the depth of the intended top of the sand column the initial rate of descension of the sand stick was several times the anticipated descension rate of unconsolidated sand the molecular weight of the polyethylene glycol significantly affects the rate at which the sand stick falls through the column with higher weights causing a more rapid descent the above field experience has shown that wells in the approximate range of 8 000 to 16 000 feet serve as appropriate applications for a sand stick using polyethylene glycol with approximately 8000 molecular weight cosmetic toiletry and fragrance association 34 peg 150 34 in these applications which involved approximately 2 44 inch internal diameter tubing 3 55 inch internal diameter casing and 4 09 inch internal diameter casing the sand stick diameter was 1 75 inches with a length of 24 inches these dimensions provided approximately one linear foot of sand column in the tubing application in such applications it was determined that the 1 75 inch sand stick diameter in the 2 44 inch internal diameter tubing produced an increased likelihood of unwanted accumulations of sand at depths less than the target it is anticipated that the optimum sand stick diameter for 2 44 inch internal diameter tubing will be approximately 1 5 inches when this diameter is used the sand stick length is increased to approximately 30 inches in order to provide an equivalent sand volume our field experience also included a sand stick combining 20 40.