英语翻译Evidence from oil and gas fields indicates that hydrocar

英语翻译
Evidence from oil and gas fields indicates that hydrocarbons and other gases and fluids including CO2 can remain trapped for millions of years (Magoon and Dow,1994; Bradshaw et al.,2005).Carbon dioxide has a tendency to remain in the subsurface (relative to hydrocarbons) via its many physicochemical
immobilization mechanisms.World-class petroleum provinces have storage times for oil and gas of 5–100 million years,others for 350 million years,while some minor petroleum accumulations have been stored for up to 1400 million years.However,some natural traps do leak,which reinforces the need for careful site selection (Section 5.3),characterization (Section 5.4) and injection practices (Section 5.5).