(s):  
Dinh Phuc Nguyen ◽  
Eui-Taek Jung ◽  
Kun-Chul Park ◽  
Kyu-Nam Hwang
Keyword(s):  
Rheological Properties ◽  
Laboratory Study ◽  
Fluid Mud

A Laboratory Study of Rheological Properties of Soft Mud Using a Dynamic Shear-controlled Oscillatory Viscometer

2018 ◽  
Vol 85 ◽  
pp. 1226-1230 ◽  
Author(s):  
Sihang Nie ◽  
Qin Jiang ◽  
Lizhu Wang ◽  
Jun Zhang ◽  
Peng Liu
Keyword(s):  
Rheological Properties ◽  
Laboratory Study ◽  
Dynamic Shear

Strategies for Measuring Fluid Mud Layers and Their Rheological Properties in Ports

2017 ◽  
Vol 143 (4) ◽  
pp. 04017008 ◽  
Author(s):  
Juliane Castro Carneiro ◽  
Diego Luiz Fonseca ◽  
Susana Beatriz Vinzon ◽  
Marcos Nicolás Gallo
Keyword(s):  
Rheological Properties ◽  
Fluid Mud

scholarly journals Rheology of Mud: An Overview for Ports and Waterways Applications

2021 ◽  
Author(s):  
Ahmad Shakeel ◽  
Alex Kirichek ◽  
Claire Chassagne
Keyword(s):  
Organic Matter ◽  
Rheological Properties ◽  
Organic Matter Content ◽  
Matter Content ◽  
Point Of View ◽  
Sampling Location ◽  
Fluid Mud ◽  
Systematic Analysis ◽  
Semi Empirical ◽  
Cohesive Material

Mud, a cohesive material, consists of water, clay minerals, sand, silt and small quantities of organic matter (i.e., biopolymers). Amongst the different mud layers formed by human or natural activities, the fluid mud layer found on top of all the others is quite important from navigational point of view in ports and waterways. Rheological properties of fluid mud layers play an important role in navigation through fluid mud and in fluid mud transport. However, the rheological properties of mud are known to vary as a function of sampling location within a port, sampling depth and sampling location across the globe. Therefore, this variability in rheological fingerprint of mud requires a detailed and systematic analysis. This chapter presents two different sampling techniques and the measured rheological properties of mud, obtained from laboratory experiments. The six protocols used to measure the yield stresses are detailed and compared. Furthermore, the empirical or semi-empirical models that are commonly used to fit rheological experimental data of such systems are presented. The influence of different factors such as density and organic matter content on the rheological behavior of mud is discussed. The fluidic yield stress of mud samples was observed to vary from 0.2 Pa to 500 Pa as a function of density and organic matter content.

Sediment sampling and soil properties of sediments in the Hamburg port and the river Elbe in comparison with hydro-acoustic measurements

2020 ◽  
Author(s):  
Nino Ohle ◽  
Thomas Thies ◽  
Rolf Lüschow ◽  
Ulrich Schmekel
Keyword(s):  
Boundary Conditions ◽  
Soil Properties ◽  
Rheological Properties ◽  
In Situ Monitoring ◽  
Rheological Parameters ◽  
Fluid Mud ◽  
Acoustic Measurements ◽  
Port Authority ◽  
River Elbe

<p>For future strategies in water depth maintenance in the Port of Hamburg, determining the navigability limit (i.e. the nautical safe depth) is of major importance. For this purpose, a project "Nautical Depth" was set up at the Hamburg Port Authority (HPA), which is dedicated to dealing with this issue. The aim is to measure a nautical safe depth under various boundary conditions and to identify limits for a safe passage of high concentrated soil suspensions. Among other things, the project cooperates with the Antwerp Port Authority, the Port of Rotterdam and the TU Delft. The project is also embedded in a research platform or network called MUDNET (www.tudelft.nl/mudnet).</p><p>In order to achieve the required acceptance for a reassessment of the nautical depth, it is necessary to determine the rheological properties of soil suspensions in-situ. The rheological parameters - which will be used to describe the nautical depth - have still to be determined. For a permanent identification of nautical relevant rheological properties of the soil suspensions, existing in-situ measuring devices have been tested and, under certain circumstances, new equipment has to be developed. However, these devices cannot be used for the spatial determination of the rheological properties but will reproduce these on cross-sections and depth profiles. Therefore, new evaluation algorithms should be developed in echo-sounding technology - which have to be correlated with the in-situ rheological properties - in order to ensure spatial representations of a safe nautical depth.</p><p>In a first step, measurements of nature conditions in the water column and at the riverbed were carried out in 9 areas and in 12 measuring campaigns in 2018 and 2019 in the Hamburg Port. Therefore, different sediment profiler devices (Rheotune, Graviprobe, Admodus USP) have been tested. Sediment samples were taken with a modified Frahm-Lot. All investigations were combined with hydro-acoustic measurements which includes multibeam echo-sounders and sub-bottom profilers with Silas processing software.</p><p>The presentation will give a closer look to the sampling strategies and results of the different soil properties within the Hamburg port and the river Elbe, which serves as fairway to the port. The investigations show that the soil properties are dependent from local and regional boundary conditions, as flow velocity, grain size distribution and especially in Hamburg from the organic matters and nutrients within the suspended and the soil material. Moreover, the laboratory data will be compared with hydro-acoustical and in-situ monitoring devices. Advantages and disadvantages of the different systems will be discussed.</p><p>Kamphuis et al. (2013) Fluid Mud and Determining, Nautical Dept Hydro International, 22-25;</p><p>Malcherek, A. et al. (2011) Zur Rheologie von Flüssigschlicken: Experimentelle Untersuchungen und theoretische Ansätze, Mitteilungen des Instituts für Wasserwessen der Universität der Bundeswehr, München 111:1-191;</p><p>Metha et al. (2013) Fluid Mud Properties in Nautical Depth Estimation, Journal of Waterway, Port, Coastal & Ocean Engineering, 140:210-222;</p><p>Ohle, N. et al (2019) Introduction and first results within the project “Nautical Depth” in Hamburg, 11<sup>th</sup> International SedNet conference, 3-5 April 2019, Dubrovnik;</p>

Assessing rheological properties of fluid mud samples through tuning fork data

2018 ◽  
Vol 69 (1) ◽  
pp. 51-57 ◽  
Author(s):  
Diego Luiz Fonseca ◽  
Patrícia Cunha Marroig ◽  
Juliane Castro Carneiro ◽  
Marcos Nicolás Gallo ◽  
Susana Beatriz Vinzón
Keyword(s):  
Rheological Properties ◽  
Tuning Fork ◽  
Fluid Mud

scholarly journals LABORATORY STUDY OF INFLUENCE OF RHEOLOGICAL CHARACTERISTICS OF CROSS-LINKED POLYMER SYSTEMS ON PERMEABILITY AND OIL DISPLACEMENT COEFFICIENTS

2020 ◽  
Vol 20 (2) ◽  
pp. 162-174 ◽  
Author(s):  
Vadim Iu. Ogoreltcev ◽  
◽  
Sergei A. Leontev ◽  
Valentin A. Korotenko ◽  
Sergei I. Grachev ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Enhanced Oil Recovery ◽  
Laboratory Study ◽  
Oil Recovery ◽  
Polymer Composition ◽  
Laboratory Studies ◽  
Polymer Systems ◽  
Oil Displacement ◽  
Study Laboratory ◽  
Recovery Methods

In development of hard-to-recover hydrocarbon reserves, enhanced oil recovery methods are applied on a massive scale, chemical methods being the most common ones. Each formation stimulation technology is associated with certain application conditions which depend on the initial geological and physical formation parameters and current state of its development. Methodological approach is provided for determination of permeability coefficient and coefficient of oil displacement from rock during testing of compositions of technologies of physical and chemical enhanced oil recovery methods on the basis of laboratory studies of rheological properties of various brands of acrylamide polymer. The methods have been developed according to the requirements to core analysis. The study provides a list of equipment and basic characteristics of the filtration system, as well as the procedure for preparation of working fluids and laboratory formation to laboratory study. Laboratory study of gel systems’ rheological properties is performed on the basis of the technological process for preparation of components of viscoelastic compound recipe at the wellhead and its further injection into the formation. To this end, in order to determine the rheological properties of gel systems, a special-purpose rheometer was used, with a capability to dynamically register the changing viscosity data of the tested polymer systems prepared on the analogues of fresh, produced and Cenomanian waters in “well – formation” thermobaric conditions. Based on the laboratory studies, it has been shown that trial injections of cross-linked compositions on the basis of polyacrylamide (PAA) of brands FP-107 and Ро1у-Т-101, possessing the capability of multifold increase of final viscosity of the polymer composition (by 2–3 times and more) in conditions of increasing temperature in low salinity waters (produced, Cenomanian), enable higher technological effectiveness compared to brand FP-307 polyacrylamide presently used in the company’s oilfields.

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