Some results of electrometric investigations of the state of a rock salt mass in the vicinity of near-shaft workings of the Verkhnekamskii potassium mines

1982 ◽  
Vol 18 (6) ◽  
pp. 477-481 ◽  
Author(s):  
S. A. Konstantinova ◽  
V. A. Misnikov
Keyword(s):  
Rock Salt ◽  
The State ◽  
Salt Mass

Rock salt mass in the Paleoproterozoic sequence of the Onega trough in Karelia (from the Onega parametric well data)

2010 ◽  
Vol 435 (1) ◽  
pp. 1483-1486 ◽  
Author(s):  
A. F. Morozov ◽  
B. N. Khakhaev ◽  
O. V. Petrov ◽  
V. I. Gorbachev ◽  
G. V. Tarkhanov ◽  
...  
Keyword(s):  
Rock Salt ◽  
Salt Mass ◽  
Well Data

Two Brilliant Careers

2013 ◽  
Author(s):  
Lars Öhrström
Keyword(s):  
Sodium Chloride ◽  
Metal Ions ◽  
Rock Salt ◽  
The State ◽  
Table Salt ◽  
Bob Dylan ◽  
Chemistry Textbooks ◽  
The World ◽  
Rules Of Thumb ◽  
Positively Charged

At the time of publishing, it is exactly 50 years since Bob Dylan answered a number of enigmatic questions with the ambiguous line ‘the answer is blowin’ in the wind’ on the A-side of the record The Freewheelin’ Bob Dylan. But one of these, ‘How many years can a mountain exist before it’s washed to the sea?’ we can at least try to answer, as part of the solution lies in one of the more famous rules of thumb one learns as a novice chemist: positively charged metal ions combined with oxides (O2−), sulphides (S2−), phosphates (PO43− ), silicates (SiO42−), and carbonates (CO32−), are insoluble in water, whereas similar nitrates (NO3− ), chlorides (Cl−), and bromides (Br−), are soluble. In terms of stuff you’ve got in your kitchen, this means that when you put a spoon of table salt (NaCl) into water it will ‘disappear’, faster if you stir or heat, and the water will look exactly the same as before. For the insoluble stuff, we move to the more expensive regions of the cupboards and investigate the state of our silver and copperware. When things like these were to be on display, my mother used to have me clean them with silver or copper polish, as the oxides and sulphides tarnishing the metal surfaces did not go away in a normal wash with water—they are completely insoluble. A suitable but boring exercise, and as close to a chemistry set as I ever came as a child. What they normally don’t tell you in chemistry textbooks however, are the enormous consequences of these rules, visible all over the world. Why are mountains made of rocks from oxides, sulphides, phosphates, silicates, and carbonates? Because they are insoluble! Any mountains made from sodium chloride would indeed have been ‘washed to the sea’ thousands of years ago, and where NaCl can be mined it is also known as rock salt, and found either underground or in regions with a very dry climate. Which brings us to the hero and heroine if this chapter.

scholarly journals Geomechanical simulation of energy storage in salt formations

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kishan Ramesh Kumar ◽  
Artur Makhmutov ◽  
Christopher J. Spiers ◽  
Hadi Hajibeygi
Keyword(s):  
Energy Storage ◽  
Rock Salt ◽  
Creep Deformation ◽  
The State ◽  
Material Heterogeneity ◽  
State Of Stress ◽  
Linear Creep ◽  
Salt Caverns ◽  
The Impact

AbstractA promising option for storing large-scale quantities of green gases (e.g., hydrogen) is in subsurface rock salt caverns. The mechanical performance of salt caverns utilized for long-term subsurface energy storage plays a significant role in long-term stability and serviceability. However, rock salt undergoes non-linear creep deformation due to long-term loading caused by subsurface storage. Salt caverns have complex geometries and the geological domain surrounding salt caverns has a vast amount of material heterogeneity. To safely store gases in caverns, a thorough analysis of the geological domain becomes crucial. To date, few studies have attempted to analyze the influence of geometrical and material heterogeneity on the state of stress in salt caverns subjected to long-term loading. In this work, we present a rigorous and systematic modeling study to quantify the impact of heterogeneity on the deformation of salt caverns and quantify the state of stress around the caverns. A 2D finite element simulator was developed to consistently account for the non-linear creep deformation and also to model tertiary creep. The computational scheme was benchmarked with the already existing experimental study. The impact of cyclic loading on the cavern was studied considering maximum and minimum pressure that depends on lithostatic pressure. The influence of geometric heterogeneity such as irregularly-shaped caverns and material heterogeneity, which involves different elastic and creep properties of the different materials in the geological domain, is rigorously studied and quantified. Moreover, multi-cavern simulations are conducted to investigate the influence of a cavern on the adjacent caverns. An elaborate sensitivity analysis of parameters involved with creep and damage constitutive laws is performed to understand the influence of creep and damage on deformation and stress evolution around the salt cavern configurations. The simulator developed in this work is publicly available at https://gitlab.tudelft.nl/ADMIRE_Public/Salt_Cavern.

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