Originally Posted by WillTravel4Food

You can find all this on the following pages. Mileage accrual rates are at the end of each page.
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Singapore

For the QR flights in D, you would earn RDM at 2.25 times the mileage flown. For EQM you would earn 1.25 times the miles flown. For your example: RDM = 7,333, and EQM = 4,074.
For SQ RDM would be 2.0 times, and EQM 1.0 times. For your example: RDM = 13,530, EQM = 6,765.

Your status will be earned for AS, with an added benefit of achieving OW status through miles credited from all AS partners, even if they aren't OW members. I often have DE mileage credit that gets me over the hump to Gold or 75K. OW status is mileage origin agnostic.