Domestic oil and gas or imported oil and gas – An energy return on investment perspective

摘要: Abstract Both domestic oil and gas imported are essential to meet the enormous energy demand in China, which is incurred by its rapid economic growth. However, better than another? To address this issue, an return on investment (EROI) analysis, a useful method evaluate physical performance of process, applied. Besides, EROIs time series offshore onshore calculated, causes change tendency studied. The from different import countries also laying foundation for optimization structure EROI perspective. Moreover, environmental inputs, cause externality results show that entire fluctuate between 8.5 12, lie range 2.9 9.5. We conclude that: 1) higher those gas, indicating has efficiency gas. 2) influenced extractions natural additionally related prices. 3) From perspective, LNG pipeline crude oil. Australia, Kazakhstan, USA should be prioritized China LNG, respectively. 4) Environmental inputs reduce EROIs. Therefore more caution paid reduction inputs.