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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F13%3A10195611%21RIV14-MSM-11310___
rdf:type
n16:Vysledek skos:Concept
rdfs:seeAlso
http://dx.doi.org/10.1190/GEO2013-0027.1
dcterms:description
Methodological aspects of gravity data processing and interpretation for assessing the possibility of exploiting geothermal energy for electricity production are presented. Gravimetry is one of the most economical and most effective geophysical methods for exploration of deep geologic structures. Unfortunately the gravity inversion ambiguity problem introduces the necessity of constraining gravity models by other independent data. The procedures interpreting 2D gravity models constrained by the results of an integration of other suitable geophysical methods are described in three case studies in the Czech Republic. Gravity, reflection and refraction seismics, magnetometry, resistivity, and vertical electric sounding data were collected along profiles at each locality. Two-dimensional gravity models based on complete Bouguer anomalies were constructed taking into account the results of processing and interpretation of other geophysical data. Relevant factors influencing the potential for geothermal energy exploitation were evaluated from the interpreted geophysical models. Promising zones suitable for future exploration were established at each locality. The most important structures for locating geothermal production and injection drills are deep tectonic fault zones which can freely support fluid flow. The presented examples show that the gravity anomalies caused by fracture zones can be significant enough to unambiguously interpret and evaluate their importance in terms of hydrological permeability. In addition, the presented case histories demonstrate that two-dimensional geophysical surveys can effectively be used to reduce exploration costs in geothermal projects. Methodological aspects of gravity data processing and interpretation for assessing the possibility of exploiting geothermal energy for electricity production are presented. Gravimetry is one of the most economical and most effective geophysical methods for exploration of deep geologic structures. Unfortunately the gravity inversion ambiguity problem introduces the necessity of constraining gravity models by other independent data. The procedures interpreting 2D gravity models constrained by the results of an integration of other suitable geophysical methods are described in three case studies in the Czech Republic. Gravity, reflection and refraction seismics, magnetometry, resistivity, and vertical electric sounding data were collected along profiles at each locality. Two-dimensional gravity models based on complete Bouguer anomalies were constructed taking into account the results of processing and interpretation of other geophysical data. Relevant factors influencing the potential for geothermal energy exploitation were evaluated from the interpreted geophysical models. Promising zones suitable for future exploration were established at each locality. The most important structures for locating geothermal production and injection drills are deep tectonic fault zones which can freely support fluid flow. The presented examples show that the gravity anomalies caused by fracture zones can be significant enough to unambiguously interpret and evaluate their importance in terms of hydrological permeability. In addition, the presented case histories demonstrate that two-dimensional geophysical surveys can effectively be used to reduce exploration costs in geothermal projects.
dcterms:title
Use of gravimetry in detailed geophysical prospection of potential geothermal energy exploitation sites: Case studies in the Czech Republic Use of gravimetry in detailed geophysical prospection of potential geothermal energy exploitation sites: Case studies in the Czech Republic
skos:prefLabel
Use of gravimetry in detailed geophysical prospection of potential geothermal energy exploitation sites: Case studies in the Czech Republic Use of gravimetry in detailed geophysical prospection of potential geothermal energy exploitation sites: Case studies in the Czech Republic
skos:notation
RIV/00216208:11310/13:10195611!RIV14-MSM-11310___
n16:predkladatel
n17:orjk%3A11310
n3:aktivita
n18:Z
n3:aktivity
Z(MSM0021620855)
n3:cisloPeriodika
5
n3:dodaniDat
n4:2014
n3:domaciTvurceVysledku
n14:1114492
n3:druhVysledku
n10:J
n3:duvernostUdaju
n20:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
112989
n3:idVysledku
RIV/00216208:11310/13:10195611
n3:jazykVysledku
n7:eng
n3:klicovaSlova
case history; gravity; geothermal
n3:klicoveSlovo
n6:gravity n6:case%20history n6:geothermal
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[E90AA181958B]
n3:nazevZdroje
Geophysics
n3:obor
n11:DB
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
2
n3:rokUplatneniVysledku
n4:2013
n3:svazekPeriodika
78
n3:tvurceVysledku
Karous, Milos Mantlík, František
n3:wos
000325395200010
n3:zamer
n19:MSM0021620855
s:issn
0016-8033
s:numberOfPages
11
n12:doi
10.1190/GEO2013-0027.1
n15:organizacniJednotka
11310