Facts and thoughts about the Venezuelan oil and its actual usefulness for the US

Question is: why did the US really invade VE and dispose of Maduro? Because if it's because of the "suddenly available abundance of oil from the largest oil reserves on the planet", I have a few news for Don... While it is true that VE has massive amounts of oil, it's very hard to get by. Much of it is super massive heavy oil (read: inferior quality) and must expensively be extracted from oil sands and oil shales. Also, the oil industry is pretty much in shambles due to Chavez and Maduro. Currently, they have not really adequate refinery capacity to process substantial amounts. Venezuelan facilities have not be serviced properly since Chavez times and are in a quite bad state. Production was further slowed down due to export sanctions. The US, on the other hand, has such refineries suitable for low-quality VE oil at their East cost, and also in Guyana, of which it is the protecting power. China has such refineries as well, fitting because it's the main buyer of VE oil. I'd not bet in any way that oil production would resume anytime soon. That will take quite a time to restore (years). But still: the amount of oils are immense. Difficult and expensive to produce, with lower earnings per barrel due to lower quality. But still, might be valuable some time in the future. Especially for China. If (!) China still needs so much oil in the future. I mean, look at their hyperfast progress with renewables (and also upscaling their nuclear game). For now, for the US it would be quite expensive oil, only desirable in very strong demand times, which currently isn't the case. But oh well, they will find out themselves in due time, I guess... I for one don't expect the oil industry to close notably changed at the end of the first trading day after the coup, after possibly some initial turmoil. Gold on the other hand, and defense... So, what's your take?