Pregled bibliografske jedinice broj: 489890
CO2 UNDERGROUND STORAGE AND WELLBORE INTEGRITY
CO2 UNDERGROUND STORAGE AND WELLBORE INTEGRITY // The Conference Proceedings:XV. International Scientific-technical Conference "New Knowledge in the Area of Drilling, Production, Transport and Storage of Hydrocarbons" / Horniakova, Eliška (ur.).
Košice: TU v Košiciach, F BERG, Dekanat-edične pracovisko, 2010. str. 11-17 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), stručni)
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Naslov
CO2 UNDERGROUND STORAGE AND WELLBORE INTEGRITY
Autori
Gaurina-Međimurec, Nediljka ; Pašić, Borivoje ; Simon, Katarina
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), stručni
Izvornik
The Conference Proceedings:XV. International Scientific-technical Conference "New Knowledge in the Area of Drilling, Production, Transport and Storage of Hydrocarbons"
/ Horniakova, Eliška - Košice : TU v Košiciach, F BERG, Dekanat-edične pracovisko, 2010, 11-17
ISBN
978-80-553-0504-2
Skup
XV. International Scientific-technical Conference
Mjesto i datum
Podbanské, Slovačka, 19.10.2010. - 21.10.2010
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
CO2; carbon storage; Portland cement; geochemical degradation; wellbore integrity
Sažetak
Capturing and storing carbon dioxide (CO2) underground for thousands of years is one way to reduce atmospheric greenhouse gases, often associated with global warming. CO2 injection candidates may be new wells, or old wells that are active, closed or abandoned. In all cases, it is critical to ensure that the long-term integrity of the storage wells is kept ; in others words wellbore integrity is one of the key performance criteria in the geological storage of CO2. Underground gas storage operations and CO2 sequestration in aquifers relay on both proper wellbore construction and sealing function of the cap rock. The potential leakage paths are the migration CO2 along the wellbore due to poor cementation and flow through the cap rock. The permeability and integrity of the cement will determine how effective it is in preventing leakage. The integrity of the cap rock is assured by an adequate fracture gradient and by sufficient cement around the casing across the cap rock and without a micro-annulus. The paper describes geochemical alteration of hydrated Portland cement due to supercritical CO2 injection and new cement with better CO2 resistance.
Izvorni jezik
Engleski
Znanstvena područja
Rudarstvo, nafta i geološko inženjerstvo
POVEZANOST RADA
Projekti:
195-1951390-1394 - Istraživanje međudjelovanja bušotinskih fluida i stijena (Gaurina-Međimurec, Nediljka, MZOS ) ( CroRIS)
195-1951390-1397 - Razvoj i primjena novih tehnologija pri izradi i opremanju bušotina (Simon, Katarina, MZOS ) ( CroRIS)
Ustanove:
Rudarsko-geološko-naftni fakultet, Zagreb
