The Mine Sweeper achievement is where you go to SparkSocket Minefield and get blown up by 10 consecutive mines..
Basically.. you get hit by a mine.. and as soon as you land you have a very very small period of time in which you need to get hit by another to continue the achievement.. if not, it resets.
So the easiest way to get this is, get hit by a mine.. and while you're up in the air, determine where you are going to fall and find the closest mine to it and as soon as you land run to it..
Rinse, and repeat.
Got mine in like... 10 seconds. lol
Hope this helps someone.. and hope it was clear enough