8.3K views · 277 reactions | This simulation from EP Energy takes a look at oil production at the nanoscale! Read more about it in this month's JPT: https://goo.gl/mxyC4d Falling pressure allows natural gas trapped in the oil (orange) to bubble out. The free gas (yellow) expands and expels the oil (red). Pores connect and free oil and gas concentrate in spots (greenish), Production ends when the gas stops escaping. | Society of Petroleum Engineers | Facebook