A good overview, except the process times are incorrect.
I have tested this extensively and found that ALL the quarries and pumpjacks on AU pure convert 1 LGF to the relevant output material every 20seconds EXACTLY. i.e.
HQM:
1LGF to 1HQM every 20sec
10 LGF to 10 HQM every 200sec (3min 20sec)
500 LGF to 500HQM HQM every 10,000 sec (2 hours 47min)
1,800 LGF to 1,800 HQM every 36,000 sec (10 hours)
SULFUR QUARRY:
1 LGF to 4 sulfur ore every 20sec
10 LGF to 40 sulfur ore every 200sec (3min 20sec)
500 LGF to 2,000 sulfur ore every 10,000 sec (2 hours 47min)
3,000 LGF to 12,000 sulfur ore every 60,000 sec (16 hours 40min)
STONE QUARRY
1 LGF to 20 stone and 4 metal ore every 20sec
10 LGF to 200 stone and 40 metal ore every 200sec (3min 20sec)
500 LGF to 10,000 stone and 2,000 metal ore every 10,000 sec (2 hours 47min)
750 LGF to 15,000 stone and 3,000 metal ore every 15,000 sec (4 hours 10min)
PUMPJACKS
1 LGF to 1 crude oil every 20sec
10 LGF to 10 crude oil every 200sec (3min 20sec)
500 LGF to 500 crude oil every 10,000 sec (2 hours 47min)
3,000 LGF to 3,000 crude oil every 60,000 sec (16 hours 40min)
This can be very easily tested by just running a stopwatch and checking lap times every time the quarry/pumpjack outputs. I haven't gotten more that a few hundredths of a sec either side of 20sec on ALL the quarries and pumpjacks. i.e. their process times are identical.
The one difference is the FIRST processing, which can be anywhere from 0sec (immediately) to 20sec after you place the LGF in. I assume the quarry/pumpjack continually cycles every 20sec so if you put your LGF when the cycle has 10 secs to go then you'll get a time of 10sec for 1LGF the first time then every 20sec thereafter, so 30sec for 2LGF, 50sec for 4 etc which will throw your calculations out.