TY - JOUR
T1 - Small scale experiments of CO2 boiling liquid expanding vapor explosion in injection pipes
AU - Zhou, Yi
AU - Liu, Zhenyi
AU - Huang, Qian
AU - Wang, Feng
AU - Zhang, Deping
N1 - Publisher Copyright:
© 2014 The Authors.
PY - 2014
Y1 - 2014
N2 - CO2 injection to enhance oil recovery (CO2-EOR), which can both sequester CO2 and increase crude oil supply, is now widely used all over the world. According to the prediction of international energy agency (IEA) in 2008, the potential ability of enhancing oil recovery for CO2-EOR is about 1600×108-3000×108 barrels, which will make a positive contribution to the sustainable development of oil and gas. However, CO2 injection pipes in deep wells are often suffering acid corrosion, by which the structural integrity of steel was destroyed. Thus, boiling liquid expanding vapor explosion (BLEVE) accident is more than likely to happen for CO2 injection pipes with high operating pressure. This paper gives a short description of CO2 BLEVE and presents results from preliminary, small scale experiments of CO2 BLEVE in injection pipes. The results indicated that CO2 undergone special decompression behavior during injection and the rapid phase transitions in BLEVE were different from gas explosions. But tremendous amounts of energy could also be released during BLEVE of this nonflammable pressurized liquefied gas (PLG) in P110 injection pipe, which made the burst pressure be more than 50 MPa and the pipes blasted in several fragments. The geometrical parameters of corrosion defect in injection pipe were extremely important to BLEVE and the final burst pressure.
AB - CO2 injection to enhance oil recovery (CO2-EOR), which can both sequester CO2 and increase crude oil supply, is now widely used all over the world. According to the prediction of international energy agency (IEA) in 2008, the potential ability of enhancing oil recovery for CO2-EOR is about 1600×108-3000×108 barrels, which will make a positive contribution to the sustainable development of oil and gas. However, CO2 injection pipes in deep wells are often suffering acid corrosion, by which the structural integrity of steel was destroyed. Thus, boiling liquid expanding vapor explosion (BLEVE) accident is more than likely to happen for CO2 injection pipes with high operating pressure. This paper gives a short description of CO2 BLEVE and presents results from preliminary, small scale experiments of CO2 BLEVE in injection pipes. The results indicated that CO2 undergone special decompression behavior during injection and the rapid phase transitions in BLEVE were different from gas explosions. But tremendous amounts of energy could also be released during BLEVE of this nonflammable pressurized liquefied gas (PLG) in P110 injection pipe, which made the burst pressure be more than 50 MPa and the pipes blasted in several fragments. The geometrical parameters of corrosion defect in injection pipe were extremely important to BLEVE and the final burst pressure.
KW - Boiling liquid expanding vapor explosion (BLEVE)
KW - Burst pressure
KW - CO enhanced oil recovery (CO EOR)
KW - Carbon capture and storage (CCS)
UR - http://www.scopus.com/inward/record.url?scp=84922356138&partnerID=8YFLogxK
U2 - 10.1016/j.egypro.2014.11.964
DO - 10.1016/j.egypro.2014.11.964
M3 - Conference article
AN - SCOPUS:84922356138
SN - 1876-6102
VL - 61
SP - 782
EP - 786
JO - Energy Procedia
JF - Energy Procedia
T2 - 6th International Conference on Applied Energy, ICAE 2014
Y2 - 30 May 2014 through 2 June 2014
ER -