In my rough calculation, these pipelines that have been approved will allow for an additional 1.39 million barrels of oil a day to be exported from Alberta.
In June of this year, the Canadian Association of Petroleum Producers, revised their latest growth forecast for oil sands and conventional oil production, saying that they expect oil production in Canada to grow from 3.85 million barrels per day of production last year to 5.1 million barrels per day in 2030. That's an additional 1.2 million barrels per day.
It would seem that the two new pipelines that the current government has approved will be able to handle much of the increase in oil production we will be seeing over the next 12 years.