Multi-Phase Fluid-Loss Properties and Return Permeability of Energized Fracturing Fluids

Upcoming Energy related Products (ErP) regulations on wastewater pumps by the European Commission will affect all pump manufacturers and operators of wastewater systems. Hence, the preparation of efficiency standards for wastewater pumps is intensively accompanied by input from the affected stakeholders and experts of different fields [1]. The previous approaches of ErP regulations, as in lot 11 (Electric motors, Ventilation fans, Circulators in buildings, Electric pumps), focus only on efficiency. However, when applying the philosophy of Ecodesign directly to wastewater pumps, the complex flow structure and the transport behaviour of this inhomogeneous multi-phase fluid must be taken into account. While efficiency is an important criterion, it is necessary to take the specifics of sewage transport into account when designing a new test standard, so as not to compromise on proven and “system-efficient” technologies. Therefore, the Berlin Institute of Technology is currently investigating wastewater compositions and limits for reliable pump operation in order to design a test standard for wastewater pumps comparable to the DIN EN ISO 9906 efficiency tests for clear water [2]. The test will assess the functional fulfilment level of the pump performance, differentiating between the wastewater classes.

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Quantification of Multi-Phase Fluid Saturations in Complex Pore Geometries From Simulations of Nuclear Magnetic Resonance Measurements

10.2118/77399-ms ◽

2002 ◽

Cited By ~ 5

Author(s):

E. Toumelin ◽

C. Torres-Verdin ◽

S. Chen

Keyword(s):

Nuclear Magnetic Resonance ◽

Magnetic Resonance ◽

Multi Phase ◽

Phase Fluid ◽

Nuclear Magnetic

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Research and Application on Fracturing Fluid Loss Model for Glutenite Formation

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.295-298.2842 ◽

2013 ◽

Vol 295-298 ◽

pp. 2842-2847

Author(s):

Yong Ming Li ◽

Pan Luo ◽

Jin Zhou Zhao ◽

Ya Zhou Li

Keyword(s):

Filtration Rate ◽

Orthogonal Transformation ◽

Transformation Method ◽

Fluid Loss ◽

Natural Fractures ◽

Matrix Permeability ◽

Fracturing Fluids ◽

Gravel Size ◽

Dual Porosity Model ◽

Porosity Model

Gravels and natural fractures in glutenite formation have significant impacts on fluid loss when hydraulic fracturing is conducted. Matrix permeability and porosity were computed through Kozeny-Carman equation when gravels contents and size are known. Then a pebbly dual permeability dual porosity model was used to quantitatively evaluate the fracturing fluids loss in glutenite formation. Filtration rate curves could be plotted from the pressure distribution function which was obtained through orthogonal transformation method. Different gravels contents and multi-size-gravels were taken into accounts in this paper. The results show that both filtration rates in matrix and natural fractures decrease with increasing gravels content in matrix; and the filtration rate in matrix decrease much more. Impacts of gravel content are more significant than impacts of gravel size. Natural fractures have much more significant impacts than gravels.

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Predicting the Fluid Loss of Drilling, Workover, and Fracturing Fluids into a Formation With and Without Filter Cake

10.2118/35227-ms ◽

1996 ◽

Cited By ~ 1

Author(s):

E.S. Carlson ◽

M. Venkataraman ◽

P.E. Clark ◽

T.R. Sifferman ◽

M.D. Coffey ◽

...

Keyword(s):

Filter Cake ◽

Fluid Loss ◽

Fracturing Fluids

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Dual Application of Polyelectrolyte Complex Nanoparticles as Enzyme Breaker Carriers and Fluid Loss Additives for Fracturing Fluids

10.2118/171571-ms ◽

2014 ◽

Cited By ~ 6

Author(s):

Charles Chempakathinal Bose ◽

Bader Alshatti ◽

Levi Swartz ◽

Aadish Gupta ◽

Reza Barati

Keyword(s):

Polyelectrolyte Complex ◽

Fluid Loss ◽

Fracturing Fluids

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Computational Simulation of Fuel Tank Sloshing for a FSAE car using CFD Techniques

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.c6891.098319 ◽

2019 ◽

Vol 8 (3) ◽

pp. 4875-4884

Keyword(s):

Computational Simulation ◽

Specific Capacity ◽

Random Motion ◽

Fuel Tank ◽

Dynamic Forces ◽

Left And Right ◽

Multi Phase ◽

Fuel Slosh ◽

Tank Sloshing ◽

Phase Fluid

Sloshing refers to the highly random motion of any fluid inside an object where the dynamic forces of the liquid can interact with the object to alter the overall system dynamics. This work summarises the process of designing and simulating the 3-D geometry of a fuel tank using CFD and the volume of fluid (VOF) method considering multi-phase fluid flow predicting fuel slosh movement at a specific capacity within a definite fixed volume.[13-16] As the performance of the engine heavily depends on a constant supply of fuel, the splashing of gasoline inside the partially filled fuel tank can severely affect the performance when subjected to sudden left and right turns during a Slalom in FSAE tracks. This scenario can be modelled, analysed and effectively controlled by reducing pressure intensities inside the tank walls using a set of strategically placed Baffles. Therefore, this study attempts to reduce the sloshing behaviour by considering multiple types of geometries and shows the final geometry chosen using computational simulations inside the fuel tank considering 1.5 litres of fuel and remaining with air inside a 7.3 litres fuel tank, thus predicting the effect of sloshing forces and moments inside the tank structure considering lateral and longitudinal acceleration fields. The model is discussed and results are presented. In addition, this paper can be referred to as a detailed tutorial on how to simulate and take in consideration of all the factors which will be useful in deciding vehicle fuel requirements and optimum design.

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