Tertius wrote: Tue Apr 23, 2024 12:34 pm
Some gamers still around from the earliest early access development versions seem to have a trauma about oil production and perpetuate this trauma. I'm not from that time, but from what I read, advanced oil processing (the recipe for turning crude oil into heavy oil, light oil and petroleum gas) seemed to be slightly more simple than it is today.
I would say it's the opposite. Today it is simpler than it used to be. It used to be that both oil receipe were giving 3 products, but with different ratios, when researching advanced processing, there was better ratio, but the complexity of managing all 3 output to avoid clogging was already necessary for basic oil processing. Except you could not use cracking with the basic tech, so everyone was researching quickly the advanced oil processing, and setting up cracking otherwise you'd either have to mine the tanks. Or at some early stage of factorio developement you could void fluid in steam engines, not just steam, but also oil.
I agree with your conclusion nonetheless.
Npl wrote: Tue Apr 23, 2024 7:48 am
I'm just starting with oil procession so I dont kown how bad of a problem this is, but there's a general idea that you should be able to expand resources, buffer them, expand production and things still kinda work. If I dont consume everything I am not producing enough, rinse and repeat.
Currently I only have 2 pump jacks with the next field being way of and right next to yuuuge biter bases. I agree that my first and foremost problem is getting more oil (and getting big guns for that), but from what I read its a inexplicable hard problem already to evenly fill multiple fluid wagons.
It doesn't have to be a problem

fluid wagons can handle 25K fluid, there is very little need to avoid filling them entirely, and when they have 25K fluid, they will have an even quantity of fluid in them. If you have only 2 pumpjacks, you don't need to try and fill multiple wagons, 1 is enough, when the pumpjack will deplete it will take forever to try and fill an large train.
If you wish to fill multiple wagons at equal rate, then it's possible to increase or derease the limit of the train stop that is used to load the oil onto the train so that no train try to reach the train stop if there is not at least 25000 oil buffered for an incoming train per wagons in their dedicated tank. ( 2 wagon => 50 000 K required for 1 incoming train, 3 wagons, limit set at 75K 4 wagons, 100K ...)
The main thing to avoid i think is a 10 wagons train that can handle 250K oil waiting for the 2 pumpjacks to fill it entirely when those output at 2/second. You could later in game have several of those oil patch and ideally you don't want a train semi-idle on each of them. You'd want few trains that only visit the oupost that have enough oil for a fast loading, this way you don't need to keep adding trains that will do nothing but waiting 99% of time.
If not all wagons have exactly the same rate at loading it doesn't matter much if the oil is buffered and can be loaded in every wagons. It would change maybe 1 or 2 second the loading time, whereas it could be in hours if large trains are allowed to visit almost empty outpost. 1 or 2 second delay will occur anyway if the train cross the path of another train due to traffic and so on the magnitude of which is higher.
Things that are a "problem" would be trying to split evenly 1000 fluid into 7 wagons. Those are traps, systems shouldn't be made to rely on things that are not possible to do.
Trying to "split" 1000 fluid per second, through 3 pipes is a more subtle trap but still a trap. ( 333.33333333333..... fluids per second)
When you don't have enough fluid, you could be tempted to do " 500 fluid per second" into 250 and 250. That's also a trap even if the numbers are nicer, a minor trap, but still a trap, because in game if you have "enough fluid" and 2 consumer that consume the same, it will balance out anyway, the fluid will fill the pipe network, and each consumer will take as needed. It's "needlessly" difficult to try and split the fluid by oneself to distribute it evenly instead of using the way consumer just pick up fluid from pipes. It is less of a dead-end as the previous traps as it is possible to solve the problem, not impossible due to having no control over the roundings that occurs. But it is very difficult when there exist easy method, as such it's difficult to consider the difficulty of the task as problem for me. Yes the task is difficult, but it is also not necessary compared to just filling entirely the fluid wagons all the time, full/empty .