Mine Water Utilization for Geothermal Purposes in Freiberg, Germany: Determination of Hydrogeological and Thermophysical Rock Parameters

2009 ◽  
Vol 29 (1) ◽  
pp. 68-76 ◽  
Author(s):  
Kathrin Kranz ◽  
Julia Dillenardt
Keyword(s):  
Mine Water ◽  
Water Utilization ◽  
Rock Parameters

Mine water utilization in the USSR National Economy

1983 ◽  
Vol 2 (1) ◽  
pp. 23-30 ◽  
Author(s):  
G. G. Voznjuk ◽  
V. A. Gorshkov
Keyword(s):  
National Economy ◽  
Mine Water ◽  
Water Utilization

scholarly journals Determination of 2,4,6-Trinitrotoluene in Wastes and Sewage Water from Mining Industry by Chromato-Mass Spectrometry

2015 ◽  
Vol 15 (4) ◽  
pp. 307
Author(s):  
N.V. Zhuravlyova ◽  
R.R. Potokina ◽  
Z.R. Ismagilov
Keyword(s):  
Gas Chromatography ◽  
Surface Water ◽  
Mine Water ◽  
Underground Mining ◽  
Sewage Water ◽  
Correlation Factor ◽  
Mass Spectrometric ◽  
Mass Spectrometric Detection ◽  
Hazard Class

A method for determination of 2,4,6-trinitrotoluene in  geoenvironmental subjects by gas chromatography with mass-spectrometric detection was proposed. The distribution of 2,4,6-trinitrotoluene in wastes and sewage water samples from mining plants was studied. The presence of this compound in surface water was established. Other nitrogen-containing compounds, in particular, 2-amino-4,6-dinitrotoluene and<br />2,4,-dinitrotoluene, were also identified in the studied samples.<br />The 2,4,6-trinitrotoluene (TNT) is the most important shattering explosive used for blasting out. This compound is highly toxic and stable to biodegradation. The TNT belongs to the second hazard class (highly hazardous); its maximum permissible concentration (MPC) in drinking water sources was strongly restricted, from 0.5 to 0.01 mg/L. A method for determination of 2,4,6-trinitrotoluene in surface water, sewage water and wastes by gas chromatography with mass-spectrometric detection has been developed. The TNT calibration curve was shown to be linear over the concentration range of 1.6-160 μg/mL, and the correlation factor of the line was equal to 0.997. The distribution of 2,4,6-trinitrotoluene in sewage water and wastes from mining plants has been studied. Mine water in the case of underground mining has high TNT concentrations, which cannot be decreased by the existing traditional methods of sewage water treatment. TNT is detected also in surface water after mine water disposal. Note that the TNT concentrations can exceed many times the maximum permissible concentrations prescribed for water works system.<br />2-amino-4,6-dinitrotoluene and 2,4,-dinitrotoluene, which can be considered as products of TNT metabolism, were also identified in the studied samples. The developed method and results of the present study make it possible to introduce the quantitative<br />determination of TNT and its metabolites into the programs for monitoring of surface water, sewage water and wastes in the mining plant sites in different countries as well in Russia, namely in Kuzbass.

scholarly journals Petrophysical Analysis of an Iraqi Gas Field (Mansuriya Gas Field)

2020 ◽  
Vol 26 (3) ◽  
pp. 100-116
Author(s):  
Hasan Saleh Azeez ◽  
Dr. Abdul Aali Al-Dabaj ◽  
Dr.Samaher Lazim
Keyword(s):  
Gamma Ray ◽  
Water Saturation ◽  
Total Porosity ◽  
Logarithmic Scale ◽  
Formation Factor ◽  
Gas Field ◽  
The Matrix ◽  
Rock Parameters ◽  
Potassium 40

Mansuriya Gas field is an elongated anticlinal structure aligned from NW to SE, about 25 km long and 5-6 km wide. Jeribe formation is considered the main reservoir where it contains condensate fluid and has a uniform thickness of about 60 m. The reservoir is significantly over-pressured, (TPOC, 2014). This research is about well logs analysis, which involves the determination of Archie petrophysical parameters, water saturation, porosity, permeability and lithology. The interpretations and cross plots are done using Interactive Petrophysics (IP) V3.5 software. The rock parameters (a, m and n) values are important in determining the water saturation where (m) can be calculated by plotting the porosity from core and the formation factor from core on logarithmic scale for both and the slope which represent (m) then Pickett plot method is used to determine the other parameters after calculating Rw from water analysis . The Matrix Identification (MID), M-N and Density-Neutron crossplots indicates that the lithology of Jeribe Formation consists of dolomite, limestone with some anhydrite also gas-trend is clear in the Jeribe Formation. The main reservoir, Jeribe Formation carbonate, is subdivided into 8 zones namely  J1 to J8, based mainly on porosity log (RHOB and NPHI) trend, DT trend and saturation trend.  Jeribe formation was considered to be clean in terms of shale content .The higher gamma ray because of the uranium component which is often associated with dolomitisationl and when it is removed and only comprises the thorium and potassium-40 contributions, showed the gamma response to be low compared to the total gamma ray response that also contains the uranium   contribution.While the Jeribe formation is considered to be clean in terms of shale content so the total porosity is equal to the effective porosity.No porosity cut off is found if cutoff permeability 0.01 md is applied while the porosity cut off approximately equal to 0.1 only for unit J6 & J8 if cutoff permeability 0.1 md is applied . It can be concluded that no saturation cutoff for the units of Jeribe formation is found after a cross plot between water saturation and log porosity for the reservoir units of Jeribe formation and applied the calculated cut off porosity. The permeability has been predicted using two methods: FZI and Classical, the two methods yield approximately the same results for all wells.

Poroperm properties of reservoir rocks at Kachalivske oil and gas condensate field

2018 ◽  
pp. 18-24
Author(s):  
V. V. Fedoriv ◽  
Ya. M. Ftemov ◽  
I. O. Piatkovska ◽  
A. O. Trubenko
Keyword(s):  
Oil And Gas ◽  
Statistical Processing ◽  
Gas Condensate ◽  
Reservoir Rock ◽  
Geophysical Research ◽  
Reliable Determination ◽  
Reservoir Rocks ◽  
Experimental Laboratory ◽  
Rock Parameters

The results of laboratory, geological and geophysical research methods in Visean and Tournaisian reservoir rocks with complex type deposits of Kachalivske oil and gas condensate feild were analysed. The connection of structural and lithological characteristics with geophysical parameters was substantiated. In some cases, in the Visean and Tournaisian deposits, the multicomponent composition of the rock matrix affects the actual value of geophysical parameter, leading to erroneous conclusions about the reservoir, the nature of the saturation and depth of occurrence. As a result of the statistical processing of experimental laboratory studies and geophysical studies of wells in the Visean and Tournaisian deposits at Kachalivske oil and gas condensate feild, petrophysical models of reservoir rocks were developed allowing reliable determination of poroperm properties of such reservoir rocks. The developed models can be used both for determination the reservoir rock parameters and for quick interpretation of geophysical research results.

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