scholarly journals Controlling the Formation of the Reaction Zone around an Injection Well during Subsurface Iron Removal

Water ◽  
2017 ◽  
Vol 9 (2) ◽  
pp. 87 ◽  
Author(s):  
Rico Bartak ◽  
Wolfgang Macheleidt ◽  
Thomas Grischek
Keyword(s):  
Reaction Zone ◽  
Iron Removal ◽  
Injection Well ◽  
Subsurface Iron Removal

Field tests for subsurface iron removal at a dairy farm in Saxony, Germany

2012 ◽  
pp. 29-40 ◽  
Author(s):  
Jakob Ebermann ◽  
Dieter Eichhorn ◽  
Wolfgang Macheleidt ◽  
Johannes Ahrns ◽  
Thomas Grischek
Keyword(s):  
Dairy Farm ◽  
Field Tests ◽  
Iron Removal ◽  
Subsurface Iron Removal

Characterization of accumulated precipitates during subsurface iron removal

2011 ◽  
Vol 26 (1) ◽  
pp. 116-124 ◽  
Author(s):  
Doris van Halem ◽  
Weren de Vet ◽  
Jasper Verberk ◽  
Gary Amy ◽  
Hans van Dijk
Keyword(s):  
Iron Removal ◽  
Subsurface Iron Removal

Cation exchange during subsurface iron removal

2012 ◽  
Vol 46 (2) ◽  
pp. 307-315 ◽  
Author(s):  
D. van Halem ◽  
D.H. Moed ◽  
J.Q.J.C. Verberk ◽  
G.L. Amy ◽  
J.C. van Dijk
Keyword(s):  
Cation Exchange ◽  
Iron Removal ◽  
Subsurface Iron Removal

TEM characterization of reaction zone in a SiC fiber-reinforced titanium alloy

1988 ◽  
Vol 46 ◽  
pp. 738-739
Author(s):  
G. Das ◽  
R. E. Omlor
Keyword(s):  
Titanium Alloys ◽  
Reaction Zone ◽  
Carbon Layer ◽  
Fiber Reinforced ◽  
Reaction Products ◽  
Sic Fibers ◽  
Sic Fiber ◽  
The Matrix ◽  
Immense Potential

Fiber reinforced titanium alloys hold immense potential for applications in the aerospace industry. However, chemical reaction between the fibers and the titanium alloys at fabrication temperatures leads to the formation of brittle reaction products which limits their development. In the present study, coated SiC fibers have been used to evaluate the effects of surface coating on the reaction zone in the SiC/IMI829 system.IMI829 (Ti-5.5A1-3.5Sn-3.0Zr-0.3Mo-1Nb-0.3Si), a near alpha alloy, in the form of PREP powder (-35 mesh), was used a茸 the matrix. CVD grown AVCO SCS-6 SiC fibers were used as discontinuous reinforcements. These fibers of 142μm diameter contained an overlayer with high Si/C ratio on top of an amorphous carbon layer, the thickness of the coating being ∽ 1μm. SCS-6 fibers, broken into ∽ 2mm lengths, were mixed with IMI829 powder (representing < 0.1vol%) and the mixture was consolidated by HIP'ing at 871°C/0. 28GPa/4h.

Analytical solution for estimating the influence of a pre-existing ground water flow on a geothermal heat production-injection well system

2011 ◽  
Vol 2 (1) ◽  
pp. 13-17
Author(s):  
I. David ◽  
M. Visescu
Keyword(s):  
Ground Water ◽  
Water Flow ◽  
Geothermal Energy ◽  
Flow Direction ◽  
Energy Resource ◽  
Hot Water ◽  
Injection Well ◽  
Production Well ◽  
Ground Water Flow ◽  
The Earth

Abstract Geothermal energy source is the heat from the Earth, which ranges from the shallow ground (the upper 100 m of the Earth) to the hot water and hot rock which is a few thousand meters beneath the Earth's surface. In both cases the so-called open systems for geothermal energy resource exploitation consist of a groundwater production well to supply heat energy and an injection well to return the cooled water, from the heat pump after the thermal energy transfer, in the underground. In the paper an analytical method for a rapid estimation of the ground water flow direction effect on the coupled production well and injection well system will be proposed. The method will be illustrated with solutions and images for representative flow directions respect to the axis of the production/injection well system.

Numerical analysis of thermohydrodynamic processes in the injection well and reservoir with a fracture

2018 ◽  
pp. 42-46
Author(s):  
Yu.А. Pityuk ◽  
◽  
А.Y. Davletbaev ◽  
I.А. Zarafutdinov ◽  
А.А. Musin ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Injection Well

CALCULATION OF OPTIMAL INJECTION RATE FOR DISPERSED WATERFLOODING SYSTEM

2017 ◽  
pp. 63-67
Author(s):  
L. A. Vaganov ◽  
A. Yu. Sencov ◽  
A. A. Ankudinov ◽  
N. S. Polyakova
Keyword(s):  
Injection Rate ◽  
Oil Field ◽  
Injection Well ◽  
Water Migration ◽  
Mutual Location ◽  
Optimal Injection ◽  
Technical Measures ◽  
Injection Rates

The article presents a description of the settlement method of necessary injection rates calculation, which is depended on the injected water migration into the surrounding wells and their mutual location. On the basis of the settlement method the targeted program of geological and technical measures for regulating the work of the injection well stock was created and implemented by the example of the BV7 formation of the Uzhno-Vyintoiskoe oil field.

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