Optimal conditions for CO2 permanent storage in a producing gas reservoir

master's thesis

• Title: Optimal conditions for CO2 permanent storage in a producing gas reservoir : master's thesis
• Title (croatian): Optimalni uvjeti za trajno skladištenje CO2 u proizvodnom plinskom ležištu : diplomski rad
• Author: Valentina Kružić
• Mentor: Domagoj Vulin (mentor)
• Mentor: Lucija Jukić (pomoć pri izradi, neposredni voditelj)
• Committee member: Domagoj Vulin (predsjednik povjerenstva)
• Committee member: Daria Karasalihović Sedlar (član povjerenstva)
• Committee member: Sonja Koščak Kolin (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: 2023-12-15, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mining, Petroleum and Geology Engineering; Petroleum Mining

Abstract

Carbon capture and storage (CCS) is considered the best option for the removal of large amounts of CO2. The CO2 permanent storage could be achieved by injection of CO2 into depleted and producing hydrocarbon reservoirs. This thesis examines both options using a typical model of a gas-condensate reservoir from Northern Croatia (Drava Basin) with a high CO2 content. In total, 27 cases of CO2 injection are simulated to optimize the position of the injection well and the start time of injection for the purpose of its permanent storage. Based on real field data, the reservoir was modelled using Schlumberger’s Petrel software (Reservoir Engineering module, RE) with the help of compositional simulator E300. Retention, storability, reservoir pressure, and cumulative production of ‘pure’ natural gas and CO2 were compared in all cases. Results have proved that CO2 permanent storage is possible in producing gas-condensate reservoirs with a high CO2 content.

Abstract (croatian)

Geološko skladištenje ugljikovog dioksida (engl. Carbon Capture and Storage, CCS) smatra se najboljom opcijom za uklanjanje velikih količina CO2. Trajno skladištenje moguće je ostvariti utiskivanjem CO2 u iscrpljena ležišta ugljikovodika te u ležišta koja i dalje proizvode. U ovom radu ispitane su obje opcije na primjeru modela tipičnog plinsko-kondenzatnog ležišta iz Sjeverne Hrvatske (Dravska depresija) s visokim udjelom CO2. Ukupno je simulirano 27 slučajeva utiskivanja CO2 kako bi se optimizirali položaj utisne bušotine i vrijeme početka utiskivanja za njegovo trajno skladištenje. Na temelju podataka stvarnog ležišta, izrađen je ležišni model u softveru Petrel (modul Reservoir Engineering, RE) kompanije Schlumberger, korištenjem komponentnog simulatora E300. Retencija, uskladištivost, ležišni tlak i kumulativna proizvodnja ‘čistog’ prirodnog plina i CO2 uspoređeni su za sve slučajeve. Rezultati su dokazali da je trajno skladištenje CO2 moguće u proizvodnim plinsko-kondenzatnim ležištima s visokim udjelom CO2.

• Keywords: CCS; gas-condensate reservoir; simulation; injection; retention; storability
• Keywords (english): CCS; plinsko-kondenzatno ležište; simulacija; utiskivanje; retencija; uskladištivost
• Language: english
• URN:NBN: urn:nbn:hr:169:500552
• Study programme: Title: Petroleum engineering; specializations in: Petroleum engineering, Energy production and supply, Environmental protection in petroleum engineering; Course: Petroleum engineering; 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: 2024-01-10 15:07:49