Really what we do here is pumper her for a while then shoot a fluid level . If fluid is still high in the hole we speed or increase the stroke, if there is still fluid high up the hole, sorry but were going to have bring in a bigger pump . Go TECO ( Shooting a fluid level is where you shoot a sonic wave down the casing it will bounce back when it hits fluid , you count the bumps you get from the joints of pipe 30foot a joint and you know how far down the fluid is .