Analysis of casing failures of deep geothermal wells in Greece
Identifieur interne : 000344 ( Main/Merge ); précédent : 000343; suivant : 000345Analysis of casing failures of deep geothermal wells in Greece
Auteurs : E. Chiotis [Grèce] ; G. Vrellis [Grèce]Source :
- Geothermics [ 0375-6505 ] ; 1995.
Descripteurs français
- Wicri :
- topic : énergie géothermique.
English descriptors
- KwdEn :
- Axial, Axial stress, Axial tension, Brine, Burst resistance, Casing, Casing design, Casing failures, Casing temperature, Casing weight, Collapse resistance, Depth interval, Elastic deformation, External pressure, First production test, Geotermica italiana, Geothermal, Geothermal brines, Geothermal energy, Geothermal field, Geothermal water, Geothermal wells, Greek fields, High temperatures, Hydrostatic pressure, Internal pressure, Mechanical tension, Milo, Neutral temperature, Nisyros, Overpressure, Overpressured, Overpressured formation, Plastic deformation, Productive formations, Specific weight, Steam column, Steam pressure, Temperature increase, Temperature measurements, Thermal stress, Thermal stresses, Tieback casing, Typical wells, Undisturbed temperature, Upper part, Wellhead, Wellhead pressure.
- Teeft :
- Axial, Axial stress, Axial tension, Brine, Burst resistance, Casing, Casing design, Casing failures, Casing temperature, Casing weight, Collapse resistance, Depth interval, Elastic deformation, External pressure, First production test, Geotermica italiana, Geothermal, Geothermal brines, Geothermal energy, Geothermal field, Geothermal water, Geothermal wells, Greek fields, High temperatures, Hydrostatic pressure, Internal pressure, Mechanical tension, Milo, Neutral temperature, Nisyros, Overpressure, Overpressured, Overpressured formation, Plastic deformation, Productive formations, Specific weight, Steam column, Steam pressure, Temperature increase, Temperature measurements, Thermal stress, Thermal stresses, Tieback casing, Typical wells, Undisturbed temperature, Upper part, Wellhead, Wellhead pressure.
Abstract
Abstract: The specific characteristics of the Greek geothermal fields on the volcanic islands of Milos and Nisyros are described, with emphasis on the characteristics affecting well casing. Overpressure, high temperatures and highly saline brines are typical features of the Greek fields. A new treatment of the different load conditions along the casing string in proposed that takes into consideration the possible formation overpressure, the axial thermal stresses and their effect on burst and collapse resistance. This treatment is further applied to some typical wells that have experienced casing failure.
Url:
DOI: 10.1016/0375-6505(95)00028-3
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ISTEX:6D9A3ED7B058EFD7F4AE586662BE36D635DC6E3DLe document en format XML
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<author><name sortKey="Vrellis, G" sort="Vrellis, G" uniqKey="Vrellis G" first="G." last="Vrellis">G. Vrellis</name>
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<sourceDesc><biblStruct><analytic><title level="a">Analysis of casing failures of deep geothermal wells in Greece</title>
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<series><title level="j">Geothermics</title>
<title level="j" type="abbrev">GEOT</title>
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<imprint><publisher>ELSEVIER</publisher>
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<biblScope unit="volume">24</biblScope>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Axial</term>
<term>Axial stress</term>
<term>Axial tension</term>
<term>Brine</term>
<term>Burst resistance</term>
<term>Casing</term>
<term>Casing design</term>
<term>Casing failures</term>
<term>Casing temperature</term>
<term>Casing weight</term>
<term>Collapse resistance</term>
<term>Depth interval</term>
<term>Elastic deformation</term>
<term>External pressure</term>
<term>First production test</term>
<term>Geotermica italiana</term>
<term>Geothermal</term>
<term>Geothermal brines</term>
<term>Geothermal energy</term>
<term>Geothermal field</term>
<term>Geothermal water</term>
<term>Geothermal wells</term>
<term>Greek fields</term>
<term>High temperatures</term>
<term>Hydrostatic pressure</term>
<term>Internal pressure</term>
<term>Mechanical tension</term>
<term>Milo</term>
<term>Neutral temperature</term>
<term>Nisyros</term>
<term>Overpressure</term>
<term>Overpressured</term>
<term>Overpressured formation</term>
<term>Plastic deformation</term>
<term>Productive formations</term>
<term>Specific weight</term>
<term>Steam column</term>
<term>Steam pressure</term>
<term>Temperature increase</term>
<term>Temperature measurements</term>
<term>Thermal stress</term>
<term>Thermal stresses</term>
<term>Tieback casing</term>
<term>Typical wells</term>
<term>Undisturbed temperature</term>
<term>Upper part</term>
<term>Wellhead</term>
<term>Wellhead pressure</term>
</keywords>
<keywords scheme="Teeft" xml:lang="en"><term>Axial</term>
<term>Axial stress</term>
<term>Axial tension</term>
<term>Brine</term>
<term>Burst resistance</term>
<term>Casing</term>
<term>Casing design</term>
<term>Casing failures</term>
<term>Casing temperature</term>
<term>Casing weight</term>
<term>Collapse resistance</term>
<term>Depth interval</term>
<term>Elastic deformation</term>
<term>External pressure</term>
<term>First production test</term>
<term>Geotermica italiana</term>
<term>Geothermal</term>
<term>Geothermal brines</term>
<term>Geothermal energy</term>
<term>Geothermal field</term>
<term>Geothermal water</term>
<term>Geothermal wells</term>
<term>Greek fields</term>
<term>High temperatures</term>
<term>Hydrostatic pressure</term>
<term>Internal pressure</term>
<term>Mechanical tension</term>
<term>Milo</term>
<term>Neutral temperature</term>
<term>Nisyros</term>
<term>Overpressure</term>
<term>Overpressured</term>
<term>Overpressured formation</term>
<term>Plastic deformation</term>
<term>Productive formations</term>
<term>Specific weight</term>
<term>Steam column</term>
<term>Steam pressure</term>
<term>Temperature increase</term>
<term>Temperature measurements</term>
<term>Thermal stress</term>
<term>Thermal stresses</term>
<term>Tieback casing</term>
<term>Typical wells</term>
<term>Undisturbed temperature</term>
<term>Upper part</term>
<term>Wellhead</term>
<term>Wellhead pressure</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>énergie géothermique</term>
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<front><div type="abstract" xml:lang="en">Abstract: The specific characteristics of the Greek geothermal fields on the volcanic islands of Milos and Nisyros are described, with emphasis on the characteristics affecting well casing. Overpressure, high temperatures and highly saline brines are typical features of the Greek fields. A new treatment of the different load conditions along the casing string in proposed that takes into consideration the possible formation overpressure, the axial thermal stresses and their effect on burst and collapse resistance. This treatment is further applied to some typical wells that have experienced casing failure.</div>
</front>
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