Termodinamička parametrizacija ugljikovog dioksida u procesu njegovog trajnog skladištenja u vodom zasićena ležišta pri potkritičnom tlaku

master's thesis

• Title: Termodinamička parametrizacija ugljikovog dioksida u procesu njegovog trajnog skladištenja u vodom zasićena ležišta pri potkritičnom tlaku : diplomski rad
• Title (english): Thermodynamic parameterization of carbon dioxide in the process of its permanent storage in water-saturated reservoirs at subcritical pressure : master's thesis
• Author: Dario Zahatek
• Mentor: Luka Perković (mentor)
• Committee member: Luka Perković (predsjednik povjerenstva)
• Committee member: Tomislav Kurevija (član povjerenstva)
• Committee member: Marija Macenić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Petroleum and Gas Engineering and energy); Zagreb
• Defense date and country: 2024-09-30, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mining, Petroleum and Geology Engineering; Petroleum Mining

Abstract

Ovaj rad prikazuje cjeloviti spregnuti model za termodinamičku parametrizaciju ugljikovog dioksida u procesu njegovog trajnog zbrinjavanja u vodom zasićena iscrpljena plinska ležišta pri potkritičnom tlaku. Utiskivanje u ležišta pri potkritičnom tlaku mogu zbog naglog pada tlaka u perforacijama i pribušotinskoj zoni dovesti do stvaranja hidrata ili smrzavanja ležišne vode uslijed Joule-Thomsonovog efekta. Zbog toga je potrebno provesti pripremu CO2 korištenjem površinske opreme u vidu povećanja tlaka radi ostvarivanja protoka i njegovog zagrijavanja. Proračun je proveden na jednom hipotetskom primjeru i rezultati pokazuju da model daje kvalitativno očekivana rješenja u smislu potrebne količine rada koja za transport CO2 cjevovodima iznosi iznad 150 kJ/kg, uz specifično odvedenu toplinu u iznosu od -200 kJ/kg, a za pumpanje CO2 prije utiskivanja oko 15 kJ/kg. S druge strane, zagrijavanje CO2 pri utiskivanju treba provesti sa specifičnom potrošnjom topline u iznosu od 250 kJ/kg.

Abstract (english)

This paper presents a complete coupled model for the thermodynamic parameterization of carbon dioxide in the process of its permanent disposal in watersaturated depleted gas reservoirs at subcritical pressure. Pressing into reservoirs at subcritical pressure can lead to the formation of hydrates or icing of reservoir water due to a sudden drop in pressure in the perforations and near-well zone due to the Joule-Thomson effect. For this reason, it is necessary to carry out the preparation of CO2 using surface equipment in the form of increasing the pressure in order to achieve the flow and its heating. The calculation was carried out on a hypothetical example and the results show that the model provides qualitatively expected solutions in terms of the required amount of specific work, which for transporting CO2 through pipelines is over 150 kJ/kg with specific cooling at around –200 kJ/kg, and for pumping CO2 prior to injection around 15 kJ/kg. On the other hand, the heating of CO2 during pressing should be carried out with a specific heat consumption in the amount of 250 kJ/kg.

• Keywords: trajno skladištenje ugljikovog dioksida u geološke formacije; specifična potrošnja energije; kompresija CO2; pumpanje CO2; predgrijavanje CO2
• Keywords (english): carbon capture and storage CCS; specific energy consumption; compression of CO2; pumping of CO2; preheating of CO2
• Language: croatian
• URN:NBN: urn:nbn:hr:169:590245
• Study programme: Title: Petroleum engineering; specializations in: Petroleum engineering, Energy production and supply, Environmental protection in petroleum engineering; Course: Energy production and supply; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka naftnog rudarstva (magistar/magistra inženjer/inženjerka naftnog rudarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-12-17 12:19:27