Use the given rules

3- Determine the amount of oil required to reduce the weight of 100bbl drilling fluid that ha a density of 13.5Ib/gal to 12Ib/ gal. (2M) Weight Reduction with Oil X=(w27.00)v1(w1w2) - Where: - X=bbl of oil required - Vi= Initial volume (bbl) - W1= Initial fluid density (lbm/gal) - W2 = Desired fluid density Most calculation of drilling fluid is (volume and density) 1. All volumes of substance are able to summation VS=Sm2vm2(m2m1).1VS=Sm2Vm2(m2m1)..2 2. All weights of substance are able to summation sVs=smisVms(mtm1) 3. But when reduce the density of mud by added water or oil, equ. 1 becomes when using water, density 8.33lb/gal Vw=m28.33Vm1(m1m2)